SS316L 2-Piece Ball Valve supplier in Ahmedabad, Gujarat. ASTM A351 CF3M SS316L body — full SS316L trim (ball + stem + seat ring) — PTFE seat (standard, Class VI zero leakage) / RPTFE seat (high pressure / high cycle) —…
SS316L 2-Piece Ball Valve Supplier India | Full SS316L Trim | PTFE RPTFE Seat | Class 150 300 | Screwed BSP NPT Flanged | DN8–DN200 | Pharma Food Chemical | KELOR
Price on Request
- KRISHNA INDUSTRIES
- GST No. : 24AKLPP6499B1ZT
- Ahmedabad, Gujarat, India
- Manufacturer, Traders & Wholesale Supplier
- Year of Establishment : Since 1985
- Annual Turnover : Below Rs. 25 Crore Approx.
- Banker : APANI SAHAKARI BANK LIMITED
- Company CEO : Ruchin Panchal
- Constitution of Business : Proprietorship
- Leading Valve Supplier in India covering Maharashtra, Gujarat, Tamil Nadu, Karnataka, Telangana, Delhi NCR, West Bengal, Rajasthan, Madhya Pradesh, Uttar Pradesh, Punjab, Haryana, Andhra Pradesh, Odisha, Chhattisgarh, Jharkhand, Bihar, Kerala, Assam.
- Major Industrial Supply Cities: Ahmedabad, Vadodara, Rajkot, Surat, Mumbai, Pune, Thane, Nashik, Nagpur, Chennai, Coimbatore, Bengaluru, Hyderabad, Delhi, Noida, Gurugram, Faridabad, Kolkata, Jaipur, Indore, Bhopal, Lucknow, Kanpur, Ludhiana, Visakhapatnam.
Description
SS316L 2-Piece Ball Valve Supplier India | ASTM A351 CF3M | Full SS316L Trim | PTFE / RPTFE Seat | Class 150 / Class 300 | Screwed BSP NPT / Flanged ASME B16.5 | DN8–DN200 | Pharma / Food / Chemical / Welded SS Piping | KELOR
Supplier: Krishna Industries (KELOR) – Ahmedabad, Gujarat, India
Established: 2017 | GSTIN: 24AKLPP6499B1ZT | IEC: AKLPP6499B
MOQ: 10 Nos | Body: ASTM A351 CF3M SS316L | Trim: Full SS316L
Seat: PTFE / RPTFE | Pressure: Class 150 / Class 300 | Sizes: DN8–DN200
SS316L 2-Piece Ball Valve Supplier in India
Krishna Industries (KELOR), based in Ahmedabad, Gujarat, is a B2B supplier of SS316L 2-Piece Ball Valves — ASTM A351 CF3M SS316L body — full SS316L trim (SS316L ball, SS316L stem, SS316L seat ring) — PTFE seat (standard) / RPTFE seat (high pressure / high cycle) — blow-out proof stem — 2-piece body — lever operated / gear operated (DN100+) / pneumatic actuated / electric actuated — screwed BSP (IS 554) / screwed NPT (ASME B1.20.1) / flanged ASME B16.5 Class 150 / Class 300 — full bore — DN8 (¼”) to DN200 (8″) — API 598 tested — GST invoice — MOQ 10 Nos — Pan India dispatch from Ahmedabad.
SS316L (CF3M) is the low-carbon grade of SS316 — identical corrosion resistance and mechanical properties, with carbon content reduced to 0.03% maximum (vs 0.08% for standard SS316). This single difference eliminates weld sensitisation risk in SS welded piping, satisfies Indian GMP and international food safety specifications that explicitly require 316L, and provides full material traceability for pharma and food industry quality audits. Where the project specification, piping class, or GMP requirement states SS316L — CF3M — ASTM A270 316L — or simply “316L” — this valve is the compliant product.
SS316L vs SS316 — Why Low Carbon Matters
The “L” in SS316L stands for Low Carbon. It is not a marketing distinction — it is a metallurgical difference with specific engineering consequences that determine whether SS316 or SS316L is the correct specification for a given application.
| Property | SS316 (CF8M) | SS316L (CF3M) |
|---|---|---|
| Carbon Content | Maximum 0.08% C | ✅ Maximum 0.03% C — low carbon grade |
| Weld Sensitisation Risk | Present — carbon migrates to grain boundaries during welding heat — combines with chromium to form chromium carbide — depletes chromium in grain boundary zone — this zone loses corrosion resistance — intergranular corrosion (IGC) occurs in aggressive environments at the weld heat affected zone (HAZ) | ✅ Eliminated — 0.03% C is insufficient to form significant chromium carbide at grain boundaries during welding — chromium remains in solution throughout weld HAZ — corrosion resistance maintained after welding |
| Post-Weld Heat Treatment | Required for critical service welded SS316 piping to restore corrosion resistance — adds cost and time to fabrication | ✅ Not required — low carbon prevents sensitisation — welded SS316L piping does not require PWHT to maintain corrosion resistance |
| Corrosion Resistance | Excellent in non-welded service — same molybdenum content as 316L — equivalent performance for screwed or flanged (non-welded) connections | ✅ Equivalent to SS316 in non-welded service — superior in welded service due to sensitisation resistance |
| GMP / FDA Compliance | Not acceptable where specification explicitly states 316L — Indian pharma procurement teams will reject CF8M where CF3M is specified regardless of physical corrosion resistance equivalence | ✅ Compliant with GMP utility piping specifications citing ASTM A270 316L, CF3M, or SS316L — acceptable to USFDA, WHO GMP, EU GMP auditors — standard for Indian pharma API plant utility valve specification |
| Mechanical Strength | Slightly higher yield strength than 316L — relevant only at high temperature where 316L loses strength faster | Slightly lower yield at high temperature — not relevant for standard process conditions below 400°C |
| Cost | Slightly lower — standard grade | Slightly higher — low carbon grade premium — justified by weld sensitisation protection and GMP compliance value |
| Specify When | Screwed or flanged (non-welded) connections in corrosive service where GMP 316L requirement is not specified — cost-sensitive applications where engineer has confirmed no welding and accepted SS316 | ✅ Any welded SS piping — pharma and food GMP utility — any project specification citing 316L / CF3M / ASTM A270 316L — conservative specification for all SS corrosive service where sensitisation risk cannot be fully excluded |
2-Piece Body — Seat Access Without Removing Valve from Line
| Feature | 1-Piece Body | 2-Piece Body (This Page) | 3-Piece Body |
|---|---|---|---|
| Seat Access | ❌ No — ball and seats completely inaccessible — valve replaced entirely when seats wear | ✅ Yes — remove one end piece — access ball and both PTFE seats — replace seats — reassemble — for screwed end: without removing valve from line | ✅ Full — centre body slides out with ball and seats — all in-line — maximum maintenance access |
| Body Joints | ✅ None — fewest leak paths | One body joint — well-designed 2-piece SS316L valves maintain excellent joint integrity | Two body joints |
| Cost | ✅ Lowest | ✅ Medium — correct balance of seat accessibility and cost for SS process service | Highest — justified for BW/SW permanent weld connections |
| Specify When | Low pressure, low cycle utility where valve is replaced rather than maintained | ✅ Standard SS316L process ball valve — screwed or flanged connections — pharma, food, chemical — seat inspection and replacement without full valve removal — most Indian SS process ball valve specifications | SW or BW permanent weld connections in high pressure service where cutting weld to replace valve is expensive |
PTFE vs RPTFE Seat — Selection Guide
| Property | Virgin PTFE Seat (Standard) | RPTFE Seat (Reinforced) |
|---|---|---|
| Composition | 100% PTFE — softest, most conforming seat | PTFE reinforced with glass fibre or carbon filler — harder and more dimensionally stable |
| Sealing | ✅ Class VI zero leakage — best sealing due to soft conforming contact with ball surface — standard for most SS316L process service | Class VI zero leakage — slightly less conforming than virgin PTFE but excellent sealing in all standard service conditions |
| Cold Flow | Higher — seat deforms under sustained high pressure — can cause valve to bind after extended time at Class 300 pressure | ✅ Lower — filler reinforcement reduces cold flow — better dimensional stability under sustained high pressure — specify for Class 300 service |
| Wear Resistance | Standard — adequate for normal process cycling | ✅ Better — specify for high cycle frequency applications (automated valves cycling multiple times per day) |
| Specify When | ✅ Standard process service — Class 150 — moderate cycle frequency — pharma GMP utility, food processing, chemical utility — most SS316L ball valve applications | ✅ Class 300 high pressure — high cycle automated service — pneumatic or electric actuated valves cycling frequently — where PTFE cold flow has caused valve binding in previous installations |
Technical Specifications
| Parameter | Specification |
|---|---|
| Body Design | 2-piece — one main body + one end piece — bolted body joint |
| Body Material | ASTM A351 CF3M (SS316L cast) — low carbon 0.03% C max |
| Ball Material | SS316L (full SS316L trim) |
| Seat Material | Virgin PTFE (standard — Class VI zero leakage) / RPTFE (high pressure / high cycle) |
| Stem Material | SS316L — blow-out proof design — anti-static device on request (ATEX) |
| Seat Ring | SS316L |
| Body Seal / Stem Packing | PTFE (standard) / Graphite (high temp above 180°C) |
| Body Bolts | SS316 (standard) |
| End Connections | Screwed BSP taper IS 554 / Screwed NPT ASME B1.20.1 / Flanged ASME B16.5 Class 150 / Flanged ASME B16.5 Class 300 |
| Bore | Full bore (standard) / Reduced bore on request |
| Size Range | DN8 (¼”) to DN200 (8″) — DN8–DN50 most common screwed, DN15–DN200 flanged |
| Pressure Rating | Class 150 (standard) / Class 300 |
| Temperature Range | -196°C to +200°C (PTFE seat) — cryogenic capable |
| Operation | Lever (standard DN8–DN80) / Gear (DN100+) / Pneumatic actuated / Electric actuated |
| Testing Standard | API 598 — shell test and seat leakage test (zero leakage — Class VI) |
| Material Certification | MTC — ASTM A351 CF3M heat certificate — chemical composition + mechanical properties with heat number |
| MOQ | 10 Nos |
| HSN Code | 84818090 |
Applications in Indian Industries
- Pharmaceutical API plants — GMP utility piping — SS316L CF3M screwed BSP DN15–DN50 — purified water (PW) and water for injection (WFI) utility branch isolation, nitrogen utility, compressed air utility, clean steam utility — GMP utility piping specifications for Indian API plants (both domestic and USFDA/EU GMP approved plants) explicitly require SS316L — CF3M body with MTC supplied for GMP documentation — full SS316L trim for material traceability audit — PTFE seat for WFI and clean steam compatibility — pharma clusters: Ahmedabad, Hyderabad, Baddi, Vapi, Ankleshwar
- Food and beverage manufacturing — SS316L flanged Class 150 DN25–DN100 — utility piping isolation on food processing lines — cooling water, CIP supply and return, steam utility, chilled water on product-adjacent pipework — FSSC 22000 and FSSAI compliance for food contact environment — SS316L preferred over SS316 where GMP food safety auditors review material certifications — full SS316L trim and MTC documentation for FSSC audit file
- Welded SS process piping — chemical plants — SS316L flanged Class 150/300 DN25–DN150 — chemical process lines in Ankleshwar, Vapi, and Dahej GIDC where SS piping is site-welded — SS316L mandatory to prevent sensitisation in welded joints adjacent to valves — chloride-containing chemical process, organic acid service, aggressive solvent handling — CF3M body prevents HAZ intergranular corrosion at flanged joint welds
- Cryogenic service — liquid nitrogen and LNG — SS316L flanged Class 150/300 DN15–DN100 — liquid nitrogen supply isolation, LNG vaporiser inlet and outlet, cryogenic storage vessel connections — SS316L rated to -196°C — austenitic SS maintains toughness at cryogenic temperatures unlike CS which becomes brittle — PTFE seat compatible with cryogenic temperatures
- Offshore and coastal industrial — SS316L flanged Class 150/300 DN25–DN150 — seawater cooling utility, marine process lines, coastal chemical plant — chloride atmosphere and seawater contact — SS316L with low carbon provides better crevice corrosion resistance in chloride-rich salt air environments than standard SS316 — full SS316L trim reduces galvanic corrosion risk in mixed-material installations
Related Products — Krishna Industries (KELOR)
- SS Ball Valve — SS304 / SS316 — broader SS ball valve range including SS304 (CF8) and standard SS316 (CF8M) — for applications where low carbon 316L is not specifically required and standard SS316 is acceptable
- Three Piece Ball Valve — 3-piece body for SW or BW permanent weld connections — where 3-piece maintenance advantage over 2-piece is required
- Forged 3-Piece Ball Valve — Class 800# — ASTM A105 forged CS — Class 800# — for high pressure small bore service where SS316L is not the body material specification
- SS Needle Valve — SS316 / SS316L instrument root valves — pairs with SS316L ball valve on utility line isolation in pharma and food GMP utility piping systems
- SS Butterfly Valve — SS316 body butterfly valve for larger bore DN150+ isolation where SS316L ball valve cost at large bore is prohibitive
Frequently Asked Questions
1. What is the difference between SS316 and SS316L and when must I specify SS316L?
SS316L (CF3M) has a maximum carbon content of 0.03% versus 0.08% for standard SS316 (CF8M). This low carbon content prevents weld sensitisation — the process by which carbon migrates to grain boundaries during welding and depletes chromium, creating a zone of reduced corrosion resistance in the weld heat affected zone. Specify SS316L when: the valve will be installed in a welded SS piping system where adjacent welds are made after valve installation; the project specification, piping class document, or GMP requirement explicitly states SS316L, CF3M, or ASTM A270 316L; the application is pharma GMP utility where 316L is standard for all utility valves regardless of welding; or where the conservative specification is preferred to eliminate any sensitisation risk. For purely screwed or flanged (non-welded) connections in non-GMP service where the specification accepts SS316, standard CF8M SS316 is acceptable and slightly lower cost.
2. Is a 2-piece ball valve seat accessible without removing the valve from the line?
For screwed end (BSP/NPT) 2-piece ball valves — yes. Close the valve, depressurise, unscrew the end piece from the main body (end piece has external thread), remove end piece, slide out ball, replace PTFE or RPTFE seats, reassemble. The valve body remains threaded into the pipeline throughout — no disturbance of pipeline connections. For flanged end 2-piece ball valves — one flanged joint must be unbolted to remove the end piece, which means partial disruption of the piping. If fully in-line seat replacement without any pipeline disturbance is required for flanged service, specify a 3-piece body instead.
3. What MTC documentation is provided for GMP and food safety audits?
Material Test Certificate (MTC) for ASTM A351 CF3M (SS316L) body — shows chemical composition (confirming carbon ≤0.03%, molybdenum 2–3%, chromium 16–18%) and mechanical properties (yield strength, tensile strength, elongation) with heat number traceability. The MTC confirms the body material is genuine CF3M SS316L and not standard CF8M SS316 — this is the document GMP auditors and food safety compliance teams request to verify material specification compliance. MTC is supplied on request — specify “MTC required — GMP service” at order stage.
4. Can SS316L ball valves be used for cryogenic service?
Yes — austenitic stainless steel SS316L maintains toughness and ductility down to -196°C (liquid nitrogen temperature). PTFE seats are also rated for cryogenic service. For cryogenic service below -100°C, specify: Class 150 or Class 300 flanged (not screwed — screwed joints can leak at cryogenic temperatures due to differential thermal contraction), extended bonnet to keep stem packing above the cryogenic zone (on request for very low temperature service), and confirm actuator selection is rated for operating temperature if pneumatic or electric actuated.
5. What is the MOQ?
MOQ is 10 Nos. Pharma and food plant project orders — typically 50 to 1,000+ Nos across sizes and end connection types — with API 598 test certificate, CF3M MTC for GMP audit documentation, dimensional inspection report, and GST invoice. WhatsApp body material (confirm SS316L CF3M), seat material (PTFE/RPTFE), end connection type, size list, pressure class, operator type, and quantity for project pricing within 2 hours.
Conclusion
Krishna Industries (KELOR) supplies SS316L 2-Piece Ball Valves for pharmaceutical GMP utility, food and beverage, welded SS process piping, chemical plant, and cryogenic service — ASTM A351 CF3M SS316L body — full SS316L trim (ball + stem + seat ring) — PTFE (standard) / RPTFE (high pressure / high cycle) seat — 2-piece body (seat accessible without removing valve from line for screwed connections) — lever / gear / pneumatic actuated / electric actuated — screwed BSP (IS 554) / screwed NPT / flanged ASME B16.5 Class 150 / Class 300 — full bore — DN8 (¼”) to DN200 (8″) — API 598 tested — CF3M MTC for GMP audit supplied on request — GST invoice — Pan India dispatch from Ahmedabad. WhatsApp end connection type, size list, pressure class, and quantity for project pricing within 2 hours.



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