How to select the right heavy duty Quick Connect Coupling for your applications ?

Definition of a Quick Disconnect Coupling

• A device that can facilitate the connection and disconnection of an attachment to a power source, without the use of toools, while maintaining system integrity.

• Quick Disconnect Couplings are labor saving devices, which expedite the connection and disconnection of Hydraulic , Pneumatic and Fluid Transfer components and hoses.

Single Shutoff

Double Shutoff

Straight Through

Selection factors for Quick Connect Couplings

Quick Couplings are components of a fluid system and are thereby subject to all system forces.

Mayor considerations:

• Flow• Pressure• Air Inclusion/ Spillage• Temperature• Media• Environment

Titel presentatie04/12/20233

Flow

• System flow rate is one of the most valuable pieces of information needed and yet it often misunderstood. When design considerations are being made for coupling size and internal valving, system designers should always strive to minimize pressure drop to avoid inefficiency in the system.


Pressure

• Pressure is the single most important factor in the development of QC. Pressure influences virtually all of the components in QC and the mis-application of a product to an improper pressure application can lead to design disastrous results.

• There are 2 forms of pressure:

Static pressure:- Static pressure is caused by fluid or gas at rest , a constant pressure.

Dynamic pressure:- Dynamic pressure is caused by fluid or gas in motion, a fluctuating/

pulsating pressure.

Therefore we always ask what kind of application you’re dealing with.


Spillage

• Spillage is defined as the small amount of fluid that is lost when a coupling is disconnected, not be confused with leakage.


Air Inclusion

• Air inclusion is defined as the small amount of air infiltration into a system when a coupling is connected. Here again this test only applies to couplings that seal at the interface before the valves are open.


Temperature

• The temperature can have a dramatic impact on the design of the product. This generally takes the form of material selection of the base metal and elastomers used to make the coupling.

• The media compability chart on the next page shows the temperature range for available seal materials.


Environment• In the context of a quick coupling, environmental factors not only refer to

contamination issue but also the conditions in which the coupling is used.


Factor Features

Safety Sleeve Locks, Exhausting Couplers

Appearance Chrome Plating, Zinc Dichromate Plating, Private Labelling

Installation Bulkhead Grooves, Flanges, End Connections

Corrosion 316 Stainless Steel, Hastalloy, 303 Stainless Steel

Danger of pull away Breakaway sleeves

Danger of mixing up hoses

Color Coding, Keyed Connections

Mulitple Hose Connections

Manifolding ( Multi-plates)

Non Rotation Spacial Dimpled Locking Systems

Sleeve Operation Manual Connection, Automatic Connection

Conditions of certain death

Rotation• A small rotation of a few degrees is no problem. 360 degrees or more can

lead to a disfunctional coupling, due galling.

Vibration• High vibration can lead to dangerous situations even in low pressure

applications

Contamination• To avoid the contamination of dust,sand etcetera use dust plugs and dust

caps in disconnect condition.

Side load• The couplings always has to be straight in line with the nipple, if not

leakage can appaer.


WS Series


ST Series


V Series


W Series


HT Series


H Series


Teesing Products

• Fittings• Quick connect couplings• Valves and regulators• Tubing• Manifolds• Test and fill connectors• Pipe Connectors & Flanges• Systems and assemblies• HP & UHP• Submicron filters• Sub ppb purifiers• UHP pressure measurement• Engineered products• Cleanroom assemblies• Instrumentation

Teesing worldwide

Teesing B.V. Head Office

Teesing Industrial Systems CO. LTD

Teesing USA LLCTeesing Taiwan Office

Joint Venture Teesing & ASPRO - TNEE

Teesing Logistics

Teesing invested in 2013 in a high-tech automated system for warehouse organization and provision of material (even dust-proof) for 50.000 products.

Advantages are :

• Faster order picking

• Less error sensitive

• Increases cleanliness for UHP environments

Teesing In-house Cleanroom

• ISO Class 4 - 6 cleanroom

• Small assemblies it is possible to produce ISO Class 4

• Testing using UV and Laser technics

• Use clean dry air (XCDA)

• Bake-out capabilities

• Double packed according to customer specification

Teesing In House Engineering Department

• Consulting

• Co – Engineering through interchange Solid Edge 3d files

• Product streamlining

• Thinking and Working together

• From small UHP components up to large Industrial Assemblies

Thank you for your attention

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How to select the right heavy duty Quick Connect Coupling for your applications ?

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