Three Piece Ball Valve | SS304 SS316 WCB | Screwed Flanged SW BW | Supplier India

Description

Three Piece Ball Valve Supplier India | SS304 / SS316 / WCB | Fire Safe API 607 | BS 5351 | KELOR

Supplier: Krishna Industries (KELOR) – Ahmedabad, Gujarat, India
Established: 2017 | GSTIN: 24AKLPP6499B1ZT | IEC: AKLPP6499B
MOQ: 10 Nos | Sizes: ½” to 12″ | Standard: BS 5351 / API 608 / API 598
Pressure Class: 150 / 300 / 600 / 800 / 1500

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Introduction – Three Piece Ball Valve Supplier India

Krishna Industries (KELOR), based in Ahmedabad, Gujarat, India, is a trusted B2B supplier of Three Piece Ball Valves sourced from verified Indian manufacturers. We supply Three Piece Ball Valves in forged SS304 (A182 F304), SS316 (A182 F316), SS316L (A182 F316L), and WCB (ASTM A105) body — PTFE, RPTFE, PEEK, and metal seats — full bore and reduced bore — sizes ½” to 12″ — Class 150, 300, 600, 800, and 1500 — screwed BSP/NPT, flanged, socket weld, and butt weld ends — lever, gear, pneumatic, and electric actuated — conforming to BS 5351, API 608, and tested per API 598.

The Three Piece Ball Valve is the maintenance-engineer’s ball valve — its defining feature is the ability to remove the central body (containing the ball, seats, and stem) from the pipeline while both end connectors remain bolted in place. No pipe cutting, no pipeline shutdown, no flange breaking — the seats can be inspected and replaced in the field in under 30 minutes. This makes the three piece construction the correct choice for any service where seat wear is expected, where media is aggressive enough to require periodic inspection, or where process uptime is critical.

Also referred to as: 3-Piece Ball Valve, 3PC Ball Valve, Three Piece Floating Ball Valve, Full Port Three Piece Ball Valve — all the same product across Indian project specifications and procurement BOMs.

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Three Piece vs Two Piece vs One Piece Ball Valve — Complete Comparison

Feature	One Piece	Two Piece	Three Piece
Body Construction	Single casting — no assembly	Two parts — one end cap	✅ Three parts — central body + two end caps
In-Line Maintenance	❌ Not possible — valve must be cut out	Limited — partial disassembly only	✅ Full — central body removes without touching pipeline
Seat Replacement	❌ Replace entire valve	Difficult — limited access	✅ Simple — seats accessible with central body removed
Pipeline Removal Required	✅ Yes — always	Usually yes	✅ No — end caps stay bolted
End Connection Flexibility	Fixed — same both ends	Limited	✅ Mixed ends — screwed one side, flanged other (on request)
Cleaning (CIP/SIP)	Poor — dead spots	Moderate	✅ Best — central body removal allows full cleaning access
Cost	✅ Lowest	Low-medium	Higher — more components and machining
Best For	Low-cost utility — non-critical, infrequent service	General industrial — moderate maintenance need	✅ Chemical, pharma, food, oil and gas — frequent maintenance, aggressive media, hygienic service

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Full Bore vs Reduced Bore — Selection Guide

Feature	Full Bore (Full Port)	Reduced Bore (Standard Port)
Ball Bore Size	Same as pipeline inside diameter	One size smaller than pipeline ID
Pressure Drop	✅ Near zero — unobstructed flow path	Higher — slight restriction at valve
Pigging	✅ Yes — pig passes through freely	❌ No — reduced bore blocks pig
Flow Measurement	✅ No disturbance — adjacent meters accurate	Affects flow profile — meters need more distance
Cost	Higher — larger ball, heavier body	✅ Lower — smaller ball for same nominal size
Best For	Oil and gas pipelines requiring pigging, pump and flow meter adjacent service, viscous media	✅ General process, utilities, chemical — no pigging, pressure drop not critical

For Indian oil and gas and pipeline projects: Specify full bore when your piping specification requires pigging or when the valve is adjacent to a flow meter. Reduced bore is sufficient for all other general process and utility services — and is more economical for the same nominal pipe size.

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Body Material Guide

Material	ASTM Grade	Pressure Class	Temp Range	Best For
Carbon Steel (Forged)	ASTM A105	Class 150–1500	-29°C to +425°C	Oil, gas, steam, general process — most economical for industrial service
Stainless Steel 304	ASTM A182 F304	Class 150–1500	-196°C to +425°C	Corrosion-resistant general service — water, chemical, food utility
Stainless Steel 316	ASTM A182 F316	Class 150–1500	-196°C to +425°C	Higher corrosion — chloride service, aggressive chemical, pharma, offshore
Stainless Steel 316L	ASTM A182 F316L	Class 150–1500	-196°C to +425°C	Low carbon — pharma GMP, food FDA, welded SS piping — weld sensitisation prevention

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Seat Material Guide

Seat Material	Temp Range	Chemical Resistance	Best For
PTFE (Virgin)	-29°C to +180°C	✅ Excellent — most chemicals	✅ Standard — general chemical, water, food, pharma — most common in India
RPTFE (Reinforced PTFE)	-29°C to +180°C	✅ Excellent	Moderate abrasive media — glass-filled PTFE for better wear resistance
PEEK	-50°C to +250°C	Good — most chemicals except strong acids	High temperature service, steam, abrasive — where PTFE deforms at temperature
NYLON (PA)	-40°C to +100°C	Good — water, mild chemical	Low cost utility service — water, air, general industrial
Metal Seat (SS316 / Stellite)	Up to +500°C	Depends on material	High temperature steam, erosive service, cryogenic — where soft seats deform or embrittle

For most Indian process plants: Virgin PTFE seat is the correct standard specification. Upgrade to RPTFE for slightly abrasive or high-cycling service. Specify PEEK for steam service above 180°C. Metal seat for high temperature refinery and power plant applications.

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Fire Safe Design — API 607 / API 6FA

Fire safe ball valves are mandatory in all oil and gas, refinery, petrochemical, and flammable gas service applications in India — many insurance policies and project piping specifications require it by default for all hydrocarbon service valves.

A fire safe three piece ball valve is designed to maintain sealing integrity in the event of a fire that destroys the soft PTFE seats — secondary metal-to-metal seating between the ball and the body ensures the valve can still close and isolate the pipeline even after the PTFE seats have burned away. Fire safe design is tested and certified per API 607 (fire testing for soft-seated quarter-turn valves) or API 6FA (fire testing for valves in general).

When to specify fire safe: Any service with flammable gas, LPG, natural gas, fuel oil, or hydrocarbon vapour — oil and gas plants, refineries, petrochemical plants, gas stations. Specify “Fire Safe — API 607 certified” explicitly in your RFQ.

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Anti-Static Device — API 608 Requirement

Static electricity can accumulate on the ball as fluid flows across the PTFE seats — the PTFE insulates the ball from the body. In flammable gas or vapour service, this static charge can discharge as a spark and ignite the media. An anti-static device (a spring-loaded contact between ball, stem, and body) provides a continuous electrical path to dissipate static charge safely to the pipeline. API 608 and BS 5351 require anti-static devices for all ball valves in flammable service. Specify “anti-static device” in your RFQ for any gas or flammable vapour service.

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Technical Specifications

Parameter	Specification
Product Type	Three Piece Floating Ball Valve
Design Standard	BS 5351 / API 608 / ASME B16.34
Face to Face	ASME B16.10 / EN 558
Flange Standard	ASME B16.5 (flanged end)
Screwed End Standard	ASME B1.20.1 (NPT) / BS 21 (BSP)
Socket Weld Standard	ASME B16.11
Testing Standard	API 598 / EN 12266
Size Range	½” to 12″ (DN15 to DN300)
Pressure Class	Class 150 / 300 / 600 / 800 / 1500
End Connections	Screwed BSP / NPT / Flanged / Socket Weld / Butt Weld
Bore	Full Bore (Full Port) / Reduced Bore (Standard Port)
Stem	Blow-out proof — API 608 / BS 5351 compliant
Operation	Lever / Gear / Pneumatic Actuator / Electric Actuator
Fire Safe Option	API 607 / API 6FA certified (on request)
Anti-Static	API 608 compliant (on request)
MOQ	10 Nos
HSN Code	84818020

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All Variants — Full Keyword Coverage

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Applications in Indian Industries

• Chemical plants — SS316 full bore with PTFE seat — isolation and maintenance-free in-line service for aggressive chemical media
• Pharmaceutical plants — SS316L body with PTFE or RPTFE seat — GMP-compatible, in-line maintenance without shutdown
• Food and beverage — SS316L body with PTFE seat — FDA material compliance, in-line CIP/SIP accessible
• Dairy plants — SS316L with PTFE seat — hygienic process lines, clean-in-place accessible
• Oil and gas — A105 / WCB full bore — fire safe API 607, anti-static, piggable pipeline isolation
• Refineries — WCB or SS316 — fire safe, Class 600 / 800 / 1500 high pressure process lines
• Gas distribution — WCB full bore fire safe anti-static — natural gas, LPG, fuel gas isolation
• Water treatment — SS304 or WCB reduced bore — pump isolation, dosing line valves
• HVAC systems — SS304 reduced bore — chilled water and condenser water isolation
• Instrument isolation — small bore SS316 screwed BSP or NPT — gauge, transmitter, sample point isolation

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EPC and Project Buyers — Bulk Supply

• Complete valve BOM supply — SS304, SS316, WCB in all end connections and pressure classes in single order
• Forged body MTC per ASTM A182 / A105 with heat number
• API 598 hydrostatic body test and seat leakage test certificates
• Fire safe API 607 test certification on request
• NACE MR0175 compliance for sour service on request
• Third party inspection — TUV / BV / Lloyd’s on request
• GST invoices — GSTIN: 24AKLPP6499B1ZT
• Fast dispatch from Ahmedabad — 3 to 7 working days standard grades

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PAN India Supply Coverage

Gujarat — Ahmedabad, Surat, Vadodara, Rajkot, Bharuch, Ankleshwar, Vapi, Dahej
Maharashtra — Mumbai, Pune, Navi Mumbai, Nashik, Aurangabad, Nagpur
Rajasthan — Jaipur, Jodhpur, Udaipur, Kota, Bhilwara
Delhi NCR — Delhi, Noida, Gurgaon, Faridabad, Ghaziabad
Tamil Nadu — Chennai, Coimbatore, Madurai, Tirupur, Salem
Karnataka — Bangalore, Hubli, Mysore, Belgaum, Mangalore
Telangana and Andhra Pradesh — Hyderabad, Vizag, Vijayawada, Kakinada
Madhya Pradesh — Indore, Bhopal, Jabalpur, Pithampur
Punjab and Haryana — Ludhiana, Amritsar, Chandigarh, Panipat
West Bengal — Kolkata, Durgapur, Asansol, Haldia

Export FOB Mundra / JNPT. IEC: AKLPP6499B.

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Related Products from Krishna Industries

• Flush Bottom Ball Valve — tank drain zero dead leg ball valve
• Globe Valve (WCB / SS316) — throttling and flow regulation adjacent to ball valve isolation
• Gate Valve (API 600) — full bore isolation for large bore and high pressure lines
• Y Strainer Valve — upstream protection before ball valve on critical process lines
• Stud Bolt A193 B7 / B8M — matched flange fasteners for flanged end ball valves

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Frequently Asked Questions

1. What is a three piece ball valve?

A ball valve constructed in three separate sections — two end connectors and a central body containing the ball and seats. The central body can be removed for maintenance, seat replacement, or inspection without disturbing the pipeline — the two end connectors remain bolted in the pipeline. The defining advantage over one-piece and two-piece ball valves for any service requiring periodic maintenance.

2. Why choose three piece over two piece ball valve?

Three piece allows full in-line maintenance — remove the central body, replace seats, reassemble — without cutting the pipeline or breaking flanged joints. Two piece requires removing the valve from the pipeline for any internal maintenance. For chemical, pharmaceutical, food, or any aggressive service where seat life is limited, three piece is the correct choice. For non-critical utility service with no maintenance expectation, two piece is more economical.

3. What ASTM material grade is SS316 three piece ball valve?

ASTM A182 F316 for forged body — the correct specification for project BOMs and MTC verification. “SS316” alone is insufficient for project documentation — specify A182 F316 in your purchase order to ensure correct material is supplied and traceable on MTC.

4. What is fire safe and when is it required?

Fire safe ball valves maintain sealing after soft PTFE seats burn in a fire — secondary metal-to-metal seating on ball and body. Required per API 607 / API 6FA for all flammable gas, oil, and hydrocarbon vapour service. Mandatory in oil and gas, refinery, and petrochemical projects. Specify “Fire Safe API 607 certified” in your RFQ for these services.

5. What is blow-out proof stem?

A stem design where the stem cannot be ejected from the valve body under pressure — a shoulder or retaining feature inside the body prevents outward stem movement. Required per API 608 and BS 5351 for all industrial ball valves. A valve without blow-out proof stem is a safety risk — stem ejection under pressure is a serious injury hazard.

6. Full bore or reduced bore for my application?

Full bore for pipeline pigging, adjacent flow meters, and viscous media. Reduced bore for all other general process and utility services — more economical for the same nominal pipe size. If your piping specification does not specifically require full bore, reduced bore is correct and standard.

7. What seat for steam service?

PEEK seat for steam up to 250°C — PTFE deforms and fails at steam temperatures above 180°C. Metal seat (SS316 or Stellite) for steam above 250°C or erosive steam flash service. Confirm steam temperature and pressure before ordering.

8. Can three piece ball valve be actuated?

Yes — pneumatic cylinder actuators (single and double acting, fail-open or fail-close) and electric actuators available. ISO 5211 mounting pad standard on gear boxes for easy actuator fit. Specify control signal (4-20mA, on-off), fail position, and enclosure IP rating in your RFQ.

9. What MTC and test certificates are provided?

Forged body MTC per ASTM A182 / A105 with heat number, chemical composition, mechanical properties. API 598 hydrostatic body test and seat leakage test certificates. Fire safe API 607 certification on request. NACE MR0175 compliance documentation on request.

10. What is the MOQ?

MOQ is 10 Nos per line item. Complete project BOM valve schedule pricing welcome.

11. Can I order screwed end and flanged end in one order?

Yes — all end connection types, all materials, all pressure classes consolidated in single order — single GST invoice, single dispatch from Ahmedabad.

12. What is the HSN code for three piece ball valve?

HSN code 84818020 — ball valves. Applicable for all ball valve types including three piece, two piece, and one piece.

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Conclusion

The Three Piece Ball Valve supplied by Krishna Industries (KELOR) is the correct choice for any service requiring in-line maintenance capability — forged SS304 (A182 F304), SS316 (A182 F316), SS316L (A182 F316L), and WCB (A105) body — PTFE, RPTFE, PEEK, and metal seats — full bore and reduced bore — screwed BSP/NPT, flanged, socket weld, and butt weld ends — sizes ½” to 12″ — Class 150 to Class 1500 — fire safe API 607, anti-static API 608, blow-out proof stem BS 5351 / API 608. Sourced from verified Indian manufacturers with ASTM MTC, API 598 test certificates, and full GST documentation. Fast PAN India dispatch from Ahmedabad.

For chemical plant engineers, pharmaceutical procurement teams, oil and gas project buyers, food processing purchase managers, and EPC contractors — contact Krishna Industries (KELOR), your trusted Three Piece Ball Valve supplier in Ahmedabad, Gujarat, India. WhatsApp your material grade, size, pressure class, end connection, and quantity for bulk pricing within 2 hours.