AKSZ series self-operated pressure regulating valve (referred to as pressure regulating valve) does not need external energy, using the energy of the medium to be adjusted as the power source, introducing the actuator to control the position of the valve core, changing the pressure difference and flow at both ends, so that the pressure before the valve (or after the valve) is stable. It has the advantages of sensitive action, good sealing, small pressure set point fluctuation, etc., and is widely used in petroleum, chemical industry, electric power, metallurgy, food, textile, machinery manufacturing and residential buildings and other industrial equipment with gas, liquid and steam medium pressure reduction and pressure relief and pressure regulation automatic control. It can be used in the occasions of no electricity and no air. It is equipped with a condenser and can work continuously under 350℃ steam.
● Diversified Actuator Design
Diaphragm Actuator: High sensitivity and rapid response to pressure changes, suitable for dynamic regulation scenarios.
Cylinder-Piston Actuator: High-pressure resistance, large adjustment stroke, designed for high-temperature (350°C) and high-pressure applications (e.g., steam systems).
● Multi-Structure Valve Body Compatibility
Offers single-seat valve, sleeve valve, double-seat valve, and other structures to adapt to diverse media (e.g., high-viscosity, corrosive) and operating conditions (e.g., high pressure differential, large flow rates).
● High-Temperature and Pressure Resistance
Equipped with a condenser for stable operation in 350°C steam environments, avoiding direct thermal impact on the actuator.
● High Precision and Stability
Excellent sealing performance: Reduces media leakage risks.
Minimal pressure setpoint fluctuations: Ensures stable upstream/downstream pressure via precise spool positioning.
● Broad Media Adaptability
Suitable for gases (gas, air), liquids (water, oil), steam, and other media, meeting complex operational demands.
● Harsh Environment Suitability
Operates entirely on the energy of the regulated medium (e.g., pressure or temperature), requiring no external power or air supply, ideal for electricity-free, air-free, or remote environments.
● Modular Functional Design
Composed of four modular components: actuator, regulating valve, condenser, and downstream connector, enabling easy installation, maintenance, and functional expansion.
● Multi-Industry Application Coverage
Widely used in petroleum, chemical, power, metallurgy, food, light textile, machinery manufacturing, and building complexes, supporting pressure reduction stabilization and pressure relief stabilization control modes.
● Nominal diameter: 1/2”-10” （DN15-DN250)
● Nominal pressure: PN 8/10/16
● Medium temperature: -40℃-150℃
● Valve body material: 316L/ carbon steel /FRPP/PVDF/CPVC/UPVC/PPH
● Rubber diaphragm: F46/PFA/PTFE/EPDM
● Installation method: Flange type/clamp type
petroleum, chemical industry, electric power, metallurgy, food processing, textile, water treatment, machinery manufacturing
