Dial Indicating Pressure Gauges Brass Case, Liquid Filled OPERATING SPECIFICATIONS 1. Working Pressure Limitations a. Dynamic Pressure The working pressure should be limited to 60% of the dial range. b. Static Pressure The working pressure, where no sharp uctuations occur, should be limited to 90% of the dial range. APPLICATIONS Automotive Construction Hydraulics & pneumatics Mining Stamping & forming presses Transportation High quality, heavy-duty liquid lled gauge Vacuum and compound ranges through 0 psi to 15,000 psi 2-1/2" and 4" gauge sizes Die cast brass case with natural brass nish Copper alloy or 316 stainless steel and brass wetted parts SERIES Pressure ranges Accuracy Temperature ranges* Measuring element SPECIFICATIONS Vacuum and compound ranges through 0 psi to 15,000 psi ± 1.6% full scale ± 1% full scale Media -4 °F to 140 °F (-20 °C to 60 °C) Ambient 0 °F to 160 °F (-18 °C to 71 °C) Optional temperature ratings available from -40 °F to 212 °F (-40 °C to 100 °C) Copper alloy “C” tube Copper alloy coiled safety tube 316 stainless steel coiled safety tube Copper alloy “C” tube 316 stainless steel coiled safety tube 1/4 NPT die-cast brass with the case. 7/16 – 20 SAE adjustable type straight thread with FKM O-ring is also available as a stock option on many ranges (-4 SAE). 1/4 NPT die-cast brass with the case. 1/2 NPT is available on certain 40-300 ranges as a stock option, and on all other 40-300 and 40-310’s as a non-stock option. Die cast brass (natural brass nish) with safety relief plug Polished brass Acrylic with o-ring seal Balanced aluminum, black nish Aluminum, white background with black scale. UV resistant. Fill liquid** 300 Series (all) 300 Series (all) 300 Series (all) Pointer Dial For details on accuracy/standard dial con guration and dial layouts, see pages 54-59. Case Cover ring Lens Brass and nickel-silver with highly polished bearing surfaces Glycerine * For every 18 °F (10 °C) shift in temperature from which the gauge is calibrated, the user can experience up to ±0.4% additional error.

ORDERING INFORMATION DIMENSIONS ORDERING INFORMATION GAUGE SIZES CASE TYPES PRESSURE RANGES 25 2-1/2 300 Brass, bottom connection 30vac -30 inHg to 0 psi 30/15 -30 inHg to 0 to 15 psi 40 4 310 Brass, back connection 30/300 -30 inHg to 0 to 300 psi 15 0 psi to 15 psi 30/160 -30 inHg to 0 to 160 psi SCALE OPTIONS CONNECTION SIZES OPTIONS psi psi single scale 1/4 1/4 NPT CFF Chrome Front Flange CFFN Chrome Front Flange w/o holes BFF Brass Front Flange BLFF Black Front Flange SSRF 304SS Rear Flange psi/kPa psi/kPa dual scale psi/bar psi/bar dual scale SST SAE J1926-3:7/16-20 Adjustable GLO Glass...

Dial Indicating Pressure Gauges

25-310 Chrome Triangular Bezel with U-Clamp 40-310 Chrome Triangular Bezel with U-Clamp 3.46" (88 mm)