A non-return valve is fitted to ensure that a medium flows through a pipe in the right direction, where pressure conditions may otherwise cause reversed flow. Non-return valves are e.g. used with mixing loops in heating and cooling systems to ensure proper operation, and with domestic water systems to prevent backflow.
| Detail | Narration |
|---|---|
| Construction | Bolted Cover / Pressure Seal Cover,Swing Check,Tilting Disc |
| Ends Connection | Flanged end ,Screwed end , Buttweld end , Ring Type Joints (RTJ) |
| Pressure Rating | 150#, 300#, 600#, 800#,900#,1500# |
| Size Range | 15 mm to 600mm |
| Operated | Self |
| Standards | |
| Design STD | BS 1868 |
| Testing | BS 6755 Part – 1 |
| Flanged end | ASME B 16.5 |
| Buttwelding end | ASME B 16.25 |
| Face to Face Dimensions | ASME B 16.10 |
| Materials | |
| BODY | WCB //WC6/WC9/C5/C12/LCB/LCC/LC1/LC2/LC3/CF8/CF8M/CF3/CF3M/CN7M |
| TRIM | 13%Cr. Steel / SS 304 / SS 316 / SS 304L / SS 316L / ALLOY 20 |
| Other special materials available on request. |
