Structural features and uses
This series of pressure reducing valves are pilot piston type pressure reducing valves. They consist of two parts: the main valve and the pilot valve. The main valve is mainly composed of valve seat, main valve disc, piston, cylinder sleeve, spring and other parts.
The pilot valve is mainly composed of valve seat, valve disc, diaphragm, spring, regulating spring and other parts. The outlet pressure is set by adjusting the pressure of the regulating spring, the outlet pressure is sensed by the diaphragm, and the size of the flow area of ​​the main valve throttling part is adjusted by the pilot valve opening and closing to drive the piston to achieve the pressure reduction and stabilization function.
This product is mainly used for gas pipelines, such as air, nitrogen, oxygen, hydrogen, liquefied gas, natural gas and other gases.

Product Overview

The ZJHP type pneumatic diaphragm single-seat regulating valve adopts a top guide structure, a compact valve body structure, an S-shaped fluid channel, a small pressure drop loss, a large flow rate, a wide adjustable range, and a high flow characteristic accuracy.
The guide area of ​​the valve core guide part is large, and it has the characteristics of strong vibration resistance. The valve seat closing performance meets the GBT4213-92 standard. The regulating valve is equipped with a multi-spring diaphragm actuator, which has a small structure and a large output force. It is more suitable for use in high temperature, low temperature and small pressure difference before and after the valve that require high reliability and closing performance. The unique cage design can also be used in harsh working conditions such as scouring and cavitation. The valve seat can be used on both sides to increase the service life and can be quickly installed and disassembled without special tools. High cost performance.