CF8 CF8M Dual Plate Check Valve

Description

CF8 / CF8M DUAL PLATE CHECK VALVE
Minimum Order Quantity (MOQ): 10 Nos
Supplier: Krishna Industries – Ahmedabad, Gujarat, India

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LONG INTRODUCTION
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The CF8 / CF8M Dual Plate Check Valve is a critical flow-control component used across a wide range of Indian industrial applications where backflow prevention, pressure stability, and long service life are essential. Designed for compact installation and reliable automatic operation, this valve is widely adopted in water supply systems, chemical processing plants, HVAC pipelines, refineries, pharmaceutical utilities, power plants, and general industrial piping networks throughout India.

Krishna Industries, based in Ahmedabad, Gujarat, India, supplies high-quality CF8 and CF8M dual plate check valves manufactured to meet Indian industry expectations for durability, safety, and cost efficiency. Our valves are engineered for Indian operating conditions, Indian pipeline standards, and Indian buyer requirements, making them suitable for contractors, EPC companies, factories, maintenance teams, and traders across the country.

This dual plate check valve is also commonly referred to as a wafer type dual plate check valve, stainless steel non-return valve, spring-loaded check valve, or compact wafer check valve. The use of CF8 and CF8M stainless steel ensures excellent corrosion resistance, strength, and hygienic performance, especially in aggressive media and high-temperature environments commonly found in Indian industrial operations.

Unlike conventional swing check valves, the dual plate design offers faster closing action, reduced water hammer, lower pressure drop, and compact face-to-face dimensions. This makes CF8 / CF8M dual plate check valves ideal for space-constrained piping systems and modern plant layouts where efficiency and reliability are priorities.

Krishna Industries positions itself not only as a supplier but as a technical partner for Indian buyers, offering application guidance, specification clarity, and consistent supply support from Ahmedabad, Gujarat.

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PRODUCT OVERVIEW
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A CF8 / CF8M Dual Plate Check Valve is an automatic valve that allows fluid to flow in one direction and prevents reverse flow without any external actuation. The valve operates using two spring-loaded plates mounted on a central hinge pin. When forward flow occurs, the plates open; when flow stops or reverses, the springs force the plates to close instantly.

CF8 stainless steel is equivalent to ASTM A351 CF8 and broadly comparable to SS 304, while CF8M corresponds to ASTM A351 CF8M, comparable to SS 316. These materials are widely accepted in Indian industries for their mechanical strength, corrosion resistance, and long operational life.

Krishna Industries supplies CF8 / CF8M dual plate check valves in wafer type construction, allowing easy installation between flanges without additional space or heavy supports. The design reduces installation cost, simplifies maintenance, and improves system efficiency.

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KEY FEATURES
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• Dual plate spring-loaded mechanism for fast response
• Compact wafer type design for easy installation
• CF8 and CF8M stainless steel body and internals
• Low pressure drop due to streamlined flow path
• Reduced water hammer compared to swing check valves
• Suitable for horizontal and vertical installation
• Long service life with minimal maintenance
• Designed for Indian industrial operating conditions

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MATERIAL SPECIFICATION
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Body:
CF8 (SS 304 equivalent) or CF8M (SS 316 equivalent)

Plates:
CF8 / CF8M Stainless Steel

Springs:
Stainless Steel (as per application requirement)

Hinge Pin:
Stainless Steel

Seat:
Integral metal seat (optional soft seat on request)

These materials ensure reliability in water, air, steam, oil, chemicals, and various industrial fluids commonly handled in Indian plants.

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DESIGN & CONSTRUCTION
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The CF8 / CF8M Dual Plate Check Valve supplied by Krishna Industries features a wafer-type body with precision-machined internals. The dual plate configuration ensures balanced closing forces, minimizing vibration and wear. Each plate is supported by a central hinge and assisted by stainless steel springs, allowing quick closure even at low flow velocities.

The valve is designed to fit between standard Indian flanges without modification. Its compact design reduces weight and installation time, which is especially beneficial for large-diameter pipelines and elevated piping systems.

Special attention is given to surface finish, alignment, and dimensional accuracy to ensure leak-tight performance and smooth operation over extended service periods.

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WORKING PRINCIPLE
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When fluid flows in the forward direction, the pressure pushes the two plates open against the spring force. As long as flow continues, the plates remain open, allowing smooth passage of the medium.

When the flow stops or reverses, the springs immediately push the plates back onto the seat, preventing reverse flow. This fast-closing action significantly reduces the risk of water hammer, pipeline shock, and system damage.

This automatic operation makes the CF8 / CF8M dual plate check valve highly dependable for Indian industrial systems where flow conditions may fluctuate frequently.

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APPLICATIONS IN INDIA
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CF8 / CF8M Dual Plate Check Valves supplied by Krishna Industries are widely used in:

• Water treatment plants
• Municipal water supply systems
• Industrial process pipelines
• Chemical and pharmaceutical plants
• Oil and gas utilities
• Power generation facilities
• HVAC and chilled water systems
• Food and beverage processing units
• Fire protection pipelines
• Pump discharge lines

Their versatility and durability make them suitable for both new installations and replacement projects across India.

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ADVANTAGES FOR INDIAN BUYERS
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• Competitive pricing from Ahmedabad-based supplier
• Materials suitable for Indian water and chemical conditions
• Compact design reduces space and support requirements
• Faster delivery within India
• Easy availability of spares and replacements
• Lower lifecycle cost compared to imported valves
• Technical support from Indian engineering team

Krishna Industries understands Indian buyer expectations regarding price, performance, and service, and aligns its supply accordingly.

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SIZE RANGE & PRESSURE CLASS
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CF8 / CF8M Dual Plate Check Valves are commonly supplied in sizes ranging from small bore to large bore pipelines as per Indian project requirements.

Pressure ratings are available as per common Indian and international standards used in domestic plants. Selection is based on system pressure, temperature, and media.

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INSTALLATION GUIDELINES
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• Ensure correct flow direction as marked on valve body
• Install between matching flanges with proper gasket
• Tighten bolts evenly to avoid distortion
• Suitable for horizontal and vertical pipelines
• No special tools required for installation

Proper installation ensures long service life and optimal performance.

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QUALITY & INSPECTION
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Krishna Industries emphasizes quality consistency for every CF8 / CF8M dual plate check valve supplied. Valves undergo dimensional checks, material verification, and functional testing before dispatch to ensure reliability for Indian industrial use.

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WHY CHOOSE KRISHNA INDUSTRIES
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Krishna Industries is a trusted supplier of industrial valves based in Ahmedabad, Gujarat, India. With strong understanding of Indian industrial markets, we supply valves that balance quality, performance, and cost.

Our strengths include:
• Focus on Indian buyer needs
• Reliable sourcing and supply chain
• Technical product knowledge
• Consistent quality standards
• Long-term business approach

We work closely with contractors, traders, OEMs, and end-users across India.

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MINIMUM ORDER QUANTITY
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Minimum Order Quantity (MOQ): 10 Nos
This MOQ structure supports bulk buyers, traders, and project-based procurement within India.

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FREQUENTLY ASKED QUESTIONS (FAQ)
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1. What is CF8 material in dual plate check valves?
CF8 is a stainless steel grade equivalent to SS 304, commonly used in Indian industries for corrosion resistance and strength.

2. What is CF8M material?
CF8M is equivalent to SS 316 and offers higher corrosion resistance, especially in chemical and saline environments.

3. What is the main advantage of a dual plate check valve?
It offers faster closing, reduced water hammer, compact size, and lower pressure drop compared to swing check valves.

4. Can this valve be installed vertically?
Yes, CF8 / CF8M dual plate check valves can be installed in both horizontal and vertical pipelines.

5. Is this valve suitable for water applications in India?
Yes, it is widely used in Indian water supply, treatment, and industrial water systems.

6. Does the valve require manual operation?
No, it is fully automatic and operates based on flow direction and pressure.

7. What industries commonly use this valve in India?
Water treatment, chemical, pharmaceutical, HVAC, power, oil and gas, and general industries.

8. Where is Krishna Industries located?
Krishna Industries is based in Ahmedabad, Gujarat, India.

9. What is the minimum order quantity?
The minimum order quantity is 10 numbers.

10. Is after-sales support available within India?
Yes, Krishna Industries provides support and coordination for Indian buyers.

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CONCLUSION
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The CF8 / CF8M Dual Plate Check Valve is an essential component for modern Indian piping systems requiring dependable backflow prevention, compact installation, and long-term performance. With stainless steel construction, efficient design, and suitability for a wide range of applications, it delivers excellent value for Indian industries.

By sourcing from Krishna Industries in Ahmedabad, Gujarat, Indian buyers gain access to reliable products, technical understanding, and a supplier committed to long-term business relationships within India.