The PS Series (DN15-65) Flange Connection 2-Way 2-Position Pilot-operated Piston Type Steam Solenoid Valve is a heavy-duty, ultra-reliable fluid control valve engineered specifically for central thermal pipe networks and primary steam supply lines of heavy machinery. In industrial configurations such as municipal district heating, automotive tire vulcanization, large-scale textile stenter settings, food retorting, and high-volume chemical processing, high-pressure steam traveling at immense velocities exerts relentless mechanical scouring and aggressive thermal stress on pipe fittings. For these large-volume, heavy-load pipeline scenarios, traditional threaded interfaces fall short of guaranteeing long-term anti-vibration stability and absolute zero-leakage security.

This series innovatively merges a pilot-piston high-pressure mitigation mechanism with heavy-duty industrial Flange connections. The valve body is precision-cast using thickened high-grade Brass or rugged Stainless Steel (SS304), with flange dimensions strictly adhering to engineering standards. Securely bolted to the pipeline flanges, this layout completely immunizes the joint against stress fracturing or external steam bypassing caused by thermal contraction and expansion cycles. Utilizing the pilot-operated pressure relief channel, the valve utilizes the line fluid's differential pressure to command pressures up to 16 bar across large orifices, standing as a critical heavy-load core switch in modern automated steam networks.

Product Image:PS Flanged 2/2-Way Piston Type Steam Solenoid Valve

Heavy-Duty Flanged Joints for Vibration Resistance: Utilizing standard industrial flanged connections that span a diameter reach from DN15 to DN65. This rigid configuration effortlessly neutralizes immense pipeline axial loads and high-frequency vibrations from cyclical actuation, ensuring absolute external gas-tight security when paired with high-temperature gaskets.

Dual Metallurgies with Superior Casting Integrity: Available in forged Brass or heavy-wall Stainless Steel (SS304) bodies to match targeted budgets and specific process chemistry. The SS304 version provides premium protection against acidic condensate degradation and vapor cavitation erosion under continuous live steam scouring.

Diaphragm-Free Piston Rings Tailored for 16 bar Differentials: Features a low-friction, heavy-wear piston assembly matched with premium high-temperature piston rings that master an operating window of 0.4 - 16 bar. By completely eliminating brittle elastomeric diaphragms that warp under high thermal load, the valve substantially pushes out the factory maintenance schedule.

180 C Continuous High-Temperature Sealing: All dynamic barriers and main valve seat interfaces are lined with premium imported PTFE or advanced fluorinated elastomers. Even under uninterrupted 180 C saturated steam baking, these seals reject thermal deformation, hardness degradation, or volume swelling, sustaining perfect inner sealing.

High Flow Capacity (Cv Value) with Suppressed Flow Resistance: The internal geometry of the heavy-bore valve cavity is refined via fluid dynamics simulations to minimize stagnation fields. Under pilot-operated actuation, the valve pops open swiftly to allow high-velocity steam mass to migrate seamlessly with negligible pressure drops while mitigating water hammer

Impacts

Structure Diagram:PS Flanged 2/2-Way Piston Type Steam Solenoid Valve

Parts List Sheet

Specification Sheet

Outline Diagram:PS Flanged 2/2-Way Piston Type Steam Solenoid Valve

Outline Dimension Table   （Unit:mm）