Email: [email protected]
Phone: +91 93135 43530
Address: 133/1 Ground, Mansuri Block, Opp. Dudheshwar Water Tank, Ahmedabad-380004, Gujarat, India
SS 304 Wafer Type Check Valve – Non Return Valve (NRV)
Compact, corrosion-resistant non-return valve for preventing reverse flow in industrial pipelines. SS 304 body, wafer-type design, PN10/PN16, 1″ to 12″. Ideal for water, fire, chemical, pharma, HVAC, and OEM applications across India.
Krishna Industries (KELOR), Ahmedabad — supplier of premium-quality SS 304 Wafer Type Check Valves (Non Return Valves). Compact wafer design for easy installation between flanges. Body & internals in Stainless Steel 304. Size range: 1″ to 12″ (DN25 to DN300). Pressure ratings: PN10 / PN16 / Class 150. Suitable for water, air, steam, oil, and mild chemicals. Low pressure drop, maintenance-free, corrosion-resistant, hygienic construction. GST invoice with test reports. Bulk stock available.
SS 304 wafer check valves are commonly installed alongside butterfly valves, ball valves, single plate check valves, and dual plate wafer check valves in Indian piping systems. They are preferred in applications where hygiene, corrosion resistance, and durability are critical. The wafer-type design reduces space requirement and installation cost, especially in compact piping layouts found in Indian industrial plants, water treatment facilities, and HVAC systems.
💰 SS 304 Wafer Check Valve (2″ PN10) starting from ₹350/piece — SS 316 from ₹550/pc — Bulk discount on 50+ pcs. WhatsApp RFQ ↗
Product Description – SS 304 Wafer Type Check Valve
Compact, corrosion-resistant non-return valve for preventing reverse flow in pipelines.
The Stainless Steel 304 Wafer Type Check Valve is a compact, corrosion-resistant non-return valve widely used across Indian industries for preventing reverse flow in pipelines. Designed for easy installation between flanges, this valve offers long service life, low pressure drop, and reliable performance in demanding operating conditions commonly found in Indian water treatment plants, chemical industries, pharmaceutical factories, food processing units, and HVAC systems.
Manufactured from high-quality SS 304 stainless steel, this wafer type NRV ensures excellent resistance to rust, mild chemicals, and moisture, making it suitable for Indian climatic conditions and diverse industrial environments. SS 304 provides good general-purpose corrosion resistance at a competitive price point, making it the most widely specified stainless steel grade for non-return valves in Indian water, utility, and light industrial applications.
The wafer-type design is a significant advantage over flanged-end check valves — it reduces the overall face-to-face dimension, cuts installation weight by up to 50%, eliminates the need for additional flanges, and simplifies maintenance removal. This makes SS 304 wafer check valves particularly suitable for compact piping layouts, skid-mounted equipment, OEM machinery, and retrofit installations where space and weight constraints are critical factors.
As a trusted stainless steel valve supplier in Ahmedabad, Gujarat, Krishna Industries supplies SS 304 wafer type check valves to traders, distributors, EPC contractors, fire safety companies, HVAC installers, OEM manufacturers, and industrial plant operators across India. Our valves are sourced from quality-assured manufacturing units and undergo strict inspection to meet Indian and international standards. Related keywords: wafer check valve, SS 304 NRV, non return valve India, wafer type check valve PN10, stainless steel check valve, wafer NRV supplier.
How a Wafer Type Check Valve Works
Automatic, self-acting backflow prevention — no power or manual intervention needed.
1
Forward Flow — Valve Opens
When fluid flows in the forward direction, the pressure differential lifts the internal disc or flap away from the seat, allowing unobstructed passage through the valve body with minimal pressure drop.
2
Flow Stops — Disc Closes
When flow velocity drops below the cracking pressure, the disc begins to return toward the seat by gravity or spring force, gradually restricting the flow passage.
3
Reverse Flow — Tight Seal
If reverse flow attempts to occur, the backpressure forces the disc firmly onto the seat, instantly sealing the flow path and preventing any backward flow that could damage pumps or equipment.
4
Wafer Installation
Valve clamps between two flanges using stud bolts — no special end preparation. The compact wafer body fits into tight piping spaces and allows easy removal for inspection.
Key Features of SS 304 Wafer Check Valve
Built for reliability, low maintenance, and long service life in Indian industrial conditions.
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Premium SS 304 Body & Internals
Body, disc, hinge, and all internal parts made from Stainless Steel 304 for uniform corrosion resistance and long service life.
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Compact Wafer Type Design
Fits between standard flanges without additional flanged ends — saves space, reduces weight, and cuts installation cost by up to 50%.
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Low Pressure Drop & Smooth Flow
Full-flow body design with streamlined interior minimizes pressure drop, ensuring efficient system operation and reduced pumping energy costs.
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Maintenance-Free Operation
Robust SS 304 construction with minimal moving parts ensures reliable long-term operation with virtually no maintenance requirements.
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Horizontal & Vertical Installation
Suitable for both horizontal and vertical (upward flow) piping orientations — providing flexibility in system design and installation.
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Corrosion-Resistant & Hygienic
SS 304 provides excellent resistance to rust, moisture, and mild chemicals. Hygienic surface finish suitable for food and pharma applications.
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PN10 / PN16 / Class 150 Options
Multiple pressure ratings available to suit different application requirements from low-pressure water to moderate industrial process conditions.
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Compatible with Butterfly Valves
Wafer-type design matches the same face-to-face dimension as butterfly valves — commonly installed in series for flow control and backflow prevention.
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Made for Indian Conditions
Handles Indian water quality, ambient temperatures, humidity, and the varying conditions found in industrial, municipal, and utility piping systems.
Technical Specifications
Complete specifications for informed procurement decisions.
| Parameter | Specification |
|---|---|
| Valve Type | Wafer Type Check Valve / Non Return Valve (NRV) |
| Body Material | Stainless Steel 304 (ASTM A351 CF8) |
| Disc Material | SS 304 |
| Hinge Pin | SS 304 / SS 316 |
| Seat Material | SS 304 / EPDM / NBR (as per media) |
| Size Range | 25 NB to 300 NB (1″ to 12″) |
| Pressure Rating | PN10 / PN16 / Class 150 |
| End Connection | Wafer Type (Between Flanges) |
| Operation | Automatic (Non-Return) |
| Flow Direction | Unidirectional (as per arrow on body) |
| Media | Water, Air, Steam, Oil, Mild Chemicals |
| Temperature Range | -10°C to +200°C (seat dependent) |
| Installation | Horizontal / Vertical (upward flow) |
| Flange Standard | ANSI B16.5 / EN 1092 / IS / DIN |
| Face-to-Face | As per EN 558 Series 14 / API 594 |
| Testing | Hydrostatic shell test, seat leakage test |
| Application | Water, Fire, Chemical, Pharma, Food, HVAC, OEM |
SS 304
Body Material
1″–12″
Size Range
PN16
Max Pressure Rating
Zero
Maintenance Required
Why SS 304 for Wafer Check Valves?
The most popular stainless steel grade for Indian industrial and utility applications.
Excellent General Corrosion Resistance
SS 304 provides reliable resistance to rust, moisture, and atmospheric corrosion — ideal for Indian water supply, HVAC, and utility piping systems.
Hygienic & Food-Grade Surface
Smooth, non-porous stainless steel surface meets hygiene requirements for pharmaceutical, food processing, and beverage industry piping.
Cost-Effective Stainless Steel
SS 304 delivers the optimal balance of corrosion resistance, mechanical strength, and cost — making it the most economical stainless choice for NRVs.
Handles Mild Chemicals
Suitable for water, air, steam, oil, and mild chemical services commonly encountered in Indian process and utility piping environments.
Widely Available & Stocked
SS 304 is the most widely stocked and available stainless steel grade in India — ensuring faster delivery and competitive pricing for buyers.
Applications in Indian Industries
Extensively used across critical infrastructure and industrial piping systems in India.
💧 Water Supply & Treatment Plants
Installed in municipal water pipelines, pumping stations, RO plants, and distribution networks to prevent reverse flow and protect pumps.
🔥 Fire Fighting & Sprinkler Systems
Critical NRV in fire hydrant lines, sprinkler networks, and fire pump discharge lines where preventing backflow is essential for system safety.
🧪 Chemical & Process Industries
SS 304 body handles mild chemicals, solvents, and process fluids in chemical plants, dye units, and specialty chemical manufacturing.
💊 Pharmaceutical & Food Processing
Hygienic SS 304 construction meets pharma and food-grade requirements for purified water, CIP lines, and food product piping.
❄ HVAC & Utility Pipelines
Used in chilled water, hot water, condenser water, and cooling tower circuits to maintain flow direction and prevent system damage.
⚙ OEM Machinery & Industrial Equipment
Compact wafer design is ideal for integration into OEM equipment, skid-mounted systems, packaged pump sets, and industrial machinery.
⛽ Oil, Gas & Fuel Systems
Suitable for light oil, diesel, and fuel line applications where corrosion-resistant non-return flow control is required.
🌐 General Industrial Pipelines
Versatile NRV for any industrial piping system requiring reliable, low-maintenance backflow prevention with compact wafer-type installation.
Wafer Type vs Flanged Check Valve
Understanding the key differences to make the right selection for your piping system.
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Wafer: 50% Lighter
No integral flanges means significantly lower weight — easier handling, reduced shipping cost, and less structural support required.
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Wafer: Compact Footprint
Shorter face-to-face dimension saves valuable piping space — critical in compact plant layouts, skids, and retrofit installations.
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Wafer: Lower Cost
Eliminates two flanges per valve — reduces material cost, machining cost, and gasket cost. Overall installed cost is significantly lower.
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Wafer: Faster Installation
Clamped between existing flanges with stud bolts — no welding, no flange facing, and no special alignment. Reduces installation time by 40%.
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Wafer: Easy Removal
Loosen flange bolts and slide the valve out — no cutting or welding required for maintenance, inspection, or replacement.
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Butterfly Valve Compatible
Same face-to-face dimension as wafer butterfly valves — allows direct interchange and series installation in the same piping spool.
Indicative Price Guide
💰 SS 304 Wafer Type Check Valve — Non Return Valve
1″ to 1-1/2″ SS 304 PN10
₹350 – ₹900 / pc
Ready Stock · Bulk Available
2″ to 3″ SS 304 PN10
₹700 – ₹1,800 / pc
Ready Stock · Project Pricing
4″ to 6″ SS 304 PN10
₹1,500 – ₹4,500 / pc
Factory Price · Bulk Discount
8″ to 12″ SS 304 PN10
₹3,500 – ₹15,000 / pc
Made to Order · Project Price
SS 316 Upgrade (Any Size)
Add 25–40% to SS 304 price
Premium corrosion resistance
PN16 / Class 150 Upgrade
Price on request
Higher pressure rating
* Prices are indicative and may vary based on size, pressure rating, material grade, order quantity, and current market rates. Contact us for confirmed quotation with GST invoice.
Quality Assurance & Testing
Every valve inspected and tested to ensure reliable performance in critical applications.
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Hydrostatic Shell Test
Every valve body tested at 1.5x rated pressure to verify shell strength and casting integrity before dispatch from our Ahmedabad warehouse.
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Backflow Seat Leakage Test
Seat tightness verified under reverse pressure to confirm reliable sealing — ensuring no backflow leakage in installed piping systems.
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Visual & Dimensional Inspection
Thorough inspection for casting quality, surface finish, disc movement, seat alignment, and dimensional accuracy per applicable standards.
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Test Certificates Available
Manufacturer test certificates (MTC as per EN 10204) and hydrostatic test reports available on request for project documentation compliance.
Why Buy from Krishna Industries – Ahmedabad
Trusted industrial valve supplier from India’s largest valve manufacturing hub.
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Ahmedabad-Based, PAN-India Supply
Strategically located in Gujarat’s industrial hub with fast logistics to Mumbai, Delhi, Chennai, Pune, Kolkata, and all major cities.
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Competitive Factory Pricing
Direct-from-factory pricing with no middlemen. GST invoice on every order. Best prices for bulk orders, fire fighting projects, and OEM buyers.
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Complete Documentation
GST invoice, material test certificates, hydrostatic test reports, and dispatch documentation for seamless procurement compliance.
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Fast Dispatch & Logistics
Ready stock in common sizes dispatched within 1-3 working days. E-way bill and transport tracking provided for all shipments.
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Trusted by 500+ Buyers
Long-term supplier to water contractors, fire safety firms, HVAC installers, OEMs, EPC contractors, and industrial buyers across 20+ states.
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Dedicated Technical Support
Our team assists with valve sizing, pressure class selection, material recommendation (SS 304 vs SS 316), and installation guidance.
📍 Supplier Details — Krishna Industries (KELOR)
Company NameKRISHNA INDUSTRIES
BrandKELOR
LocationAhmedabad, Gujarat – 380004
GSTIN24AKLPP6499B1ZT
IEC CodeAKLPP6499B
RegistrationMSME / UDYAM Certified
ISOISO 9001:2015 Certified
Email[email protected]
📦 Minimum Order Quantity (MOQ)
Standard MOQ: 10 Nos
Mixed sizes allowed within MOQ
GST invoice with wholesale pricing
OEM / Contractor
MOQ 10 pcs · Project pricing
Test reports + dispatch documentation
Bulk Order (50+ pcs)
Special factory discount
Dedicated account manager
Frequently Asked Questions (FAQ)
Quick answers to common queries about SS 304 Wafer Type Check Valves.
What is a stainless steel 304 wafer type check valve?
It is a non-return valve (NRV) made from SS 304 stainless steel that allows flow in one direction and automatically prevents reverse flow in the pipeline. The wafer-type design means the valve has no integral flanges — it is installed between two flanges by clamping with stud bolts and nuts. This compact, lightweight design makes it one of the most popular check valve styles used in Indian industrial, water, and utility piping systems. The SS 304 body provides excellent corrosion resistance for water, mild chemicals, and general industrial media.
Is SS 304 suitable for Indian water and industrial applications?
Yes, SS 304 is the most widely used stainless steel grade in India for water supply, water treatment, HVAC, and general industrial applications. It offers good corrosion resistance against moisture, atmospheric conditions, and mild chemicals commonly encountered in Indian piping environments. SS 304 is also cost-effective compared to SS 316, making it the preferred choice for non-critical and general-purpose applications where excellent corrosion resistance is needed but extreme chemical resistance is not required.
Can this valve be used in fire fighting systems?
Yes, SS 304 wafer type check valves are commonly and extensively used in fire protection and sprinkler systems across India. They are installed on fire pump discharge lines, fire hydrant risers, sprinkler system feed mains, and combined fire fighting networks. The wafer-type compact design is particularly advantageous in fire pump rooms where space is limited. SS 304 provides excellent corrosion resistance in stagnant water conditions typically found in fire protection piping that may remain idle for extended periods.
What is the difference between wafer type and flanged check valves?
Wafer type check valves are lighter, more compact, and cost-effective compared to flanged check valves. A wafer valve has no integral flanges — it clamps between two existing flanges, reducing the face-to-face dimension by up to 60% and the weight by up to 50%. This means lower installed cost (no extra flanges or gaskets needed), faster installation (just bolt between flanges), and easier removal for maintenance. Flanged check valves have their own flanged ends that bolt to the mating pipe flanges — they are heavier and more expensive but may be preferred for certain high-pressure or high-temperature applications.
Can it be installed vertically?
Yes, depending on the design and flow direction, SS 304 wafer check valves can be installed both horizontally and vertically. For vertical installation, the flow direction must be upward (bottom to top) so that gravity assists the disc in closing properly. Vertical downward flow installation is generally not recommended as gravity would oppose the opening action and may prevent the valve from fully opening. Always verify the flow direction arrow on the valve body and ensure it matches the intended flow direction before installation.
What sizes are commonly available in India?
Common sizes range from 25 NB (1 inch) to 300 NB (12 inch) with PN10 and PN16 pressure ratings. The most commonly stocked and demanded sizes in India are 1″ (DN25), 1-1/2″ (DN40), 2″ (DN50), 3″ (DN80), 4″ (DN100), and 6″ (DN150). These sizes cover the majority of water, fire, HVAC, and general industrial applications. Larger sizes up to 12″ (DN300) are available and commonly used in water treatment plants, main distribution lines, and industrial process piping. Non-standard sizes can be arranged on request.
Is this valve suitable for steam applications?
SS 304 wafer type check valves can handle low to moderate steam pressure applications. For typical low-pressure steam (up to PN10/PN16), SS 304 with appropriate seat material (metallic or high-temperature elastomer) provides adequate performance. However, for high-temperature steam applications (above 200°C) or where pitting corrosion from chlorinated steam condensate is a concern, SS 316 may be recommended for superior high-temperature corrosion resistance. Contact us with your specific steam conditions for proper material and seat selection.
Does wafer type check valve require regular maintenance?
No, SS 304 wafer type check valves are generally maintenance-free when operated under recommended conditions. The simple internal mechanism with minimal moving parts, combined with the corrosion-resistant SS 304 construction, ensures reliable long-term operation without the need for routine servicing. In most Indian water, HVAC, and utility applications, these valves operate reliably for many years without any intervention. If periodic inspection is desired (for example in critical fire fighting systems), the wafer design allows easy removal by loosening flange bolts and sliding the valve out without cutting the pipeline.
Can this valve be used with butterfly valves?
Yes, wafer type check valves are commonly installed in series with butterfly valves in the same piping system. In fact, they are frequently installed directly after butterfly valves to provide backflow prevention while the butterfly valve handles flow control (throttling/isolation). The wafer-type check valve shares the same face-to-face dimension standard as wafer butterfly valves, making them dimensionally compatible for installation in the same piping spool. This combination of butterfly valve + wafer check valve is a very common piping arrangement in Indian water distribution, HVAC, and industrial systems.
Do you provide test certificates for this valve?
Yes, manufacturer test certificates (MTC) as per EN 10204 Type 3.1 can be provided with every supply on request. The certificate includes chemical composition and mechanical properties of the SS 304 material. Hydrostatic shell test reports and seat leakage test reports are also available. These documents are essential for EPC project documentation, third-party inspection requirements, government tender compliance, and quality management system records. Contact us at the time of order placement to specify your documentation requirements.
🛠 Related Products — KELOR Industrial Valves
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Contact Krishna Industries, Ahmedabad for competitive pricing, technical assistance, and fast dispatch of SS 304 Wafer Type Check Valves to your location anywhere in India.