YHQ341H inclined ball valve

The overall slope valve is a new technology product developed by the company, with fire safety, anti-static effect, suitable for compressed natural gas, refined oil, water, corrosive liquid engineering projects and aluminum oxide powder transportation engineering projects. The valve adopts wedge type, novel structure and excellent performance. At this stage, most of the valves are side installation test. This kind of structure has a large opening and closing torque for a long time, and it greatly increases the opening and closing torque or leads to leakage due to the adverse influence of temperature difference and internal stress of pipeline construction. This equipment gets rid of the above problems and shows the unique advantages.
The valve uses the new structure of the wedge type, the sealing surface of the two high pressure gate valve is made into a compact shape two slopes, the upper end of the ball has a torsion spring, under the action of the spring force, the sealing surface of the high pressure gate valve and the ball meet closely, resulting in a reliable seal. The valve stem shoulder structure can prevent hair loss and ensure the sealing performance, the valve stem is equipped with a shoulder, which can avoid the valve stem slip when the internal pressure of the valve body rises abnormally, under the action of the torsion spring and material force, the valve stem shoulder clamp the washer, resulting in the actual effect of sealing.
Structural characteristics
1, the distinctive structural seal is more reliable slope valve is also known as the "wedge valve", the selection of the overall type of new structure. The sealing surface of the two high-pressure gate valves is formulated into a compact shape of two slopes, and the upper end of the ball has a torsion spring. Under the action of the spring force, the sealing surface of the high pressure gate valve meets the ball closely to produce a reliable seal.
2, the design of the gate valve is double slope type, the single flow valve plan is tight, and the sealing is completed by the tightening force of the torsion spring and the clamping force of the single flow valve. With automatic adjustment of high pressure gate valve and oil circuit plate, the sealing of the middle of the ball, the application of working conditions have a good sealing; Because the oil plate is integrated, the temperature difference and the internal stress of pipeline construction do not harm the sealing performance of the ball sealing pair. When the sealing pair is damaged, the torsion spring force can be fully compensated.
3, the valve stem shoulder structure can prevent hair loss and ensure the sealing performance of the valve stem is equipped with a shoulder, which can avoid the valve stem slip when the internal pressure of the valve body rises abnormally. Under the action of torsion spring and material force, the valve stem shoulder clamp the washer, resulting in the actual effect of sealing. The opening and closing of the gate valve is small, and the packing sheet plan is selected to tamp the seal between the shoulder plan of the valve stem and the single flow valve, which relieves the opening torque;
4, fire safety, anti-static structure in the middle of the ball and high pressure gate valve installed with fire safety metal rings. After the ablation of the high pressure gate valve in an accidental fire accident, the metal ring is pressed on the ball with sealing effect. Ensure the safety of the system and avoid major safety accidents. The pre-tightening torsion spring on the upper end of the ball can guide the electrostatic induction caused by the friction between the ball and the high pressure gate valve into the ground through the power line. Avoid the fire caused by electrostatic induction to ign-ite inflammable and explosive materials to ensure the safety of the system. Long service life of high quality polytetrafluoroethylene high pressure gate valve inside and outside the metal material protective paste, to avoid substances on the high pressure gate valve washing damage and polytetrafluoroethylene internal cold. And the preload can be adjusted to achieve a smaller specific pressure of the seal, which will further improve the service life. Once the high pressure gate valve is damaged by fire, the metal material protection paste inside and outside has a certain guarantee effect.
5, the gate valve selection of the overall structure, is conducive to the repair and replacement of the gate valve. When it is necessary to protect the gate valve, it is not necessary to remove it from the pipeline, but to disassemble and install the single flow valve and remove all parts in the gate valve body. You can carry out maintenance or disassemble parts, making maintenance more convenient and time-saving.
Product execution Standards
Design scheme and manufacture: GB/T12237-2007 API608 API6D
Structure length: GB/T12221-2007 ASME/ANSI B16.5
Flange connection: GB/T9113-2007 ASME/ANSI B16.10
Test and experiment: GB/T13927-1999 API598
Key connection specification