Choke Valves are mainly used to adjust flow and pressure in the pipeline by changing the choke area, with union connections on the ends. Jereh Choke Valves can be divided into manual and hydraulic.

Check Valves are widely used in high pressure lines to control one-way flow and prevent fluid from flowing back to the pump, thus to protect pipeline safety. Jereh Check Valves include top-entry check valves, in-line flapper check valves and dart check valves. Flappers of top-entry and in-line flapper check valves which are mainly used in fluid condition adopt complete coating design, increasing service life. Dart check valves are mainly used in air condition.

Plug Valve is an important high pressure part for well service to allow and stop flow by plug rotation. Jereh plug valves are made from premium alloy steel, with special coating and heat treating process which greatly improves sealing capabilities, anti-abrasive and corrosive resistance. 5 basic types (manual, hydraulic, electric, handwheel and manual & hydraulic actuators) are available to meet various needs applicable to different services.

Safety Valves act as a fail-safe for reciprocating plunger pump, pressure vessel and testing lines, etc. The open/close pressure is controlled by spring washer. When the pressure exceeds preset limit, the valve may automatically unload. When the pressure drops below preset limit, the valve may automatically close to protect people and equipment. Jereh Safety Valves feature high strength, wide pressure range and stable performance. Jereh Safety Valves are forged from premium alloy steel, handled by advanced metal melting and heat treatment technology. Different number combination of spring washers allows wider pressure adjustment range. Pressure relief device realizes stable seal. To meet various demand, Jereh has developed many types suitable for cementing, acidizing, fracturing and testing lines. Customized service is also available.