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SDNR Globe Valves: The Safety Hero for Marine Pumps & Boilers
An SDNR (Screw‑Down Non‑Return) globe valve combines stop valve and check valve functions—essential for marine safety.
How It Works:
Stem Closed: Acts as a stop valve (shuts off flow).
Stem Raised: Disc free‑floats to prevent backflow (check valve).
Critical Applications:✅ Pump Discharge: Prevents reverse flow when pumps stop (avoids damage).✅ Boiler Feed Lines: Stops backflow to protect boilers.✅ Fuel Oil Systems: Isolates and prevents backflow in supply lines.
Key Features:
Bidirectional sealing (metal‑to‑metal).
Compact marine design (fits small engine rooms).
Certified per DNV/ABS/CCS.
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