Ball type check valves are a type of check valve used to control the flow of fluids (liquids or gases) in a piping system. Check valves are designed to allow the flow of fluid in one direction while preventing backflow in the opposite direction. The ball type check valve, as the name suggests, uses a ball to achieve this function.
Here's how a ball type check valve generally works:
Construction: The valve consists of a housing or body that contains a ball. The ball is typically made of a durable material like metal or plastic and is placed inside the valve chamber.
Flow Direction: The valve is designed to allow fluid to flow in one direction, typically indicated by an arrow on the valve body. When the fluid flows in the intended direction, the pressure of the fluid pushes the ball away from the valve seat, creating an opening for the fluid to pass through.
Preventing Backflow: In the event of backflow or reverse flow, where fluid tries to flow in the opposite direction, the ball is forced against the valve seat by the pressure of the back flowing fluid. The ball seals the valve seat, preventing the fluid from passing through the valve in the reverse direction.
Advantages: Ball-type check valves offer advantages such as low-pressure drop, simple design, and relatively low maintenance requirements. They are suitable for applications where backflow prevention is essential.
Applications: Ball-type check valves are commonly used in various industries, including oil and gas, water treatment, chemical processing, HVAC systems, and more. They can be found in pipelines, pumps, compressors, and other equipment where maintaining proper flow direction is critical.
It's important to note that while ball-type check valves are a specific design, there are other types of check valves as well, each with its own advantages and disadvantages. The choice of the appropriate check valve type depends on factors such as the specific application, fluid properties, pressure, and temperature conditions.
Always consult with a professional or an engineer to ensure that the right type of check valve is selected for your specific needs.
|Ball Type Check Valves Specification|
|Size Range :||Threaded ends from 1” to 3” (DN 25 to DN 80).
Flanged ends from (DN 40 to DN 400).
|Connections:||Threaded type “BSP” acc to ISO 228-1 and NFE 03-005.
Flanged type : for mounting between flanges PN 10 (standard) and PN16, ANSI 150#, BS table D&E on request.
|Maximum working pressure:||10 bars.(limits acc to material)|
|Operating temperatures:||10ºC +70ºC|
|Material:||Carbon Steel, Stainless Steel & Other Materials|
|Seating acc to category A standard:||ISO 5208|
|Minimum backpressure for tightness:||0,3 to 0,5 bars|
|Face to face dimensions:||for flanged type according to EN-558-1 serie 48(DIN 3202 F-6).|
|Technical Performances:||Full bore ensured.
Self cleaning ball.
Low pressure drop.
Removable bonnet for cleaning or changing the ball without disassembly out of the pipeline.
Horizontal and vertical installation in the pipeline.
Optional floating balls.
|TEST:||Seat : 1,1 x nominal pressure.
Body : 1,5 x nominal pressure.
|Applications:||Pumping stations for clean, sewage water and loaded or viscous fluids.|
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Oil & Gas Industry
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