Stainless Steel Butterfly Valve | CF8 CF8M SS304 SS316 Body | EPDM PTFE Seat | Food Pharma Chemical | Supplier India

Description

Stainless Steel Butterfly Valve Supplier India | CF8 SS304 / CF8M SS316 Body | EPDM PTFE Seat | Wafer & Lug | PN16 Class 150 | Food Pharma Chemical | KELOR

Supplier: Krishna Industries (KELOR) – Ahmedabad, Gujarat, India
Established: 2017 | GSTIN: 24AKLPP6499B1ZT | IEC: AKLPP6499B
MOQ: 10 Nos | Body: CF8 (SS304) / CF8M (SS316)
Standard: EN 593 / API 609 Category A | Sizes: DN50–DN600

Stainless Steel Butterfly Valve Supplier in India

Krishna Industries (KELOR), based in Ahmedabad, Gujarat, is a B2B supplier of Stainless Steel Butterfly Valves — CF8 (SS304) and CF8M (SS316) cast stainless steel body — SS304/SS316 disc — EPDM and PTFE seat — SS316 stem — wafer and lug type — DN50 to DN600 — PN10 / PN16 / Class 150 — EN 593 / API 609 Category A — API 598 tested — GST invoice — MOQ 10 Nos — Pan India dispatch from Ahmedabad.

The stainless steel butterfly valve — CF8 or CF8M body — is specified when the entire valve body must be stainless steel, not just the disc and stem. All standard butterfly valves on the market use a Cast Iron (CI) or WCB carbon steel body with a stainless steel disc inside — the body itself is not stainless. For food and beverage hygiene, pharmaceutical GMP, DM water purity, coastal salt atmosphere, chemical plant piping class compliance, and CIP service, the CI or WCB body is not acceptable — the complete SS body valve is required.

Why SS Body — Not Just SS Disc

CF8 vs CF8M — Which Grade for Your Application

Seat Material Guide — EPDM vs PTFE for SS Butterfly Valve

Technical Specifications

Applications in Indian Industries

• Food and beverage — dairy, brewery, beverage bottling — CF8 SS304 PTFE or EPDM — process water distribution, CIP chemical lines, ingredient handling headers — SS body mandatory for food contact compliance — DN50–DN150 most common size range
• Pharmaceutical — purified water (PW) and WFI distribution — CF8M SS316 PTFE — pump discharge headers, distribution loop isolation, utility water headers — GMP compliant SS316 body — PTFE seat FDA compliant, no extractables
• Chemical plants — Gujarat belt (Ankleshwar, Vapi, Dahej) — CF8M SS316 PTFE — process chemical headers where piping class specifies SS body, external body in corrosive chemical atmosphere, aggressive media contact with body bore
• Coastal industrial plants — Mumbai, Chennai, Vizag, Kochi, Mangalore — CF8 or CF8M EPDM — utility water, HVAC, fire water — salt-laden coastal air corrodes CI body externally within 1–2 years — SS body immune to salt atmosphere
• Power plant DM water systems — CF8 or CF8M EPDM — demineralised water distribution headers, condensate polishing water, DM water storage and transfer — SS body prevents iron contamination of DM water quality
• Semiconductor and electronics manufacturing — CF8M SS316 PTFE — ultrapure water (UPW) distribution, chemical distribution headers — SS body for purity, PTFE seat for chemical compatibility
• Offshore and marine utility — CF8M SS316 EPDM or PTFE — seawater cooling, fire water, utility water on offshore platforms and marine vessels — CF8M mandatory for seawater chloride resistance
• ETP/STP with SS piping class — CF8 EPDM — where chemical dosing area piping class specifies SS body — ferric chloride, polymer, acid/alkali dosing area headers

Related Products — Krishna Industries (KELOR)

• Teflon Lined Butterfly Valve — CI/WCB Body PTFE Seat — for process plant chemical service where CI or WCB body is acceptable but PTFE seat required — Class 150/300
• PN16 Butterfly Valve — CI Body EPDM — most economical for general water and utility service where SS body not required
• CF8 CF8M Dual Plate Check Valve — SS body NRV to pair with SS butterfly valve on pharma, chemical, and coastal pump stations
• Gear Operated Butterfly Valve — for DN200+ where lever torque is excessive
• Lug Type Butterfly Valve — CI Body — for end-of-line service where SS body not required

Frequently Asked Questions

1. What is the difference between a stainless steel butterfly valve and a standard butterfly valve with SS disc?

A standard butterfly valve has a Cast Iron (CI) or WCB carbon steel body with a stainless steel disc inside. The body — which forms the outer casing and the bore that contacts the fluid — is not stainless steel. A stainless steel butterfly valve has a CF8 (SS304) or CF8M (SS316) cast stainless steel body throughout. This matters for food and pharma hygiene compliance, DM water purity, CIP chemical resistance, coastal and marine corrosion, and chemical plant piping class compliance where the specification says “SS body” — not just “SS disc.”

2. CF8 or CF8M — which grade for pharmaceutical purified water?

CF8M (SS316) is the standard for pharmaceutical purified water (PW) and WFI distribution — the additional 2% molybdenum improves resistance to chloride pitting from trace chlorides in water treatment and provides better resistance to the cleaning agents used in pharma CIP cycles. CF8 (SS304) is acceptable for non-critical pharma utility water but CF8M is the GMP standard specification for PW and WFI loops.

3. Is EPDM or PTFE seat standard for food and beverage service?

Both are FDA compliant. EPDM is standard for general water service and steam CIP. PTFE is preferred where chemical CIP cleaners (NaOH, HNO3, citric acid, peracetic acid) are used — PTFE handles repeated CIP cycles without degradation better than EPDM. For dairy and food beverage plants with frequent hot caustic and acid CIP, specify PTFE seat with CF8 body. For general food process water lines without aggressive CIP, EPDM is acceptable and more economical.

4. Why does CI body corrode in demineralised water?

Demineralised water has very low ionic content and low conductivity — it is chemically aggressive toward metals because it aggressively dissolves ions to reach equilibrium. Cast iron in DM water releases iron ions into the water, causing brown staining, increasing iron content above acceptable limits for boiler feed or process use, and progressively corroding the valve body. Stainless steel (CF8 or CF8M) is passive in DM water — it does not dissolve iron ions and does not contaminate water quality. This is why SS body is mandatory for DM water service.

5. What is the MOQ?

MOQ is 10 Nos. Food plant, pharma, or chemical project orders — 20 to 200+ Nos across sizes — with material test reports (ASTM A351 CF8/CF8M), API 598 test certificates, and GST invoice. Specify CF8 or CF8M, seat material (EPDM or PTFE), wafer or lug, and size list for project pricing within 2 hours.

Conclusion

The Stainless Steel Butterfly Valve supplied by Krishna Industries (KELOR) is the full SS body butterfly valve for food and beverage, pharmaceutical GMP, chemical plant SS piping class, coastal and marine, DM water, and CIP service — CF8 (SS304) and CF8M (SS316) cast stainless steel body — SS304/SS316 disc — EPDM and PTFE seat — wafer and lug type — DN50 to DN600 — PN10 / PN16 / Class 150 — EN 593 / API 609 Category A — API 598 tested — MTR on request. GST invoice, Pan India dispatch from Ahmedabad. WhatsApp body grade (CF8 or CF8M), seat material, body style, size list, and quantity for bulk pricing within 2 hours.