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

In stock
Article number
530-114-1051
List price: EUR 2,130

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.      

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More Information
Product Name BQ-1/4"NPT-BRZ/BRZ/B2/5-15psi
Country of Manufacture United States
Service Gas or Liquid
Size [DN] DN8
Set pressure range [Bar] 0,34 - 1,03 bar
Size 1/4" (DN8)
Temperature range [°C] -29 to +83
Model BQ
Valve Type Back Pressure Regulator
Size [Inch] 1/4"
Seat Soft Seat
Seat Material Buna-N (NBR)
Sealing Material Graphite/NBR
Diaphragm Type Composition
Diaphragm Material Neoprene (BC)
Material Body Cast Bronze ASTM B62 C83600
Spring Chamber Material Cast Bronze ASTM B62 C83600
Trim Material Brass
Trim Number B2
Connection NPTF
Max pressure 27.6 Bar
Max Temperature [°C] +83
Min Temperature [°C] -29
Leakage Class ANSI /FCI 70-2 Class VI
Kvs [m3/h] 1.56
Cv [gpm] 1.81
Configuration Spring Operated
O2 Cleaned No
Application Fluid, Gas
Certificate On Request - ATEX II 2 G Ex h IIB T6...T1 Gb 1000ATEXR1 X
Process media Oil, Combustible gases, Inert gases

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

More Information
Length [mm] 0
Height [mm] 0
Width [mm] 0
Net Weight [kg] 4.0
Statistics code 84811019