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High-Performance Pressure Relief Valve with Durable Ductile Iron Body1
Valve, Pressure Sustaining and Relief Valve, High-Performance Pressure Sustaining Valve
Hengkong Building Technology (Shanghai) Co., Ltd.
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Product Description Product DescriptionHigh-performance pressure sustaining/relief valve is designed for overpressure protection and upstream pressure stabilization in water supply, HVAC, and industrial pipeline systems. It combines dual functions:Pressure relief: Discharges excess pressure when upstream pressure exceeds the set value.Pressure sustaining: Maintains a stable upstream pressure by modulating flow. Key FeaturesPrecision ControlOpening pressure: Set value +0.2 bar (adjustable).Fast response: Opens in <0.5 seconds to prevent system damage.Tight sealing: Closes drip-tight at -1 bar below the set pressure.Robust DesignMaterials:Body: Ductile iron (QT500-7), Stainless steel (SUS304/316), Duplex (SAF2205), or Bronze.Ductile iron /Stainless steel /Duplex/BronzeSeals: EPDM, NBR, or HNBR (resistant to wear/corrosion).Anti-cavitation: Optimized seat design to minimize noise and erosion.Wide CompatibilitySizes: DN40-DN1200 (1.5"-48").Pressure ratings: PN10/16/25/40, ANSI Class 150/300.Temperature range:Water: 0°C to 70°C.Fuel: -40°C to 70°C.Detailed Photos ApplicationsWater distribution: Protects pumps and pipelines from water hammer and overpressure.HVAC systems: Maintains stable pressure in heating/cooling circuits.Industrial processes: Safeguards equipment in fuel, seawater, and chemical pipelines.Municipal projects: Used in reservoirs, water towers, and irrigation networks.Technical SpecificationsParameterDetailsControl Accuracy±5% of set pressureFlow CapacityUp to 10,000 m3/h (varies by DN size; see page 6-7 for head loss curves).Connection TypesFlanged (EN 1092-2, ANSI, JIS) or threaded.ActuationSelf-acting (no external power required).Optional FeaturesAnti-cavitation cage, position indicator, electric remote control. Company Profile Packaging & ShippingFAQ1. What is your term of payment?A: 30% advance payment, 70% to be paid before delivery after goods are ready.2. How about your delivery time?A: Delivery Lead Time: Standard shipment within 30 days. Exact delivery date will be confirmed based on order quantity and specific requirements.3. Can you produce products with my own brand?A: Yes, we can offer OEM services.
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