The RJ439/RJ429 series is a direct-action, spring-set pressure-regulating valve, ideal for micro-pressure control of various gases and especially suited for micro-pressure nitrogen sealing systems. Designed with the lever principle, the valve features a thrust amplification factor of six times, ensuring high precision, zero leakage, and pressure difference resistance.

Design features    >>>

1. Safety overload protection: Effectively unloads overload pressure under abnormal conditions, preventing valve damag；

2. Stainless steel actuator: This option enhances the valve's appearance, prevents rust, and improves its stability and longevity;

3. Modular design: Versatile and easy to replace parts;

4. Special valve body: The internal structure is different from pneumatic regulating valves, making it better suited for self-operated control;

5. High precision: The precision can reach a control pressure as low as 0.5 KPa;

6. Thrust amplification mechanism: Since the control pressure is extremely low, the actuator pressure is limited. The lever force amplification mechanism boosts the thrust sixfold, giving it excellent adjustment and pressure difference resistance;

7. Rotatable actuator: Allows the top of the actuator to be rotated to the desired position when installation space is limited;

8. Zero leakage: The valve core features a soft-sealing structure that effectively cut off fluid when the valve is closed to achieve zero leakage;

9. Applicable and corrosive conditions: The valve is made of stainless steel, offering effective resistance against corrosive conditions.

Application fields    >>>

☼Chemical industry ☼Petroleum industry ☼Electricity industry ☼Pharmaceutical industry ☼Metallurgical industry ☼Food industry ☼Others

Execution standard    >>>

Design criteria：ASME B16.34、GB/T 12224-2015

Structural length：IEC60534-3-1-2001、GB/T 12221-2005

Leakage rating：ANSI B16.104、GB/T4213-2008

Connection standard：ASME B16.5、GB9113、JB79.1~4、HG20592

Product parameters    >>>

Main components and materials    >>>

Rotatable actuator    >>>

If the installation position of the pressure regulating valve is inconvenient for adjustment or observation, or if the installation space is limited, simply loosen the screw, and the actuator can rotate 360° without disassembling the valve.

※ If you need to take pressure from the valve body flange, confirm the actuator direction before ordering.

Safe discharge    >>>

In the event that the diaphragm of the pressure regulating valve is damaged, medium leakage may occur. If leakage is not permitted on site, you can install a drainage pipe on the valve actuator to discharge the medium to a safe area.