Heavy Duty S505X Pressure Sustaining/reducing Valve, Cast Iron Body, Suitable for Water Treatment Plants

As a leading industrial valve manufacturer based in Shanghai, China, Shanghai Sote Valve Co., Ltd. proudly presents the Heavy Duty S505X Pressure Sustaining/Reducing Valve – engineered specifically for rigorous water treatment applications. This cast iron valve delivers critical pressure management through precision engineering, ensuring system stability and longevity in municipal and industrial water facilities.

Built to withstand demanding operational cycles, the S505X series combines robust construction with responsive hydraulic control, effectively reducing energy waste and preventing pipeline damage. Our decade-long expertise in fluid control solutions guarantees valves that meet stringent performance requirements while minimizing maintenance costs.

Core Technical Specifications:

• Pressure Regulation Range: 0.1~2.5 MPa (customizable for higher demands)

• Temperature Tolerance: 0°C~80°C (EPDM seat) / 0°C~120°C (optional NBR)

• Leakage Class: ANSI Class IV or higher upon request

• Actuation: Self-operated diaphragm system with stainless steel internal components

Operational Advantages:

• Dual-function design handles both pressure sustaining (upstream) and reducing (downstream) with one valve body

• Corrosion-resistant epoxy coating extends service life in chemically treated water environments

• Zero-energy operation reduces electrical dependencies and operational costs

• Modular diaphragm assembly allows for quick field maintenance without pipe disassembly

For water treatment engineers, the S505X eliminates pressure surges that damage filters and membranes, while maintaining constant flow rates during pump start/stop cycles. Municipal plants report 30% fewer pipe ruptures and 15% energy savings after installation.

Trusted Performance in Critical Infrastructure:
Shanghai Sote Valve has supplied over 12,000 valves to Asian water treatment facilities since 2010, with documented MTBF (Mean Time Between Failures) exceeding 60,000 hours for the S505X series. Our Shanghai-based factory maintains full vertical integration from casting to assembly, ensuring traceable quality control. Request third-party test reports for hydraulic performance validation.

Optimize your plant’s efficiency with valves designed for 24/7 operation – contact our engineering team for project-specific sizing calculations and material certifications. Custom actuator configurations and factory acceptance testing are available upon request.

Frequently Asked Questions:

• Q: Can this valve handle chlorinated water?
  A: Yes, the standard EPDM seat material is rated for continuous exposure to chlorine concentrations up to 5 ppm. For higher levels, optional FKM seats are available.

• Q: Is pilot tubing included with the valve?
  A: Pilot tubing and fittings are supplied as standard for DN50-DN200 sizes. Larger valves require field-supplied tubing based on installation distance.

• Q: What maintenance intervals are recommended?
  A: Diaphragm inspection every 24 months under normal conditions. No scheduled lubrication needed due to non-rotating stem design.

• Q: Are flange gaskets provided?
  A: Gaskets and bolts are not included but can be supplied as a kit upon request (specify flange standard).

• Q: Can it be installed vertically?
  A: Horizontal installation is recommended. Vertical orientation requires optional stem orientation kit.

• Q: What is the lead time for DN300 valves?
  A: Standard DN300 valves ship in 4-5 weeks. Expedited production may be available – contact sales for urgent requirements.