Dual Disc Check Valve Manufacturer in India

The chief function of this type of valve is to avert backflow so as to prevent water in a pipe-line from getting contaminated. It is named so because it has two check valves arranged in a series in the device. It generally operates in two different ways. Either one of check valve operates while the other is packed wide open or one of the valves gets closed minimizing the differential pressure of the other thus seals up tight to prevent leaking.

Our wide range of Dual Disk check valves include fully Rubber lined Disk Valve, Unlined Body Disk Valve, and Dual Plate Non-Return Valves etc. They can be installed horizontally as well as vertically.

These valves are sturdily manufactured using quality raw-materials. They are precisely engineered for excellent performance and durability. They offer maximum safety and are very cost-effective.

Salient features :

Durability
Cost-effective
Strong and robust
Precisely dimensioned
High performance
Zero probability of leakage

Applications :

Air brake systems of heavy trucks
Waste water treatment plant
Desalination plant
Abrasive slurry
Fire fighting systems

Dual Disc Check Valve - Technical Specification
Size Range	50 NB through 600 NB
Pressure Rating	ANSI - 150#, 300#, 600#
Type	Dual Disc Fully Rubber lined / Unlined Body
End Connection	Sandwich / Flanged
Operation	Automatic with return pressure
Port Opening	Full
Seat	Soft - Rubber / PTFE / Metal to Metal
Disc	Dual Disc Spring Loaded
Gasket & Packing	Graphite / PTFE
MOC	Refer Material Chart
Design Code	API - 594
Testing	API - 598
Inspection	3rd Party / Client / Manufacturer

Frequently Asked Questions

1. What is a Dual Disc Check Valve? +

A Dual Disc Check Valve is a non-return valve designed to prevent reverse flow in pipelines. It uses two spring-loaded discs that open with forward flow and close automatically when the flow stops or reverses.

2. Where are Dual Disc Check Valves commonly used? +

Dual Disc Check Valves are commonly used in water treatment, oil and gas, chemical processing, power generation, petrochemical, fire protection, and industrial piping systems where reliable backflow prevention is required.

3. What are the main advantages of Dual Disc Check Valves? +

These valves offer compact construction, low pressure drop, quick closing action, reliable backflow prevention, and reduced water hammer compared with some conventional check valve designs. Their lightweight structure also makes installation and maintenance convenient.

4. Can Dual Disc Check Valves be used for high-pressure applications? +

Yes, Dual Disc Check Valves are available for various pressure and temperature conditions. The appropriate valve size, pressure class, body material, disc material, and seat design should be selected according to the specific operating requirements.

5. How does a Dual Disc Check Valve operate? +

The two discs open when fluid flows in the correct direction, allowing the media to pass through the valve. When forward flow decreases or reverses, the springs assist the discs in returning to the closed position to prevent backflow.

6. What maintenance is required for a Dual Disc Check Valve? +

Regular maintenance includes inspecting the discs, springs, seats, and sealing components for wear or damage. The valve should also be checked for deposits, leakage, and smooth disc movement to ensure reliable operation and longer service life.