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Swing Check Valve
Swing Check Valve
Alex Valves Automation offers Non Return Swing Check Valve in Bolted Cover Design having Swing type disc. The one piece disc body construction is securely fastened to the hinge by means of a lock nut & pin. The Disc is free to rotating type to avoid any other wear. The hinge pin offers excellent wear resistance properties. These types of valve (Non Return Valves) are used to stop back flow to the upstream side of the valve
Swing Check Valve or Non Return Valves also can be supplied with Titling disc design, Dash pot arrangement and outside lever & weight design for use where control of the disc is desires. Swing check valves are self actuating type.
Usage & Safety Precautions
Swing Check Valve
Special Alloy Check Valves : All Alex Valves Automation Swing Check Valve are available in these Special Alloys like Titanium Alloy, Zirconium Alloy, Nickel Alloy, Hastelloy Alloy, Inconel Alloy, Incoloy Alloy, Monel Alloy, Aluminium Bronze and Duplex Steel.
Design & Testing International Standard of Swing Check Valve
| Design Standard | : | BS 1868 / ASME B 16.34 / API 6D Standard |
| Inspection & Testing Standard | : | BS EN ISO 12266 – I (BS 6755 – I) / API 598 / ISO 5208 |
| Flange To Flange Distance | : | As Per ANSI B 16.10 / API 6D |
| End Connection | : | Flanged End to ANSI B 16.5, Class 150 / 300 / 600 |
| : | BS 10 Table D / E / F / H | |
| : | PN 6 / PN 10 / PN 16 / PN 25 / PN 40 / PN 64 | |
| : | DIN Standard / JIS Standard / IS Standard | |
| : | Butt Weld End to ANSI B 16.25 | |
| Manufacturing Size Range | : | 1/2″ (DN15) to 24″(DN 600) |
| Pressure Rating of Valve | : | 150# / 300# / 600# |
| : |
MOC (Bill of Material – BOM)
| Body, Cover & Disc | : | ASTM A 126 GR. B / IS 210 GR. FG 200/220/260 (Cast Iron) / Ductile Iron / Nodular C.I. |
| : | ASTM A 216 GR. WCB (Cast Carbon Steel) | |
| : | ASTM A 351 GR. CF 8 / CF 8M (SS 304 / SS 316) | |
| : | ASTM A 351 GR. CF 3 / CF 3M (SS 304L / SS 316L) | |
| : | ASTM A 351 GR. CN7M / ASTM A351 Gr. CF8C | |
| : | ASTM A351 Gr. CD4Mcu / ASTM A351 Gr. CK3MCuN | |
| : | ASTM A352 Gr. LCA / LCB / LCC | |
| : | ASTM A217 Gr. WC1 / WC6 / WC9 / C5 / C12 | |
| : | ASTM A494 Gr. CW6MC / CW2M / CY40 / CU5MCuC | |
| : | NACE MR0175 / NACE MR | |
| Seat | : | S.S. 410 (13% Cr. Steel) |
| : | ASTM A 105 + 13% Cr. Face | |
| : | S.S. 410 (13% Cr. Steel) + Stellited F6 Hard Face | |
| : | S.S. 304/316/304L/316L | |
| : | Alloy 20 / Hast Alloy | |
| : | Duplex Steel / Super Duplex Steel | |
| Gasket | : | SS 304/316 Spiral Wound with CAF/Graphite Filled |
| : | Graphited Asbestos wire based | |
| : | CAF – Compressed Asbestos Fibre | |
| : | Graphite Tensed Gasket | |
| : | PTFE / 25% GFT | |
| Bolts / Stud & Nuts | : | ASTM A 193 GR. B7 / A 194 GR. 2H |
| : | S.S. 304/316/304L/316L |
Salient Features
Body & Cover made from high quality casting with liberal sections.
The castings are precision machined for high performance of valve.
Bolted Cover design
Body Seat Ring & Disc machined to close Tolerances providing smooth action and accurate seating.
Seat Ring sealweld to the body
Replaceable (Renewable) type Seat Ring & Integral Seat can also available on special request.
Stellited Hard Face F6 Seat Ring & Disc also supply on requirement.
All the disc have double lock nut or cotter pin fixed
In built wear life for long duration of service.