Fire Fighting Check Valve (NRV) Manufacturer in India — CI Wafer & Swing Check Valves | 1″ to 24″ | API 594, IS 5312-1 | Since 1985
Krishna Industries (KELOR), Ahmedabad — manufacturer and bulk supplier of Fire Fighting Check Valves (non-return valves / NRV) in Cast Iron, SG Iron, WCB, SS304, SS316, CF8, CF8M, and Bronze. Sizes: 1″ to 24″ (DN25 to DN600). API 594 design, PN10/PN16, ANSI 150. Conforming to IS 5312-1, IS 776, NFPA 20, and TAC guidelines. Supplying fire system integrators, EPC contractors, OEMs, and government tenders across India since 1985.
CI Wafer Check Valve with EPDM seat — the standard for fire fighting pump discharge, hydrant systems, and sprinkler networks across India. Ready stock available. GST invoice with E-Way bill. PAN India dispatch.
📜 On This Page
- Product Photos
- What is a Fire Fighting Check Valve?
- Types of Check Valves in Fire Fighting
- Fire Fighting Standards & Compliance
- Where Check Valves Are Installed
- Best Material Selection Guide
- Seat Material: EPDM vs NBR vs Viton
- Technical Specifications
- Dimensions — ØA, ØB, C (mm)
- Size-Wise Price Range
- Wafer vs Swing vs Dual Plate
- Why Fire Contractors Choose KELOR
- Frequently Asked Questions
Fire Fighting Check Valve — Product Photos
What is a Fire Fighting Check Valve?
A fire fighting check valve (also called fire fighting non-return valve, fire NRV, or fire pump check valve) is a critical safety valve installed in fire protection piping systems to ensure that water flows in only one direction — from the fire pump or water source toward the fire fighting equipment. When the pump stops or flow reverses, the check valve closes automatically, preventing backflow that could cause water hammer, pump damage, or depressurization of the entire fire fighting network.
In every fire fighting system, a check valve (NRV) is mandatory on the fire pump discharge line as per NFPA 20 (Section 4.15) and TAC (Tariff Advisory Committee) Fire Protection Manual. Without a properly functioning check valve, reverse flow can damage the fire pump, drain the fire water tank, and render the entire system inoperable during an emergency.
As a leading fire fighting check valve manufacturer in India, KELOR supplies wafer type, swing type, and dual plate check valves conforming to IS 5312-1, IS 776, and API 594 design standards, factory-tested per API 598.
Types of Check Valves Used in Fire Fighting Systems
| Type | Design | Size Range | Best For in Fire Fighting | End Connection |
|---|---|---|---|---|
| Wafer Check Valve (Single Plate) | Spring-loaded single disc, clamped between flanges | 1″ to 24″ | Pump discharge, hydrant laterals, sprinkler risers — most common in India | Wafer (between ANSI/DIN/IS flanges) |
| Swing Check Valve | Swinging disc, gravity-assisted closure | 2″ to 24″ | Large water mains, fire water storage tank outlets, high-flow-rate lines | Flanged ends |
| Dual Plate Check Valve | Two spring-loaded half-discs, wafer body | 2″ to 24″ | Oil & gas fire protection, high-rise buildings where water hammer protection is critical | Wafer (between flanges) |
KELOR specializes in Wafer Check Valves (Single Plate) — the most widely specified check valve type in Indian fire fighting systems.
Fire Fighting Standards & Compliance
| Standard | Applicability to Fire Fighting Check Valves |
|---|---|
| IS 5312-1 (2004) | PRIMARY — specifies materials, dimensions, pressure ratings, and testing for swing check type NRVs used in water supply including fire fighting systems. |
| IS 776 | PRIMARY — cast iron check valve specifications covering material grades, face-to-face dimensions, and test procedures. Referenced in most Indian fire tender specifications. |
| API 594 | PRIMARY — international design standard for wafer type check valves. Most commonly specified standard in EPC fire fighting projects. |
| API 598 | TESTING — specifies hydrostatic shell test, seat test, and backseat test procedures. Every KELOR valve is tested per API 598 before dispatch. |
| NFPA 20 | REFERENCE — Section 4.15 mandates check valve on fire pump discharge. Requires minimum 2.4mm drain hole in clapper for pressure surge dampening. |
| TAC Manual | MANDATORY in India — published by the Tariff Advisory Committee, mandates fire protection system design standards for insurance certification. |
🛡️ Why Standards Matter for Your Fire Fighting Project
Most Indian fire tenders and insurance-mandated specifications require check valves conforming to IS 5312-1, IS 776, or API 594. When you source from KELOR, every valve comes with:
- Material Test Certificate (MTC) as per EN 10204 Type 3.1
- Hydrostatic test certificate as per API 598
- Dimension certificate and certified engineering drawings
- Third-party inspection (TPI) coordination for EPC and government tender orders
Where Are Check Valves Installed in Fire Fighting Systems?
🚨 Fire Pump Discharge Line
Mandatory per NFPA 20 Section 4.15. Prevents reverse flow from the fire main back into the pump. Typically DN80 to DN300, CI body with EPDM seat, PN16 rating.
🌳 Sprinkler System Riser
Isolates the sprinkler network from the fire main. Prevents water drain-back from sprinkler piping when the system is not activated. Typically DN65 to DN150.
🚨 Hydrant Lateral Connection
Ensures that if one hydrant is opened, water does not flow backwards through other hydrant laterals. Typically DN50 to DN100.
💧 Fire Water Tank Outlet
Prevents backflow from the pump suction line into the tank, maintaining prime for the fire pump. Typically DN100 to DN200.
Best Material for Fire Fighting Check Valves
| Material Grade | Best For | Suitable Media | Relative Cost |
|---|---|---|---|
| CI (Cast Iron) — FG 260 | Fire fighting pump discharge, hydrant systems, sprinkler risers. THE standard material for fire fighting in India. | Water, air, non-corrosive fluids, foam concentrate (EPDM seat) | Base (Most Economical) |
| SG Iron (Ductile Iron) | Higher pressure fire lines, high-rise buildings, fire water mains with PN16+ rating. | Water, air, neutral fluids | ~1.2x CI |
| SS 304 / CF8 | Pharmaceutical facility fire systems, food processing fire protection. | Water, food-grade fluids, dilute chemicals | ~2.5x CI |
| SS 316 / CF8M | Offshore fire water, seawater fire mains, chemical plant fire suppression. | Seawater, chlorides, aggressive chemicals | ~3x CI |
For 90% of Indian fire fighting projects, CI body with EPDM seat is the correct and most cost-effective specification.
Seat Material Selection Guide — NBR vs EPDM vs Viton vs PTFE
| Seat Material | Best Fluids | Fire Fighting Application |
|---|---|---|
| EPDM | Water, steam, HVAC chilled water, dilute acids | ✅️ FIRE FIGHTING STANDARD — pump discharge, hydrant, sprinkler, fire water ring main. |
| NBR (Buna-N) | Oil, fuel, petroleum, hydraulic fluid | Foam-based fire fighting systems (AFFF/FFFP foam concentrate lines), oil depot fire protection. |
| Viton (FKM) | Aggressive chemicals, oils, fuels, high-temp fluids | Chemical plant fire suppression, oil refinery fire water. |
| PTFE (Teflon) | Virtually all chemicals, solvents, high-purity fluids | Pharmaceutical fire water, semiconductor facility fire suppression. |
Technical Specifications — Fire Fighting Check Valve (NRV)
| Valve Type | Single Plate Wafer Check Valve (Non-Return Valve / NRV) for Fire Fighting |
| Design Standard | API 594 / BS EN 16668 / IS 5312-1 / IS 776 |
| Testing Standard | API 598 / BS EN 12266 |
| Size Range | 1″ to 24″ (DN25 to DN600) |
| Pressure Rating | PN10 / PN16 / ANSI Class 150 |
| Body Material Options | CI · SG Iron · WCB/MS · SS304 · SS316 · CF8 · CF8M · Bronze |
| Seat / Seal Options | EPDM (standard for fire fighting) · NBR · Viton FKM · PTFE |
| Fire Standards Compliance | IS 5312-1 · IS 776 · NFPA 20 · TAC Manual guidelines |
| HSN Code | 848180 |
Fire Fighting Check Valve Dimensions — ØA, ØB, C (mm)
| DN | Size (inch) | ØA (mm) | ØB (mm) | C (mm) | Est. Weight (kg) |
|---|---|---|---|---|---|
| DN50 | 2″ | 60 | 105 | 14 | ~2.0 |
| DN65 | 2½″ | 67 | 120 | 16 | ~3.0 |
| DN80 | 3″ | 73 | 135 | 16 | ~3.5 |
| DN100 | 4″ | 79 | 160 | 16 | ~5.0 |
| DN150 | 6″ | 105 | 215 | 18 | ~10 |
| DN200 | 8″ | 125 | 270 | 20 | ~18 |
| DN250 | 10″ | 145 | 325 | 22 | ~28 |
| DN300 | 12″ | 160 | 380 | 24 | ~38 |
Fire Fighting Check Valve — Size-Wise Price Range
Prices below are for CI body, EPDM seat, SS316 spring. Bulk orders (100+ pcs) qualify for 15–30% discount.
| Size | DN | Indicative Price (CI) | Indicative Price (SS304) | Indicative Price (SS316) |
|---|---|---|---|---|
| 2″ | DN50 | ₹700 – 1,200 | ₹1,800 – 3,000 | ₹2,500 – 4,500 |
| 3″ | DN80 | ₹900 – 1,500 | ₹2,500 – 4,000 | ₹3,500 – 6,000 |
| 4″ | DN100 | ₹1,200 – 2,000 | ₹3,500 – 5,800 | ₹5,000 – 8,000 |
| 6″ | DN150 | ₹1,800 – 3,000 | ₹5,000 – 8,000 | ₹7,500 – 12,000 |
| 8″ | DN200 | ₹2,500 – 4,000 | ₹8,000 – 15,000 | ₹12,000 – 20,000 |
Why Fire Contractors Choose KELOR
Since 1985
Part of Krishna Industries manufacturing family — over 40 years of industrial valve expertise. Factory-direct pricing.
Ready Stock
Common fire fighting sizes (DN50, DN80, DN100, DN150) maintained in ready stock at Ahmedabad warehouse for urgent dispatch.
GST + E-Way Bill
100% GST invoice with E-Way bill. Material test certificates (MTC) and hydro test reports included.
PAN India Dispatch
Dispatching from Ahmedabad to Mumbai, Delhi, Chennai, Bangalore, Hyderabad, Kolkata, Pune, and all project sites in 2–15 working days.
TPI Support
API 598 hydrostatic test certificate with every order. Third-party inspection coordination available for government fire tenders.
2-Hour WhatsApp Response
Share your fire fighting BOQ on WhatsApp. We respond with item-wise pricing within 2 hours during business hours (11 AM to 8 PM IST).
🔗 Related Products from KELOR
Wafer Check Valve (Full Range) Dual Plate Check Valve Swing Check Valve Fire Hydrant Valve🔥 Need Factory Price for Fire Fighting Check Valves?
Share your BOQ — size, material, quantity, seat type, and delivery location. We reply within 2 hours on WhatsApp.
💬 WhatsApp Inquiry ✉ Email InquirySupply Coverage — PAN India Fire Fighting Projects
KELOR fire fighting check valves are dispatched from our Ahmedabad warehouse to fire fighting project sites across all major Indian cities: Mumbai, Pune, Nashik, Nagpur (Maharashtra) · Chennai, Coimbatore, Bengaluru, Hyderabad (South India) · Delhi, Noida, Gurugram, Faridabad (NCR) · Kolkata (East India) · Jaipur, Indore, Lucknow, Kanpur (Central & North India) · Surat, Vadodara, Rajkot, Jamnagar (Gujarat).
Export supply also available: FOB Mundra / Nhava Sheva. CIF / DAP terms on request. IEC: AKLPP6499B.