2 Piece Flanged Ball Valve Supplier India — WCB SS304 SS316 150# 300# | KELOR

2 Piece Flanged Ball Valve Supplier in India — WCB / SS304 / SS316 — Class 150 / 300 | KELOR

Krishna Industries (KELOR), based in Ahmedabad, Gujarat, supplies 2 Piece Design Flanged Ball Valves — WCB (ASTM A216) / SS304 (CF8 ASTM A351) / SS316 (CF8M ASTM A351) body — SS316 ball — PTFE / RPTFE seat — flanged ASME B16.5 Class 150 and Class 300 — full bore — lever operated (DN15–DN50) and gear operated (DN65–DN200) — DN15 (½″) to DN200 (8″) — API 598 tested — GST invoice — MOQ 10 Nos — Pan India dispatch from Ahmedabad.

Mill Test Report 3.1 can be provided on request from verified vendors for SS304 and SS316 grades. API 598 hydrostatic shell test and seat leakage test certificate provided with every order. Face-to-face dimensions per ASME B16.10.

⚡ Quick Reference

SupplierKrishna Industries (KELOR) — Ahmedabad

Body MaterialWCB / SS304 (CF8) / SS316 (CF8M)

Ball & TrimSS316 Full Bore

End ConnectionFlanged ASME B16.5 Class 150 / 300

SeatVirgin PTFE / RPTFE

Size RangeDN15 (½″) to DN200 (8″)

OperationLever (DN15–DN50) / Gear (DN65–DN200)

MOQ10 Nos

📜 On This Page

Overview — 2 Piece Flanged Ball Valve
2-Piece vs 3-Piece — When to Specify
Body Material Selection
Technical Specifications
Applications in Indian Industries
Seat Material — PTFE vs RPTFE
Class 150 vs Class 300 — Pressure Selection
Why Choose KELOR
Commercial Information
Related Products
Frequently Asked Questions

2 Piece Flanged Ball Valve — Overview

Krishna Industries (KELOR) supplies the 2 Piece Design Flanged Ball Valve — a quarter-turn on/off isolation valve with full bore passage that maintains the pipeline bore through the valve body. The 2-piece body consists of two main body halves bolted together, with one body joint that allows access to the internal ball and seat for maintenance. The flanged end connections (ASME B16.5 Class 150 or Class 300) allow bolted connection between pipeline flanges, and the valve can be removed from the pipeline for maintenance or replacement by unbolting the flange joints without cutting welds.

The full bore design means the ball port diameter matches the pipeline internal diameter — there is no flow restriction through the valve when fully open, and the pressure drop is near zero. This makes the 2-piece flanged ball valve the standard specification for on/off isolation in industrial process plant piping, HVAC systems, water treatment plants, chemical and petrochemical facilities, oil and gas pipelines, and fire fighting systems across India. The 2-piece construction is the most economical flanged ball valve design, suitable for the majority of industrial applications where in-line seat replacement without pipeline disturbance is not required.

2-Piece vs 3-Piece Flanged Ball Valve — When to Specify Each

The choice between 2-piece and 3-piece body construction is one of the first design decisions when specifying a flanged ball valve. The fundamental difference is in how the body is constructed and whether the seat can be replaced without removing the valve from the pipeline. Understanding this difference is essential for correct specification and cost optimisation:

Feature	2-Piece Flanged Ball Valve	3-Piece Flanged Ball Valve
Body Construction	Two body halves — one body joint — seat accessible by removing end piece	Three sections — centre body removable with both end connections remaining in pipeline
In-Line Maintenance	Valve must be partially removed from pipeline for seat replacement — downstream flange joint broken	Centre body slides out — seat and ball replaced in-line — both flanges remain bolted to pipeline
Cost	Lower — fewer body components — standard for general process plant service	Higher — in-line maintenance premium — justified for critical service lines
Leak Paths	One body joint + two flange gaskets = 3 potential leak paths	Two body joints + two flange gaskets = 4 potential leak paths (slightly higher)
Weight	Lighter — fewer body bolts and components	Heavier — additional body flange and bolts for centre section
Specify When	General process plant isolation — non-critical service — infrequent maintenance — most Indian industrial and HVAC flanged ball valve applications	Critical process lines where in-line seat replacement without pipeline disturbance is required — chemical plant critical service lines — pharmaceutical process piping

💡 Selection Rule

For the majority of Indian industrial and HVAC flanged ball valve applications, the 2-piece design is the correct and most cost-effective specification. It provides full bore, reliable quarter-turn shut-off, and can be maintained by unbolting the flanges — which is an acceptable maintenance procedure for non-critical isolation service. Specify 3-piece only when in-line seat replacement without pipeline disturbance is a project requirement — typically for critical chemical process lines, continuous process plants, and applications where shutdown time for valve maintenance is not available.

Body Material Selection

WCB Carbon Steel SS304 (CF8) SS316 (CF8M)

Body Material	Standard	Specify For	Not For
WCB (Carbon Steel)	ASTM A216 WCB	Industrial process — steam, oil, gas, non-corrosive water — most economical flanged ball valve for standard Indian process plant — Class 150 and 300	Corrosive chemical, DM water, seawater — WCB corrodes in these services
SS304 (CF8)	ASTM A351 CF8	DM water, mild chemical, food non-chloride, pharma non-GMP utility — corrosion resistant — no iron contamination — lower cost than SS316	Chloride-rich service, seawater, aggressively treated water — specify SS316
SS316 (CF8M)	ASTM A351 CF8M	Corrosive chemical, chloride service, pharma process, food GMP, seawater, coastal industrial — 2–3% Mo provides chloride pitting resistance — standard SS flanged ball valve for Indian chemical and pharma projects	GMP pharma welded piping requiring sensitisation-free material — specify SS316L CF3M

Technical Specifications

Parameter	Specification
Valve Type	2-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 design
End Connection	Flanged ASME B16.5 Class 150 / Class 300 — Raised Face (RF) standard
Bore	Full Bore — pipeline bore maintained through valve
Size Range	DN15 (½″) to DN200 (8″)
Pressure Class	Class 150 (~20 bar at ambient) / Class 300 (~51 bar at ambient)
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–DN200)
Face to Face	ASME B16.10
Testing Standard	API 598 — shell hydrostatic test + seat leakage test
MOQ	10 Nos
HSN Code	84818090

Applications in Indian Industries

Water Treatment & HVAC

WCB body Class 150 flanged DN50–DN200 — chilled water, condenser water, and hot water pipeline isolation in HVAC systems. Raw water and treated water pipeline block valves in ETP, STP, and municipal water treatment plants. Full bore design maintains pipe bore and allows pigging on water treatment plant main lines.

Chemical & Petrochemical

SS316 CF8M body Class 150 and 300 flanged DN25–DN150 — corrosive chemical process line isolation — chloride-containing media, acid, alkali, solvent service. SS316 body resists corrosive attack that WCB body cannot handle in chemical plant service. Class 300 for higher pressure chemical process lines above 20 bar operating pressure.

Oil & Gas Pipelines

WCB body Class 150 and 300 flanged DN50–DN200 — pipeline block valves, pump isolation, tank farm manifold valves. Full bore design allows pipeline inspection tools (PIGs) to pass through without restriction. Gear operated for DN150–DN200 where manual lever torque exceeds comfortable operation range.

Fire Fighting Systems

WCB body Class 150 flanged DN65–DN200 — fire hydrant main supply isolation, sprinkler zone valves, deluge system isolation. Full bore ensures no flow restriction to fire water delivery points. Gear operated for large bore valves on fire fighting ring mains and hydrant laterals.

Seat Material — PTFE vs RPTFE

📚 PTFE (Standard) vs RPTFE (Reinforced)

Virgin PTFE is the standard seat material for 2-piece flanged ball valves — it provides Class VI zero leakage sealing, the widest chemical compatibility, and is suitable for temperatures from -20°C to +180°C. PTFE is the correct choice for the vast majority of industrial applications including water, HVAC, chemical, and general process service. RPTFE (Reinforced PTFE) contains glass fibre or carbon filler that increases mechanical strength and deformation resistance — it is specified for higher pressure service (Class 300), higher temperature (up to +200°C), and applications with frequent cycling where PTFE cold flow would reduce seat life. RPTFE has slightly reduced chemical compatibility compared to virgin PTFE due to the filler material.

Class 150 vs Class 300 — Pressure Selection

Parameter	Class 150	Class 300
Pressure at Ambient (WCB)	~20 bar (285 psi)	~51 bar (740 psi)
Flange Bolt Circle	Smaller — fewer bolts, lighter flanges	Larger — more bolts, heavier flanges — NOT interchangeable with Class 150
Flange Thickness	Thinner — standard for most Indian HVAC, water, and general industrial piping	Thicker — required for higher pressure chemical and process piping
Cost	Lower — standard for 90%+ of Indian industrial flanged ball valve applications	Higher — justified only when operating pressure exceeds Class 150 rating or project piping class specifies Class 300
Specify When	Standard industrial process, HVAC, water treatment, fire fighting — operating pressure below 20 bar — the default specification unless otherwise specified	Chemical and petrochemical process lines above 20 bar — high-pressure steam service — when project piping and instrumentation diagram specifies Class 300

⚠ Critical: Class 150 and Class 300 Flanges Are NOT Interchangeable

Class 300 flanges have a larger bolt circle diameter, more bolt holes, and thicker flange ring than Class 150 of the same nominal size. A Class 300 valve cannot be bolted to Class 150 flanges, and vice versa. Always verify the piping class from the project piping and instrumentation diagram (P&ID) and line list before specifying pressure class. Mixing flange classes is a common procurement error that causes installation failures.

Why Choose KELOR for 2-Piece Flanged Ball Valves?

🛠

Verified Vendor Partners

All 2-piece flanged ball valves sourced from quality-assured vendor partners conforming to ASME B16.5, ASME B16.10, and API 598. Mill Test Report 3.1 can be provided on request from verified vendors.

📦

WCB + SS304 + SS316 Range

Complete body material range from a single supplier — WCB for general service, SS304 (CF8) for non-chloride corrosive, SS316 (CF8M) for chloride and chemical — Class 150 and Class 300.

💰

Competitive Project Pricing

Bulk project pricing for 100+ piece orders. Consolidated orders across sizes and body materials with one GST invoice. Transparent quotation with no hidden charges.

📄

Full Documentation

API 598 hydrostatic test certificate, material certificates per EN 10204 3.1 (on request for SS grades), GST invoice, packing list. Face-to-face dimensions per ASME B16.10.

🚚

Pan India Dispatch

Reliable delivery to all major industrial cities — Mumbai, Pune, Chennai, Bengaluru, Hyderabad, Delhi NCR, Gujarat industrial belt. Industrial packing suitable for road and rail transport.

📞

Technical Support

Body material selection guidance — Class 150 vs 300 pressure specification — lever vs gear operated sizing — seat material recommendation. Response within 24 hours.

Commercial Information

💳 Ordering & Delivery

Established2017

GSTIN24AKLPP6499B1ZT

IECAKLPP6499B

MOQ10 Nos

Payment TermsAdvance Payment

DeliveryReady stock / project lead time

GST InvoiceProvided with every order

Price BasisEx-Works Ahmedabad

B2B Buying Checklist — 2-Piece Flanged Ball Valve

Confirm body material: WCB (general) / SS304 CF8 (non-chloride corrosive) / SS316 CF8M (chloride, chemical)
Specify pressure class: Class 150 (standard, below 20 bar) / Class 300 (above 20 bar or project specifies) — verify from P&ID
Confirm size (DN) and bore: Full bore (standard) — must match pipeline size
Specify seat material: Virgin PTFE (standard) / RPTFE (high pressure, high cycle, higher temperature)
Confirm operation: Lever (DN15–DN50) / Gear operated (DN65–DN200)
Verify flange facing: Raised Face (RF) standard — Flat Face (FF) only if mating flange is cast iron
Request API 598 test certificate and Mill Test Report 3.1 (for SS grades) at order stage
WhatsApp complete BOM: body material, size list, pressure class, operation type, quantity for pricing within 2 hours

Applicable Standards

📋 Standards & Compliance

ASME B16.5 — Pipe Flanges and Flanged Fittings — Class 150 and 300 dimensions, pressure-temperature ratings, and flange drilling for flanged ball valve end connections.

ASME B16.10 — Face-to-Face and End-to-End Dimensions of Ferrous Valves — defines the face-to-face dimension for 2-piece flanged ball valves by size and pressure class.

API 598 — Valve Inspection and Testing — hydrostatic shell test at 1.5x rated pressure and seat leakage test at 1.1x rated pressure.

API 607 / FCI 70-2 — Fire Test for Soft-Seated Quarter-Turn Valves — fire-safe version available for oil, gas, and fire fighting applications on request.

Frequently Asked Questions

What is the difference between 2-piece and 3-piece flanged ball valve?

A 2-piece ball valve has one body joint — the end piece is removed for seat access, which requires breaking the downstream flange joint. A 3-piece ball valve has three sections — the centre body slides out for in-line seat replacement while both flanged end connections remain bolted to the pipeline. Specify 2-piece for general process plant service where in-line maintenance is not required — lower cost, fewer components, standard for most Indian industrial applications. Specify 3-piece for critical process lines where seat replacement must be done without pipeline disturbance.

What pressure class should I specify — Class 150 or Class 300?

Class 150 (approximately 20 bar at ambient for WCB, 19 bar for SS316) covers the majority of Indian industrial process plant and HVAC flanged ball valve applications. Specify Class 300 (approximately 51 bar at ambient) when operating pressure plus test pressure exceeds Class 150 rating, or when the project piping class explicitly specifies Class 300. Always confirm from the project piping class document before ordering. Class 300 flanges have larger bolt circle diameter and more bolt holes than Class 150 — they are not interchangeable.

What flange facing is standard for 2-piece flanged ball valves?

Raised face (RF) is the standard for ASME B16.5 Class 150 and 300 flanged ball valves. RF concentrates bolt load on the raised ring and provides reliable sealing with spiral wound gasket or compressed fibre gasket. Flat face (FF) is required only when connecting to cast iron flanges — specify FF only if the mating flange material is cast iron. Ring Type Joint (RTJ) is available for Class 300 high-pressure and high-temperature service.

When should I specify lever vs gear operated?

Lever operated is standard for DN15 to DN50 where the quarter-turn torque is within comfortable manual range. Gear operated handwheel is required for DN65 and above where the torque needed to turn the ball exceeds comfortable manual lever operation. Gear operators multiply input torque through a worm gear reduction, allowing a single operator to reliably open and close valves up to DN200. Gear operation also allows precise positioning for throttling applications (though ball valves are not designed as primary throttling devices).

What is the MOQ and documentation provided?

MOQ is 10 Nos. Project and plant orders from 10 to 500+ Nos across sizes and body materials are supplied with API 598 hydrostatic test certificate, GST invoice, and packing list. Mill Test Report 3.1 can be provided on request from verified vendors for SS304 and SS316 grades. WhatsApp body material, size list, pressure class, and quantity for project pricing within 2 hours.

Need a Quote for 2-Piece Flanged Ball Valves?

WhatsApp body material (WCB / SS304 / SS316), size list, pressure class (Class 150 / 300), and quantity — pricing within 2 hours

💬 WhatsApp for Bulk Price ✉ Send Email RFQ

🔗 Related Pages & Resources

3-Piece Flanged Ball Valve Y Strainer Flanged Class 150 CF8M SS316 Gate/Globe/Check SS304 Butterfly Valve Gate Valve Guide Stainless Steel Grades for Valves Valve Symbols P&ID Guide 📷 Instagram — @kelorvalves 👥 LinkedIn — Krishna Industries (KELOR)

Krishna Industries (KELOR) supplies 2 Piece Design Flanged Ball Valves — WCB / SS304 (CF8) / SS316 (CF8M) body — SS316 ball — PTFE / RPTFE seat — flanged ASME B16.5 Class 150 / Class 300 — full bore — lever and gear operated — DN15 (½″) to DN200 (8″) — API 598 tested — GST invoice — MOQ 10 Nos — Pan India dispatch from Ahmedabad.