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Display Gauges

Diaphragm pressure gauge with dry type_P770 series (P771, P772)

P770 series (P771, P772)

Service intended

P770 series are equipped with the specially designed dry type diaphragm. This special diaphragm offers a unique capability to use with all types of liquids, high-viscosity fluids, solids, and even corrosive chemicals. P770 is a perfect solution for a wide range of process industry such as Petro-chemical, environmental technology, offshore, mechanical engineering, power stations, and plant construction.

Nominal diameter 100 and 160 mm
Accuracy ±1.6% of full scale
Scale range 0 ~ 1 kPa to 0 ~ 40 kPa (Flange 150 mm)
0 ~ 50 kPa to 0 ~ 2.5 MPa (Flange 100 mm)
Working pressure Steady : Full scale value
Fluctuating : 90 % of full scale value
Over range protection Overpressure safety 130 % of full scale value
Overpressure safety 500 % of full scale value, Max. 5 MPa (Option)
Opton : Overpressure safety 500 % of full scale value, Max. 5 MPa
Working temperature Ambient : -20 ~ 65 °C
Fluid : Max. 100 °C
Temperature effect Accuracy at temperature above and below the reference temperature (20 ℃) will be effected by approximately
±0.8 % per 10 ℃ of full scale

Standard features

Upper flange (Gauge side) Material : Stainless steel (304SS, 316SS)
Diaphragm material ≤ 40 kPa : Stainless steel (316Ti SS)
> 40 kPa : Duratherm 600
Pressure connection and under flange Material : Stainless steel
(316SS, 316L SS, 304SS, 304L SS) and others
Lower screw and flange mount
Case Stainless steel (304SS)
Cover Stainless steel (304SS) Bayonet type
Window Safety glass
Movement Stainless steel
Dial White aluminium with black graduations
Pointer Black painted aluminium alloy
Option External zero adjustable
Certificates ATEX Ex II GD c IIC TX

© WISE Control Inc. All rights reserved. ALL PRODUCT, PRODUCT SPECIFICATIONS AND DATA ARE SUBJECT TO CHANGE WITHOUT NOTICE TO IMPROVE RELIABILITY, FUNCTION OR DESIGN OR OTHERWISE.

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