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
When the disc of the lift check valve slides along the vertical center line of the valve body and the medium flows forward, the disc is lifted by the fluid thrust and the medium passes smoothly; When the medium stops flowing or reverse flowing, the valve disc quickly closes under the action of its own gravity and the reverse thrust of the fluid to prevent the medium from flowing back. This valve is usually equipped with a guide sleeve to ensure that the disc remains smooth during lifting and accurately falls back onto the seat.
The quality of forged steel parts is higher than that of cast steel parts, and they can withstand the impact of beatings. The plasticity, toughness, and other mechanical properties are higher than those of cast steel parts. The diameter of cast steel gate valves is generally not more than DN80, and most of them are reduced-diameter designs. Compared with cast steel gate valves of the same diameter, the flow rate is slightly lower, but the pressure and temperature range they can withstand are higher than those of cast steel valves, and the sealing performance is much better than that of cast steel gate valves, and the service life is longer. The flow direction of the medium is not restricted like other gate valves.
C700 Series Single Seated Control Valve is a top-guided structure control valve, used in equipment that can achieve air opening or air closing. The fluid channel of the valve body is in an S-shaped streamlined shape, featuring low pressure drop loss, large flow rate, wide adjustable range, high accuracy of the flow characteristic curve, large guiding area of the valve core, and good vibration resistance. The control valve is equipped with a multi-spring diaphragm actuator, which features a compact structure and large output force. It can be used to control various fluids with different pressures and temperatures.