CV3000 Pneumatic Control Valve
CV3000 pneumatic control valve is a high-performance industrial control valve, and its core technology and application characteristics can be summarized as follows:
1、 Structural characteristics
Compact design
By using a multi spring pneumatic diaphragm actuator or a compact electric actuator, the volume and weight are reduced by about 30% compared to traditional control valves. The valve body channel is designed with an S-shaped streamline, reducing pressure drop loss while increasing flow coefficient by 30%.
Noise reduction and stability
Sleeve type structures (such as HCN type) achieve multi-stage pressure reduction through symmetrical small holes, which can reduce the noise generated by high-pressure gas to below 30dB; The design of the guiding wing further optimizes fluid stability.
Sealing and leakage control
The soft seal valve core is made of reinforced polytetrafluoroethylene material, and the leakage rate can reach ANSI B16.104 Level VI standard (close to zero leakage); The leakage rate of the metal valve seat is less than 0.01% of the rated Cv.
2、 Technical parameters
Project parameter range
Nominal diameter DN50mm~DN300mm (NPS2~12)
Pressure rating PN10MPa~16MPa (ANSI CLASS600~900)
Temperature range -29 ℃~350 ℃ (divided into normal temperature/medium temperature/high temperature types)
Adjustable ratio 50:19
Flow characteristics: straight line/equal percentage/quick opening characteristic
3、 Application Fields
Industrial scenarios: systems that require high-precision flow control, such as petrochemicals, power boilers, natural gas transportation, aerospace, etc.
Special media: suitable for steam, high-temperature gases, corrosive liquids, and working conditions that are prone to cavitation.
4、 Key selection points
Differential pressure adaptability
Low pressure difference (≤ 4MPa): HTS single seat valve is recommended
High pressure difference (>4MPa): Preferably choose HLC sleeve valve or HCB cage valve
Material selection
Conventional medium: carbon steel or 304 stainless steel 5
Strong corrosive medium: 316L stainless steel, fluorine lined or titanium alloy valve body
Execution mechanism configuration
The thrust range of the multi spring thin film mechanism is 0.02-0.28MPa, supporting dual action modes of air on/air off.
5、 Special models
Low noise cylinder type regulating valve (ACN type): specially designed for steam/natural gas, with a sleeve containing a guide wing structure, and better dynamic stability than traditional model 7.
High pressure cage type regulating valve (HPC type): with a pressure resistance of up to 42MPa, suitable for supercritical fluid control.
This series of products meets the core requirements of industrial automation systems for high reliability control through modular design of expandable locators, handwheel mechanisms, and other accessories.
