Series single-seat control valve adopts the top guided unbalanced structure, featured by high strength, heavy load, S type flow channel, low pressure drop loss, high flow coefficient wide adjustable range, high flow characteristic precision, etc. This kind of control valve is suitable for applications with relatively low differential pressure with tight shut-off. It is suitable for controlling medium flow or pressure. The cage adopts the press-in type seat design, which solves the problems of difficult disassembly and high leakage of the traditiona l thread screw-in type seat and prolongs the service life. The flow to open design is adopted, and the medium flow direction tends to the opening direction of the valve with good controllability of small opening and low flow characteristic distortion. Special cages with noise reduction and anti- cavitation functions can be offered according to the requirements in different service conditions.
Parameters of control valves
DN | 15~450mm |
PN | Class150~2500 |
Applicable temperature range | -196℃- 570℃ |
Trim features | Top guided, unbalanced trim, quick disassembly cage structure |
Body type | straight-through type, angle type. |
Bonnet type | standard type, heat dissipation type, cryogenic type, bellows |
Flow characteristic | equal percentage, linear, quick open |
Shut-off class | ASME B16.104 V (standard metal seat) |
ASME B16.104 V I (shut-off soft seat) | |
Pipe connection type | flange type, butt welding type |
Actuator type | pneumatic diaphragm actuator |
pneumatic piston actuator | |
Electric actuator |
