How does a floating piston valve work?

The valve structure employs a novel hollow balance piston that seals the valve by using a working fluid or external pressure source that moves to an open or closed position with respect to a close fit in the valve body.

The floating piston valves have several applications. Floating piston valves have a unique structure. The floating spool valve is configured without an actuator and has fewer parts and therefore requires less maintenance and reduces its size and cost. The latest floating piston model is of higher quality because it handles problems in previous designs.www.kp-lok.com

A good floating piston valve normallycomprises of a very solid piston that is constrained against a tight fit, suspended from fluid to control fluid flow and seal the valve. Whether the valve is open or closed, the floating piston is designed to balance the flow. The only force applied to the piston is the force input by the operator. Due to the need to manually use the valve, it is necessary to remove the actuator instead of one or two solenoid valves.

The floating piston is a very simple valve consisting of only five components and its seals are fully protected by design. The simple design of the floating slide valve provides durable options for high pressure, soft or hard sheet metal while increasing valve reliability and sheet life. Excluding actuators can significantly increase valve reliability and service life. The structure is specifically designed to balance the fluid pressure within the valve and extend the life of the floating piston valve.

Applications of Floating Piston Valves

Piston valves have many possible applications and are very versatile.  They are simple design, high reliability and easy maintenance. For piston valve applications

  • Power plants and petrochemical plants
  • Chemical treatment
  • Refinery
  • Pressure storage tank
  • Low temperature fluid system
  • Pharmaceutical production
  • Strong demand requires very high pressure or temperature applications
  • Applications that require a quick actuation
  • High speed application

Benefits of the floating piston valve

  • Reduce maintenance by using a single design with fewer parts and seals
  • Reduced size
  • Cut costs
  • No fleeting emission
  • Sealed and leak-free
  • Tolerate high pressure

How does a floating piston valve work?

The developed valve consists of a solid piston that floats in the medium to control the flow. Whether the valve is in the open or closed position, the piston is designed to balance axially and radially in the current flow. The only force exerted on the piston is the operator’s choice of input piston force.

The advantages of this design are

  • Eliminate conventional actuators that replace one or two simple solenoid valves.
  • Eliminate valve actuator adjustments.
  • Seat stability that is not affected by valve pressure drop.
  • Remove the stem and stem seal.
  • Eliminate most of the flow-induced thrust.

In addition, the valve consists of only five components, and some simple seals are installed in a well-protected structure. With a simple design, it can be used under nominal pressure or super high pressure, and soft or hard metal sheets can be used. This valve design reduces downtime and maintenance costs, improves valve reliability and paper life.