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Free-Floating Ball Non-Return Valve for Vertical Pump Discharge and Process Risers
This datasheet covers ball check valves with free-floating SS316 ball for vertical flow applications including pump discharge risers, chemical dosing, and sanitary process lines.
| Parameter | Specification |
|---|---|
| Valve Size Range | DN15 to DN200 (1/2" to 8") |
| Pressure Rating | PN16 / PN40 / Class 150 / Class 300 |
| Body Material | CF8M (SS316) cast stainless steel, investment or sand cast |
| Ball Material | SS316 solid ball, precision ground and polished |
| Seat Material | PTFE insert or integral SS316 lapped seat |
| Cover Material | CF8M (SS316) bolted or threaded cover |
| Gaskets | PTFE or EPDM full-face gaskets per service fluid |
| Temperature Range | -20°C to +180°C (PTFE seat); -29°C to +425°C (metal seat) |
| End Connections | Flanged ASME B16.5 / BS EN 1092-1, threaded NPT, socket weld, tri-clamp |
| Cracking Pressure | 0.05 to 0.2 bar depending on size and ball weight |
| Features | No springs, self-cleaning, low cracking pressure, sanitary option, bidirectional seat option |
| Component | Material |
|---|---|
| Body | CF8M (SS316) cast stainless steel, machined seat bore and ball chamber, solution annealed |
| Ball | SS316 solid ball, precision ground to spherical tolerance, mirror polished for low friction |
| Seat | PTFE insert for bubble-tight shutoff and low cracking pressure; integral SS316 lapped seat for high temperature |
| Cover | CF8M (SS316) bolted or threaded cover with gasket groove and ball retention shoulder |
| Gaskets | Virgin PTFE full-face gasket for chemical service; EPDM for water and sanitary service |
| Studs / Nuts | SS316 A4-80 studs and nuts for corrosion resistance and high-temperature strength |
| Test | Requirement |
|---|---|
| Test Standard | API 598 / ISO 5208 |
| Certification | CE, PED, ISO 9001, 3A sanitary on request |
| Standard | Description |
|---|---|
| Design Standard | ASME B16.34 / API 6D / BS 1868 |
The Ball Check Valve -- Vertical Flow SS316 is designed, manufactured, and tested in accordance with applicable API / ASME / BS / ISO international standards. Compliance documentation and Material Test Certificates (EN 10204 3.1) are provided with every order.
Standard construction is carbon steel, stainless steel (CF8 / CF8M), and special alloy grades. Alternative and upgraded grades -- Duplex, Super Duplex, Inconel, Monel, Hastelloy, and NACE MR0175 trims for sour service -- are available on request.
It is offered in a range of sizes as per the technical specification with standard ANSI / ASME pressure classes (PN ratings on request). End connections include flanged (RF / RTJ), butt-weld, socket-weld, and screwed ends as per specification.
Yes. Supreme Valves India is an established exporter of industrial valves to Saudi Arabia (KSA), the UAE, Qatar, Kuwait, Oman, Bahrain, and across the Gulf. We provide sea-worthy export packing, EN 10204 3.1 / 3.2 certification, certificate of origin, and support for SABER / SASO conformity on KSA shipments.
Every valve undergoes hydrostatic shell and seat testing per API 598 / ISO 5208. Documentation includes EN 10204 3.1 MTC (3.2 on request), NDT reports, and fire-safe (API 607) or NACE MR0175 certification where applicable. Third-party inspection by TÜV, SGS, Bureau Veritas, or Lloyd's Register can be arranged.
Order quantities are flexible -- from single units for stocked items to bulk volumes for project requirements. Lead time depends on size, material, and quantity; please contact our team with your specification for a firm delivery schedule and quotation.