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Product name General service liquid filled pressure gauge
Model P254 series

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General service liquid filled pressure gauge
Model : P254 Catalogue Download : 
Service intended
P254 series are designed to measure a high dynamic pressure load and it can be used where severe vibrations are present. It is recommended to be used with a gaseous and a liquid media that are not highly viscous and not to be used where copper alloy parts could be corroded. Its application extends to hydraulics, compressors and shipbuilding.
Nominal diameter
50, 63, 75 and 100 mm
Accuracy
± 1.5% of full scale
Scale range (MPa, kPa, bar)
-0.1 ~ 0 to 0 ~ 40 MPa
Working pressure
●Steady : 75% of full scale
●Over range protection : 130% of full scale
Working temperature
●Ambient : -20 ~ 60℃
-20 ~ 65℃ (With glycerin filling)
-40 ~ 65℃ (With silicone filling)
●Fluid : Max. 60℃
Fluid
Glycerin
Degree of protection
EN60529/IEC529/IP67
Temperature effect
Accuracy at temperature above and below the reference temperature (20℃) will be effected by approximately ±0.4% per 10℃ of full scale

Pressure connection
●Brass (50 and 63 mm)
●Nickel plated brass (75 and100 mm)
Element
●Brass
< 6MPa : C type bourdontTube
≥ 6MPa : Helical type bourdon tube
Case
Stainless steel (304SS)
Cover
Stainless steel (304SS)
Crimp ring type
Window
●Polycarbonate (50 and 63 mm)
●Safety glass (75 and100 mm)
Movement
Brass
Dial
White aluminium with black graduations
Pointer
Black painted aluminium alloy
Process connection
●50 and 63 mm : ⅛", ¼" PT, NPT and PF
●75 mm : ¼", ⅜" PT, NPT and PF
●100 mm : ¼", ⅜", ½" PT, NPT and PF
●One piece type connection (50 and 63 mm)
●Two piece type connection (75 and 100 mm)