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BULLETIN PR-1259

Solid front safety case

Accuracy complies with ASME B40.1

Grade 2A (0.5% of span) As-welded Bourdon tube for safety and

longer life

Micrometer adjustable pointer.

Adjustable movement

Ranges: vac to 20,000 psi

Date coded socket to ensure pedigree

Wetted part material printed on dial

Liquid filled case option (Code L)

The Type 1259 process gauge is offered

with an as-welded Bourdon tube to ensure

safety and a longer life than competitive

gauges. Meeting ASME B40.1, the Type

1259 process gauge has been engineered

to meet marketplace requirements.

Note: Other than discoloration of the dial and hardening of thegasketing that may occur as ambient or process temperaturesexceeds 150F, non-liquid-filled gauges with standard glass win-dows, can withstand continuous operating temperatures up to250F (121C). Liquid-filled gauges can withstand 200F (93C)but glycerin fill and acrylic window will tend to yellow. Accuracyat temperatures above or below the reference ambient tempera-ture of 68F (20C) will be affected by approximately .4% per25F (4C). Gauges with welded joints will withstand 750F(450F (232C) with silver brazed joints) for short times withoutrupture, although other parts of the gauge will be destroyed andcalibration will be lost. For continuous use and for process orambient temperatures above 250F (121C), a diaphragm sealor capillary or siphon is recommended.

PRODUCT SPECIFICATIONS

Model Number: 1259Accuracy: 12% full scale (Grade 2A,

ASME B40.100)Ranges: Vacuum 20,000 psiRing Type: Cam lock, fiberglass

reinforced thermoplasticDial Size: 412 diameterCase: Solid front safetyCase Material: Fiberglass reinforced

thermoplasticWeatherProtection: Dry Case: IP54

Liquid filled or hermeticallysealed case: IP 65

Type 1259 Process Pressure Gauge

Ashcro ft Inc ., 250 East Main Street, S tratfor d, CT 06614 USATel: 203-378-8281 Fax: 203-385-0408

email: info@ashcroft.com www.ashcroft.com

All specifications are subject to change withou t noti ce.All sa les s ubject to st andard terms and conditio ns.

Ashcroft Inc. 2009 09/12

TEMPERATURE LIMITS

Ambient Process Storage

Dry20/200F 20/250F 40/250F(29/93C) (29/121C) (40/121C)

LF 20/150F 20/200F 0/150F(glycerin) (7/66C) (7/93C) (18/66C)

Window: GlassDial: Aluminum, white background,

black pressure scale.

Pointer: Micrometer adjustableMovement: Adjustable 300 series ssBourdon Tube: 316L SS/316L SS(S)

K Monel/Monel (P)Conn. Size: 14, 12 NPTConn. Location: Lower

PRODUCT OPTIONS

Fill: GlycerinHermetic Seal: XLJFlush MountingRing: X56, X57Shatter ProofGlass Window: XSGWindow Acrylic: XPD

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3.98

Dia. 5.37

BOLT CIRCLE

Dia. 5.81

3X Dia.

.24

.62

ACROSS FLATS

1/2 OR 1/4

NPT 1.53

2.63

3.36

Dia. 5.19

Type 1259 Process Pressure Gauge

Ashcro ft Inc ., 250 East Main Street, S tratfor d, CT 06614 USATel: 203-378-8281 Fax: 203-385-0408

email: info@ashcroft.com www.ashcroft.com

All specifi cations are subjec t to change without notice.All sa les subjec t to standard ter ms and conditions.

Ashcroft Inc. 2009 09/12

Dimension

NOTES:

(1) Other connections available on application.

(2) See Ashcroft product information page ASH/PI60A for compliance to NACE.

Bourdon System Selection

Ordering Bourdon Tube & Tip Material Socket Tube Range Selection NPTCode (all joints TIG welded except A) Material Type Limits (psi) Conn.(1)

S 316L stainless steel 316 stainless steelC-Tube 12/1500 14, 12

Helical 2000/20,000 14, 12

P(2) K Monel Monel 400C-Tube 15/1500 14, 12

Helical 2000/30,000 14, 12

HOW TO ORDER: 45 1259 SD 04L XXX 1000#

Dial Size: 412

Case Type Number: 1259

Bourdon tube and socket

Connection: 14 NPT (02), 12 NPT (04), Lower (L)

Optional Features:

Standard Pressure Range

BULLETIN PR-1259

PSI RANGES METRIC RANGES

METRIC RANGES

Pressure psi

Range0/150/300/600/1000/1600/2000/3000/4000/6000/8000/10000/15000/20000/30000/40000/6000

0/10,0000/20,000Vacuum30/0 in.Hg34/0 ftH20Compound30Hg/15 psi30Hg/30 psi30Hg/60 psi30Hg/100 psi30Hg/150 psi30Hg/300 psi

Pressure kg/cm2 and bar

(Outer Scale)Range psi0/1 0/140/1.6 0/220/2.5 0/350/4 0/550/6 0/850/10 0/1400/16 0/2200/25 0/3500/40 0/5500/60 0/8500/100 14000/160 22000/250 35000/400 55000/600 8500

0/1000 14,0000/1600 22,000Vacuum Outer Scale1/0 30Hg

Compound1/0/1.5 30 Hg/201/0/3 30Hg/401/0/5 30Hg/701/0/9 30Hg/1251/0/15 30Hg/2151/0/24 30Hg/340

Pressure kPa(Outer Scale)

Range psi

0/100 0/140/160 0/220/250 0/350/400 0/550/600 0/850/1000 0/1400/1600 0/2200/2500 0/3500/4000 0/5500/6000 0/8500/10,000 14000/16,000 22000/25,000 35000/40,000 55000/60,000 85000/100,000 14,0000/160,00 22,000

Vacuum Outer Scale100/0 30Hg

Compound100/0/150 30Hg/20100/0/300 30Hg/40100/0/500 30Hg/70100/0/900 30Hg/125100/0/1500 30Hg/215100/0/2400 30Hg/340

Pressure mPa(Outer Scale)

Range psi

0/0.1 0/140/0.16 0/220/0.25 0/350/0.4 0/550/0.6 0/850/1 0/1400/1.6 0/2200/2.5 0/3500/4 0/5500/6 0/850

Vacuum Outer Scale0.1/0 30Hg

Compound0.1/0/0.15 30Hg/200.1/0/0.3 30 Hg/400.1/0/0.5 30 Hg/700.1/0/0.9 30 Hg/125

0.1/0/1.5 30 Hg/2150.1/0/2.4 30 Hg/340