Pressure gauge with diaphragm seal

Type:

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

 

 

Download:  CATALOG 

Đồng hồ áp suất màng P761 P762 P763