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Description
Type 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
Specifications
Brand
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
- max. 212o F (+100o 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 / IP 33)
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
Applications
Typical Applications
- 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)