Integration piston type valve core and adjustable ratio pressure reducing valve's structure

Integration piston type valve core, be equipped with the spring holder on valve element's the last top surface, seal groove about being equipped with respectively on the circumference on valve element upper portion, be equipped with the sealing washer from top to bottom on the seal groove respectively, be equipped with respectively on the circumference of valve element lower part and take on rank and take on rank under with, on be equipped with sealed the pad on takeing on rank and takeing on down the valve element between the rank, valve element's afterbody is equipped with the external screw thread, location locking cap is twisted on the external screw thread of valve element afterbody, location locking cap sealed fill up to compress tightly take on on rank take on the valve element between the rank under and last, this structure is used on adjustable ratio pressure reducing valve, is equipped with valve cap, regulating spring, regulation clamping ring on valve body upper portion, and piston type valve core is connected with the integration, through the regulation of adjusting the clamping ring, can set for the valve lift of regulation case. The utility model provides high piston type valve core's precision has been simplified the assembly and has been oversimplified, has improved seal life, uses adjustable ratio pressure reducing valve, enhances product performance effectively.