In fluid handling equipment valves which is a key component in the control of flow and safety play a large role. To that end we see dual plate check valves (also called wafer check valves) which stand out for their compact size and performance. As a primary dual plate check valve supplier in India Speciality Valve puts forth high quality products which are to the international standards of API, ASME, and DIN thus we see their wide industry appeal.
What is a Dual Plate Check Valve?
A dual plate check valve which is a kind of non return valve (NRV) which allows for the passage of fluid in one direction and does not permit reverse flow. It has two spring loaded discs which are mounted on a central hinge pin within the valve body. As fluid flow goes forward the pressure causes the discs to open and should flow go in the opposite direction the springs cause the discs to close immediately thus preventing backflow.
It has a compact design which makes it lighter and more economical that which traditional swing check valves are, at the same time we see performance of the valve in terms of pressure and temperature is the same if not better.
What is the Purpose of a Dual Plate Check Valve?
The dual plate check valve is used to:
- Prevent reverse flow in pipelines.
- Protect against backflow in pumps, compressors and pipelines.
- Reduce the impact of water hammer with the use of our spring assisted closing system.
- We have designed a compact model which is a better option for tight spaces as compared to large swing check valves.
These present benefits which in turn see great adoption in oil and gas, water treatment, power generation, chemical, and marine industries.
Dual Plate Check Valve vs Swing Check Valve
When it comes to dual plate check valves and swing check valves the difference is that:
- Design & Size: Dual plate check valves have a compact wafer type body, while swing check valves are of a larger heavier design.
- Closing Mechanism: Dual plates which have spring assisted discs report to close faster, which in turn reduces water hammer. Swing check valves which are dependent on gravity function slower to respond.
- Applications: Dual plate valves do better in high pressure and space constrained pipelines, in swing check valves we see more of a use in large diameter, low pressure systems.
- Cost Efficiency: Dual plate valves outperform in the long run which is a result of lower maintenance.
Dual plate check valves we see as very space efficient, that which they do is to close quickly and also they reduce the issue of water hammer which in turn makes them a preferred choice in modern industries.
Types of Dual Plate Check Valves
In many industries we see a range of dual plate check valves which include:
- Wafer type double plate check valve that which is very common in design, compact and light.
- Dual Lug Check Valve for use in systems that require easy break out and install.
- Flanged Dual Plate Check Valve we see in it greater seal reliability for critical applications.
- High Pressure Dual Plate Check Valve used in very tough conditions, we see this in petrochemical plants.
Components of Dual Plate Check Valve
A dual plate check valve which contains:
- Valve Body We use cast steel, stainless steel, and alloy steel for this.
- Dual Plates (Disks) Two half-disks that open and close with flow changes.
- Hinge Axis Central shaft which holds the plates.
- Spring which also sees rapid closure and also prevents backflow.
- Seat Sealing surface for the discs.
- Stop out rotation of the plates.
Each element works to provide the same level of dependability and long life in very tough environments.
Working Principle of Dual Plate Check Valve
The basic principle is which in practice is very effective:
- Forward movement which separates the plates.
- As flow goes down the springs push the plates back to a closed position.
- The design is to reduce slam and protect equipment from surges.
- This is what they do very well in pipeline systems which handle liquids, gases and steam.
Applications of Dual Plate Check Valves
Dual plate valve systems are used in many industries for their flexibility:
- Oil and Gas Industry Issue of backflow in crude oil and natural gas pipelines.
- Power Generation In cooling water systems, feedwater lines, and steam circuits.
- Water Treatment Plants We ensure proper direction of flow in potable water and wastewater systems.
- Chemical and Petrochemical Plants Working in corrosive environments which produce aggressive fluids.
- Marine Industry In ballast water and seawater cooling systems.
One Specific Industry Use – Power Plants
In thermal and nuclear power plants dual check valves serve an important role that of protecting boilers, turbines, and pumps. They are used in feedwater pipes, steam condensate recovery systems, and cooling water circulation lines. Also they have a compact design which allows for quick closure thus which in turn minimizes water hammer a feature which is very important in high pressure power plant systems where we see that even minor reverse flows may cause serious equipment damage.
As we see greater global expansion of industries the demand for dual plate check valves is growing in Asia, Middle East, Europe and North America. In India Speciality Valve is a player which exports to countries that require high reliability, cost effectiveness and international standards compliance. Also what we see from Speciality Valve is a large range of valve materials they offer which includes cast iron, stainless steel, duplex steel, and exotic alloys which in turn we see as a solution for global industrial applications.
Why Choose Speciality Valve as Your Dual Plate Check Valve Supplier in India?
Speciality Valve stands out because of: Specialty Valve excels in:
- Wide variety of Valve Solutions Wafer check valve, swing check valve, non return valve, globe valve, gate valve and more.
- High Quality to the Core We manufacture as to API, ASME, DIN and BS standards.
- Material options include stainless steel, cast iron, alloy steel, duplex steel.
- Tailored Solutions For your specific pipeline and process needs.
- Export our expertise we serve global clients with reliable supply chains.
By choosing Speciality Valve we see that our customers in industry get quality products which are also long lasting and which in turn lower down time and improve efficiency.
A dual plate check valve is a key element in today’s piping systems which we attribute to its compact size, fast response, and performance in the prevention of reverse flow. In the oil gas, power plants, water treatment, and marine industries we see these out standing in terms of durability, performance and reliability.
As a prime player in the dual plate check valve supplier in India Speciality Valve is known for supplying products which not only meet international quality parameters also add a layer of economic benefit for the world over industry.
Specifications of Dual Plate Check Valve
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- Size Range: From 2” to 48” (DN50 – DN1200)
- Pressure Rating: Ranges from Class 150 to Class 2500 (PN10 – PN420)
- Body Material: Options include Cast Iron, Ductile Iron, Stainless Steel, Alloy Steel, and Duplex Steel
- Disc Material: Made from Stainless Steel or Alloy Steel
- Seat Material: Available in Metal-to-Metal or Soft Seated
- Connection Ends: Comes in Wafer, Lug, or Flanged styles
- Standard Compliance: Meets API 594, ASME B16.34, DIN, and BS standards
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Visit Us: https://www.specialityvalve.com/product-category/dual-plate-check-valve/ for refined valve supplies.
ADDRESS – 41, 2nd floor, Balasundaram Road, Coimbatore, Tamil Nadu 641018
