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隔膜压力表P761 P762 P763系列

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产品描述

P761 (Pressure gauge with inline type diaphragm seal) P762 (Pressure gauge with extension type diaphragm seal) P763 (Pressure gauge with pad type diaphragm seal)

Service intended

Pressure gauge with diaphragm seal are suitable for the situation where the process medium would corrode the instrument connection and pressure sensing element. Furthermore, this type of gauge is suitable for corrosive, highly viscous, crystallising or hot pressure media. Additionally, it is recommended to be used where the process medium might freeze or solidify the instrument connection and pressure sending element due to the ambient or process temperature change and where the process medium requires the flusing from the system to prevent any contamination.

Design	Internal diaphragm
Accuracy	Refer to gauge model
Suitable pressure range (MPa, kPa, bar)	-0.1 ~ 0 to -0.1 ~ 2.5 MPa 0 ~ 0.1 to 0 ~ 35 MPa
Filling liquid	Silicone oil
Working temperature	Temperature rating of the diaphragm seals depends on the fill fluid, the diaphragm material and the lower housing material. Standard fill fluids are available for temperature range -20 ~ 200 ˚C
Diaphragm material	Diaphragms are available in many corrosion resistant materials. Compatibility of selected material and process fluid is the responsibility of user
Temperature effect	Accuracy at temperature above and below the reference temperature (20 ˚C) will be effected by approximately ±0.5 % per 10 ˚C of full scale

Standard features

Upper flange (Gauge side)	Stainless steel (304SS, 316SS)
Diaphragm	316L SS, Monel, Hastelloy-C Titanium, Tantalum, Nickel, Alloy20
Under flange and process flange	Stainless steel (304SS, 304L SS, 316SS, 316L SS) Monel, Hastelloy-C, Titanium, Nickel
Option	Diaphragm and under flange are available in PTFE coating Under flange (Process side) are available in purging plug or heating/cooling jacket
Dial	White aluminium with black graduations
Pointer	Black painted aluminium alloy