ĐỒNG HỒ ĐO ÁP SUẤT DẠNG MÀNG WISE P771

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)
      Option: 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
Certificates: ATEX Ex II GD c IIC TX
Option: External zero adjustable