TESCOM backpressure valve 44-4700

TESCOM backpressure valve 44-4700

Absolute pressure

The inlet has four ranges from below atmospheric pressure to 150 PSIG

Back pressure

44-4700 series

technical specifications

Operating parameters

Pressure rating according to ANSI/ASME B31.3 standard

Maximum inlet pressure 28 in. Hg vacuum -15 PSIG,

0-50, 0-100, and 0-150 PSIG

Design test pressure 150% of maximum rated pressure

Leakage No gas leakage inside

External ≤ 2 x 10-8 atmospheres · milliliters/second helium gas

Environmental working temperature- 40 ° F to+165 ° F

(-40 ° C to+74 ° C)

Rated flow rate C v=0.04

Maximum working torque 25 in. – lbs. (2.8 Nm)

Materials in contact with the medium

Valve body 316 stainless steel

Valve cap Nickel plated brass

Valve seat Teflon ®

Spring, main valve and bias pressure 316 stainless steel

Partition 316 stainless steel

Other components 316 stainless steel

For other materials and modifications, please consult the factory.

Cleaning CGA 4.1 and ASTM G93

Weight (without pressure gauge) 2.75 pounds (1