JCJP Pneumatic Single Seat Globe Control Valve DN20 to DN 200

• There are wide materials selection of valve castings body  and internal parts which  can suit special working conditions;
• The trim structure of the control valve can reduce the noise level, improve the anti-cavitation and anti-flashing performance, and eliminate the blocking flow;
• The flow coefficient range is large, and the adjustable ratio range is large;
• The good design of  metal bellows seal can prevent leakage of corrosive and highly toxic medium and pollution
• Easy to disassemble and install the valve  trim, easy to inspect and maintain for control valve ;
• Surface treatment technology is advance, such as  polishing, Stellite alloy, heat treatment, chromium nitride coating, which make the control valve have a  long service life and reliable operation;
• The direct and reverse acting is realized by the cooperation of the pneumatic diaphragm multi-spring actuator, and the spring range (the number of springs is unchanged) can be changed without adding other parts;
• The operation mode can be pneumatic, electric and electro-hydraulic
• A manual operating mechanism, like a handwheel, can be installed on the side or top of the actuator.

• Body type: straight through casting globe type
• Spool type: non-balanced single-seat plug type
• Nominal size: DN20~200 NPS 3/4〞~ 8〞
• Nominal pressure: PN16 ~ 100 CLASS 150LB ~ 600LB
• Connection: flange: FF，RF，MF，RTJ
• Welding: SW ， BW Flange dimension: acc. to IEC 60534
• Bonnet type: standard type（-5℃~230℃）,
• Radiator type: （-45℃~ high than 230℃ occasion), Low temperature extended type（-196℃~ -45℃）, Bellow seal type
• Warm insulation Jacket type
• Packing: V type PFTE packing, flex. graphite packing, etc. Gasket: Metal graphite packing
• Actuator: pneumatic: multi-spring diaphragm actuator, piston-type actuator. electric: 3810L series smart actuator, PSL series actuator.
• Surface painting: Green color, acrylic acid polyurethane ceramic paint.

Note:

1. Above structure, the seat is metal sealing, PTFE soft sealing is VI-grade as an option, also can provide stellite hard seal. As per actual working temperature, we may choose the proper bolt & nut
2. PTFE V type stem packing is with graphite, the working temperature can be higher than 232℃（450F）
3. The common body material is WCB and S.S can apply with other high corrosion resistance alloy

PN16,CL150LB Pneumatic single seat control valve

PN25/40, CL300LB Pneumatic single-seat control valve