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Diaphragm pressure gauge with dry type_P770 series

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Details

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