Product overview

Felsen single seat high precision control valve is suitable for heavy load, ordinary or harsh working conditions, close tight, accurate control of fluid or gas of various pressures and temperatures. Suitable for a variety of actuators, play a regulating role. The valve cage is designed to compress the seat, reduce lateral load and spool vibration, reduce friction, and extend the service life of the control valve. Open flow design, medium flow direction tends to the control valve open direction, small flow state controllability is good. According to the working conditions can choose the noise reduction, anti cavitation special cage.

Product features

1. The valve body is compact in structure, and the diversion wing is provided to improve the smooth flow of fluid around the sleeve. The advantage is that the pressure drop loss is small, the flux is large, the adjustable range is wide, and the flow characteristics are of high precision.

2. The use of pressure balance valve core structure, by smaller thrust actuator can control high pressure difference condition, are widely used in the requirement of dynamic stability is good, low temperature, low pressure pipeline fluid control in the sealed performance is good, allow the pressure difference is big, hard seal leakage of grade IV level, can be customized to V seal, soft seal grade V standard leak level.

3. According to different working conditions, the surface of valve inner parts can be treated with special treatment, such as polishing, ammonification, hard chromium plating, surfacing of Stari alloy, etc.

4. Large flow coefficient and adjustable ratio range.

5. The standard adjustable ratio is 50:1, and 100:1 can be customized

6. Simple guide, large guide area, good stability, compact structure, can quickly replace the internal parts online, high maintenance efficiency, saving manpower and time.

7. Body and upper bonnet are integrated by double stud, designed in accordance with ASME VI.

8. High performance PTFE packing or flexible graphite packing, coupled with dynamic compensation butterfly spring or self-sealing design, greatly reduce the possibility of leakage of valve packing box, in line with API-622 low leakage specification.

9. The use of multi-spring pneumatic actuator, do not need to increase other parts can adjust the spring range, positive action actuator can achieve gas closed operation, reaction actuator can achieve gas open operation.

I. Product Overview

Pneumatic film single seat regulating valve by pneumatic film multi spring actuator and fine small low flow resistance single seat valve, pneumatic film single seat regulating valve adopts top guide structure, with multi spring film actuator. It has the advantages of compact structure, light weight, sensitive operation, streamline fluid channel, less pressure drop loss, large valve capacity, accurate flow characteristics, convenient disassembly and assembly. Widely used in precise control of gas, liquid, steam and other media, process parameters such as pressure, flow, temperature, liquid level to maintain a given value. Especially suitable for small leakage valve before and after the small pressure difference.

Two, product performance characteristics

1, multi spring actuator low height, light weight, simple equipment.

2, fine small valve body compact structure, unobstructed flow channel, with a large flow coefficient.

3. Simple structure, convenient assembly, disassembly and maintenance.