O.L. Sealing Systems - VS-TRADING · 2019-05-24 · O-Ring energizer material SlipRings can be used...

O.L. Sealing Systems

2

Contents


Introduction to O.L. Sealing Systems Page 3

Piston Seals

SlipRing Page 4, 5

SharpSeal Page 6, 7

O-Cap Page 8

Scrapers

WypeRing Page 9

Rod Seals

SlipRing Page 10, 11

SharpSeal Page 12, 13

O-Cap Page 14

Back-upRings

BakRing Page 15

Wear Rings

GuideStrip Page 18, 19, 20

Materials 1

Installation Instructions Page 22

O-Ring dimensional list Page 22

Other O.L. Products Page 23

Rotating Seals

TurnRing External Page 16

TurnRing Internal Page 17

3

Introduction


O.L. Sealing SystemsO. L. Sealing Systems consists of a range of static and dynamic SlipRing® seals and arange of GuideStrip® bearings for the guiding of pistons and piston rods. The greatvariety of designs and materials makes it possible to solve most sealing problems.

SlipRing sealsSlipRing seals consist of an elastic base – the energizer – covered by a SlipRing of aharder and more wear resistant material. The idea behind SlipRing seals is to combinethe properties of an elastomer with the excellent frictional and wear resistent propertiesof the SlipRing material.As the SlipRing is the »dynamic« part of the seal which slides against the sealing sur-face, it is obvious that the high quality of the SlipRing material is of major importancefor reliable functioning of the seal.The Kefloy® materials are a series of high quality composite materials especially devel-oped by O.L. Seals for use for SlipRings.

Function of SlipRing sealsSlipRing seals are so-called automatic seals. This means that the seal is actuated bythe pressure; the higher the pressure, the higher the force between the SlipRing andthe sealing surface.

Advantages of SlipRing sealsCompared to conventional elastomeric seals, SlipRing seals have several advantages.

Service lifeThe excellent wear properties of Kefloy materials assure the SlipRing seals a longservice life even under harsh working conditions.

Extrusion resistanceThe hardness of Kefloy makes SlipRing seals resistant to extrusion.

Low FrictionThe Kefloy materials have a low coefficient of friction. SlipRings used as dynamic sealsabsorb less energy and generate less heat than conventional seals.

No Stick-slipThe static and the dynamic coefficient of friction of Kefloy is almost identical. Thisensures stick-slip free start and stop and a smooth and chatter free travel plus thepossibility of accurate positioning.

No vulcanizingUnlike many other materials Kefloy will never vulcanize to the sealing surface. Evenafter many years of standstill, SlipRings will function smooth and troublefree.

Wide temperature rangeSlipRings of Kefloy will maintain their good properties from low to high temperatures.By selecting the right O-Ring energizer material, SlipRing seals will function troublefreeover a wide range of temperatures.

Wide fluid rangeKefloy materials are resistant to almost all types of fluids. Combined with the right O-Ring energizer material SlipRings can be used with nearly all fluids.

High speedsSlipRings of Kefloy can be used for reciprocating applications with speeds up to 15m/sec.

1 O-Ring energizer2 SlipRing

2

1

Typical values for 50 mm piston seals1 Elastomer seal2 SlipRing seal

1 Elastomer seal2 SlipRing seal

Pressure

Stick-slip

10 20 30 40MPa

Hydraulic pressure

Fric

tion

Velocity

Fric

tion

4

Piston SealsSlipRing®


SlipRing type 2522-is a double acting piston seal consisting of an outer sliding part of Kefloy® energized bya rubber O-ring. SlipRing is pressure responsive. SlipRing can be used with a greatvariety of fluids. Kefloy is compatible with virtually all fluids. To avoid extrusion SlipRingis chamfered.SlipRing type 2522- is a heavy duty piston seal recommended for pressures up to 40MPa. Where an extremely low friction is required a light series of SlipRing 2522- isavailable. See installation chart.

SlipRing type 2532-is a double acting piston seal consisting of an outer sliding part of Kefloy energized bya rubber O-ring. SlipRing is pressure responsive. SlipRing can be used with a greatvairety of fluids. SlipRing type 2532- is not chamfered and should not be used wherepressure exceeds 20 MPa. Where an extremely low friction is required a light series of2532- is available. See installation chart.

StandardSeries

DBorediam.

Type no + 0,2- 0

max.H 9 h 9 10 MP 20 MPa 40 MPa Min. Type no.

dGroovediam.

LGrooveWidth

RRadius

GRadial Gap

System pressure

CChamfer

O-RingCrosssec.

LightSeries

DBorediam.

SGroovedepth

25220 7 - 14,9 D- 4,9 2,45 2,2 0,4 0,30 0,20 0,15 0,7 1,78 25220 15 - 39,925320 2532025221 15 - 39,9 D- 7,5 3,75 3,2 0,6 0,40 0,25 0,15 1,0 2,62 25221 40 - 79,925321 25321 25222 40 - 79,9 D-11,0 5,50 4,2 1,0 0,40 0,25 0,20 1,3 3,53 25222 80 - 132,925322 2532225223 80 - 132,9 D-15,5 7,75 6,3 1,3 0,50 0,30 0,20 2,0 5,33 25223 133 - 329,925323 2532325224 133 - 329,9 D-21,0 10,50 8,1 1,8 0,60 0,35 0,25 2,5 7,00 25224 330 - 669,925324 2532425225 330 - 669,9 D-24,5 12,25 8,1 1,8 0,60 0,35 0,25 3,0 7,00 25225 670 - 999,925325 2532525226 670 - 999,9 D-28,0 14,00 9,5 2,5 0,70 0,50 0,30 3,5 8,40 25226 ≥ 1000 25326 2532625227 ≥ 1000 D-38,0 19,00 13,8 3,0 1,00 0,70 0,60 4,0 12,0025327

Ordering Example

Standard duty SlipRing Type 2522-

Bore diameter: 63,0 mm

Medium: Hydraulic oil

Sealing surface: Steel

Part no 25222-0630-13

Seal Type

Series

Bore dia. x 10

Material compound no

O-Ring size 50,39 x 3,53

O-Ring to be ordered separately

G

Ra ≤ 0,2 µm

Ra ≤ 1,6 µm

5

Piston SealsSlipRing®


Working Parameters

PressureSlipRing type 2522- up to 40 MPa.SlipRing type 2532- up to 20 MPa.For pressures exceeding 40 MPa, please contact your O.L. Seals distributor.

Temperature-40°C to +180°C. For temperatures exceeding this temperature range, please contactyour O.L. Seals distributor.

VelocityReciprocating up to 15 m/sec. Frequenzy: up to 5 Hz.Should not be used for rotating or oscillating applications.

FluidsKefloy is compatible with virtually all fluids – liquids as well as gases. By selecting theright material for the O-ring energizer, it is possible to cover almost all fluids.

Material selection guide

For other fluids or sealing surfaces, please consult your O.L. Seals distributor.

Seal Selection Guide

SlipRing Type 2522-For double acting applications where pressure does not exceed 40 MPa.

SlipRing Type 2532-For double acting applications where pressure is below 20 MPa.

Light Duty SeriesWhere a very low friction is required one of the Light Duty Series is recommended.Where space limitations make it necessary the Light Duty Series should be chosen.

O-Ring SizeCross section according to installationchart.O-Ring I.D. as close to groove dia. d aspossible.O-Ring I.D. not bigger than d +3%.O-Ring I.D. not smaller than d -5%.

Installation

See page 22 for further information of instal-lation of SlipRing piston seals.

O-Ring manufacturers recommendation forthe actual fluid should always be followed.

NotchesIn systems with rapid pressure changese.g. steering systems, it is necessary tofurnish the SlipRings with sidewallnotches. The notches ensure a quick sealresponse due to pressure changes.To order SlipRing with notches – addsuffix »N« behind compound code.Example: 25223-0900-22 N.

Fluid Mating surface SlipRing compound

Hydraulic oil SteelMotor oil Chromeplated steel Kefloy 13Grease Cast iron

Other minerals oils AluminiumStainless steel Kefloy 22Bronze Ultralen 90Soft metals

Water SteelWater hydraulic Chromeplated steelSteam Cast iron Kefloy 22Non lubricating fluids Aluminium Kefloy 28Air, dry or lubricated Stainless steel Ultralen 90

BronzeSoft metals

Fluid O-Ring material

Hydraulic oilMotor oil NBR (Buna N)GreaseOther mineral oils At temperaturesWater hydraulics above 120°C useAir, dry or lubricated Viton O-Ring

Water, hotSteam EPDM

Synthetic hydraulic Specialfluids material

Seal SlipRing can be installed in closedseries grooves when diameter D is above

the following.

SlipRing SlipRingcompound compoundKefloy 13 Kefloy 22

0 8 mm 15 mm1 15 mm 20 mm2 20 mm 30 mm3 40 mm 50 mm4 80 mm 80 mm5 130 mm 130 mm6 300 mm 300 mm7 500 mm 500 mm

6 O.L. Sealing Systems

SharpSeal type 2512-is a very efficient SINGLE ACTING seal. The design of the seal concentrates the sealingforces at the sealing edge. This ensures an excellent leakage control over the wholepressure range. The sealing edge virtually scrapes the sealing surface dry. Where acompletely dry sealing surface is required, it is possible to install SharpSeal in tandemas shown on the drawing. The SharpSeal ensures automatic pressure relief betweenthe two seals. No ventilation between the seals is necessary. SharpSeal is also availa-ble in a light series.

Ordering Example

Standard duty SharpSeal 2512-

Bore diameter: 63,0 mm


Sealing surface: Steel

Part no 25123-0630-13

Seal Type

Series

Bore dia. x 10

Compound no



StandardSeries

DBorediam.

Type no + 0,2- 0

max.H 9 h 9 10 MP 20 MPa 40 MPa Min. Type no.

dGroovediam.

LGrooveWidth

RRadius

GRadial Gap

System pressure

CChamfer

O-RingCrosssec.

LightSeries

DBorediam.

SGroovedepth

25120 8 - 16,9 D- 4,9 2,45 2,2 0,4 0,30 0,20 0,15 0,7 1,78 25120 17 - 26,9

25121 17 - 26,9 D- 7,3 3,65 3,2 0,6 0,40 0,25 0,15 1,0 2,62 25121 27 - 59,9

25122 27 - 59,9 D-10,7 5,35 4,2 1,0 0,40 0,25 0,20 1,3 3,53 25122 60 - 199,9

25123 60 - 199,9 D-15,1 7,55 6,3 1,3 0,50 0,30 0,20 2,0 5,33 25123 200 - 255,9

25124 200 - 255,9 D-20,5 10,25 8,1 1,8 0,60 0,35 0,25 2,5 7,00 25124 256 - 669,9

25125 256 - 669,9 D-24,0 12,00 8,1 1,8 0,60 0,35 0,25 3,0 7,00 25125 670 - 999,9

25126 670 - 999,9 D-27,3 13,65 9,5 2,5 0,70 0,50 0,30 3,5 8,40 25126 ≥ 1000

25127 ≥ 1000 D-38,0 19,00 13,8 3,0 1,00 0,70 0,60 4,0 12,00

Piston SealsSharpSeal®

G

Ra ≤ 0,2 µm

Ra ≤ 1,6 µm

7O.L. Sealing Systems

Piston SealsSharpSeal®

Working Parameters

PressureSharp Seal type 2512- up to 40 MPaFor pressures exceeding 40 MPa, please contact your O.L. Seals distributor.


VelocityReciprocating up to 15 m/sec.Frequency: up to 5 Hz.Should not be used for rotating or oscillating applications.

FluidsKefloy is compatible with virtually all fluids – liquids as well as gases. By selecting theright material for the O-Ring energizer, it is possible to cover almost all fluids.




SharpSeal Type 2512-For single acting applications where fluid is a liquid. Can be installed in tandem wherean absolutely dry sealing surface is required.


O-Ring SizeCross section according to installationchart.O-Ring I.D. as close to groove dia. d aspossible.O-Ring I.D. not bigger than d +3%.O-Ring I.D. not smaller than d -5%.

Installation

See page 22 for further information of instal-lation of SlipRing piston seals.






BronzeSoft metals


Hydraulic oilMotor oil NBR (Buna N)GreaseOther mineral oils At temperaturesWater hydraulics above 120°C useAir, dry or lubricated Viton O-Ring


Synthetic hydraulic Special materialfluids

Seal SharpSeal can be installed in closedseries grooves when diameter D is above

the following.

SharpSeal SharpSealcompound compoundKefloy 13 Kefloy 22

0 8 mm 15 mm1 15 mm 20 mm2 20 mm 30 mm3 40 mm 50 mm4 80 mm 80 mm5 130 mm 130 mm6 300 mm 300 mm7 500 mm 500 mm

8

Piston SealsO-Cap®


O-Cap®

O-Cap is a double acting seal using the same groove dimensions as an O-Ring. It con-sists of a Kefloy® ring which is the dynamic part of the seal, and an O-Ring. The O-Capis designed to eliminate the frictional and wear problems, which may occur with rubberO-Rings.There is a range of O-Caps for British and American Standard O-Rings and a range forSwedish standard O-Rings. In each range there are series of O-Caps which fit into O-Ring grooves meant for O-Rings without back-up ring, with one back-up ring and withtwo back-up rings.

Working ParametersPressureUp to 40 MPa.

Temperature-50°C to +180°C, though limited by O-Ring.

VelocityReciprocating up to 15 m/sec.Frequency up to 5 Hz.

FluidsVirtually all fluids, though limited by O-Ring. For working parameters outside thestated, please contact your O.L. Sealsdistributor.

O-Ring SizeO-Ring cross section according to installa-tion chart.O-Ring I.D. as close to dia. d as possible.O-Ring I.D. not bigger than d +3%O-Ring I.D. not smaller than d -5%

O-cap LGrooveWidth

Type no + 0,20

Type no + 0,20

Type no + 0,20

H 10 h 9 max. min.

O-cap L1

GrooveWidth

L2

GrooveWidth

DBorediam.

dGroovediam.

SGrooveDepth

RRadius

GRadialGap

CChamfer

O-RingCrosssec.

O-RingStandard

O-Cap

25420 2,4 25440 3,8 25460 5,3 8- 13,9 D - 2,9 1,45 0,4 0,08 0,7 1,7825421 3,6 25441 4,6 25461 6,2 14- 24,9 D - 4,5 2,25 0,5 0,10 1,0 2,62 A.S25422 4,8 25442 5,7 25462 7,7 25- 49,9 D - 6,2 3,10 0,6 0,12 1,3 3,53 B.S25423 7,1 25443 8,5 25463 10,8 46- 124,9 D - 9,4 4,70 0,7 0,15 2,0 5,3325424 9,5 25444 11,2 25464 14,7 125- 400,9 D - 12,2 6,10 0,8 0,15 2,5 7,00

25520 3,2 25540 4,6 25560 6,0 8- 24,9 D - 4,0 2,0 0,5 0,08 1,0 2,425521 4,0 25541 5,4 25561 6,8 25- 54,9 D - 5,0 2,5 1,0 0,10 1,3 3,025522 7,5 25542 9,3 25562 11,1 55-159,9 D - 10,0 5,0 1,0 0,12 2,1 5,7 S.M.S25523 11,0 25543 13,2 25563 15,4 160-265,9 D - 15,0 7,5 1,0 0,15 3,0 8,4

Fluid Mating surface O-Cap compound


Other minerals oils AluminiumStainless steel Kefloy 25BronzeSoft metals


BronzeSoft metals

Ordering ExampleO-Cap type 2544-. Groove for O-Ring + 1Back-Up RingO-Ring cross section: 5,33 mmBore diameter: 112,0 mmMedium: WaterSealing surface: Aluminium

Part no 25443-1120-25

Seal Type

Series

Bore dia. x 10

Compound no

O-Ring to be ordered separately.O-Ring size 100,97 x 5,33O-Ring to be ordered separately.

InstallationSee piston seal installation recommenda-tions on page 22.

Materials

Ra ≤ 0,2 µm

Ra ≤ 1,6 µm

Blend radius


WypeRing® Type 2565-WypeRing is a highly efficient double scraper. It consists of a scraping ring with oneexternal and one internal scraping lip plus an O-Ring which ensures a firm contact between the scraping lip and the piston rod.The external scraping lip wipes the retracting piston rod free from all kinds of dirt, mud,ice, etc. which might stick to the piston rod. The internal lip retains the residual oil filmwhich may pass under the rod seal.

WypeRing material selection recommendationWypeRings working against hard surfaces such as chrome or hardened steel should bemade in Kefloy 32.WypeRings working against soft surfaces such as stainless steel or aluminium shouldbe made in Kefloy 22.WypeRing can be made in any of the Kefloy materials. See material information onpage 21.

WypeRing installation hints25650 Can be installed in closed groove for dia. > 30

25651 Can be installed in closed groove for dia. > 40





WypeRing d D L R A C O-Ring BRod Groove Groove Radius Bore Chamfer Cross O-Ring I.D.dia. dia. width dia. section

Type no h 9 H 9 +0,2 max. +0,2 min.0 - 0,2

25650 6- 39,9 d + 7,6 4,2 0,6 d + 1,0 0,7 2,62 d + 2,525651 40- 69,9 d + 8,8 6,3 0,6 d + 1,5 1,0 2,62 d + 3,525652 70-139,9 d + 12,2 8,1 0,8 d + 2,0 1,3 3,53 d + 4,025653 140-399,9 d + 16,0 9,5 1,3 d + 2,5 2,0 5,33 d + 5,025654 400-649,9 d + 24,0 14,0 1,5 d + 2,5 2,5 7,00 d + 6,025655 650- d + 27,3 16,0 2,5 d + 2,5 3,0 8,40 d + 7,0


FluidsVirtually all fluids, though limited by O-Ring.

Working Parameters

Temperature-50°C to +200°C (dependent on O-Ring material).

Ordering ExampleWypeRing type 2565-

Part no 25650-0250-32

WypeRing type

Series

Rod dia. 25,0 x 10

Compound no

O-Ring size 28,24 x 2,62O-Ring to be ordered separately.

O-Ring SizeO-Ring cross section according to instal-lation chart.O-Ring I.D. as close to dia. B as possible.O-Ring I.D. not smaller than B -5%.O-Ring I.D. not bigger than B +3%.

ScrapersWypeRing®

Ra ≤ 0,2 µm

Ra ≤ 1,6 µm

Blend radius


SlipRing type 2521-SlipRing 2521- is a double acting rod seal. To avoid extrusion at high pressure –temperature combinations, SlipRing type 2521- is chamfered. It is a heavy duty sealrecommended for pressures up to 40 MPa. Where an extremely low friction is requireda light series of SlipRing is available.

SlipRing Type 2531-SlipRing 2531- is a double acting rod seal mainly used for lighter applications. SlipRing2531- is not chamfered and should not be used for high pressure – temperature com-binations. SlipRing 2531- is recommended for pressures up to 20 MPa. A light series isavailable.

Ordering Example

Double action rod seal

Rod diameter: 15,0 mm


Rod material: Chromed steel

Part no 25211-0150-13

SlipRing Type

Series

Rod dia. x 10

Compound no



StandardSeries

dRod

diam.Type no + 0,2

- 0max.h 9 H 9 10

MPa20

MPa40

MPaMin. Type no. h 9

DGroovediam.

LGrooveWidth

RRadius

GRadial Gap

System pressure

CChamfer

B O-Ring

ID

O-RingCross

section

LightSeries

dRod

diam.

SGroovedepth

25210 3 - 7,9 d + 4,9 2,45 2,2 0,4 0,30 0,20 0,15 0,7 d + 2,0 1,78 25210 8- 18,925310 2531025211 8 - 18,9 d + 7,3 3,65 3,2 0,6 0,40 0,25 0,15 1,0 d + 3,4 2,62 25211 19- 37,925311 2531125212 19 - 37,9 d + 10,7 5,35 4,2 1,0 0,40 0,25 0,20 1,3 d + 5,1 3,53 25212 38-199,925312 2531225213 38 - 199,9 d + 15,1 7,55 6,3 1,3 0,50 0,30 0,20 2,0 d + 6,9 5,33 25213 200-255,925313 2531325214 200 - 255,9 d + 20,5 10,25 8,1 1,8 0,60 0,35 0,25 2,5 d + 9,5 7,00 25214 256-649,925314 2531425215 256 - 649,9 d + 24,0 12,00 8,1 1,8 0,60 0,35 0,25 2,5 d + 13,0 7,00 25215 650-999,925315 2531525216 650 - 999,9 d + 27,3 13,65 9,5 2,5 0,70 0,50 0,30 3,0 d + 14,0 8,40 25216 ≥ 100025316 2531625217 ≥ 1000 d + 38,0 19,00 13,8 3,0 1,00 0,70 0,60 3,5 d + 18,0 12,0025317

Rod SealsSlipRing®

Ra ≤ 1,6 µm

Ra ≤ 0,2 µm

Blend radiusG

11

Rod SealsSlipRing®






BronzeSoft metals


Hydraulic oilMotor oil NBR (Buna N)GreaseOther mineral oils At temperaturesWater, cold above 120°C useWater hydraulics Viton O-RingAir, dry or lubricated



Working Range

PressureSlipRing type 2521- up to 40 MPa.SlipRing type 2531- up to 20 MPa.For pressures exceeding 40 MPa, please contact your O.L. Seals distributor.


VelocityReciprocating up to 15 m/sec. Frequenzy: up to 5 Hz.Should not be used for rotating or oscillating applications.





SlipRing Type 2521-For double acting applications. For standard seal the maximum pressure is 40 MPa.Also suitable for single acting applications where the fluid is a gas.

SlipRing Type 2531-For double acting applications where pressure is below 20 MPa. Also for single actingapplications where the fluid is a gas.


O-Ring SizeO-Ring cross section according to instal-lation chart.O-Ring I.D. as close to dia. B as possible.O-Ring I.D. not bigger than B +3%.O-Ring I.D. not smaller than B -5%.


NotchesIn systems with rapid pressure changes,e.g. steering systems, it is necessary tofurnish the SlipRings with sidewallnotches. The notches ensure a quick sealresponse due to pressure changes.To order SlipRing with notches – addsuffix »N« behind compound code.Example: 25214-2200-13 N.


StandardSeries

dRod

diam.Type no + 0,2

- 0max.h 9 H 9 10

MP20

MPa40

MPaMin. Type no. h 9

DGroovediam.

LGrooveWidth

RRadius

GRadial Gap

System pressure

CChamfer

B O-Ring

ID

O-RingCross

section

LightSeries

dRod

diam.

SGroovedepth

25110 2- 7,9 d + 4,9 2,45 2,2 0,4 0,30 0,20 0,15 0,7 d + 2,0 1,78 25110 8- 18,9

25111 8- 18,9 d + 7,3 3,65 3,2 0,6 0,40 0,25 0,15 1,0 d + 3,4 2,62 25111 19- 37,9

25112 19- 37,9 d + 10,7 5,35 4,2 1,0 0,40 0,25 0,20 1,3 d + 5,1 3,53 25112 38-199,9

25113 38-199,9 d + 15,1 7,55 6,3 1,3 0,50 0,30 0,20 2,0 d + 6,9 5,33 25113 200-255,9

25114 200-255,9 d + 20,5 10,25 8,1 1,8 0,60 0,35 0,25 2,5 d + 9,5 7,00 25114 256-649,9

25115 256-649,9 d + 24,0 12,00 8,1 1,8 0,60 0,35 0,25 2,5 d + 13,0 7,00 25115 650-999,9

25116 650-999,9 d + 27,3 13,65 9,5 2,5 0,70 0,50 0,30 3,0 d + 14,0 8,40 25116 ≥ 1000

25117 ≥ 1000 d + 38,0 19,00 13,8 3,0 1,00 0,70 0,60 3,5 d + 18,0 12,00

SharpSeal Type 2511-SharpSeal is a very efficient SINGLE ACTING rod seal. The design of the seal concen-trate the sealing forces at the sealing edge. This ensures an excellent leakage controlover the whole pressure range. The sealing edge virtually scrapes the rod dry. Where acompletely dry rod is required, SharpSeal can be installed in tandem. No ventilationbetween the seals is required. SharpSeal is recommended for pressures up to 40 MPa.SharpSeal is also available in a light series.

Ordering Example

Single acting rod seal

Rod diameter: 15,0 mm


Rod material: Chromed steel

Part no 25111-0150-13

SharpSeal Type

Series

Rod dia. x 10

Compound no



Rod SealsSharpSeal®

Pressure

Ra ≤ 1,6 µm

Ra ≤ 0,2 µm

Blend radiusG






BronzeSoft metals





Working Range

PressureSharpSeal type 2511- up to 40 MPa.For pressures exceeding 40 MPa, please contact your O.L. Seals distributor.


VelocityReciprocating up to 15 m/sec. Frequency: up to 5 Hz.Should not be used for rotating or oscillating applications.





SharpSeal Type 2511-For SINGLE ACTING applications where the fluid is a liquid. Can be installed in tandemwhere an absolutely dry rod is required.


O-Ring SizeO-Ring cross section according to instal-lation chart.O-Ring I.D. as close to groove dia. B aspossible.O-Ring I.D. not bigger than B +3%.O-Ring I.D. not smaller than B -5%.


Rod SealsSharpSeal®


O-cap LGrooveWidth

Type no + 0,20

Type no + 0,20

Type no + 0,20

h 9 H 10 max. max. min.

O-cap L1

GrooveWidth

L2

GrooveWidth

dRod

diam.

DGroovediam.

SGroovedepth

RRadius

GRadial

gap

CChamfer

O-RingCrosssec.

O-RingStandard

O-Cap

25410 2,4 25430 3,8 25450 5,3 4- 9,9 d + 2,9 1,45 0,4 0,08 0,7 1,7825411 3,6 25431 4,6 25451 6,2 10- 19,9 d + 4,5 2,25 0,5 0,10 1,0 2,62 A.S25412 4,8 25432 5,7 25452 7,7 20- 39,9 d + 6,2 3,10 0,6 0,12 1,3 3,53 B.S25413 7,1 25433 8,5 25453 10,8 40- 119,9 d + 9,4 4,70 0,7 0,15 2,0 5,3325414 9,5 25434 11,2 25454 14,7 120- 400,9 d + 12,2 6,10 0,8 0,15 2,5 7,00

25510 3,2 25530 4,6 25550 6,0 4- 19,9 d + 4,0 2,0 0,5 0,08 1,0 2,425511 4,0 25531 5,4 25551 6,8 20- 45,9 d + 5,0 2,5 1,0 0,10 1,3 3,025512 7,5 25532 9,3 25552 11,1 46-145,9 d + 10,0 5,0 1,0 0,12 2,1 5,7 S.M.S25513 11,0 25533 13,2 25553 15,4 146-250,9 d + 15,0 7,5 1,0 0,15 3,0 8,4

Fluid Mating surface O-Cap compound



Water SteelWater hydraulic Chromeplated steelSteam Cast iron Kefloy 25Non lubricating fluids Aluminium Ultralen 90Air, dry or lubricated Stainless steel

BronzeSoft metals

Rod SealsO-Cap®

O-Cap®

O-Cap is a double acting seal using the same groove dimensions as an O-Ring. Itconsists of a Kefloy® ring which is the dynamic part of the seal, and an O-Ring. The O-Cap is designed to eliminate the frictional and wear problems, which may occur withrubber O-Rings.There is a range of O-Caps for British and American Standard O-Rings and a range forSwedish standard O-Rings. In each range there are series of O-Caps which fit into O-Ring grooves meant for O-Rings without back-up ring, with one back-up ring andwith two back-up rings.

Working ParametersPressureUp to 40 MPa.

Temperature-50°C to +180°C, though limited by O-Ring.


FluidsVirtually all fluids, though limited by O-Ring. For working parameters outside thestated, please contact your O.L. Sealsdistributor.

O-Ring SizeO-Ring cross section according to installa-tion chart.O-Ring I.D. as close to rod dia. d +1 aspossible.O-Ring I.D. not bigger than (d +1 mm) +3%O-Ring I.D. not smaller than (d +1 mm) -5%

Ordering ExampleO-Cap type 2555-.Groove for O-Ring + 2 Back-Up Rings

Part no 25553-1555-32

Seal Type

Series

Rod dia. 155,5 x 10

Compound no

O-Ring size 154,1 x 8,4O-Ring to be ordered separately.

InstallationSee piston seal installation recommenda-tions on page 22.

Materials

Ra ≤ 1,6 µm Ra ≤ 0,2 µm

Blend radius


Back-Up RingsBakRing®

Ordering ExampleUncut BakRingInternal diameter: 55,0 mmGroove depth: 2,5 mm

Part no U-0550-0600-14-60

BakRing type

Internal housing dia. x 10

External housing dia. x 10

BakRing width x 10

Compound no

BakRing®

• Prevents extrusion of O-Ring• Increases service life of O-Ring.• Three standard types.

BakRing installation dimensions

MaterialsBakRings are normally made in the very extrusion resistant Kefloy 60, which is a blue,glass filled modified PTFE.Where the BakRing is in direct contact with food or drugs, virgin PTFE – Kefloy 11 – isrecommended.A range of other materials are available on request.

Type S spiral Type U Uncut Type C Cut

Dynamic:Ra ≤ 0,2 µmStatic:Ra ≤ 0,8 µm

Ra ≤ 1,6 µm

Dynamic:Ra ≤ 0,2 µmStatic:Ra ≤ 0,8 µm

Ra ≤ 1,6 µm

Ra ≤ 1,6 µmDynamic: Static:Ra ≤ 0,2 µm Ra ≤ 0,8 µm

Ra ≤ 1,6 µm

Dynamic: Static:Ra ≤ 0,2 µm Ra ≤ 0,8 µm

Blend radius

Blend radius

Blend radius

Blend radius

+ 0,2- 0

+ 0,2- 0

h 9 H 9 Min.Max.Max.

dInternaldiam.

DExternal

diam.

SGroovedepth

L1

GrooveWidth

L2

GrooveWidth

RRadius

CChamfer

GRadial

gap

WBak Ringthickness

TBak Ring

width

do

O-RingCross sec.B.S.A.S.

do

O-RingCross sec.SMS

1,6 D - 2,6 d + 2,6 1,30 3,0 4,0 0,2 0,05 0,5 1,30 1,0

1,78 D - 2,9 d + 2,9 1,45 3,8 5,3 0,3 0,06 0,6 1,45 1,4

2,4 D - 4,0 d + 4,0 2,00 4,6 6,0 0,3 0,06 0,6 2,00 1,4

2,62 D - 4,5 d + 4,5 2,25 4,6 6,2 0,3 0,07 1,0 2,25 1,4

3,0 D - 5,0 d + 5,0 2,50 5,4 6,8 0,3 0,07 1,0 2,50 1,4

3,53 D - 6,2 d + 6,2 3,10 5,7 7,7 0,5 0,08 1,3 3,10 1,4

5,33 D - 9,4 d + 9,4 4,70 8,5 10,8 0,5 0,10 2,0 4,70 1,7

5,7 D - 10,0 d + 10,0 5,00 9,3 11,1 0,5 0,10 2,0 5,00 1,7

7,0 D - 12,2 d + 12,2 6,10 11,2 14,7 0,6 0,13 2,5 6,10 2,5

8,4 D - 15,0 d + 15,0 7,50 13,2 15,4 0,6 0,13 3,0 7,50 2,5


Turn-Ring D d S L R G C B O-RingBore Groove Groove Groove Radius Radial Chamfer O-Ring I.D. Crossdia. dia. depth width gap section

Type no H 9 h 9 +0,2 max. 10MPa 20MPa min.0

25720 8- 39,9 D - 4,9 2,45 2,2 0,4 0,15 0,10 0,7 d 1,7825721 40- 79,9 D - 7,5 3,75 3,2 0,6 0,20 0,15 1,0 d 2,6225722 80-132,9 D - 11,0 5,50 4,2 0,8 0,25 0,20 1,3 d 3,5325723 133-329,9 D - 15,5 7,75 6,3 1,3 0,30 0,25 2,0 d 5,3325724 330-669,9 D - 21,0 10,50 8,1 1,5 0,30 0,25 2,5 d 7,0025725 670-999,9 D - 28,0 14,00 9,5 2,5 0,45 0,30 3,0 d 8,40

Rotating SealsTurnRing®

TurnRing installationOrdering ExampleBore diameter: 65,0 mmMedium: Hydraulic oilSealing surface: Steel

Part no 25721-0650-66N

TurnRing Type

Series

Bore dia. x 10

Compound no

Suffix for Notch

O-Ring size 56,82 x 2,62.O-Ring to be ordered separately.

Outside Sealing

TurnRing® Type 2571- and 2572-Are double acting seals for rotating applications. It consists of a seal-ring of Kefloyenergized by a rubber O-Ring. The seal configuration ensures an efficient leakagecontrol over the whole pressure range from zero to 40 MPa. The very low friction andthe non stick-slip properties of the Kefloy compounds ensure a smooth operation.The small installation dimensions allow a compact design of the hardware. This is amajor advantage in e.g. swivel joints with many ports.

Working parameters

Pressure:From zero to 40 MPa.

Temperature:-40°C to +180°C (dependent on O-Ring material).

Velocity:Continuous up to 1 m/sec. Intermittent up to 5 m/sec.

Fluids:Kefloy is compatible with virtually all fluids – liquids as well as gases. By selecting theright material for the O-Ring energizer, it is possible to cover almost all fluids.

Service life:The service life of TurnRing is affected by a great number of factors. The most impor-tant factors are pressure, velocity, surface finish, fluid, and the possibility for the seal toget rid of the generated heat. Only tests with the actual working parameters will deter-mine the exact service life.

G

Ra ≤ 0,2 µm

Ra ≤ 1,6 µm


Fluid Mating surface TurnRing compound



Water SteelWater hydraulic Chromeplated steelSteam Cast iron Kefloy 22Non lubricating fluids Aluminium Ultralen 90Air, dry or lubricated Stainless steel

BronzeSoft metals





Turn-Ring d D S L R G C B O-RingRod Groove Groove Groove Radius Radial Chamfer O-Ring I.D. Crossdia. dia. depth width gap section

Type no h 9 H 9 +0,2 max. 10MPa 20MPa min.0

25710 6- 18,9 d + 4,9 2,45 2,2 0,4 0,15 0,10 0,7 d + 2,0 1,7825711 19- 37,9 d + 7,5 3,75 3,2 0,6 0,20 0,15 1,0 d + 3,4 2,6225712 38-199,9 d + 11,0 5,50 4,2 0,8 0,25 0,20 1,3 d + 5,1 3,5325713 200-255,9 d + 15,5 7,75 6,3 1,3 0,30 0,25 2,0 d + 6,9 5,3325714 256-649,9 d + 21,0 10,50 8,1 1,5 0,30 0,25 2,5 d + 9,5 7,0025715 650-999,9 d + 28,0 14,00 9,5 2,5 0,45 0,30 3,0 d +14,0 8,40

Rotating SealsTurnRing®

Material Selection Guide

Features• Excellent wear resistance• Extrusion resistant• Low friction• No stick-slip• Small installation dimensions• Excellent chemical resistance• No vulcanisation

Advantages• Long service life• High pressure and temperature stability• Low operating torque• Smooth operation• Compact design• Compatible with most fluids• No damage after standstill


O-Ring manufacturer’s recommendation forthe actual fluid should always be followed.

TurnRing installationOrdering ExampleShaft diameter: 125,3 mmMedium: WaterSealing surface: Steel

Part no 25712-1253-66-N

TurnRing Type

Series

Shaft dia. x 10

Compound no

Suffix for Notch

O-Ring size 129,77 x 3,53.O-Ring to be ordered separately.

Inside Sealing

G

Ra ≤ 1,6 µm

Blend radius

Ra ≤ 0,2 µm

ød øD


Fluid Mating surface GuideRing material



Water SteelSteam Chromeplated steelNon lubricating fluids Cast iron Kefloy 22Air, dry or lubricated Aluminium Ultralen 90

Stainless steelBronzeSoft metals

Wear RingsGuideStrip®

GuideStrip®

The use of GuideStrip ensures an accurate and smooth travel of sliding parts. It pre-vents metal-to-metal contact and scoring of the surfaces. The precise guiding and thepreservation of perfect surfaces are essential for trouble-free functioning of the seals.GuideStrip also protects the seals against diesel-effect and, to some degree, preventseventual contamination reaching the seals.

• Precise guiding• Wear resistant• High load capacity• No stick-slip• Damping of mechanical vibrations• Prevent migration of dirt• Easy to install• Prevent galling of surfaces

AvailabilityGuideStrips are delivered either in fixedlength or in strip form in rolls. Specialthicknesses and widths are delivered onrequest.

Materials Selection Guide

Angle cut But cut Z-cutType A Type B Type Z

Load capacity:Depends on working temperature.Dimensioning of GuideStrip is describedon page 20.

Temperature range:-40°C to +180°C.

Velocity:Reciprocating up to 15 m/sec.Frequency: Up to 10 HzRotating: Up to 1 m/sec.

Fluids:GuideStrip is compatible with virtually allfluids – lubricating as well as non lubrica-ting.

Working Range



GuideStrip for pistonOrdering ExamplePiston diameter: 150,0 mmGuideStrip width: 19,5 mmGuideStrip thickness: 2,5 mmMedium: OilMating surface: Steel

Part no P-25-195-1500A-13

Piston Type

GuideStrip thickness x 10

GuideStrip width x 10

Bore diameter x 10

Cut type

Compound no

GuideStrip length:L = 3,115 (150,0 - 2,5) - 1,0 = 458,5 mm.

Installation Dimensions

GuideStrip for rodOrdering ExampleRod diameter: 50,8 mmGuideStrip width: 9,5 mmGuideStrip thickness: 2,0 mmMedium: WaterRod material: Cromed steel

Part no R-20-095-0508Z-22

Rod Type

GuideStrip thickness x 10

GuideStrip width x 10

Rod diameter x 10

Cut type

Compound no

GuideStrip length:L = 3,115 (50,8 + 2,0) - 1,0 = 163,5 mm.

Other dimensions at request.

GuideStrip W T S L R G D dGuideStrip GuideStrip Groove Groove Radius Radial Extern. Intern.thickness width depth width gap dia. dia.

Type no +0,2 max H8 h80

15-030 1,5 3,0 1,5 3,2 0,3 d +3,0 D -3,0

20-040 4,0 4,2

20-054 5,4 5,6

20-061 6,1 6,3

20-079 7,9 8,1

20-095 9,5 9,7

20-148 2,0 14,8 2,0 15,0 0,3 d +4,0 D -4,0

20-195 19,5 20,0

20-245 24,5 25,0

20-295 29,5 30,0

20-495 49,5 50,0

25-040 4,0 4,2

25-054 5,4 5,6

25-061 6,1 6,3

25-079 7,9 8,1

25-095 9,5 9,7

25-148 2,5 14,8 2,5 15,0 0,3 d +5,0 D -5,0

25-195 19,5 20,0

25-245 24,5 25,0

25-295 29,5 30,0

25-495 49,5 50,0

See

cle

aran

ce fo

r th

e ac

tual

sea

l



Dimensioning of GuideStripWhen calculating the force a GuideStrip can carry, use formula:

F = d x T x Ps

F: Force carrying capacity of one GuideStripd: Internal diameter of GuideStripT: Width of GuideStripPs: Specific load capacity of GuideStrip material at the actual working temperature. Is

found from Load-Temperature diagram➀.

Example: Guidetrip R-25-148-0800A-13Working temperature 80°C

d = 80 mmT = 14,8 mmPs = 10 N/mm2

F 80 mm x 14,8 mm x 10 N/mm2 = 11.840 N

DeformationDeformation under load is found from Load-Deformation diagram➁.

FrictionCoefficient of friction is influenced by a great number of factors such as surface finish,fluid, load and velocity.As a rule the following coefficients of friction can be used:

Lubricated applications: µ = 0,08Unlubricated applications: µ = 0,12

Calculation of lengthTo allow for thermal expansion GuideStrip is made slightly shorter than the circumfe-rence of the part they guide. This leaves a smal gap X.

Internal applications (for rod)L = 3,115 (ød + W) – 1,0ød = Rod diameter W = GuideStrip thickness

External applications (for bore)L = 3,115 (øD - W) – 1,0øD = Bore diameter W = GuideStrip thickness

Cut TypesGuideStrip can be furnished with three different types of cut – A, B or Z.

A: Angle cut 30° – For reciprocating applicationsB: But cut 90° – For rotating applications.Z: Step cut – For special applications.

GuideStrip ThicknessFor ease of installation thin sections of GuideStrip should be used for small diameters.For diameters below 25 mm, GuideStrip thickness of 1,5 mm is recommended.For diameters below 40 mm, GuideStrip thickness of 2,0 mm is recommended.

Ordering examplewhen ordering in metersGuideStrip thickness: 2,5 mmGuideStrip width: 9,5 mmRequired length: 75 mRequired compound: Kefloy 22ORDER: 75 m 25-095-22

➀

➁


Compound Composition

Kefloy 11 Virgin PTFE

Colour: White

Kefloy 13 Modified PTFEBronze

Colour: Light green

Kefloy 18 Modified PTFEBronze

Colour: Light green

Kefloy 22 Modified PTFECarbonGraphite

Colour: Black

Kefloy 25 Modified PTFECarbon

Colour: Black

Kefloy 28 Modified PTFECarbon fibreGraphite

Colour: Dark Grey

Kefloy 32 Modified PTFE

Colour: Turquoise

Kefloy 40 Modified PTFEEkonol

Colour: Beige

Kefloy 60 Modified PTFEGlass fibre

Colour: Light blue

Kefloy 66 Modified PTFEGlass fibreMoS2

Colour: Grey

Ultralen Ultra highmolecular weightpolyethylene

Colour: White

Properties

Very good chemical resistanceVery low frictionLimited wear resistanceGood dielectric properties

Very good wear resistanceVery good extrusion resistanceGood compressive strength

Very good wear resistanceHigh compressive strengthMedium coefficient of friction

Good chemical resistanceGood dry run propertiesRuns well against mild surfaces

Good chemical resistanceGood dry run propertiesRuns well against mild surfacesSofter and more flexible thanKefloy 22

Very good wear resistanceVery good extrusion resistanceMedium coefficient of friction

Very good chemical resistanceVery low frictionNo stick-slip

Very good wear resistanceVery good extrusion resistanceVery low coefficient of frictionVery gentle to mating surface

Very good extrusion resistanceHigh compressive strength

Good chemical resistanceGood wear resistance

Very good abrasion resistanceGood chemical resistanceVery good properties at lowtemperaturesSensitive to higher temperatures

Operating Range

Velocities up to 5 m/sec.Pressures: static up to 30 MPaPressures: dynamic up to 20 MPaTemperatures: static -100 to +250°CTemperatures: dynamic -40 to +225°C











Applications

Light dutyChemical industryFood and drug (FDA)BakRings

Heavy duty. Standardcompound for hydraulicsystems.Not for direct contact withfood and drugSlipRings

Very heavy dutyHydraulic systemsNot for direct contact withfood and drugSlipRings

Heavy dutyUnlubricated systemsWater hydraulic Pneumatic systemsSlipRingsWypeRingsGuideStrips

Medium dutyUnlubricated systemsWater hydraulic Pneumatic systemsO-Caps

Very heavy duty oil and water hydraulic systemsNot for direct contact withfood and drugSlipRingsTurnRingsGuideStrips

Medium dutyHydraulic systemsSlipRingsO-CapsWypeRings

Heavy duty oil and waterhydraulicSlipRingsSharp SealsO-CapsWypeRingsGuideStrips

Heavy dutyBakRings

Medium dutyHydraulic systemsPneumatic systemsSlipRingsWypeRingsGuideStrips

Heavy dutyDry pneumatic systemsLubricated pneumatic systemsWater hydraulic Chemical industriesFood and drug (FDA)SlipRingsWypeRings

Materials

22

Installation Hints


Size Internal Crossno diameter sec.004 1,78005 2,57006 290007 3,68008 4,47 1,78009 5,28010 6,07011 7,65012 9,25013 10,82110 9,19111 10,77112 12,37113 13,94114 15,54115 17,12116 18,72117 20,29118 21,89119 23,47120 25,07121 26,64122 28,24 2,62123 29,82124 31,42125 32,99126 34,59127 36,17128 37,77129 39,34130 40,94131 42,52132 44,12133 45,69134 47,29135 48,90

Size Internal Crossno diameter sec.136 50,47137 52,07138 53,64139 55,25140 56,82141 58,42142 59,99 2,62143 61,60144 63,17145 64,77146 66,34147 67,95148 69,52149 71,12150 72,69210 18,64211 20,22212 21,82213 23,40214 25,00215 26,58216 28,17217 29,75218 31,35219 32,92220 34,52 3,53221 36,09222 37,70223 40,87224 44,04225 47,22226 50,39227 53,57228 56,74229 59,92230 63,09231 66,27

Size Internal Crossno diameter sec.232 69,44233 72,62234 75,79235 78,97236 82,14237 85,32238 88,49239 91,67240 94,84241 98,02242 101,19243 104,37244 107,54 3,53245 110,72246 113,89247 117,07248 120,24249 123,42250 126,59251 129,77252 132,94253 136,12254 139,29255 142,47256 145,64324 34,29325 37,47326 40,64327 43,82328 46,99329 50,17330 53,34331 56,52 5,33332 59,69333 62,87334 66,04335 69,22

Size Internal Crossno diameter sec.336 72,39337 75,57338 78,74339 81,92340 85,09341 88,27342 91,44343 94,62344 97,79345 100,97346 104,14347 107,32348 110,49349 113,67350 116,84351 120,02 5,33352 123,19353 126,37354 129,54355 132,72356 135,89357 139,07358 142,24359 145,42360 148,49361 151,77362 158,12363 164,47364 170,82365 177,17366 183,52367 189,87368 196,22369 202,57370 208,92371 215,27

Size Internal Crossno diameter sec.372 221,62373 227,97374 234,32375 240,67376 247,02377 253,37378 266,07 5,33379 278,77380 291,47381 304,17382 329,57383 354,97384 380,37385 405,26427 120,02428 123,19429 126,37430 129,54431 132,72432 135,89433 139,07434 142,24435 145,42436 148,59437 151,77 7,00438 158,12439 164,47440 170,82441 177,17442 183,52443 189,87444 196,22445 202,57446 215,27447 227,97448 240,67

Size Internal Crossno diameter sec.449 253,37450 266,07451 278,77452 291,47453 304,17454 316,87455 329,57456 342,27457 354,97458 367,67459 380,37460 393,07461 405,26 7,00462 417,96463 430,66464 443,36465 456,06466 468,76467 481,46468 494,16469 506,86470 532,26471 557,66472 582,68473 608,08474 633,48475 658,88

A.S. and B.S. O-Ring dimensional list

ImportantFor all installation of seals it is important not to scratch the sealing surfaces.1. Avoid sharp edges on seal housings.2. Use tools that are smooth and free of burrs.3. Keep everything clean.

Installation of External Seals on PistonsFor installation of bigger series of seals, it is convenient to make a set of assemblytools. It consists of a tapered mandrel and a pusher made of acetal or similar plastic.Seals are pushed over the mandrel into the groove by a quick push.For installation of a few seals, two pieces of strapping used as shown at fig. 2 and 3are sufficient. Where the piston has to be installed in a bore without an inlet chamfer, acalibrating tool will facilitate the installation. See fig. 4.

Installation of Internal Seals in GlandsInstallation of small diameter internal seals requires open grooves.For bigger diameter seals it is possible to assemble by collapsing the seal as shown onfig. 5 and 6. After installation of the seal it should be calibrated by a well chamferedand smooth rod of acetal or similar plastic.

depth to suit

Length equal to overalllength of mandrel

Flat 10-15°

➀

➁

➃➄➅

➂

23

Specials


Besides the standard series of seals and wear rings O.L. Seals also manufacture special seals and custom designed items. Theadvanced manufacturing technique on CNC machinery makes it possible to produce special seals in a rational manner.

In the great range of Kefloy® and Ultralen® compounds with their variety of remarkable properties it is always possible to find a mate-rial which suits the application.

Our technical experts, with many years of experience in solving sealing problems, offer their assistance in designing of seals and inselection of the right Kefloy or Ultralen compound.

O.L. Seals A/S · Bymosevej 14 · DK-3200 Helsinge · Denmark · Phone +45 48 79 65 00 · Fax +45 48 79 65 01Web: www.olseals.dk · Mail: [email protected]

O.L. Sealing Systems - VS-TRADING · 2019-05-24 · O-Ring energizer material SlipRings can be used...

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Transcript of O.L. Sealing Systems - VS-TRADING · 2019-05-24 · O-Ring energizer material SlipRings can be used...