The Axial Flow Control Valve is a high-performance control valve featuring an advanced structural design. Its straight-through streamlined flow path allows the throttling element to align with the direction of media flow, reducing energy loss and increasing flow capacity by approximately 20%–50%. With a low flow resistance coefficient, robust structure, low maintenance requirements, and high performance, the valve is widely used for the regulation and control of natural gas, crude oil, refined oil, and other non-corrosive gases and liquids.
• Self-balanced pressure design on the upper and lower sides of the valve plug enables tight shutoff with low actuator thrust, making it suitable for large-size and high-pressure applications.
• The valve body adopts a straight-through streamlined internal flow path, reducing flow resistance and achieving a higher Cv value.
• Sensitive operation, high-precision positioning, fast response, robust structure, long service life, compact design, and small installation footprint.
Nominal Size: NPS 2″–48″ / DN50–DN1200
Pressure Rating: ANSI Class 150–2500 / PN1.6–PN42.0 MPa
Operating Temperature: -46°C to 280°C
Connection Type: Flanged
Body Materials: WCB, CF8, CF8M, or other materials upon request
Trim Materials: 304, 316, 1Cr17Ni2, or other materials upon request
Seat Ring Materials: NBR, FKM, high-performance sealing rings
Flow Characteristics: Linear, equal percentage, or customized
Leakage Class: In accordance with FCI 70-2 and IEC 60534-4, Class IV, V, or VI
Rangeability: 100:1
Actuation: Electric, pneumatic, or hydraulic
There is an oil groove between the valve body and the sealing surface of the pressure-balanced plug valve, and sealing grease can be injected into the valve seat through the oil nozzle at any time to improve the sealing performance. The material of the parts and the size of the flange can be reasonably selected according to the actual working conditions or user requirements to meet various engineering needs.
Expanding Slab Gate Valve is a type of slide valve that utilizes parallel gate plates as its closing mechanism. These plates are equipped with a spreading mechanism to enhance functionality. The force pressing the plates against the valve seat is regulated by the medium pressure acting on either a floating gate plate or a floating valve seat. In dual gate flat gate valves, the inter-plate spreading mechanism provides additional pressing force. This valve is designed with innovative features including low operating torque, rapid actuation, minimal vibration, extended operational life, and enhanced safety. It is mainly used for the isolation or venting of gases and liquids in pipeline systems.
The Non-Rising Stem Gate Valve is also called the rotating stem gate valve. Stem and nut are arranged on the gate plate, handwheel rotation drive valve stem rotate to lift the gate, usually there is a trapezoidal thread at the bottom of the valve stem and the rotation movement is turned into a linear motion through the limit slot between the valve stem and the gate body and the gate body and the gate, that is, the operation torque is turned into operation thrust. When the valve is turned on, when the height of the gate is equal to the diameter of the valve 1: 1: 1, the channel of the fluid is completely unblocked, but at the run, this position cannot be monitored. In actual use, the vertex of the valve stem is used as a sign, that is, the position that is unmoved as its full opening position. The non-rising stem gate valve has the design characteristics of the ordinary wedge-type gate valve. The valve body has a guide mechanism, which can prevent the gate from rotating when the gate is turned on or closed, ensuring that the seal of the gate on the valve seat is accurate accordingly. At the same time, the wedge valve does not rub with the valve seat before turning off, thereby reducing the wear of the cover and effectively extending the service life of the valve.