Product Features

Jointly developed products for the localization of key equipment for oil and gas pipelines by China National Petroleum Corporation (CNPC)

The General Administration of Quality Supervision, Inspection and Quarantine of China has issued a TS-A manufacturing license

Axial flow design, smooth channel, low noise, and minimal vibration.

The balanced piston design ensures that the required torque of the valve is independent of the pressure difference before and after the valve, allowing for the selection of relatively smaller actuators.

The precise 45 degree gear design reduces overtravel and hysteresis

The selection and customization of each valve sleeve is based on the different usage conditions of the customer, which can best meet the customer's requirements for control

Pressure bearing components are designed according to the IEC 60534 standard, making them safer to use and more suitable for harsh working conditions

The zero leakage level seal ensures that the valve can remain tightly closed within the full pressure range even under the harshest working conditions (this feature is independent of the type of actuator).

Product parameters

Working principle

Axial flow control valve refers to a straight, symmetrical and unobstructed streamlined flow channel in the valve body cavity. The design of this cavity allows the medium to easily pass through, and the fluid is evenly distributed at various positions inside the valve, thereby reducing local high-speed flow, turbulence, jet flow and other impacts, improving the stability of the valve, and minimizing turbulence and noise.

Valves are mainly composed of valve body, push rod, valve stem, valve core, sleeve, valve seat and other main components. The product adjusts the pressure and flow rate of the medium by changing the relative flow area between the valve core and sleeve, thus achieving the purpose of throttling regulation.

Product Structure Diagram

Multi level sleeve structure diagram

Pressure regulation is achieved through multi-stage pressure reduction, where the fluid passes through a series of small holes in the outer sleeve and expands in the middle of the multi-stage sleeve to control the flow rate. Energy dispersion is controlled, resulting in low noise. Meanwhile, pressure regulation is also achieved through fluid impact at the center of the sleeve.

Sleeve classification diagram

Surface treatment of valve internals

To improve the wear and corrosion resistance of the product, the rack, valve core, sleeve, etc. are all treated with super strong coating (QPQ), and their surface hardness can reach HV ≥ 1100, ensuring stability and service life under harsh working conditions.

Product dimension diagram

Size Connection

Product ordering and selection

Customers provide parameters, and we will provide you with precise selection services