SUPPLIER Krishna Industries Ahmedabad, Gujarat, India
INTRODUCTION
A Wafer Type Check Valve is a critical flow control component used across Indian industrial piping systems to prevent reverse flow and protect pumps, pipelines, compressors, and process equipment. Krishna Industries, based in Ahmedabad, Gujarat, India, supplies high-quality Wafer Type Check Valves engineered for durability, consistent sealing, and long service life under Indian operating conditions.
This product is widely known in the Indian market by related names such as wafer check valve, non return valve wafer type, single plate check valve, dual plate check valve, and wafer type NRV. These valves are compact, space-saving, and designed to be installed between standard flanges without requiring additional support. Their wafer-style construction reduces weight, lowers installation cost, and makes them ideal for both new installations and replacement projects.
Krishna Industries focuses entirely on Indian buyers including factories, EPC contractors, infrastructure companies, OEMs, pump manufacturers, water treatment plants, HVAC contractors, sugar mills, chemical plants, textile units, and industrial traders. Our Wafer Type Check Valves are supplied from Ahmedabad with consistent quality, reliable lead time, and competitive pricing suited for bulk procurement within India.
WHAT IS A WAFER TYPE CHECK VALVE
A Wafer Type Check Valve is an automatic valve that allows fluid to flow in one direction and automatically closes when the flow reverses. The valve operates without manual or external control and relies on flow pressure and gravity or spring mechanism to function.
The wafer design means the valve is installed directly between two flanges and held in place by flange bolts. This construction eliminates the need for long face-to-face dimensions and significantly reduces overall system weight. Wafer Type Check Valves are commonly used where space is limited and where frequent maintenance access is required.
WORKING PRINCIPLE
When fluid flows in the forward direction, pressure pushes the disc or plates open, allowing smooth flow with minimal pressure drop. When the flow stops or reverses, the disc or plates automatically return to the closed position, preventing backflow. This protects pumps and other equipment from damage caused by reverse flow, water hammer, and pressure surges.
Depending on the design, the valve may use a single disc, dual plates, or a spring-loaded mechanism to ensure quick closing response.
TYPES OF WAFER TYPE CHECK VALVES SUPPLIED
Krishna Industries supplies multiple configurations to meet Indian industry requirements.
Single Plate Wafer Check Valve This type uses a single disc mounted on a hinge. It is simple in construction, economical, and widely used in water supply, fire fighting, and general industrial services.
Dual Plate Wafer Check Valve Also known as dual door check valve, this design uses two spring-loaded plates that reduce slam and improve flow characteristics. It is preferred in higher pressure systems and critical applications.
Spring Loaded Wafer Check Valve This design uses a central disc with a spring for faster closing, making it suitable for vertical and horizontal installations where quick response is required.
MATERIAL OPTIONS
Krishna Industries offers Wafer Type Check Valves in materials suitable for Indian process conditions.
Body Materials Cast Iron Ductile Iron Carbon Steel Stainless Steel 304 Stainless Steel 316 Stainless Steel 316L
Disc Materials Stainless Steel Carbon Steel with coating Alloy Steel
Seat Options Metal to metal seat Soft seat with EPDM Soft seat with NBR PTFE seat for chemical compatibility
The selection of material depends on fluid type, temperature, pressure, and service conditions.
SIZE RANGE
Wafer Type Check Valves are supplied in a wide size range to suit Indian pipeline standards.
Typical size range 50 mm to 600 mm Larger sizes available on request for bulk orders
Pressure Ratings PN10 PN16 ANSI Class equivalents on request
APPLICATION AREAS IN INDIA
Wafer Type Check Valves supplied by Krishna Industries are widely used across Indian industries.
Water supply and distribution systems Sewage and effluent treatment plants Fire protection and hydrant systems HVAC systems in commercial buildings Chemical and process industries Sugar mills and distilleries Textile and dyeing units Power plants and utilities Pump discharge and suction lines Oil handling and fuel transfer systems
DESIGN ADVANTAGES
Compact and lightweight design Easy installation between flanges Low pressure drop Fast response to flow reversal Reduced water hammer effect Minimal maintenance requirement Cost-effective compared to swing check valves
INDIAN STANDARD COMPLIANCE
Valves supplied by Krishna Industries are manufactured as per commonly accepted Indian and international standards suitable for domestic projects. Face-to-face dimensions, drilling patterns, and pressure ratings are compatible with Indian piping systems used across Gujarat, Maharashtra, Rajasthan, Madhya Pradesh, and other states.
QUALITY CONTROL AND TESTING
Each Wafer Type Check Valve undergoes multiple quality checks before dispatch.
These checks ensure reliable performance at site and reduce installation issues.
WHY CHOOSE KRISHNA INDUSTRIES
Krishna Industries is a trusted industrial valve supplier located in Ahmedabad, Gujarat, India. Our focus is on supplying dependable flow control products to Indian buyers who value consistency, technical clarity, and competitive pricing.
Key strengths Strong supplier network in Ahmedabad Bulk order handling capability Stable pricing for traders and contractors Support for repeat and project-based orders Clear documentation and invoicing for Indian businesses
We understand Indian project timelines, procurement processes, and site challenges, making us a reliable sourcing partner.
PACKING AND DELIVERY
Valves are packed securely to avoid damage during domestic transportation. Standard packing includes individual protection, labeling, and palletized dispatch for bulk orders. Delivery is arranged across all major industrial regions in India.
MOQ POLICY
Minimum Order Quantity is 10 pieces. This MOQ policy is designed to support traders, contractors, and industrial buyers who require reliable bulk supply without unnecessary constraints.
LONG FORM TECHNICAL DESCRIPTION
Wafer Type Check Valves play a vital role in maintaining process efficiency and equipment safety. In Indian industrial environments where pump failures and pipeline damage can lead to costly downtime, a properly selected non return valve is essential.
The wafer construction minimizes face-to-face length, making it ideal for compact piping layouts commonly found in Indian factories and utility rooms. The reduced weight also lowers flange stress, which is particularly important in ductile iron and cast iron piping systems.
Dual plate designs reduce turbulence and improve flow coefficient, making them suitable for energy-efficient systems. Spring-assisted designs further enhance performance by ensuring immediate closure, which reduces the risk of pressure surge.
Krishna Industries works closely with Indian buyers to ensure the correct selection based on flow rate, pressure, temperature, and installation orientation.
INSTALLATION GUIDELINES
Install between matching flanges Ensure flow direction arrow matches pipeline flow Use correct gasket material Tighten bolts evenly in cross pattern Verify free movement of disc before commissioning
Proper installation ensures long service life and optimal performance.
MAINTENANCE REQUIREMENTS
Wafer Type Check Valves require minimal maintenance. Periodic inspection during plant shutdowns is sufficient. In soft seated designs, seat replacement may be required after long service depending on operating conditions.
FREQUENTLY ASKED QUESTIONS
FAQ 1 What is the minimum order quantity for Wafer Type Check Valve The minimum order quantity is 10 pieces.
FAQ 2 Are these valves suitable for Indian water supply systems Yes, these valves are widely used in municipal and industrial water systems across India.
FAQ 3 Do you supply single plate and dual plate designs Yes, Krishna Industries supplies both single plate and dual plate wafer check valves.
FAQ 4 What sizes are commonly available Standard sizes range from 50 mm to 600 mm. Larger sizes can be arranged on request.
FAQ 5 Which materials are best for chemical applications Stainless steel with PTFE seat is commonly recommended for chemical services.
FAQ 6 Can these valves be installed vertically Spring-loaded designs are suitable for vertical installation. Orientation should be confirmed during selection.
FAQ 7 Do these valves reduce water hammer Yes, dual plate and spring-assisted designs significantly reduce water hammer.
FAQ 8 Are these valves easy to install Yes, the wafer design allows quick installation between flanges without additional support.
FAQ 9 Do you supply to traders and contractors Yes, Krishna Industries actively supplies to Indian traders, contractors, and project buyers.
FAQ 10 Where is Krishna Industries located Krishna Industries is located in Ahmedabad, Gujarat, India.
CONCLUSION
The Wafer Type Check Valve supplied by Krishna Industries is a reliable, space-saving, and cost-effective solution for Indian industrial flow control requirements. With strong local sourcing, consistent quality checks, and a clear focus on Indian buyers, Krishna Industries stands as a dependable supplier for bulk and project-based valve requirements across India.
