Safety Relief Valve

  1. Home
  2. Products
  3. Safety Relief Valve
  4. Carbon Steel Safety Relief Valve
Carbon Steel Safety Relief Valve

Carbon Steel Safety Relief Valve


The surface of the carbon steel safety relief valves we produce is treated with spray coated, nickel plated or black oxide, so it has good corrosion resistance and can withstand the erosion of various chemical substances, suitable for various liquid environments. 

Compared with other materials, carbon steel material has good pressure resistance and processing precision, with exquisite appearance and good surface smoothness. They are made of refined all metal materials, with a heavy weight and a sense of condensation, and a long service life which widely be used in many important industrial fields such as petroleum, chemical, power, metallurgy, etc.


Basic information of carbon steel Series Safety Relief Valves

Diaphragms: PTFE composite NBR,EPDM etc.

Material for upper valve body: Carbon steel with spray treatment or customized

Material for lower valve body: Carbon steel with nickel plated, black oxide etc.

Adjustable pressure: 0-1.0MPa,0-2Mpa

Connection type: Thread,Flange and can be customized


Model of Carbon Steel Safety Relief Valve

ModelMaterialNominal Dia. (mm)Setting Pressure (MPa)DimensionTotal Height (mm)Standard Connection
RXAF-A6/1.0Carbon steel60.1-1.064.782Rc1/8”
RXAF-A8/1.0Carbon steel80.1-1.064.787Rc1/4”
RXAF-A10/1.0Carbon steel100.1-1.064.789Rc3/8”
RXAF-A15/1.0Carbon steel150.1-1.064.794Rc1/2”
RXAF-A20/1.0-NCarbon steel200.1-1.064.7104Rc3/4”
RXAF-A20/1.0Carbon steel200.1-1.087123Rc3/4”
RXAF-A25/1.0Carbon steel250.1-1.087128Rc1”
RXAF-A32/1.0Carbon steel320.1-1.0117175Rc1 1/4”
RXAF-A40/1.0-NCarbon steel400.1-1.0117185Rc1 1/2”
RXAF-A40/1.0Carbon steel400.1-1.0137240Rc1 1/2”
RXAF-A50/1.0Carbon steel500.1-1.0167260Rc2”
RXAF-A65/1.0Carbon steel650.1-1.0177325Rc2 1/2”
RXAF-A80/0.6Carbon steel800.1-0.62254203” flanged
RXAF-A100/0.6Carbon steel1000.1-0.62404304” flanged
Other unspecified model/material/connection and DN100 above can be customized according to requirement.

General Information of our diaphragm type safety relief valves

Safety relief valve is opened and closed automatically according to the working pressure of the pressure system. Safety valve is generally installed on the equipment of closed system or pipeline to keep the system safety. When the pressure in the equipment or pipeline exceeds the setting pressure of the safety valve, it will open automatically and relief the pressure to ensure that the medium pressure in the equipment and pipeline is under the setting pressures the equipment and pipeline can  work normally to avoid accidents and losses.

Design features:

- With Diaphragm structure spring and the pressure can be adjustable.

- The wetted parts are only the lower valve body and the diaphragm and they are assembled  with sealing rib which has good sealing effect and high sensitivity.

- Multiple materials of diaphragm are optional to meet the usage of different environments and scenarios.

Technical Parameters
Connection typeThread, flange etc. and can be customized
Adjustable pressure0-1.0MPa, 0-2.0MPa
Safety test pressure1.5 times the maximum input pressure
Applicable temperature-60℃ to +300℃ (customizable）
Available materials
Materials for Lower valve bodyPVC,SS304,SS316L,Hastelloy, PTFE,PVDF,PP, carbon steel etc.and can be customized
materials for diaphragmPTFE composite NBR,EPDM etc.
Material for upper valve bodyNylon,PVC, carbon steel , SS304,SS316L etc.and can be customized


Conact Us