Hydraulic gate valves are designed, manufactured, and tested in accordance with API Spec. 6A to ensure reliable and efficient operation in a variety of applications. The valves feature linear double-acting actuators that guarantee rapid opening in just 30 seconds, providing positive control during operations.
Features
1. The integral forging of the valve body, along with the use of carbide alloy on the sealing surface and seats, enhances wear resistance, and corrosion resistance, and extends the service life of the valve.
2. The metal-to-metal sealing between the gate and seat, seat and body, bonnet seal, and stem backseat provides a secure, long-lasting seal.
3. The balancing lower stem of the valve allows it to stay in position even in the absence of hydraulic power, and the double-acting actuator requires hydraulic power to both open and close. Should a failure of hydraulic power occur, this valve will remain in position.
4. Balancing stem that allows the gate to stay in position unless hydraulic power is supplied to the actuator to positively open or close valve
5. Two spring-loaded, pressure-energized, nonelastomeric lip seals provide low-pressure sealing and protect against particle intrusion, while the stem seal design is capable of handling a wide range of pressures, temperatures, and fluids.
6. Stem seal design that covers a wide range of pressures, temperatures, and fluids encountered in wellhead and manifolds service metal-to-metal bonnet seal.
7. A manual locking screw maintains the gate in the closed position without any operating pressure, and socket head cap screws are used to tie down the actuator head flanges, reducing exposure to corrosive environments.
Technical Parameters
1. Medium: oil and gas accompanied by sour gas or/and sand
2. Hydraulic actuator: 3,000 psi working pressure and 1/2 NPT connection
The check valve is a kind of one-way valve, which relies on the pressure of the medium to realize the metal seal between the spool and the valve body, the greater the medium pressure, the better the sealing performance. The check valve design and manufacture of APImeivalve fully meet the requirements of API spec 6A and can be used interchangeably with domestic and foreign equipment conforming to API spec 6A.
The valve body is made of alloy steel forging, with strong mechanical properties, and can withstand high pressure, with safe and reliable performance. The bonnet and valve body are bolted together, and the seal is the sealing ring on the bonnet and the inner wall of the valve body. The sealing performance is reliable. It provides minimal assembly clearance between the bonnet and body (designed to be 0), thereby reducing erosion of bolts and holes by corrosive media and reducing bolt loads.
Hard alloy is hard-faced on the core and sealing surface of the valve body so that it has good wear resistance and corrosion resistance. The core material should use sulfur-proof steel, and other parts should use the method of limiting hardness so that the valve can be used in an environment containing H2S.
Install the valve body into the pipeline according to the flow direction on the valve body. The valve core by the upper and lower pressure to achieve movement and sealing so that the valve core can not be stuck.
Technical Parameters
1. One-way flow of the working medium.
2. Working pressure: 2,000 psi 20,000 psi
3. Nominal diameter: 2.1/16 4.1/16 (52mm 103mm)
4. Working medium: oil, natural gas, mud, H2S and CO2 gas
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