HIGH-LOW PRESSURE PILOT VALVE

摘要

A high-low pressure pilot valve has a valve body provided with an inlet (6) and an outlet (7), a valve chamber is formed in the valve body, a valve core (1) is mounted in the valve chamber, two ends of the valve core (1) extend out of the valve chamber, wherein one end is a pressure detecting end and the other end is provided with an elastic return element; the valve chamber comprises a first chamber body and a second chamber body adjacent to the first chamber body, which communicate with the inlet (6) and the outlet (7), respectively, and a sealing surface is formed on a common boundary of the two chamber bodies; one section on the valve core (1) is a conical valve (3), a conical surface of the conical valve (3) is matched with the sealing surface to achieve sealing. The high-low pressure pilot valve has higher sensitivity, better responsibility and better reliability.