SS304 3-Piece Screwed Ball Valve supplier in Ahmedabad, Gujarat. Investment cast ASTM A351 CF8 (SS304) body — SS304 ball and stem — virgin PTFE seat (Class VI zero leakage, FDA 21 CFR 177.1550 food safe) — 3-piece body: centre body…
SS304 3-Piece Screwed Ball Valve Supplier India | Investment Cast CF8 | PTFE Seat | BSP NPT | DN8–DN100 | In-Line Seat Replacement | Food Dairy 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
SS304 3-Piece Screwed Ball Valve Supplier India | Investment Cast ASTM A351 CF8 | SS304 Ball & Stem | PTFE Seat | BSP / NPT | DN8–DN100 | Food / Dairy / Chemical / DM Water | KELOR
Supplier: Krishna Industries (KELOR) – Ahmedabad, Gujarat, India
Established: 2017 | GSTIN: 24AKLPP6499B1ZT | IEC: AKLPP6499B
MOQ: 10 Nos | Body: Investment Cast ASTM A351 CF8 (SS304)
Trim: SS304 Ball + Stem | Seat: Virgin PTFE | Sizes: DN8–DN100
SS304 3-Piece Screwed Ball Valve Supplier in India
Krishna Industries (KELOR), based in Ahmedabad, Gujarat, is a B2B supplier of SS304 3-Piece Screwed Ball Valves — investment cast ASTM A351 CF8 (SS304) body — SS304 ball and stem — virgin PTFE seat (Class VI zero leakage, FDA 21 CFR 177.1550 food safe) — 3-piece body with removable centre — screwed BSP taper (IS 554) and NPT (ASME B1.20.1) — lever operated — full bore — DN8 (¼”) to DN100 (4″) — API 598 tested — GST invoice — MOQ 10 Nos — Pan India dispatch from Ahmedabad.
The 3-piece body design allows the centre body containing the ball and PTFE seats to be removed completely while both end pieces remain threaded in the pipeline — seat replacement in 15–20 minutes without unscrewing any pipeline connections, without thread sealant reapplication, and without any disturbance to adjacent piping. For food, dairy, beverage, and chemical plants where PTFE seat replacement is routine maintenance due to CIP chemical cycling, this in-line maintenance capability is the primary reason to specify 3-piece over 1-piece or 2-piece for screwed SS304 service.
3-Piece Body — In-Line Seat Replacement for Screwed Connections
The maintenance advantage of 3-piece body design is most valuable in screwed (BSP/NPT) pipeline connections — the configuration where this SS304 valve is designed for.
| Seat Replacement Procedure | 1-Piece SS304 Screwed Valve | 2-Piece SS304 Screwed Valve | 3-Piece SS304 Screwed Valve (This Page) |
|---|---|---|---|
| Pipeline Disturbance | ❌ Full removal — entire valve unscrewed from pipeline — both pipeline connections disturbed — adjacent piping may need to be moved to create clearance for valve rotation | One end piece unscrewed — one pipeline connection disturbed — still requires thread sealant reapplication on removed end | ✅ Zero — both end pieces remain threaded in pipeline throughout — only four body bolts undone — no pipeline connections touched |
| Time Required | 30–60 minutes — unscrewing old valve, fitting new valve, thread sealant application, cure time, pressure test | 20–40 minutes — removing end piece, replacing seats, reassembling, pressure test | ✅ 15–20 minutes — undo four bolts, slide out centre body, replace PTFE seats, reassemble, pressure test — fastest in-line maintenance of any screwed ball valve design |
| Thread Sealant Reapplication | Required — both ends — sealant cure time before pressurising | Required — removed end piece — sealant cure time | ✅ Not required — no threads disturbed — body bolts are metal-to-metal with gasket seal |
| Maintenance Cost | Replace entire valve — full valve cost plus labour | Seat kit only — but end piece handling adds labour | ✅ Seat kit only — minimum labour — minimum downtime — lowest maintenance cost per cleaning cycle |
| Specify When | Low cycle utility where valve is replaced rather than maintained | Moderate cycle where occasional seat inspection needed | ✅ Food, dairy, beverage, CIP chemical systems, chemical dosing lines — where PTFE seats require periodic replacement and minimising downtime and pipeline disturbance is important |
Investment Cast Body — Surface Finish Advantage
The investment casting process (lost wax casting) produces a significantly better internal surface finish than sand casting — the manufacturing method used for most lower-cost SS ball valves in the Indian market.
| Property | Sand Cast SS Body | Investment Cast SS Body (This Valve) |
|---|---|---|
| Internal Surface Finish | Ra 6.3–12.5 micron — rough — visible surface irregularities — product retention zones in food and dairy service | ✅ Ra 1.6–3.2 micron as-cast — smooth — minimal product retention — easier to clean — suitable for food contact environment |
| Dimensional Accuracy | ±0.5mm typical — more machining required to achieve final dimensions | ✅ ±0.1mm typical — less machining — more consistent bore dimensions across production batches |
| Material Density | More potential for casting porosity — occasional voids in wall | ✅ Better material density — fewer internal voids — more consistent pressure integrity |
| Body Geometry | Simpler shapes — complex valve body geometry difficult to achieve cleanly | ✅ Complex geometry achievable — full bore flow path smoothly formed — no sharp edges or steps in flow path |
| Food and Dairy Relevance | Rough internal surface traps product — bacteria can colonise surface irregularities — CIP effectiveness reduced on rough surfaces | ✅ Smooth internal surface — CIP cleaning solution contacts full surface — bacteria cannot colonise smooth investment cast surface as readily — better hygienic standard |
SS304 vs SS316 vs SS316L — Which Grade for Your Application
| Grade | Key Property | Specify For | Not Suitable For |
|---|---|---|---|
| SS304 (CF8) This page |
18% Cr, 8% Ni — no molybdenum — good general corrosion resistance | ✅ DM water, softened water, food processing (non-chloride media), dairy (milk, cream, whey), beverage (juice, beer, soft drink), pharma non-GMP utility, mild acid/alkali (check chemical resistance table), general SS screwed utility | Seawater, chloride-containing media, coastal salt air environment, concentrated acid, chloride >200 ppm at elevated temperature — specify SS316 or SS316L for these |
| SS316 (CF8M) SS Ball Valve page |
16-18% Cr, 10-14% Ni, 2-3% Mo — molybdenum adds chloride resistance | Chloride-containing service, seawater cooling utility, coastal industrial, aggressive chemical plant utility, offshore | Welded SS piping where sensitisation is a concern — specify SS316L instead |
| SS316L (CF3M) SS316L Ball Valve page |
Same as SS316 with max 0.03% C — prevents weld sensitisation | ✅ Welded SS piping systems, pharma GMP utility (PW, WFI, clean steam), food contact GMP service, USFDA/EU GMP compliant plants specifying 316L explicitly | Cost-sensitive non-GMP applications where SS316 or SS304 is acceptable — SS316L carries small cost premium |
Technical Specifications
| Parameter | Specification |
|---|---|
| Body Design | 3-piece — two end pieces + removable centre body — four body bolts |
| Body Manufacturing | Investment cast (lost wax process) — smooth internal surface Ra 1.6–3.2 micron |
| Body Material | ASTM A351 CF8 (SS304) — 18% Cr, 8% Ni |
| Ball Material | SS304 (standard trim) |
| Stem Material | SS304 — blow-out proof design |
| Seat Material | Virgin PTFE — Class VI zero leakage — FDA 21 CFR 177.1550 food safe — -196°C to +200°C |
| Body Seal | PTFE stem packing |
| Body Bolts | SS304 (standard) |
| End Connection | Screwed BSP taper (IS 554 / BS 21) / Screwed NPT (ASME B1.20.1) — specify at order |
| Bore | Full bore |
| Size Range | DN8 (¼”) to DN100 (4″) — DN15–DN50 most common |
| Operation | Lever operated — quarter turn (90°) — stainless steel lever |
| Testing Standard | API 598 — shell test and seat leakage test (zero leakage — Class VI) |
| MOQ | 10 Nos |
| HSN Code | 84818090 |
Applications in Indian Industries
- Food processing plants — Gujarat, Maharashtra, Punjab — SS304 CF8 screwed BSP DN15–DN50 — tomato, fruit, vegetable processing lines — utility water and mild chemical dosing isolation — investment cast smooth surface for easy CIP cleaning — 3-piece body for quarterly PTFE seat replacement during scheduled maintenance shutdowns — food safe PTFE seat FDA 21 CFR compliant
- Dairy plants — Gujarat Cooperative Milk Marketing Federation (Amul), Karnataka Milk Federation — SS304 CF8 screwed BSP DN15–DN50 — milk and CIP utility line isolation — 3-piece body allows seat replacement between production shifts without pipeline disturbance — investment cast smooth body prevents milk protein deposits in surface irregularities — CIP chemicals (NaOH, nitric acid, peracetic acid) contact PTFE seat — PTFE resistant to all standard dairy CIP chemicals
- Beverage manufacturing — breweries, soft drink plants, juice plants — SS304 CF8 screwed BSP DN15–DN50 — process water, CO2 utility, cleaning chemical isolation — 3-piece body seat replacement during weekly CIP maintenance — smooth investment cast body for hygienic service — full bore for minimum pressure drop in carbonated beverage lines where dissolved CO2 release is a concern at flow restrictions
- DM water and utility water systems — industrial plants — SS304 CF8 screwed BSP DN15–DN80 — demineralised water distribution isolation valves — DM water is highly corrosive to carbon steel and brass — SS304 is the minimum specification for DM water service — 3-piece body economical at small bore screwed DM water utility connections — widely used in Indian pharmaceutical, chemical, and power plant DM water utility piping
- Chemical dosing and metering systems — SS304 CF8 screwed BSP or NPT DN8–DN50 — chemical injection point isolation valves on dosing skids — water treatment chemical dosing (coagulant, flocculant, disinfectant), boiler chemical dosing (antiscalant, corrosion inhibitor), cooling tower chemical dosing — mild chemical compatibility of SS304 adequate for most Indian water treatment chemical service — 3-piece body allows full inspection and cleaning of ball surface during chemical skid maintenance
Related Products — Krishna Industries (KELOR)
- SS316L 2-Piece Ball Valve — SS316L (CF3M) body — 2-piece — Class 150/300 screwed and flanged — for GMP pharma utility, welded SS piping, chloride service where SS304 is insufficient
- SS Ball Valve — SS304 / SS316 — broader SS ball valve overview including flanged end options and actuated configurations
- Single Piece Screwed Ball Valve — SS304 / SS316 1-piece screwed — for low cycle utility service where seat replacement is not a maintenance requirement and lowest cost is the priority
- SS Needle Valve — instrument root valves on the same SS304 utility piping systems — pairs with SS304 ball valve for isolation and needle valve for instrument tapping
- Y Strainer — install upstream of SS304 ball valve on chemical dosing lines and DM water connections — removes particles that erode PTFE seat
Frequently Asked Questions
1. Why specify 3-piece body for screwed SS304 ball valves in food and dairy service?
In food, dairy, and CIP systems, PTFE ball valve seats are exposed to repeated cycles of CIP cleaning chemicals — caustic soda (NaOH), nitric acid, peracetic acid, and sanitising agents. While PTFE is chemically resistant to all these, the repeated thermal and chemical cycling eventually degrades seat sealing performance — seat replacement every 6–12 months is standard maintenance in intensive CIP service. With a 1-piece body, seat replacement means removing the entire valve from the screwed pipeline — a 30–60 minute job per valve with thread sealant reapplication and cure time. With a 3-piece body, four body bolts are undone, the centre body slides out, seats are replaced, and the valve is back in service in 15–20 minutes with zero pipeline disturbance. In a food plant with 50–200 SS304 ball valves requiring annual seat replacement, the labour cost saving from 3-piece design over 1-piece is significant.
2. Is investment cast SS304 suitable for food contact service?
Yes — ASTM A351 CF8 investment cast SS304 is suitable for food contact service. The investment cast body provides Ra 1.6–3.2 micron internal surface finish, which is significantly smoother than sand cast SS bodies. The PTFE seat is FDA 21 CFR 177.1550 compliant — food safe. For Indian FSSAI compliance and for export market food safety audits (FSSC 22000, BRC), the combination of SS304 CF8 investment cast body + PTFE food-safe seat + smooth internal surface finish meets the material requirements for non-product-contact utility isolation valves (cooling water, steam, CIP chemical supply) in food plant applications. For product-contact valves (directly in food product flow path), consult regarding ASME BPE standard hygienic valves which have additional crevice-free design requirements beyond standard 3-piece ball valves.
3. What is the difference between BSP and NPT thread and which should I order?
BSP (British Standard Pipe — BSPT taper per IS 554 / BS 21) is the standard thread for all Indian-manufactured equipment, piping, and fittings. Order BSP for all standard Indian industrial, food, dairy, and chemical plant applications. NPT (National Pipe Taper per ASME B1.20.1) is the American standard — order NPT only when the connected equipment nozzle or fitting is NPT threaded, which occurs on US-origin equipment, ASME-code projects, or exported equipment destined for NPT markets. BSP and NPT threads are not interchangeable — mating BSP with NPT damages both threads and creates a leak point. Identify the thread standard on the connected fitting before ordering.
4. Can this valve be upgraded to SS316 or SS316L?
The standard product has SS304 (CF8) investment cast body and SS304 ball and stem. For chloride service, aggressive chemical, GMP pharmaceutical, or coastal industrial applications where SS316 or SS316L is required, refer to the SS316L 2-piece ball valve page for the CF3M low-carbon SS316L option. The SS304 3-piece screwed valve is specifically positioned for non-chloride, non-GMP SS screwed utility service where SS304 is the correct and more economical specification.
5. What is the MOQ?
MOQ is 10 Nos. Food plant and dairy project orders — 50 to 500+ Nos across sizes — with API 598 test certificate, CF8 MTC on request, and GST invoice. WhatsApp thread type (BSP/NPT), size list, and quantity for bulk pricing within 2 hours.
Conclusion
Krishna Industries (KELOR) supplies SS304 3-Piece Screwed Ball Valves for food processing, dairy, beverage, DM water, chemical dosing, and pharmaceutical non-GMP utility applications — investment cast ASTM A351 CF8 (SS304) body — SS304 ball and stem — virgin PTFE seat (Class VI zero leakage, FDA 21 CFR food safe) — 3-piece removable centre body for in-line seat replacement without disturbing screwed pipeline connections — screwed BSP (IS 554) and NPT (ASME B1.20.1) — lever operated — full bore — DN8 (¼”) to DN100 (4″) — API 598 tested — GST invoice — Pan India dispatch from Ahmedabad. WhatsApp thread type, size list, and quantity for bulk pricing within 2 hours.



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