The FC Hydraulic gate valves are available with a manual closing and locking screw and the cylinder head allows the piston to cover the exhaust port before the end of the stroke. This arrangement provides enough damping to protect the valve from shock loading. Both our manual and hydraulic valves meet API 6A specifications and NACE MR0175 requirements to satisfy your sour service needs.
The PFY hydraulic gate valves are widely used in the automatic control systems and remote control systems, featuring the hydraulically controlled opening and closing, stable performance and easy opera
The hydraulic or air drive safety valve, as executive part of safety system on well, can classify both parts of preparation valve and driver.
High pressure oil enters the empty chamber of the driver and then press the bottom spring as to open the valve, if the pressure exceed the bearing ability of wellhead assembly, by the sigh part through the sensor, the control mechanism unload the pressure out of the oil cylinder, and the spring pushes the valve stem to close the valve and wellhead assembly so as to ensure equipment safe.
The expanding gate valve features a non-ring stem with an expanding gate design to provide safe, dependable service in a variety of environments, It’s a available in flanged or threaded ends in standard bore sizes from 2-1/16” thru 4-1/16” in working pressures of 3000psi thru 5000psi. Full-Bore Design: Maximizes valve service life.
- The JL-BSO gate valve was designed for use as a manual valve in high-pressure, large bore applications.
- A ball screw mechanism and lower stem are incorporated into the JL-BSO gate valve to minimize the actuating torque.
- Bi-directional design provides flow direction flexibility and increased service life.
- Sealing at the gate-to-seat and seat-to-body is metal-to-metal.
The H2 chokes are meant for variable flow, it has externally controlled indicator showing orifice size in the increment of 1/16th inch. The variation in choke size is achieved by rotating handwheel to obtain desired flow rate at down stream side. Interchangeability of parts to construct a positive adjustable choke.
The positive choke valve is employed on Christmas trees and wellheads and designed for flow control. In order to control flow rate, the positive choke valve uses flow beans in different orifice diameters that can be changed to adjust the effective area available for the flow.
The Orifice choke valve is molded of two pieces of special carbon tungsten plates with rather ability of erosion resistance, one of which rotates to alter the concentricity between the upper orifice and lower orifice of two plates so as to adjust the flow-rate of fluid or gas.
