Check Valve
MeiDe ’s API 6D-certified check valves ensure unidirectional flow with zero backflow (≤2ppm leakage) and 85% water hammer reduction. Key advantages:
Robust Construction: ASTM A216 WCB/CF8M bodies resist corrosion/rust (NACE MR0175) under -29°C~425°C (-20°F~800°F).
Versatile Designs: Dual-plate (water treatment), nozzle (oil/gas), tilting disc (800°C steam), and PTFE-lined (chemical) valves.
Rapid Closure: Spring-assisted discs close in 0.2s (ISO 5208 Class IV).
Global Compliance: API 6D/6FA/607, CE, SIL3, EAC, ISO 19001 certifications.
Applications:
Water/Wastewater: EPDM-sealed wafer valves handle 30% solids (AWWA C508).
Oil & Gas: Hâ‚‚S-resistant trim (API 6D) for sour pipelines.
Power Plants: API 607 fire-safe valves for high-temp steam.
Chemical: PTFE-lined bodies for acids/alkalis.
With 500,000+ cycles (2x industry average) and 12-day lead times, MeiDe delivers reliable, certified solutions across 140+ countries.
