Email:
[email protected]
Phone:
+91 93135 43530
Address:
133/1 Ground, Mansuri Block, Opp. Dudheshwar Water Tank, Ahmedabad-380004, Gujarat, India
Supplier: Krishna Industries (KELOR) – Ahmedabad, Gujarat, India
Established: 2017 | GSTIN: 24AKLPP6499B1ZT | IEC: AKLPP6499B
MOQ: 10 Nos | Body: WCB / SS304 / SS316
Class: 150# (ASME B16.5) | Sizes: DN15–DN100 | Design: 3-Piece Full Bore
3 Piece Flanged Ball Valve Supplier in India — Class 150#
Krishna Industries (KELOR), based in Ahmedabad, Gujarat, supplies 3 Piece Ball Valves with Flanged End Class 150# — WCB (ASTM A216) / SS304 (CF8 ASTM A351) / SS316 (CF8M ASTM A351) body — SS316 ball — PTFE / RPTFE seat — flanged ASME B16.5 Class 150 raised face (RF) — full bore — lever operated (DN15–DN50) and gear operated (DN65–DN100) — DN15 (½”) to DN100 (4″) — API 598 tested — GST invoice — MOQ 10 Nos — Pan India dispatch from Ahmedabad.
The 3-piece flanged ball valve provides the key operational advantage of in-line maintenance — the centre body with ball and seats can be removed for inspection and seat replacement while both flanged end connections remain bolted to the pipeline. Furthermore, this eliminates the need to break flange joints and disturb the pipeline for routine ball valve maintenance. Consequently, the 3-piece flanged configuration is the standard specification for process plant ball valves in chemical, pharma, food, and industrial piping where maintenance access without pipeline disturbance is a priority.
Why 3-Piece Body — The In-Line Maintenance Advantage
| Feature | 3-Piece Flanged Ball Valve | 2-Piece Flanged Ball Valve |
|---|---|---|
| In-Line Maintenance | ✅ Centre body slides out — ball and seats accessible — both end flanges remain bolted to pipeline — no pipeline disturbance | End piece removal disturbs one pipeline flange — more disruptive for seat replacement |
| Seat Replacement | ✅ PTFE seats replaced in-line — centre body removed — new seats installed — centre body reassembled — valve back in service without flange joint disturbance | Valve must be partially removed from pipeline — flange joint broken — gasket replaced — more time and cost |
| Inspection Access | ✅ Ball surface, seat condition, and body interior fully accessible after centre body removal — maintenance team can inspect without valve removal | Limited inspection access without full valve removal |
| Downtime | ✅ Shorter — in-line maintenance means faster return to service — standard for critical process plant ball valves where minimising downtime is priority | Longer — flange joint disturbance requires new gasket, retorquing, and pressure testing |
| Cost | Higher — three body components — premium justified for critical service lines | ✅ Lower — standard for non-critical general service where in-line maintenance is not required |
| Specify When | ✅ Critical process plant piping — chemical, pharma, food — where frequent maintenance cycles are expected — where minimising downtime has high operational value | General utility service — infrequent maintenance — cost-sensitive applications |
Body Material Selection
| Body Material | Standard | Specify For | Not For |
|---|---|---|---|
| WCB (Carbon Steel) | ASTM A216 WCB | ✅ Steam, oil, gas, non-corrosive process — most economical Class 150 flanged 3-piece ball valve — industrial process plant general service | Corrosive chemical, seawater, DM water — CS corrodes in these services |
| SS304 (CF8) | ASTM A351 CF8 | DM water, mild chemical, food non-chloride, pharma non-GMP utility — corrosion resistant at lower cost than SS316 | Chloride service, seawater, aggressive chemical — specify SS316 |
| SS316 (CF8M) | ASTM A351 CF8M | ✅ Corrosive chemical, chloride service, pharmaceutical process, food GMP, seawater — 2-3% Mo provides chloride pitting resistance — standard SS grade for Indian chemical and pharma 3-piece flanged ball valves | GMP pharma welded piping where sensitisation is a concern — specify SS316L |
Technical Specifications
| Parameter | Specification |
|---|---|
| Valve Type | 3-piece ball valve — full bore — flanged end |
| Body Material | WCB (ASTM A216) / CF8 SS304 (ASTM A351) / CF8M SS316 (ASTM A351) |
| Ball Material | SS316 (standard) / SS304 |
| Seat Material | Virgin PTFE (standard — Class VI zero leakage) / RPTFE (high pressure / high cycle) |
| Stem Material | SS316 — blow-out proof |
| End Connection | Flanged ASME B16.5 Class 150 — raised face (RF) standard |
| Bore | Full bore — pipeline bore maintained through valve |
| Size Range | DN15 (½”) to DN100 (4″) |
| Pressure Class | Class 150# (ASME B16.5) — approximately 20 bar at ambient temperature |
| Temperature Range | -20°C to +180°C (PTFE seat) / -20°C to +200°C (RPTFE seat) |
| Operation | Lever (DN15–DN50 standard) / Gear operated handwheel (DN65–DN100) |
| Face to Face | ASME B16.10 |
| Testing Standard | API 598 — shell test and seat leakage test |
| MOQ | 10 Nos |
| HSN Code | 84818090 |
Standard Dimensions — Flanged End Class 150#
| Size (inch) | Size (DN) | Face to Face (mm) | Flange OD (mm) | Bolt Circle Dia (mm) |
|---|---|---|---|---|
| ½” | DN15 | 130 | 95 | 70 |
| 1″ | DN25 | 160 | 105 | 80 |
| 2″ | DN50 | 200 | 150 | 110 |
| 4″ | DN100 | 250 | 200 | 160 |
Applications in Indian Industries
Chemical Plants — Corrosive Process Isolation
SS316 CF8M body Class 150 flanged 3-piece DN25–DN100. Critical corrosive chemical process line isolation where frequent seat maintenance is expected due to chemical attack on PTFE. Furthermore, 3-piece in-line maintenance minimises process shutdown time for seat replacement on critical chemical plant process lines. Standard for Indian chemical plant projects at Ankleshwar, Vapi, and Dahej GIDC.
Pharmaceutical Utility Piping
SS316 CF8M body Class 150 flanged 3-piece DN15–DN80. Purified water (PW), WFI, and clean steam utility isolation where GMP audit requires in-line maintainability documentation. Moreover, the 3-piece body allows seat replacement and ball inspection without breaking the flanged joint — reducing contamination risk during maintenance. MTC (ASTM A351 CF8M) supplied with every order for GMP documentation.
Food Processing — CIP Line Isolation
SS316 CF8M body Class 150 flanged 3-piece DN25–DN80. Food process line isolation and CIP (clean-in-place) circuit block valves. In-line maintenance allows PTFE seat inspection and replacement during scheduled CIP maintenance shutdowns without pipeline disturbance. PTFE seat is food-safe and CIP chemical compatible.
Industrial Process Plant — Steam and Non-Corrosive Service
WCB body Class 150 flanged 3-piece DN25–DN100. Steam utility isolation, non-corrosive process line block valves, industrial cooling water isolation. WCB body economical for non-corrosive process where SS316 body premium is not justified. Furthermore, Class 150 flanged provides the standard process plant connection matching the piping class for most Indian industrial utility service.
Related Products — Krishna Industries (KELOR)
- Three Piece Ball Valve — Full Range — complete 3-piece ball valve range including screwed BSP/NPT and all pressure classes — for applications where flanged Class 150# is not the specific requirement
- SS316L 2-Piece Ball Valve — 2-piece flanged ball valve for pharma GMP piping where 3-piece in-line maintenance is not required and SS316L low carbon is the specification
- Flanged Ball Valve — flanged WCB and SS316 ball valve for larger bore DN50–DN200 isolation where 2-piece flanged is the specification
- Ball Valve Hub — Complete Range — all ball valve types, materials, and configurations in one page with selection guide
- SS Needle Valve — precision instrument root valve on the same process lines where 3-piece flanged ball valves provide block isolation
Frequently Asked Questions
1. What is the key advantage of 3-piece body over 2-piece for a flanged ball valve?
The centre body of a 3-piece ball valve slides out with the ball and seats while both flanged end connections remain bolted to the pipeline. As a result, the seat and ball can be inspected and replaced in-line without breaking either flange joint, without disturbing pipe alignment, and without replacing gaskets. For a 2-piece flanged ball valve, one end piece must be removed which requires breaking the downstream flange joint, replacing the flange gasket, and retorquing the joint — more disruptive and time-consuming. Specify 3-piece for critical process lines where maintenance frequency is high and minimising downtime has operational value.
2. What is Class 150# pressure rating in bar?
ASME B16.5 Class 150 flanged ball valve is rated approximately 20 bar (290 psi) at ambient temperature for WCB body, and approximately 19 bar for SS304 and SS316 CF8/CF8M body. The pressure rating reduces at elevated temperature per ASME B16.5 pressure-temperature tables. For service above 20 bar, specify Class 300 flanged ball valve. Always verify the exact pressure-temperature rating from ASME B16.5 tables for the specific body material and operating temperature before specifying.
3. What flange facing is standard — RF or FF?
Raised face (RF) is the standard flange facing for ASME B16.5 Class 150 ball valves supplied by Krishna Industries. RF is the correct facing for most Indian process plant applications — it concentrates the bolt load on the raised ring surface and provides reliable sealing with a spiral wound gasket or ring gasket. Flat face (FF) is specified only when connecting to cast iron flanges (CI flanges are prone to cracking if bolted against an RF steel flange — the raised face concentrates load unevenly). Specify FF only if the mating equipment flange is cast iron.
4. What is the MOQ?
MOQ is 10 Nos. Chemical, pharma, and food plant project orders — typically 20 to 200+ Nos across sizes and body materials — with API 598 test certificate, MTC for body material (ASTM A351 CF8M for SS316), and GST invoice. WhatsApp body material (WCB / SS304 / SS316), size list, and quantity for project pricing within 2 hours.
Conclusion
Krishna Industries (KELOR) supplies 3 Piece Ball Valves with Flanged End Class 150# — WCB / SS304 (CF8) / SS316 (CF8M) body — SS316 ball — PTFE / RPTFE seat — flanged ASME B16.5 Class 150 RF — full bore — lever and gear operated — DN15 (½”) to DN100 (4″) — API 598 tested — MTC — GST invoice — Pan India dispatch from Ahmedabad. WhatsApp body material, size list, and quantity for pricing within 2 hours.