Swing Check Valve ( Wafer Style )

Description

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SWING CHECK VALVE – WAFER TYPE | PN10 / PN16 / CLASS 150
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Supplier & Manufacturer: Krishna Industries
Location: Ahmedabad, Gujarat, India
Export Supply: Yes
Testing: Manufacturer Test Certificate (MTC) & Third-Party Inspection Available

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INTRODUCTION – SWING CHECK VALVE WAFER TYPE
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A Swing Check Valve Wafer Type is one of the most widely used non-return valves in industrial piping systems where prevention of reverse flow is critical. Designed to allow fluid to flow in one direction only, this valve automatically closes when backflow occurs, protecting pumps, compressors, pipelines, and other costly equipment from damage.

Krishna Industries, based in Ahmedabad, Gujarat, India, is a reliable supplier and manufacturer of Swing Check Valves – Wafer Type for Indian and export markets. Our valves are engineered to meet demanding service conditions across water treatment plants, HVAC systems, fire protection networks, chemical processing units, oil & gas pipelines, power plants, sugar factories, paper & pulp industries, pharmaceuticals, and general industrial utilities.

This wafer-type swing check valve is compact, lightweight, and cost-effective compared to conventional flanged swing check valves. It is specifically designed to be installed between two flanges, saving space and reducing overall piping weight without compromising performance or reliability.

In Indian industrial applications, wafer check valves, swing check valves, dual plate check valves, non-return valves, and butterfly valves are frequently specified together. Our swing check valve wafer type complements these systems by ensuring smooth flow, low pressure drop, and dependable backflow prevention.

Krishna Industries offers Swing Check Valves in PN10, PN16, and Class 150 pressure ratings with a wide range of materials including Aluminium Bronze, Cast Iron (CI), Mild Steel (MS), Stainless Steel 304, and Stainless Steel 316. Seats are available in Nitrile (NBR), PTFE, EPDM, and Viton to suit different media and temperature requirements.

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WHAT IS A SWING CHECK VALVE – WAFER TYPE?
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A swing check valve is an automatic valve that operates using a hinged disc. When fluid flows in the forward direction, the disc swings open. When flow stops or reverses, the disc swings back to the seat, forming a tight seal and preventing reverse flow.

In wafer type construction, the valve body is designed to fit between two pipe flanges without requiring bolts through the valve body. This design reduces installation space, material cost, and overall valve weight.

Key characteristics of a wafer type swing check valve:
– Automatic operation (no actuator required)
– Low maintenance
– Simple and robust design
– Suitable for horizontal or vertical (upward flow) installation
– Ideal for water, air, oil, gas, and chemical services

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PRODUCT SPECIFICATIONS
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Product Name:
Swing Check Valve – Wafer Type

Pressure Rating:
– PN10
– PN16
– Class 150#

Body Material Options:
– Aluminium Bronze
– Cast Iron (CI)
– Mild Steel (MS)
– Stainless Steel 304 (SS 304)
– Stainless Steel 316 (SS 316)

Seat Material Options:
– Nitrile (NBR)
– PTFE
– EPDM
– Viton (FKM)

Design & Manufacturing:
– Wafer Type Construction
– Can be manufactured as per customer drawing or design
– Suitable for Indian and international standards

Testing & Certification:
– Manufacturer Test Certificate (MTC)
– Third Party Testing Certificate (on request)
– Hydrostatic pressure testing
– Leakage and functional testing

Supply Scope:
– Domestic supply across India
– Export supply worldwide

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WHY CHOOSE WAFER TYPE SWING CHECK VALVE?
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1. Space Saving Design
Wafer type valves require significantly less space than flanged check valves, making them ideal for compact piping layouts and skid-mounted systems.

2. Cost Effective
Reduced material usage and simpler installation result in lower overall project cost.

3. Low Pressure Drop
Swing disc design ensures minimal obstruction to flow, reducing energy loss and improving system efficiency.

4. Automatic Operation
No external power or manual operation required, ensuring fail-safe performance.

5. Versatile Material Options
Suitable for a wide range of fluids, temperatures, and industrial environments.

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APPLICATIONS IN INDIAN INDUSTRIES
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Krishna Industries supplies swing check valves wafer type for the following applications:

– Water Treatment Plants
– Municipal Water Supply
– Sewage & Effluent Treatment Plants
– Fire Fighting Systems
– HVAC Systems
– Cooling Water Circuits
– Power Plants
– Chemical & Process Industries
– Oil & Gas Pipelines
– Refineries
– Sugar Mills
– Paper & Pulp Industries
– Pharmaceutical Plants
– Food & Beverage Utilities
– General Industrial Piping

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MATERIAL SELECTION GUIDE
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Cast Iron (CI):
– Economical option
– Suitable for water and non-corrosive fluids
– Commonly used in municipal and utility services

Mild Steel (MS):
– Higher strength than CI
– Suitable for moderate pressure and temperature
– Widely used in industrial pipelines

Stainless Steel 304:
– Good corrosion resistance
– Suitable for water, air, and mild chemicals
– Used in food, pharma, and clean applications

Stainless Steel 316:
– Excellent corrosion resistance
– Suitable for chemicals, saline water, and aggressive media
– Preferred for export and critical applications

Aluminium Bronze:
– Superior resistance to seawater and marine environments
– Suitable for offshore, marine, and coastal applications

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SEAT MATERIAL OPTIONS
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Nitrile (NBR):
– Suitable for oil, fuel, and water
– Good abrasion resistance

EPDM:
– Suitable for water, steam, and mild chemicals
– Excellent weather and heat resistance

PTFE:
– Suitable for aggressive chemicals
– Low friction and high temperature resistance

Viton (FKM):
– Suitable for high temperature and chemical applications
– Excellent resistance to oils and solvents

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CUSTOM MANUFACTURING & DESIGN
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At Krishna Industries, we understand that standard products do not always fit every application. We offer custom manufacturing of swing check valves wafer type as per customer drawings, specifications, and project requirements.

Customization options include:
– Special body materials
– Customized seat materials
– Modified dimensions
– Special testing requirements
– Export packing
– Third party inspection (TPI)

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TESTING & QUALITY ASSURANCE
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All swing check valves supplied by Krishna Industries undergo strict quality checks to ensure reliable performance.

Standard Testing Includes:
– Hydrostatic pressure test
– Seat leakage test
– Functional operation test

Certification:
– Manufacturer Test Certificate (MTC) provided with each supply
– Third party testing certificates available from approved inspection agencies on request

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EXPORT SUPPLY CAPABILITY
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Krishna Industries is actively supplying industrial valves to international markets. Our swing check valves wafer type are packed and documented as per export requirements.

Export support includes:
– Export-grade wooden packing
– Third party inspection
– Test certificates
– Commercial invoice & packing list
– HS code support

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WHY BUY FROM KRISHNA INDUSTRIES – AHMEDABAD?
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– Trusted industrial valve supplier in Ahmedabad, Gujarat
– Strong sourcing and manufacturing network
– Competitive pricing for Indian buyers
– Fast delivery across India
– Export-ready documentation
– Technical support and pre-sales assistance
– Custom manufacturing capability

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FREQUENTLY ASKED QUESTIONS (FAQ)
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1. What is a swing check valve wafer type used for?
It is used to prevent reverse flow in pipelines carrying water, oil, gas, air, or chemicals.

2. What is the difference between wafer type and flanged swing check valve?
Wafer type valves are compact, lighter, and installed between flanges, whereas flanged valves are bulkier and bolted directly.

3. What pressure ratings are available?
PN10, PN16, and Class 150#.

4. Can you supply as per customer design?
Yes, we can manufacture swing check valves as per customer drawings and specifications.

5. What materials are available?
Aluminium Bronze, Cast Iron, Mild Steel, SS 304, and SS 316.

6. Which seat materials can be selected?
Nitrile, EPDM, PTFE, and Viton.

7. Do you provide test certificates?
Yes, Manufacturer Test Certificate is standard. Third party testing is available on request.

8. Are these valves suitable for export projects?
Yes, we supply export-quality valves with proper packing and documentation.

9. Where is Krishna Industries located?
Ahmedabad, Gujarat, India.

10. How can I get a quotation?
You can contact Krishna Industries with size, pressure rating, material, quantity, and application details for a fast quotation.

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CONTACT KRISHNA INDUSTRIES
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If you are looking for a reliable Swing Check Valve Wafer Type supplier in India, Krishna Industries is your trusted partner.

We serve customers across India and export markets with quality industrial valves at competitive prices.

For technical discussion, pricing, or custom requirements, contact Krishna Industries – Ahmedabad, Gujarat, India.
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