Email: [email protected]
Phone: +91 93135 43530
Address: 133/1 Ground, Mansuri Block, Opp. Dudheshwar Water Tank, Ahmedabad-380004, Gujarat, India
Fire Fighting Check Valve (NRV) Manufacturer in India — CI Wafer Check Valve, Swing Check Valve | 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.
🔥 CI Fire Fighting Check Valve starting from ₹700/piece (DN50) — Bulk discount on 100+ pcs. Get factory price now.
📜 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 in Fire Systems
- Best Material for Fire Fighting Check Valves
- Seat Material Selection Guide
- Technical Specifications
- Dimensions — ØA, ØB, C (mm)
- Size-Wise Price Range
- Wafer vs Swing vs Dual Plate for Fire Fighting
- Key Advantages
- Why Fire Contractors Choose KELOR
- Payment & Warranty
- Sample Order Option
- Supply Coverage
- Frequently Asked Questions
Fire Fighting Check Valve — Product Photos
⚠️ Note: Actual product appearance may vary by size, material grade and seat selection. Contact us for specific product photos matching your fire fighting project requirement.
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 — whether it is a hydrant system, sprinkler system, spray system, or combined fire protection network — 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 fire protection 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 in Cast Iron (CI), SG Iron, WCB, SS304, SS316, CF8, CF8M and Bronze — covering every fire fighting application from residential buildings to petrochemical plants. Our valves conform to IS 5312-1, IS 776, API 594 design standards and are factory-tested per API 598.
Types of Check Valves Used in Fire Fighting Systems
Different fire fighting applications require different types of check valves (NRV). Selecting the correct type depends on pipe size, flow velocity, installation space and project specification:
| 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 type in Indian fire systems | 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) |
| Alarm Check Valve | Wet sprinkler system alarm valve with clapper and retarding chamber | 2″ to 8″ | Wet sprinkler system riser — activates alarm when water flows | Flanged / Grooved |
| Grooved Swing Check Valve | Swing disc in grooved-end body for quick installation | 2″ to 12″ | Projects using grooved piping systems for rapid installation | Grooved ends |
KELOR manufactures and supplies Wafer Check Valves (Single Plate) — the most widely specified check valve type in Indian fire fighting systems. For swing check valves, dual plate check valves, and alarm check valves, we source from our partner manufacturing network with full quality documentation.
Fire Fighting Standards & Compliance
Fire fighting check valves in India must conform to specific Indian and international standards. This section provides a comprehensive reference that most competitor pages do not cover. Understanding these standards helps purchase managers and fire consultants specify the correct valve for their project:
| Standard | Full Title | Applicability to Fire Fighting Check Valves |
|---|---|---|
| IS 5312-1 (2004) | Swing Check Type Reflux (Non-Return) Valves for Water Supply | PRIMARY — specifies materials, dimensions, pressure ratings and testing requirements for swing check type NRVs used in water supply including fire fighting systems. Covers CI, DI, and CS body check valves from DN50 to DN600. |
| IS 776 | Cast Iron Check Valves | PRIMARY — cast iron check valve specifications covering material grades, face-to-face dimensions, pressure-temperature ratings and test procedures. Referenced in most Indian fire tender specifications. |
| API 594 | Wafer and Wafer-Lug Check Valves | PRIMARY — international design standard for wafer type check valves (single plate and dual plate). Specifies face-to-face dimensions, pressure ratings, material requirements and testing. Most commonly specified standard in EPC fire fighting projects. |
| API 598 | Valve Inspection and Testing | TESTING — specifies hydrostatic shell test, seat test, and backseat test procedures. Every KELOR fire fighting check valve is tested per API 598 before dispatch. |
| NFPA 20 | Standard for Installation of Stationary Fire Pumps | REFERENCE — Section 4.15 mandates check valve on fire pump discharge. Requires minimum 2.4mm drain hole in clapper for pressure surge dampening. Two check valves required in sensation line, spaced minimum 1.5m apart. |
| NFPA 13 | Standard for Installation of Sprinkler Systems | REFERENCE — specifies alarm check valve and OS&Y valve requirements for wet sprinkler system risers. |
| TAC Manual | Tariff Advisory Committee Fire Protection Manual | MANDATORY in India — published by the Tariff Advisory Committee (now IRDAI), the TAC manual mandates fire protection system design standards for insurance certification. Referenced in virtually every government fire tender in India. |
| IS 903 (1993) | Fire Hose Delivery Couplings, Branch Pipe, Nozzles | SUPPORTING — related fire hose connection standards that ensure compatibility with hydrant system check valve installations. |
| IS 3844 (1989) | Code of Practice for Fire Safety in Industrial Buildings | REFERENCE — general fire safety code that mandates fire protection systems including valving in industrial buildings. |
🛡️ Why Standards Matter for Your Fire Fighting Project
Most Indian fire tenders and insurance-mandated fire protection specifications require check valves that conform to IS 5312-1, IS 776 or API 594. Additionally, TAC compliance is mandatory for insurance certification of fire protection systems in India. 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
All valves are factory-tested per API 598 and shipped with test certificates. For projects that specifically require UL Listed or FM Approved valves, please discuss at the time of inquiry — we can guide you on alternative sourcing options.
Where Are Check Valves Installed in Fire Fighting Systems?
A fire fighting check valve (NRV) is not a standalone component — it is installed at specific critical locations in the fire protection piping network. Understanding these installation points helps procurement teams order the correct quantity, size and type:
🚨 Fire Pump Discharge Line
A check valve (NRV) is mandatory on the fire pump discharge as per NFPA 20 Section 4.15. It prevents reverse flow from the fire main back into the pump when the pump stops. This is the most critical installation point — typically DN80 to DN300, CI body with EPDM seat, PN16 rating.
🌳 Sprinkler System Riser
An alarm check valve or wafer check valve is installed on the sprinkler system riser to isolate 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
Check valves are installed on individual hydrant lateral lines branching from the fire fighting ring main. This ensures that if one hydrant is opened, water does not flow backwards through other hydrant laterals. Typically DN50 to DN100.
💧 Fire Water Tank Outlet
A swing check valve or wafer check valve is installed at the fire water storage tank outlet / suction line. It prevents backflow from the pump suction line into the tank, maintaining prime for the fire pump. Typically DN100 to DN200.
🔧 Combined / Ring Main System
In combined fire fighting ring main systems (covering hydrants, sprinklers, monitors, and hose reels), check valves are installed at every branch take-off from the ring main to prevent cross-flow between zones. These are the highest-volume application — often 50-200 check valves per large project.
Best Material for Fire Fighting Check Valves
Material selection for fire fighting check valves depends on the fluid being handled (water vs. foam concentrate vs. seawater), the environment (indoor/outdoor/corrosive), and project specification. Here is a comprehensive guide:
| Material Grade | Body Material | Best For | Suitable Media | Avoid | Relative Cost |
|---|---|---|---|---|---|
| CI (Cast Iron) — FG 260 | Cast Iron | Fire fighting pump discharge, hydrant systems, sprinkler risers, water-based fire protection. THE standard material for fire fighting in India. | Water, air, non-corrosive fluids, foam concentrate (EPDM seat) | Seawater, aggressive chemicals, outdoor marine environments | Base (most economical) |
| SG Iron (Ductile Iron) | Spheroidal Graphite Iron | Higher pressure fire lines, high-rise buildings where extra strength is required, fire water mains with PN16+ rating | Water, air, neutral fluids | Corrosive media, seawater | ~1.2x CI |
| WCB / MS (Carbon Steel) | ASTM A216 WCB / Mild Steel | Oil & gas facility fire protection, high-temperature fire water systems, industrial process fire suppression | Oil, gas, water, steam, neutral fluids | Wet corrosive environments, chlorides | ~1.5x CI |
| SS 304 / CF8 | Stainless Steel 304 / CF8 casting | Pharmaceutical facility fire systems, food processing fire protection, offshore platform fire water (mild chloride) | Water, food-grade fluids, dilute chemicals | High chloride/seawater environments | ~2.5x CI |
| SS 316 / CF8M | Stainless Steel 316 / CF8M casting | Offshore fire water, seawater fire mains, chemical plant fire suppression, desalination plant fire systems | Seawater, chlorides, aggressive chemicals | Hydrochloric acid at high concentration | ~3x CI |
| Bronze / Gun Metal | Bronze alloy | Potable fire water systems (non-contaminating), marine fire protection, heritage buildings | Seawater, water (potable-safe) | High temperature above 120°C, strong acids | ~3-4x CI |
For 90% of Indian fire fighting projects, CI body with EPDM seat is the correct and most cost-effective specification. SS316/CF8M is only required for offshore, seawater or chemical plant fire systems. Always check the project fire protection specification document before ordering.
Seat Material Selection Guide — NBR vs EPDM vs Viton vs PTFE
The seat (also called seal or insert) is the elastomeric component that creates a bubble-tight seal when the check valve disc closes. Selecting the correct seat material is critical for fire fighting applications — it determines leak-tightness, temperature resistance, fluid compatibility and service life. This is the #1 question asked by purchase managers:
| Seat Material | Temperature Range | Best Fluids | Fire Fighting Application | Not Suitable For | Cost |
|---|---|---|---|---|---|
| EPDM (Ethylene Propylene Diene Monomer) | -40°C to +120°C | Water, steam, HVAC chilled water, dilute acids, alkalis, polar fluids | ✅️ FIRE FIGHTING STANDARD — pump discharge, hydrant, sprinkler, fire water ring main. Best for water-based fire protection. | Oil, fuel, petroleum, hydrocarbons (swells in oil) | Base |
| NBR (Nitrile Rubber / Buna-N) | -30°C to +100°C | Oil, fuel, petroleum, hydraulic fluid, mild chemicals | Foam-based fire fighting systems (AFFF/FFFP foam concentrate lines), oil depot fire protection | Steam, hot water above 80°C, ozone environments (degrades) | Base |
| Viton (FKM / Fluorocarbon) | -20°C to +200°C | Aggressive chemicals, oils, fuels, acids, high-temperature fluids | Chemical plant fire suppression, oil refinery fire water, high-temperature fire water systems | Ketones, esters, amines, hot water/steam at sustained temps (expensive overkill for standard water) | ~3x EPDM |
| PTFE (Teflon) | -70°C to +200°C | Virtually all chemicals, solvents, acids, bases, high-purity fluids | Pharmaceutical fire water (ultra-pure), semiconductor facility fire suppression, aggressive chemical fire systems | Low pressure (can cold-flow under sustained load), requires higher cracking pressure | ~4x EPDM |
💡 Quick Decision: For water-based fire fighting (90% of Indian projects) → EPDM seat. For foam-based fire fighting (oil depots, fuel stations) → NBR seat. For chemical plant fire systems → Viton or PTFE seat. If unsure, contact KELOR with your project details — we recommend the correct seat material at no extra cost.
Technical Specifications — Fire Fighting Check Valve (NRV)
| Parameter | Specification |
|---|---|
| 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 |
| End Connection | Wafer Type (clamp between flanges — ANSI / DIN / IS flange compatible) |
| Body Material Options | CI · SG Iron · WCB/MS · SS304 · SS316 · CF8 · CF8M · Bronze |
| Disc Material | SS304 / SS316 (standard) · CI / MS (CI body models) |
| Seat / Seal Options | EPDM (standard for fire fighting) · NBR · Viton FKM · PTFE |
| Spring | SS316 (all variants) |
| Operation | Automatic (flow-pressure operated) — spring-assisted closure |
| Flow Direction | Unidirectional — arrow marked on body |
| Installation Orientation | Horizontal or Vertical (upward flow) |
| Temperature Range | -10°C to +120°C (EPDM) · -30°C to +100°C (NBR) · -20°C to +200°C (Viton) · up to +200°C (PTFE) |
| Cracking Pressure | 5–15 mbar (depending on size and seat material) |
| Fire Standards Compliance | IS 5312-1 · IS 776 · NFPA 20 · TAC Manual guidelines |
| Certification | Factory-tested per API 598. MTC and test certificate with every valve. UL/FM not currently held — please specify if your project requires UL/FM listed valves. |
| HSN Code | 848180 |
| Country of Manufacture | India 🇮🇳 (Dispatched from Ahmedabad, Gujarat) |
Fire Fighting Check Valve Dimensions — ØA, ØB, C (mm)
The following dimension data is as per KELOR waffer check valve manufacturer drawing. ØA = face-to-face dimension, ØB = body outside diameter (flange bolt circle reference), C = body thickness. Verify with certified drawings before piping fabrication.
| DN | Size (inch) | ØA (mm) | ØB (mm) | C (mm) | Est. Weight (kg) |
|---|---|---|---|---|---|
| DN25 | 1″ | — | — | — | — |
| DN32 | 1¼″ | — | — | — | — |
| DN40 | 1½″ | 60 | 95 | 14 | ~1.5 |
| 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 |
| DN125 | 5″ | 92 | 190 | 18 | ~8.0 |
| DN150 | 6″ | 105 | 215 | 18 | ~10 |
| DN200 | 8″ | 125 | 270 | 20 | ~18 |
| DN250 | 10″ | 145 | 325 | 22 | ~28 |
| DN300 | 12″ | 160 | 380 | 24 | ~38 |
| DN350 | 14″ | 178 | 440 | 26 | ~52 |
| DN400 | 16″ | 200 | 495 | 28 | ~68 |
| DN450 | 18″ | 220 | 545 | 30 | ~85 |
| DN500 | 20″ | 235 | 600 | 32 | ~105 |
| DN600 | 24″ | 270 | 710 | 36 | ~140 |
⚠️ DN25 and DN32 dimensions are available on request. Dimensions may vary by ±2mm based on material grade. Weight is approximate for CI body. Contact KELOR for certified dimension drawings before piping fabrication.
Fire Fighting Check Valve — Size-Wise Price Range
The following price ranges are for CI body, EPDM seat, SS316 spring — the standard specification for fire fighting check valves in India. Prices are indicative and may vary based on quantity, material grade, seat selection and order value. Bulk orders (100+ pcs) qualify for 15–30% discount.
| Size | DN | Indicative Price (CI — per piece) | Indicative Price (SS304 — per piece) | Indicative Price (SS316 — per piece) |
|---|---|---|---|---|
| 1″ | DN25 | ₹500 – 800 | ₹1,160 – 1,800 | ₹1,500 – 2,500 |
| 2″ | DN50 | ₹700 – 1,200 | ₹1,800 – 3,000 | ₹2,500 – 4,500 |
| 2½″ | DN65 | ₹800 – 1,350 | ₹2,100 – 3,500 | ₹3,000 – 5,200 |
| 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 |
| 10″ | DN250 | ₹3,200 – 5,000 | ₹12,000 – 20,000 | ₹18,000 – 30,000 |
| 12″ | DN300 | ₹3,500 – 5,000 | ₹15,000 – 25,000 | ₹20,000 – 35,000 |
💰 Bulk / Tiered Pricing: 10–49 pcs: Standard price. 50–99 pcs: 10% discount. 100–499 pcs: 15–20% discount. 500+ pcs: 20–30% discount. Prices are negotiable based on project size, repeat orders and material grade. Contact us with your BOQ for best pricing.
Wafer Check Valve vs Swing Check Valve vs Dual Plate Check Valve for Fire Fighting
Fire protection engineers and purchase managers often compare these three check valve types when specifying fire fighting systems. Understanding the trade-offs helps you select the right valve for each installation point:
| Feature | Wafer Check Valve (Single Plate) | Swing Check Valve | Dual Plate Check Valve |
|---|---|---|---|
| Design | Single disc, spring-loaded, wafer body | Swinging disc, gravity-closure, flanged body | Two spring-loaded half-discs, wafer body |
| Face-to-Face | Shortest — saves pipe space | Longest (API 594 Table 3) | Short |
| Weight | Light — reduces support cost | Heavy — needs pipe support | Medium |
| Closure Speed | Fast (spring-assisted) | Slow (gravity-dependent) | Fastest (spring-assisted) |
| Water Hammer Protection | Good — spring closes before reverse flow | Poor — slow closure causes slam | Excellent — dual spring design |
| Pressure Drop | Low–Medium | Lowest | Medium |
| Installation | Wafer (no flanges needed) — fastest install | Flanged ends required — needs bolting | Wafer (no flanges needed) |
| Cost | Lowest — most economical | Medium | Higher |
| Fire Fighting Suitability | ✅️ Best for pump discharge, hydrant, sprinkler — most common in India | ✅️ Suitable for large mains, tank outlets | ✅️ Premium option for oil & gas, high-rise |
| Common Sizes in Fire | DN50 to DN300 (2″ to 12″) | DN80 to DN300 (3″ to 12″) | DN50 to DN300 (2″ to 12″) |
Key Technical Advantages of KELOR Fire Fighting Check Valves
- API 594 design with IS 5312-1 / IS 776 compliance — conforms to both international and Indian standards required by fire consultants, EPC contractors and insurance-mandated TAC specifications
- Spring-assisted fast closure — disc closes before reverse flow begins, preventing water hammer that can damage fire pump, piping and fittings in the fire fighting network
- Low cracking pressure (5–15 mbar) — minimal pressure loss during fire pump operation, ensuring maximum water delivery to hydrants and sprinklers when every second counts
- EPDM seat as standard for fire fighting — bubble-tight shutoff with water, compatible with foam concentrate (AFFF/FFFP), temperature range -40°C to +120°C covers all Indian climate conditions
- Compact wafer design — up to 60% shorter face-to-face than swing check valves, ideal for tight fire pump room installations and congested pipe racks
- Lightweight CI body — significantly lighter than flanged swing check valves, reducing pipe support requirements and installation cost
- Universal flange compatibility — fits ANSI 150, DIN PN10/PN16 and IS flange standards, no modification needed for any Indian fire fighting piping specification
- 9 body material options — CI, SG Iron, WCB/MS, SS304, SS316, CF8, CF8M, Bronze — one valve family for water-based, foam-based and chemical fire suppression systems
- Both horizontal and vertical installation — install in any orientation (vertical must be upward flow for spring-loaded models), giving fire system designers maximum layout flexibility
- Factory-tested per API 598 — every valve hydrostatically tested at 1.5x pressure rating before dispatch, with test certificate included
- NFPA 20 Section 4.15 compliant — design allows for 2.4mm drain hole in disc (on request) for pressure surge dampening as required by NFPA 20 fire pump installation standard
Fire Fighting Check Valve Manufacturer — Why EPC Contractors & Fire System Integrators Choose KELOR
Krishna Industries, trading as KELOR, is a Gujarat-based fire fighting check valve manufacturer and bulk supplier serving fire system integrators, EPC contractors, MEP companies, OEMs and government tender departments across India. Part of a manufacturing family with experience since 1985 — over 40 years of industrial valve expertise. Here is why procurement teams source fire fighting check valves from us:
🏭
Manufacturing Experience Since 1985
Part of Krishna Industries manufacturing family — over 40 years of industrial valve and piping component expertise. Factory-direct pricing with no unnecessary middleman margin.
📦
Fire Fighting Specialization
CI body with EPDM seat is our highest-volume product. Common fire fighting sizes (DN50, DN80, DN100, DN150) maintained in ready stock at Ahmedabad warehouse for urgent dispatch.
📄
GST Compliant + E-Way Bill
100% GST invoice with E-Way bill for every shipment. GSTIN: 24AKLPP6499B1ZT. Material test certificates (MTC), hydro test reports and dimension drawings included.
🚚
PAN India Fire Project Dispatch
Dispatching from Ahmedabad to Mumbai, Delhi, Chennai, Bangalore, Hyderabad, Kolkata, Pune and all project sites — 2–15 working days depending on size and quantity.
🔬
Test Certificates + TPI Support
API 598 hydrostatic test certificate with every order. Third-party inspection (TPI) coordination available for EPC projects and government fire tenders requiring independent inspection.
🌐
Export Capability
IEC: AKLPP6499B. Export supply available: FOB Mundra / Nhava Sheva. CIF / DAP terms on request. Export-worthy wooden crate packing for overseas fire protection projects.
🏆
OEM / Private Label Supply
Supply under your brand name for fire equipment traders and distributors. Custom marking and packaging. MOQ applies. Popular with fire safety equipment companies across India.
👥
MSME MICRO + Manufacturing + OBC
Registered MSME (MICRO — Manufacturing category) with OBC certificate. Eligible for government tender preference and purchase price preference in applicable 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). Fast quotation = faster PO = faster project delivery.
Payment Terms & Warranty
💳 Payment Terms
Standard Orders: 100% advance or 50% advance + 50% before dispatch.
EPC / Project Orders (₹2 Lakh+): 30% advance, 40% against production completion, 30% before dispatch. Negotiable based on order value and relationship.
Government Tenders: As per tender terms. We are GeM-registered (registration in progress).
Payment Methods: Bank transfer (NEFT/RTGS), UPI. GST invoice provided immediately upon payment.
🛡️ Warranty
Standard Warranty: 12 months from dispatch against manufacturing defects.
EPC / Bulk Project Orders (500+ pcs): 18–24 months warranty negotiable.
Warranty covers body casting defects, seat leakage, spring failure and disc malfunction under rated pressure and temperature conditions. Does not cover damage from misuse, improper installation, or handling beyond rated parameters.
Sample Order Option
📦 Need a Sample Before Bulk Order?
We understand that fire fighting projects require physical verification before committing to bulk procurement. KELOR offers sample orders of 1–2 pieces at sample cost for your inspection and approval.
Sample process: Share your required specification (size, DN, material, seat) on WhatsApp → We confirm sample availability and cost → You pay and receive the sample within 3–5 working days → Upon approval, place bulk order → Sample cost adjusted in bulk order.
📞 Contact us on WhatsApp: +91 93135 43530
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Share your BOQ — size, material, quantity, seat type and delivery location. We reply within 2 hours on WhatsApp.
📲 WhatsApp for Price ✉ 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, Ludhiana (Central & North India) · Surat, Vadodara, Rajkot, Jamnagar, Bhavnagar (Gujarat) and all other states.
Export supply also available: FOB Mundra / Nhava Sheva. CIF / DAP terms on request. IEC: AKLPP6499B. Check Valve (NRV) Manufacturer in India (KELOR), Ahmedabad — manufacturer and bulk (KELOR), Ahmedabad — manufacturer and bulk (KELOR), Ahmedabad — manufacturer and bulk (KELOR), Ahmedabad — manufacturer and bulk (KELOR), Ahmedabad — manufacturer and bulk (KELOR), Ahmedabad — manufacturer and bulk (KELOR), Ahmedabad — manufacturer and bulk Check Valve (NRV) Manufacturer in India Check Valve (NRV) Manufacturer in India
Frequently Asked Questions — Fire Fighting Check Valve (NRV)
What is a fire fighting check valve and why is it required?
A fire fighting check valve (also called fire NRV or non-return valve) is a one-way valve installed in fire protection piping to ensure water flows only from the pump toward the fire fighting equipment. It prevents reverse flow when the pump stops, protecting the pump from water hammer damage and maintaining system pressure. As per NFPA 20 (Section 4.15) and TAC Fire Protection Manual, a check valve is mandatory on every fire pump discharge line. Without it, backflow can drain the fire water tank and render the entire fire protection system useless during an emergency.
What material is best for fire fighting check valves?
For 90% of Indian fire fighting projects, Cast Iron (CI) body with EPDM seat is the standard and most cost-effective specification. CI is suitable for water, air and non-corrosive fire fighting fluids. It is the material specified in most fire tender documents, conforms to IS 776, and is available in ready stock at our Ahmedabad warehouse. For seawater fire systems, use SS316/CF8M. For oil depot fire protection (foam systems), use CI body with NBR seat.
What is the price of CI fire fighting check valve?
CI fire fighting check valves (Cast Iron body, EPDM seat, SS316 spring) start from approximately ₹700/piece for DN50 (2″). DN80 (3″) is approximately ₹900–1,500/piece, DN100 (4″) is approximately ₹1,200–2,000/piece, and DN150 (6″) is approximately ₹1,800–3,000/piece. Bulk orders (100+ pcs) qualify for 15–30% discount. Contact us with your BOQ for best pricing.
What is the difference between EPDM and NBR seat for fire fighting check valves?
EPDM is the standard seat for water-based fire fighting — hydrant systems, sprinkler systems, and fire water ring mains. EPDM has excellent water compatibility, temperature range from -40°C to +120°C, and is the most economical option. NBR (Nitrile) is used for foam-based fire fighting systems (AFFF/FFFP foam concentrate lines) at oil depots, fuel stations and petroleum facilities. NBR is compatible with oil and fuel but should not be used with steam or hot water above 80°C. For chemical plant fire systems, use Viton or PTFE seats.
Which Indian standards apply to fire fighting check valves?
The primary Indian standards are IS 5312-1 (2004) — Swing Check Type Reflux (Non-Return) Valves for Water Supply, and IS 776 — Cast Iron Check Valves. Additionally, API 594 (international design standard for wafer check valves) is the most commonly specified standard in EPC fire fighting projects. For testing, API 598 applies. The TAC (Tariff Advisory Committee) Fire Protection Manual and NFPA 20 govern fire pump installation requirements including mandatory check valve placement. All KELOR fire fighting check valves conform to these standards.
What sizes of fire fighting check valves are available?
KELOR manufactures and supplies fire fighting check valves (wafer type NRV) from 1″ (DN25) to 24″ (DN600) in CI, SG Iron, WCB/MS, SS304, SS316, CF8, CF8M and Bronze. The most commonly ordered fire fighting sizes are DN50 (2″), DN80 (3″), DN100 (4″) and DN150 (6″) in CI with EPDM seat — these are kept in ready stock at our Ahmedabad warehouse. Larger sizes (DN200 to DN600) are available on 7–15 working days lead time.
What is the minimum order quantity (MOQ) for fire fighting check valves?
The standard MOQ is 10 pieces per size and material grade. For fire fighting projects requiring urgent single-piece requirements, please contact us directly — we accommodate genuine project needs. Bulk project orders (100+ pcs) qualify for tiered pricing: 10–15% discount on 50–99 pcs, 15–20% discount on 100–499 pcs, and 20–30% discount on 500+ pcs.
What warranty do you offer on fire fighting check valves?
KELOR offers a standard 12-month warranty from dispatch date against manufacturing defects. This covers body casting defects, seat leakage, spring failure and disc malfunction under rated pressure and temperature conditions. For EPC project orders of 500+ pieces, we offer 18–24 months warranty (negotiable). The warranty does not cover damage from misuse, improper installation, or operation beyond rated pressure-temperature parameters.
What are the payment terms for fire fighting check valve orders?
Standard orders: 100% advance or 50% advance + 50% before dispatch. EPC / Project orders (₹2 Lakh+): 30% advance, 40% against production completion, 30% before dispatch (negotiable based on order value). Government tenders: As per tender terms. Payment methods: Bank transfer (NEFT/RTGS) and UPI. GST invoice provided immediately upon payment.
Do you supply UL/FM listed fire fighting check valves?
Our fire fighting check valves conform to API 594 design and are factory-tested per API 598 with test certificates. We currently do not hold UL or FM listing. If your project specification mandates UL Listed or FM Approved check valves, please inform us at the time of inquiry — we can discuss alternative options or guide you to certified sourcing partners.
What is the delivery time for fire fighting check valves?
Ready stock sizes (DN50, DN80, DN100, DN150 in CI with EPDM seat) dispatch within 2–3 working days. Standard orders dispatch in 7–10 working days. Bulk project orders (500+ pcs) require 15–20 working days. We dispatch via reputed transporters (VRL, DTDC Cargo, Maruti Courier) to all Indian project sites with door delivery.
Can I order a sample before placing a bulk fire fighting check valve order?
Yes. KELOR offers sample orders of 1–2 pieces at sample cost for your physical inspection and approval. The process is: share your specification on WhatsApp → we confirm availability and sample cost → you receive the sample in 3–5 working days → upon approval, place your bulk order. The sample cost is adjusted in your bulk order value.
Do you provide test certificates and inspection support for fire tenders?
Yes. Every KELOR fire fighting check valve ships with GST invoice, E-Way bill, material test certificate (MTC) and hydrostatic test certificate as per API 598. For EPC projects and government fire tenders requiring independent inspection, we coordinate Third-Party Inspection (TPI) at our works before dispatch. Certified dimension drawings are available on request. These documents satisfy TAC compliance requirements for insurance-mandated fire protection systems.
Do you export fire fighting check valves outside India?
Yes. KELOR has IEC (Import Export Code): AKLPP6499B and exports fire fighting check valves to the Middle East, Africa and Southeast Asia. We offer FOB Mundra and FOB Nhava Sheva terms as standard. CIF and DAP terms are available on request. Export-worthy wooden crate packing with proper labeling and documentation. Contact us with your country and port for CIF quotation.
Where is KELOR located and do you supply pan India?
Krishna Industries (KELOR) is located at 133/1 Ground Floor, Mansuri Block, Opp. Dudheshwar Water Tank, Devjipura, Ahmedabad – 380004, Gujarat, India. We supply PAN India — Maharashtra, Tamil Nadu, Karnataka, Telangana, Delhi NCR, West Bengal, Rajasthan, Madhya Pradesh, Uttar Pradesh, Punjab, Kerala and all other states. We also export internationally (FOB/CIF).