WCB Dual Plate Check Valve

Description

WCB Dual Plate Check Valve
Supplier and Manufacturer – Krishna Industries, Ahmedabad, Gujarat, India

Minimum Order Quantity: 10

Introduction

The WCB Dual Plate Check Valve is a critical industrial flow control component designed to prevent reverse flow in pipelines handling liquids, gases, steam, and other process media. Manufactured using high-quality WCB carbon steel casting, this valve offers excellent mechanical strength, pressure resistance, and long service life under demanding operating conditions. Krishna Industries, based in Ahmedabad, Gujarat, India, supplies WCB Dual Plate Check Valves to Indian industries that require dependable performance, consistent quality, and competitive pricing.

This product is widely used alongside other industrial flow control solutions such as wafer check valves, swing check valves, gate valves, globe valves, butterfly valves, and industrial strainers. In Indian process plants, infrastructure projects, and manufacturing units, dual plate check valves are preferred because of their compact wafer-type design, low pressure drop, quick response to flow reversal, and suitability for horizontal and vertical installations.

Krishna Industries positions itself as a reliable Indian supplier of WCB Dual Plate Check Valves for domestic projects across power plants, oil and gas installations, water treatment facilities, chemical plants, refineries, HVAC systems, fire fighting networks, and general industrial pipelines. Our focus is on supplying valves that meet Indian operating conditions, Indian standards, and Indian buyer expectations, with strong after-sales support and transparent documentation.

What is a WCB Dual Plate Check Valve

A WCB Dual Plate Check Valve is a non-return valve that uses two spring-loaded plates mounted on a central hinge pin. These plates open automatically when forward flow pressure is applied and close instantly when flow stops or reverses. The body is manufactured from WCB grade carbon steel, which is widely used in Indian industries for pressure-containing components.

The dual plate mechanism ensures faster closing compared to traditional swing check valves, significantly reducing water hammer effects and pressure surges. The wafer-type construction allows the valve to be installed directly between two pipeline flanges without the need for additional support structures, making it space-saving and cost-effective.

Material Specification – WCB

WCB is a carbon steel casting material commonly used in valve bodies for medium to high pressure applications. It provides an excellent balance of strength, toughness, machinability, and cost-effectiveness. In Indian industrial environments where temperature fluctuations, pressure variations, and continuous operation are common, WCB material ensures structural integrity and durability.

Typical properties of WCB material include high tensile strength, good impact resistance, and suitability for welding and machining. This makes WCB Dual Plate Check Valves ideal for Indian power plants, process industries, and infrastructure pipelines.

Design and Construction

The WCB Dual Plate Check Valve supplied by Krishna Industries features a compact and robust design suitable for PN rated pipelines commonly used in India. The valve consists of a WCB cast body, dual stainless steel plates, a central hinge pin, springs for assisted closing, and soft or metal seating options depending on application requirements.

The wafer-type body ensures easy installation between flanges without increasing face-to-face dimensions. The internal flow path is streamlined to minimize turbulence and pressure loss, making it suitable for energy-efficient pipeline systems.

Key Features and Benefits

Compact wafer design reduces installation space and cost
Dual plate mechanism ensures quick response and low water hammer
WCB carbon steel body provides high strength and pressure resistance
Low pressure drop compared to conventional check valves
Suitable for horizontal and vertical pipeline installation
Minimal maintenance due to simple internal construction
Long service life in Indian industrial operating conditions
Compatible with standard Indian flange dimensions

Working Principle

When fluid flows in the forward direction, the pressure pushes the dual plates open against the spring force, allowing smooth passage of media. When the flow slows down or reverses, the springs and back pressure force the plates to close instantly against the seat. This immediate closure prevents reverse flow, protects pumps and compressors, and avoids pipeline damage.

The dual plate design distributes closing force evenly, reducing wear and ensuring reliable sealing over extended periods of operation.

Applications in Indian Industries

WCB Dual Plate Check Valves are extensively used across a wide range of Indian industries due to their reliability and compact design. Typical applications include thermal power plants, gas-based power stations, oil refineries, petrochemical units, chemical processing plants, fertilizer plants, sugar mills, cement plants, steel plants, paper mills, water supply schemes, sewage treatment plants, fire fighting systems, HVAC installations, and industrial utilities.

In municipal and infrastructure projects, these valves are used in pumping stations, water distribution networks, and pipeline systems where prevention of backflow is critical.

Sizes and Pressure Ratings

Krishna Industries supplies WCB Dual Plate Check Valves in a wide range of sizes suitable for Indian pipeline systems. Commonly supplied sizes range from small bore to large diameter as required by the project. Pressure ratings are available as per standard PN classifications commonly used in India.

Custom sizing and pressure rating support can be provided based on project requirements, drawings, or technical specifications shared by the buyer.

Installation Advantages

The wafer-type construction of the WCB Dual Plate Check Valve allows easy installation between two flanges without the need for additional bolts or support brackets. This reduces installation time and labour cost, which is a significant advantage for Indian contractors and project execution teams.

The lightweight and compact design also simplifies handling at site, especially in retrofit or replacement applications where space is limited.

Quality Control and Inspection

Krishna Industries follows strict internal quality control procedures to ensure consistent performance and reliability. Each WCB Dual Plate Check Valve undergoes dimensional checks, visual inspection, and pressure testing as required. Material traceability and inspection records can be provided as per buyer requirement.

Our focus is to supply valves that are safe, durable, and suitable for long-term operation in Indian industrial environments.

Packaging and Supply

Valves are properly packed to avoid damage during handling and transportation within India. Packaging is suitable for road transport and storage at project sites or warehouses. Clear labeling ensures easy identification during receipt and installation.

We supply valves directly from Ahmedabad, Gujarat, to customers across India, including Maharashtra, Tamil Nadu, Karnataka, Telangana, Andhra Pradesh, Delhi NCR, Rajasthan, Madhya Pradesh, and other industrial regions.

Why Choose Krishna Industries

Krishna Industries is a trusted supplier of industrial valves based in Ahmedabad, Gujarat, India. We understand the requirements of Indian buyers, EPC contractors, maintenance teams, and industrial end users. Our focus is on practical solutions, competitive pricing, reliable delivery, and clear communication.

With strong sourcing capabilities, technical understanding, and industry experience, we support Indian customers in selecting the right valve for their application without unnecessary complexity.

Minimum Order Quantity

The minimum order quantity for WCB Dual Plate Check Valve is 10 numbers. This MOQ is suitable for project requirements, maintenance stocking, and bulk procurement by Indian buyers.

Frequently Asked Questions

1. What is the use of a WCB Dual Plate Check Valve
A WCB Dual Plate Check Valve is used to prevent reverse flow in pipelines carrying liquids, gases, or steam. It protects pumps, compressors, and pipeline systems from damage caused by backflow.

2. Why is WCB material preferred for check valves in India
WCB carbon steel offers high strength, durability, and pressure resistance at a reasonable cost, making it suitable for Indian industrial applications and operating conditions.

3. Can this valve be installed vertically
Yes, WCB Dual Plate Check Valves can be installed in both horizontal and vertical pipelines, provided flow direction is correctly followed.

4. What industries commonly use this valve in India
These valves are widely used in power plants, refineries, chemical plants, water treatment facilities, HVAC systems, fire fighting networks, and general industrial pipelines.

5. What is the advantage over swing check valves
Dual plate check valves offer faster closing, reduced water hammer, compact size, and lower pressure drop compared to traditional swing check valves.

6. Does Krishna Industries supply valves only from Ahmedabad
Krishna Industries is based in Ahmedabad, Gujarat, but supplies WCB Dual Plate Check Valves to customers across India.

7. Is this valve suitable for high pressure applications
Yes, WCB Dual Plate Check Valves are suitable for medium to high pressure applications when selected with the correct pressure rating.

8. What is the minimum order quantity
The minimum order quantity for this product is 10 numbers.

9. Can inspection or test certificates be provided
Yes, inspection and pressure test documentation can be provided based on buyer requirement.

10. How do Indian buyers place an order
Indian buyers can share their size, pressure rating, quantity, and application details with Krishna Industries to receive a quotation and delivery schedule.

Conclusion

The WCB Dual Plate Check Valve supplied by Krishna Industries is a reliable, efficient, and cost-effective solution for preventing reverse flow in Indian industrial pipeline systems. With robust WCB construction, compact wafer design, and dependable performance, this valve meets the practical needs of Indian industries across sectors. Backed by our Ahmedabad-based supply capability and customer-focused approach, Krishna Industries stands as a dependable partner for industrial valve requirements in India.