BQ-1/4"NPT-BRZ/BRZ/B2/5-15psi

EUR 2,028
In stock
Article number
530-114-1051

Comes with various options to choose from, Closing cap, Special cleaning for Non-oxygen Service and Oxygen Service, Cryogenic Construction, Atex and PED Certificates”.               

The Model BQ is is primary a general service, self-contained pressure relief / pressure sustaining regulator suitable as a back pressure regulator or bypass valve for controlling inlet pressures between 5-15 Psig (0,34 - 1,03 Barg). 10-25 Psig (0,69 - 1,72 Barg). 20-75 Psig (1,38 - 5,17 Barg).  65-150 Psig (4,48 - 10,3 Barg). 140-300 Psig (9,65 - 20,68 Barg).  For 1/4", 3/8" or 1/2" (DN8, 10, and 15) process piping.  With a large orifice and diaphragm provide sensitivity with high capacity.  The composition seat allow for tight shut-off.

This Model BQ is excellent for atmospheric industrial gases – GN2, Ar, He, H2, CO2 – as well as natural gas.  Also pressure sustaining applications where the temperature is greater -29 Deg C.  Can be used as a utilities air regulator. Also for use in corrosive and non-corrosive chemical gas services are possible depending on material compatibility

Other options available upon request include Cleaning for Oxygen service, cryogenic construction and differential/pressure loaded construction.  Four body materials and twenty-one trim material combinations allow compatibility with many liquids and gasses.

Atex and PED Certificates upon request.      

Do you have questions? Contact us >>
Add product to comparison list >>
More Information
Model BQ
Product Name BQ-1/4"NPT-BRZ/BRZ/B2/5-15psi
Country of Manufacture United States
Description 1/4"NPT-BRZ/BRZ/B2
Service Gas
Size [DN] 1/4" (DN8)
Spring range 1,38-5.17 Bar
Temperature range [°C] -29 to 83
Material body Cast Bronze ASTM B62 C83600
Spring Chamber Material Cast Bronze ASTM B62 C83600
Seat Soft Seat
Connection NPTF
Operation Method Spring Operated
Trim no B2
Diaphragm Type Composition
Diaphragm Material Neoprene (BC)
Seat material Buna-N (NBR)
Max pressure 27.6 Bar
Cv [gpm] 1.81
Kvs [m3/h] 1.56
Gross Weight [kg] 0
Net Weight [kg] 4.0
Package size [mm] 0
Statistics code 84811019
Length [mm] 0
Height [mm] 0
Width [mm] 0
O2 Cleaned No

MODEL BQ REV A

BACK PRESSURE REGULATOR,

GRAPHITE/NBR GASKETS;

DN8 (1/4") INLETS, DN15 (1/2") OUTLET;

BRONZE BODY WITH BRONZE SPRING CHAMBER;

B5 TRIM: BRASS WITH BUNA-N(NBR) SEAT, NEOPRENE (BC) DIAPHRAGM;

NPT END CONNECTIONS;

0.34-1.03 BARG (5-15 PSIG) RANGE SPRING

The Model BQ Back Pressure Regulator  Designed for controlling a wide range of industrial gases.

  • Excellent for atmospheric industrial gases:
  • Nitrogen (GN2), oxygen (GOX), Argon (Ar), helium (He), Hydrogen (H2), Carbon Dioxide (CO2), also for use with Natural gas, Biogas, Propane and LPG systems.
  • Corrosive and non-corrosive chemical gas services are possible with broad materials range.
  • Economizer Regulator
  • Pump Recirculation pressure Relief Valve
  • Irrigation mains pressure control
  • Compressor Seal Oil

Not all of these applications are suitable for all product variants. Consult with one of our technical specialists to ensure that the selected variant is suitable for your application.