Cast Iron Wafer Type Butterfly Valve — Manufacturer & OEM Supplier | KELOR, Ahmedabad
Body: IS 210 Gr. FG 200 Cast Iron · Disc: CI or SS304 · Seat: EPDM / NBR / PTFE · Standard: BS 5155 / IS 13095 · PN10 (PN16 on request) · DN40 to DN600 · Lever / Gear / Actuator operated
Starting ₹375/Piece (CI Disc) · SS304 Disc from ₹570/Piece · MOQ 10 Nos · Ready Stock DN40–DN200 · OEM Bulk Supply · GST Invoice (GSTIN: 24AKLPP6499B1ZT) · Pan India Dispatch · 2-Hour Quote
Also Available — Other Butterfly Valve Types
A cast iron wafer type butterfly valve is a quarter-turn flow control and isolation valve installed between two pipe flanges — the compact wafer body is clamped by flange bolts that pass either side of the valve. The rotating disc controls flow from fully open (0°) to fully closed (90°) in a single quarter-turn operation. Cast iron body (IS 210 Gr. FG 200) makes it the most economical butterfly valve material — suitable for water supply, HVAC, fire fighting, and general utility service up to PN16 pressure and 180°C with appropriate seat selection.
Krishna Industries (KELOR), Ahmedabad, manufactures and supplies cast iron wafer butterfly valves directly to EPC contractors, building services contractors, HVAC companies, water treatment plants, fire system integrators, and industrial buyers across India. GST invoice. Ready stock in common sizes. Pan India dispatch.
Cast Iron Butterfly Valve Price List — Ex-Ahmedabad (PN10, EPDM Seat)
Indicative prices for standard cast iron body wafer butterfly valves — lever operated, EPDM seat, PN10, as per BS 5155 / IS 13095. These are manufacturer-direct prices — not trader margins. Bulk order pricing (50+ pieces per size) available on request.
| Size | DN (mm) | NB (Inches) | CI Disc (₹/Pc) | SS304 Disc (₹/Pc) | Stock |
|---|---|---|---|---|---|
| 40 mm | DN40 | 1½” | ₹375 | ₹570 | ✅ Ready |
| 50 mm | DN50 | 2″ | ₹500 | ₹760 | ✅ Ready |
| 65 mm | DN65 | 2½” | ₹625 | ₹950 | ✅ Ready |
| 80 mm | DN80 | 3″ | ₹750 | ₹1,140 | ✅ Ready |
| 100 mm | DN100 | 4″ | ₹1,000 | ₹1,520 | ✅ Ready |
| 125 mm | DN125 | 5″ | ₹1,250 | ₹1,900 | ✅ Ready |
| 150 mm | DN150 | 6″ | ₹1,500 | ₹2,280 | ✅ Ready |
| 200 mm | DN200 | 8″ | On Request | On Request | ⏱ 7 Days |
| 250 mm | DN250 | 10″ | On Request | On Request | ⏱ 7–10 Days |
| 300 mm | DN300 | 12″ | On Request | On Request | ⏱ 10 Days |
| 400 mm | DN400 | 16″ | On Request | On Request | ⏱ 10–15 Days |
| 600 mm | DN600 | 24″ | On Request | On Request | ⏱ 15–20 Days |
CI Disc vs SS304 Disc — When to Specify Which
The most common selection question on the KELOR butterfly valve price inquiry. The disc material determines corrosion resistance for the flowing fluid — the body is always cast iron regardless of disc choice.
| Feature | Cast Iron (CI) Disc | SS304 (CF8) Disc |
|---|---|---|
| Material | IS 210 Gr. FG 200 Grey Cast Iron | AISI 304 / ASTM A351 CF8 Stainless Steel |
| Price | ✅ Lower — ₹375 (DN40) to ₹1,500 (DN150) | Higher — ₹570 (DN40) to ₹2,280 (DN150) — ~52% premium |
| Corrosion Resistance | Standard — suitable for clean water, HVAC, fire fighting in non-corrosive service | Good — resists mild corrosion; suitable for mildly aggressive water, wastewater, dilute chemicals |
| Media Suitability | Cold/hot water, HVAC cooling/heating water, air, fire fighting water — non-corrosive clean service only | Water with suspended solids, mildly saline water, dilute acid/alkali, wastewater, food-grade water lines |
| Sea/Coastal Water | ❌ Not suitable — CI disc corrodes in saline/brackish water | ⚠️ Marginal — SS304 pits in seawater above 150 ppm chloride; specify SS316 disc (available on request) for marine |
| Seat Compatibility | EPDM (standard) · NBR · PTFE | EPDM (standard) · NBR · PTFE · Viton |
| Specify For | HVAC building services, fire fighting, municipal water, general cooling, compressed air, clean process water — the majority of Indian projects | Wastewater treatment, mildly chemical service, food & dairy, urban water supply with treated water, slightly corrosive service |
Seat Material Selection — EPDM, NBR, PTFE
The seat (liner) material seals between the disc and body and contacts the flowing fluid. Wrong seat selection causes early failure. Match seat to the EPDM / NBR selection logic from the valve O-ring guide.
| Seat | Temp Range | ✅ Specify For | ❌ Avoid |
|---|---|---|---|
| EPDM (Standard) | -10°C to +120°C | Water supply, HVAC (chilled water, condenser water, hot water), potable water, fire fighting, dilute acids/alkalis — the default seat for most Indian projects | Petroleum products, oils, fuels — EPDM swells immediately in hydrocarbon service |
| NBR (Nitrile) | -10°C to +80°C | Oil service, petroleum products, compressed air with oil carry-over, diesel, LPG lines | Hot water above 80°C, steam, HVAC cooling water with biocide treatment — NBR fails in these service conditions |
| PTFE (Teflon) | -20°C to +180°C | Chemical service, concentrated acids/alkalis, solvents, pharmaceutical/food GMP, high-temperature steam lines, chlorine water, demineralised water | Heavy abrasive slurries — PTFE is soft and abrades; specify metal-seated valve for abrasive service |
| Viton (FKM) | -20°C to +180°C | Aggressive organic chemicals, aromatic solvents, chlorinated compounds, high-temperature oil service, chlorine and chlorine compounds | Ketones, amines — check chemical compatibility chart for Viton limits |
Technical Specifications — Cast Iron Wafer Butterfly Valve PN10
| Parameter | Specification |
|---|---|
| Valve Type | Concentric (Centric) Disc Wafer Type Butterfly Valve |
| Body Material | IS 210 Gr. FG 200 Cast Iron (Grey Cast Iron) |
| Disc Material | Cast Iron (FG 200) / SG Iron (Ductile Iron) / SS304 (CF8) — specify on order |
| Seat / Liner | EPDM (standard) · NBR · PTFE · Viton (FKM) |
| Stem / Shaft | SS410 (standard) · SS316 (on request) |
| Design Standard | BS 5155 / IS 13095 / API 609 |
| Testing Standard | BS EN 12266 / API 598 |
| Pressure Rating | PN10 (standard) · PN16 (on request) |
| Hydraulic Test | Body: 225 PSIG (16 kg/cm²) · Seat: 165 PSIG (11.5 kg/cm²) |
| Size Range | DN40 to DN600 (1½” to 24″) |
| End Connection | Wafer Type — clamped between flanges (ASME B16.5 / IS 1538 / DIN flange compatible) |
| Face-to-Face | Per BS 5155 short pattern — see dimension table below |
| Operation | Lever (DN40–DN150) · Gear operated (DN150 and above) · Pneumatic / Electric actuator on request |
| Temperature Range | −10°C to +120°C (EPDM) · −10°C to +80°C (NBR) · −20°C to +180°C (PTFE) |
| Flow Direction | Bi-directional (both directions) |
| Painting | Shot blast + red oxide primer (standard) · Epoxy coat on request |
| Starting Price | ₹375/piece (DN40, CI disc, EPDM seat, lever operated) |
| HSN Code | 84818000 |
| GST Rate | 18% |
Face-to-Face Dimensions & Torque — DN40 to DN600
Face-to-face dimensions per BS 5155 short pattern. Operating torque values for EPDM seat at 10 bar — gear operation recommended from DN150 upwards for comfortable manual actuation.
| Size (DN) | NB (Inches) | Face to Face (mm) | Operating Torque (Nm) | Operation | Approx. Weight (kg) |
|---|---|---|---|---|---|
| DN40 | 1½” | 43 | 8 | Lever | 1.2 |
| DN50 | 2″ | 43 | 10 | Lever | 1.5 |
| DN65 | 2½” | 46 | 14 | Lever | 2.0 |
| DN80 | 3″ | 46 | 18 | Lever | 2.8 |
| DN100 | 4″ | 52 | 25 | Lever | 4.0 |
| DN125 | 5″ | 56 | 35 | Lever | 5.5 |
| DN150 | 6″ | 56 | 50 | Lever / Gear | 7.5 |
| DN200 | 8″ | 60 | 80 | Gear | 12.0 |
| DN250 | 10″ | 68 | 125 | Gear | 18.0 |
| DN300 | 12″ | 78 | 175 | Gear | 26.0 |
| DN400 | 16″ | 102 | 310 | Gear | 45.0 |
| DN600 | 24″ | 127 | 680 | Gear | 95.0 |
OEM Bulk Supply — Custom Butterfly Valves as Per Drawing or Specification
For OEM valve assemblers, EPC project bulk orders, and specification-driven supply, Krishna Industries offers:
- Custom disc material — CI, SG Iron (Ductile Iron), SS304, SS316 on request
- Custom seat material — EPDM, NBR, PTFE, Viton to suit specific process fluid
- Custom pressure rating — PN10 standard; PN16 available
- Actuated variants — pneumatic (double-acting or spring-return) and electric MOV on request
- Lug type end connection (threaded lugs for dead-end service) available across full size range
- Custom painting — epoxy-coated, powder-coated, or specific RAL colour for project requirements
- Private label / OEM marking with your brand name on valve body
- Bulk project supply with test certificates (hydrostatic test cert, MTC, dimensional report) for EPC documentation
Wafer Type vs Lug Type — When to Specify Which
| Feature | Wafer Type (This Product) | Lug Type |
|---|---|---|
| Installation | Clamped between two flanges — flange bolts pass alongside valve body; BOTH pipeline flanges must be connected | Threaded lugs on valve body — can be bolted to ONE flange only; allows dead-end service (one side dismantled) |
| Dead-End Service | ❌ Cannot isolate one side of pipeline — both flanges always required | ✅ Yes — piping downstream can be removed while valve stays in line |
| Cost | ✅ Lower — simpler body casting | Higher — machined lug inserts increase cost |
| Specify For | All standard pipeline applications — the most common BFV type for HVAC, water, fire fighting, and general process service where dead-end is not required | Applications where downstream pipeline must be removable (pump connections, filter isolation, equipment maintenance access) |
Industries & Applications
🔥 Fire Fighting
CI disc + EPDM seat for fire pump discharge, hydrant mains, deluge headers, and sprinkler zone valves. PN10 standard for most fire system ratings.
❄️ HVAC Systems
CI or SS304 disc + EPDM seat for chilled water AHU connections, cooling tower loops, condenser water circuits, and hot water heating mains.
💧 Water Treatment
SS304 disc + EPDM seat for municipal WTP pump discharge, filter isolation, sludge lines, and distribution main sectionalising.
⚗️ Chemical & Process
SS304 disc + PTFE seat for dilute chemical process lines, effluent treatment, and mildly corrosive process water service.
🏗️ EPC & Infrastructure
Bulk supply for government water supply projects, sewage treatment, irrigation canal structures, and industrial estate infrastructure.
🏭 Sugar & Distillery
CI or SS304 disc for process water, cooling water, and utility lines in sugar mills and ethanol distilleries at elevated process temperatures.
⚡ Power Plants
Cooling water pump discharge, auxiliary service water systems, and utility line isolation in thermal power plant balance of plant areas.
🏢 Commercial Buildings
CI disc + EPDM for high-rise chilled water and domestic water riser isolation, hotel and hospital HVAC systems, and institutional complexes.
How to Order — Share on WhatsApp or Email
1. Size — DN (mm) or NB (inches) · e.g. DN100 or 4″
2. Disc material — CI (standard, lower price) or SS304
3. Seat material — EPDM (standard) / NBR / PTFE / Viton
4. Pressure rating — PN10 (standard) or PN16
5. Operation — Lever (standard DN40–DN150) / Gear / Actuator
6. End type — Wafer (standard) or Lug
7. Quantity (Nos)
8. Flange drilling standard — ASME B16.5 / IS 1538 / DIN PN10 / PN16
9. Documentation required — hydro test cert / MTC / dimensional report
10. Delivery location
📱 WhatsApp: +91 93135 43530 | 📧 Email: [email protected]
Get Cast Iron Butterfly Valve Price — 2-Hour Response
CI Disc from ₹375 · SS304 Disc from ₹570 · DN40–DN600 · EPDM NBR PTFE Seat · PN10 PN16 · OEM Bulk · GST Invoice · Ready Stock DN40–DN150 · Pan India Dispatch
📲 WhatsApp for Price 📧 Email EnquiryWhy EPC Contractors & Traders Choose KELOR
Direct Manufacturer Pricing
Manufacturer-direct supply — ₹375 per piece (DN40 CI disc) vs ₹600+ from traders. Transparent price list published openly — no hidden margins.
Ready Stock — Fast Dispatch
DN40 to DN150 in CI disc + EPDM seat in ready stock at Ahmedabad. Dispatch within 2–3 working days of confirmed order and advance payment.
Full Documentation
GST invoice + E-Way bill on every shipment. Hydrostatic test certificate, MTC, and dimensional reports available for EPC and government orders.
Pan India Dispatch
Dispatching from Ahmedabad to Mumbai, Pune, Chennai, Bengaluru, Hyderabad, Delhi, Kolkata, and all states. Export (FOB Mundra) available.
OEM / Private Label
Supply under your brand name for traders and distributors. Custom marking, packaging, and documentation. MOQ applies — WhatsApp to discuss.
2-Hour Quote
WhatsApp size, disc, seat, and quantity — confirmed price and delivery within 2 business hours. No lengthy tender process for standard items.