Technical Parameters

1.Flanged connection shall comply with the standards GB/T 17241.1-2024 and GB/T 9124.1-2019.

2.Strength and sealing tests shall comply with the standard GB/T 13927-2022.

3.Relevant technical parameters are listed in Table 1, materials of main components in Table 2, overall dimensions in Table 3.

Precision Valve Manufacturing

Professional Valve Manufacturer | Integrated Manufacturing

Raw Material

We select high-quality raw materials according to product specifications and international standards. All incoming materials are carefully inspected to ensure chemical composition, mechanical properties and traceability.

Forging & Casting

Advanced forging and casting processes are used to produce strong and reliable valve bodies and components. Strict process control ensures uniform structure, dimensional accuracy and excellent mechanical performance.

CNC Machining

Our CNC machining equipment provides precise and consistent processing of valve components. Critical dimensions, threads and sealing surfaces are strictly controlled to ensure accurate assembly and reliable sealing performance.

Shot Blasting & Coating

Valve surfaces are professionally shot blasted to remove rust, scale and impurities. Protective coatings are then applied according to customer requirements, providing excellent corrosion resistance and a durable surface finish.

Pressure Testing

Every valve undergoes strict pressure testing before shipment. Body and seat tests are performed according to applicable standards and customer specifications to verify pressure resistance and sealing reliability.

Quality Inspection

Our quality control team conducts comprehensive inspections throughout the production process. Finished valves are checked for dimensions, appearance, materials, pressure performance and overall quality before final approval and shipment.

Product Advantages

• 304/316 Stainless Steel Shell: All-stainless body construction offers extreme resistance against aggressive fluids, high humidity, and environmental corrosion.

• Line-Fluid Driven Operation: Leverages internal pipeline hydraulics for continuous diaphragm actuation—functioning fully automatically without reliance on electric motors or air lines.

• Instantaneous Pressure Relief: Triggers swift valve opening to vent dangerous surge spikes whenever line pressure surpasses the calibrated setpoint.

• Manual Tuning Interface: Features an ergonomic adjustment handwheel combined with a dual-needle valve manifold for precise, effortless field calibration.

• Live System Monitoring: Fitted with an integrated pressure indicator to provide clear, real-time visual tracking of operating conditions.

• Heavy-Duty Diaphragm Assembly: Engineered with a durable diaphragm for consistent, low-hysteresis movement during long uninterrupted service cycles.

Target Operating Systems

• Municipal potable water distribution networks and main headers

• High-volume booster pumping stations and pump discharge lines

• High-rise residential plumbing and commercial water supply risers

• Industrial process cooling networks and closed loop water circuits

• Water treatment plants and wastewater processing infrastructure

• Over-pressure safety loops and surge protection setups for critical piping systems

Crafted from premium-grade stainless steel, our automatic hydraulic pressure relief valves deliver unyielding corrosion resistance and precise over-pressure protection without relying on external power. Keep your critical infrastructure safe, clean, and performing at its peak—even in the most demanding environments.