Block and Bleed Valves

Keep a calibration system pressurized with a fluid or gas while venting the pressure from the device being calibrated

Block and Bleed Valves

Model Max Pressure Materials Seal Materials End 1 Connector End 2 Connector
QTHA-BLB0-HH 3,000 psi / 207 bar / 21 MPa Brass Buna-N
Delrin
Teflon
Male Quick-test Male Quick-test
QTHA-BLB0-HC 3,000 psi / 207 bar / 21 MPa Brass Buna-N
Delrin
Teflon
Male Quick-test Female Quick-test
QTHA-BLB0-1F-1F 3,000 psi / 207 bar / 21 MPa Brass Buna-N
Delrin
Teflon
1/8" Female NPT 1/8" Female NPT
QTHA-BLB0-2F-2F 3,000 psi / 207 bar / 21 MPa Brass Buna-N
Delrin
Teflon
1/4" Female NPT 1/4" Female NPT
QTHA-BLS0-HH 5,000 psi / 345 bar / 34 MPa Stainless Steel Buna-N
Delrin
Male Quick-test Male Quick-test
QTHA-BLS0-HC 5,000 psi / 345 bar / 34 MPa Stainless Steel Buna-N Male Quick-test Female Quick-test
QTHA-BLS0-2F-2F 5,000 psi / 345 bar / 34 MPa Stainless Steel Buna-N
Delrin
Teflon
1/4" Female NPT 1/4" Female NPT

Find a Distributor

Domestic United States

Enter your ZIP code to find the closest distributor to you.

Global Distributors

© Copyright 1997 - 2018 Ralston Instruments. All rights reserved. Privacy Policy