4th Floor, Survey No. 235/A and 247/A, E/401, Nr. Bhattha School, Gyaspur, Ahmedabad 382405, Gujarat, India
Branch Office: Mehta House, Relief Road, Ahmedabad 380001
Tel: +91 97732 78770 | Email: info@supremevalves.in | www.supremevalves.in
Technical Datasheet -- Flush Bottom Tank Outlet Valves for Complete Drainage
Flush bottom (tank bottom outlet / drain) valves for reactors, vessels, and tanks in pharmaceutical, chemical, food, and biotech applications. Seat is machined flush with the tank interior floor, eliminating dead volume and ensuring complete drainage -- no product accumulation, no batch cross-contamination, no manual scraping required. SS316L body with mirror-finish electropolished surface (Ra <= 0.4 or 0.25 microns). Tri-clamp, flanged, or butt weld tank connection. Pneumatic or manual operation. CIP/SIP compatible. ASME BPE / 3-A Sanitary / ASME B16.34 compliant.
| Parameter | Specification |
|---|---|
| Product Type | Flush Bottom Valves |
| Category | Specialty Valves |
| Size Range | 1/2" to 8" (DN15 to DN200) |
| Pressure Rating | PN10 / PN16 / Class 150 (typical for tank bottom service) |
| Tank Connection | Flanged RF per EN 1092-1 / ASME B16.5 (pad or nozzle), Tri-clamp (sanitary, 1" to 4"), Butt weld (sanitary, DIN 11850 / ISO 1127 / ASME BPE), Threaded NPT / BSP (small sizes) |
| Outlet Connection | Flanged RF per EN 1092-1 / ASME B16.5, Tri-clamp (sanitary), Threaded NPT / BSP, Butt weld |
| Body Material | ASTM A351 CF3M (SS316L) -- low carbon for weldability and corrosion resistance / ASTM A351 CF8M (SS316) on request |
| Disc / Plug Material | SS316L with Stellite 6 or chrome plating on seating surface / SS316L hardened tip |
| Seat Material | SS316L integral seat flush with tank floor -- mirror finish Ra <= 0.8 microns (standard) / Ra <= 0.4 microns (electropolished, on request) |
| Packing / Seal Material | PTFE V-ring (FDA-approved, -50 to +200 deg C) / EPDM (FDA-approved, -20 to +120 deg C) / Graphite braided (high temp +540 deg C, non-sanitary) |
| Bonnet Type | Bolted bonnet with spiral wound SS316L/graphite or PTFE gasket |
| Operation | Handwheel (standard) / Pneumatic actuator (spring-return or double-acting, for automated CIP/SIP and batch discharge) / Electric actuator |
| Leakage Class | API 598 / EN 12266-1 Class A -- zero visible leakage; 3-A Sanitary Standard -- cleanability and drainability verified |
| Temperature Range | -20 deg C to +120 deg C (EPDM seal) -- up to +200 deg C (PTFE seal) -- up to +540 deg C (graphite packing, SS316 body) |
| Component | Material |
|---|---|
| Stainless Steel 316L | ASTM A351 CF3M (SS316L) body, disc, and seat -- low carbon content prevents carbide precipitation during welding, maintaining corrosion resistance in aggressive chemical and CIP environments |
| Stainless Steel 316 | ASTM A351 CF8M (SS316) body on request for non-welded, non-sanitary applications |
| Seat Overlay | Stellite 6 on SS316L seating surface for erosion and wear resistance in high-velocity discharge |
| Elastomer Seals | FDA-approved EPDM, PTFE, or silicone seals per 21 CFR 177.2600 for sanitary applications |
| Test | Requirement |
|---|---|
| Testing | Hydrostatic shell test 1.5 x WP per API 598 / EN 12266-1; Seat leakage test per API 598 / EN 12266-1; Functional test -- full stroke, torque; Material certificates per EN 10204 3.1 |
| Certification | ISO 9001:2015 QMS, EN 10204 3.1 material certificates, hydrostatic and seat test reports |
| Standard | Description |
|---|---|
| Design Standard | ASME BPE (reference), 3-A Sanitary Standards (3-A SSI, on request), manufacturer's standard, ASME B16.34 |
The Flush Bottom Valve -- Tank Outlet Pharma / Chemical 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.