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Model 711.12, 731.12 Differential Pressure Gauge
Brand: WIKA Alexander Wiegand SE & Co. KGType 711.12, Copper Alloy Wetted Parts, Type 731.12, Stainless Steel Wetted Parts
Features- Ranges from 10 psi (0.6 bar)
- Differential pressure indication with moving disc
- Economical and reliable design
Specifications
Sizes
- 4” & 6” (100 mm & 160 mm)
Accuracy
- + 1.5 % of Span
Ranges (All Ranges Not Stocked)
- Scale Range must be selected based on the highest Static Pressure measured. The Pressure differential to be indicated should be no less than 1/6 of the full scale Range. when ordering please State both the Static Pressure applied and the differential to be indicated.
- Pressure from 10 psi to 15,000 psi
- Vacuum 30”Hg
Working Range
- Short Time: 1.3 x Full Scale Value
- Fluctuating: 0.9 x of Full Scale Value
- Steady: Full Scale Value
Operating Temperature
- Maximum 212° F (+100° C) - 1500 psi thru 15,000 psi
- Media: Max. 140° F (+60° C) - 10 pai thru 1000 psi
- Ambient: -4° F to 140° F (-20° C to 60° C)
Temperature Error
- Additional error when temperature changes from reference temperature of 68° F (20° C) +0.4 % for every 18° F (10° C) rising or falling. Percentage of Span.
Weather Protection
- Weather resistant (NEMA 2 / IP33)
Connection
- Each side Marked with + or -
- Lower Mount (LM) only 2 x 1/4” or 1/2” NPT
- Material: Copper Alloy
Bourdon Tube
- Material: 316 Stainless Steel
- 1,500 psi to 15,000 psi helical typ
- Material: Copper Alloy
- 10 psi to 1,000 psi C-Type
Movement
- Copper Alloy, wearable Parts Argentan
Dial
- White Aluminum with Black Lettering
Pointer
- 1 graduated disk indicator with scale ± 50 % of main scale Range
- 1 Black Pointer
- Material: Aluminum
Case
- Black Painted Steel
Window
- Flat Glass
Cover Ring
- Black Painted Steel Screw Retained
- Measurement of pressure differential or duplex measurement of 2 applied pressures (duplex measurement)
- Heating, ventilation and air conditioning (HVAC)
- For non corrosive, non crystallizing gaseous and liquid media
- Type 731.12 suitable for aggressive media (SS compatible)
