DIRECT ACTION FILM TYPE PRESSUREREDUCING VALVE SPRING
Product Model:Y42X
Nominal Diameter:15~500mm
NominalPressure:1.0~10MPa
Suitable temperature:0°C~80°C
suitable Medium: water, the corrosive liquid
Product Listing: Y42X Direct-Acting Spring Diaphragm Pressure Reducing Valve
Precision Control for Fluid Systems in Industrial Applications
Product Features & Applications
Purpose:
The Y42X Series Pressure Reducing Valve is designed to regulate and stabilize fluid pressure in piping systems, ensuring downstream equipment operates safely and efficiently. Ideal for:
- Water Supply Systems: Boiler feedwater, irrigation networks, and municipal water distribution.
- Industrial Processes: Chemical dosing, cooling loops, and hydraulic systems.
- HVAC/R: Chilled water lines, heating circuits, and refrigeration plants.
- Non-Corrosive Liquid Handling: Lubrication systems, food-grade fluid transfer, and laboratory applications.
Key Advantages:
- Direct-Acting Mechanism: No external power source required; relies on spring force and diaphragm sensitivity for rapid response.
- Wide Pressure Range: Adjustable output pressure from 0.05-1.0 MPa (adjustable via spring tension).
- Durable Construction: Resistant to cavitation, vibration, and hydraulic shock.
- Low Maintenance: Modular design simplifies repair and component replacement.
Technical Specifications
Parameter |
Details |
Model |
Y42X Series |
Nominal Diameter |
DN15-DN500 (½"-20") |
Nominal Pressure |
PN10-PN100 (1.0-10.0 MPa) |
Temperature Range |
0°C-80°C (32°F-176°F) |
Body Material |
Ductile Iron (GGG50), SS304/316 (optional) |
Diaphragm Material |
EPDM, NBR, or PTFE (media-dependent) |
Connection |
Flanged (ANSI B16.5, DIN PN10/16), or Threaded (NPT/BSP) |
Design Standards |
GB/T 12246, API 598, ASME B16.34 |
Suitable Medium |
Water, non-corrosive liquids (viscosity ≤50 cSt) |
Quality & Compliance
- Material Testing:
- Spectrometer Analysis: Verifies chemical composition of ductile iron/stainless steel.
- Hardness Testing: Ensures diaphragm compliance with ASTM D2240 standards.
- Performance Validation:
- Hydrostatic Shell Test: 1.5× PN pressure for 10 minutes (no leakage).
- Seat Leakage Test: <0.01% of rated flow at closed position (per API 598).
- Cycle Life Test: 50,000+ pressure adjustments without performance degradation.
- Certifications:
- ISO 9001:2015, CE Compliance, SIL Certification for safety-critical applications.
- WRAS Approval available for potable water systems.
- Warranty: 18 months from installation (extendable to 24 months for SS316 models).
Product Details
- Operational Principle:
- Pressure Sensing: Upstream pressure acts on the diaphragm, compressing the spring until balanced at the preset downstream pressure.
- Adjustment: Turn the spring compression screw to set output pressure (lockable for tamper resistance).
- Customizable Options:
- Materials: SS316L body for seawater applications or PTFE-lined diaphragms for aggressive chemicals.
- Accessories: Integral strainers, pilot-operated add-ons for high-pressure drops, or digital pressure gauges.
- Typical Applications:
- Desalination Plants: Stabilizing brine pressure in reverse osmosis systems.
- Power Generation: Controlling cooling water flow to turbines.
- Beverage Industry: Regulating syrup flow in bottling lines.
- Why Partner with Us?
- Global Expertise: 15+ years in valve engineering; projects in 30+ countries.
- Fast Delivery: Standard units ship in 7-10 days; urgent orders via air freight.
- Custom Engineering: CFD-optimized designs, ATEX Zone 1 compliance for hazardous areas.
Contact Us Today for technical drawings, material certifications, or a customized quotation!
Keywords: Direct-Acting Pressure Reducing Valve, Diaphragm Valve, Industrial Water Control






