Stainless Steel Back-Pressure Regulators

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Stainless Steel Back-pressure Regulators, featuring stainless steel diaphragm or piston-type structure, have accurate pressure control. They are used to adjust upstream pressure and are suitable for p...

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Stainless Steel Back-Pressure Regulators: Definition, Features, Applications & Parameters

Definition of Stainless Steel Back-Pressure Regulator

Structural Features of Stainless Steel Back-Pressure Regulator

Hard seal is adopted between the body and the diaphragm.
Body thread: 1/4" NPT (F) - 1" NPT (F).
Panel-mounted or wall-mounted installation is available.

Application Fields of Stainless Steel Back-Pressure Regulator

Laboratories
Gas analysis
Process control
Petrochemical industry

Technical Parameters of Stainless Steel Back-Pressure Regulator

Parameter Category	Specifications
Maximum Adjustment Pressure	6000 psi
Adjustment Pressure	0-6000 psi
Safety Test Pressure	1.5 times the maximum input pressure
Operating Temperature	-40°F to +446°F (-40℃ to +230℃)
Leakage Rate	2×10⁻⁸ atm cc/sec He
Cv Value	0.08

Body Materials

Component	Material
Body	316L
Bonnet	316L
Diaphragm	316L
Valve Seat	PCTFE, PTFE, Vespel
Spring	316L
Valve Core Stem	316L

Definition of Low-Pressure Back-Pressure Regulator

Low-Pressure Back-pressure Regulators can stabilize pipeline pressure, provide a stable back pressure for the system, and improve material dosing accuracy; Micro-pressure Back-pressure Regulators adopt a large diaphragm cover balancing structure, featuring stable pressure control and high precision, and are used in low-pressure liquid and gas pipelines.

Working Principle of Low-Pressure Back-Pressure Regulator

Back-pressure Regulators work by the elastic force of the spring. When the system pressure is lower than the set pressure, the diaphragm blocks the pipeline under the action of the spring's elastic force; when the system pressure is higher than the set pressure, the diaphragm compresses the spring, the pipeline is connected, and the medium passes through the Back-pressure Regulator.

Technical Parameters of Low-Pressure Back-Pressure Regulator

Parameter Category	Specifications
Core Function	Overpressure relief and precise stabilization of inlet pressure
Structure Type	Diaphragm-type structure, with accurate pressure control to maintain stable system pressure
Maximum Front-End Control Pressure	375 psi (2.58 MPa)
Range Specifications	0-100 psi (0-0.68 MPa), 0-250 psi (0-1.72 MPa), 0-375 psi (0-2.58 MPa)
Installation Test Pressure	1.1 times the range pressure for gaseous media; 1.5 times the range pressure for liquid media
Operating Temperature	-23 ℃~74 ℃
Valve Body Thread	1/8 NPT female thread
Installation Method	Panel-mounted installation
Applicable Media & Fields	Suitable for gases and liquids; widely used in laboratories, analytical testing instruments, process control, petrochemical industry and other fields