VC8200 self-operated micro (differential) pressure regulating valve
Category ：VC8000 Series
Key words: VC8200 self-operated micro (differential) pressure regulating valve
VC8200 self-operated micro (differential) pressure regulating valve
Product name: VC8200 self-operated micro (differential) pressure regulating valve
Specifications: DN20-DN300
Product Remarks:
Product category: VC8000 self-regulating valve series
Features
◆ An actuator product that does not require any additional energy and uses the energy of the medium to be adjusted automatically;
◆ The pressure set point can be adjusted on site within the pressure adjustment range;
◆ The modular design of the valve body part and the actuator can change the actuator or spring according to the requirements of the site, so as to realize the rapid change of the pressure adjustment range within a certain range;
◆ The non-balanced structure of this series of valves generally uses rubber diaphragm as the pressure balance element. The pressure change before and after the valve does not affect the force of the valve core, which greatly speeds up the response speed of the valve and improves the adjustment accuracy of the valve. When the small flow without pressure balance element.
The balanced structure of this series of valves generally adopts self-balancing double sealing surface sleeve or double sealing valve core as throttling parts, which is suitable for occasions with large pressure drop;
The stem seal with no packing design, greatly reducing the friction, high reliability on the seal;
◆ The actuator uses rubber diaphragm as a detection element, with low resistance, rapid response, high adjustment accuracy, and extremely small pressure changes can be sensed by the diaphragm.
◆ As an accessory, the valve is closed before work to prevent impurities from entering the actuator to protect the diaphragm and seals in the actuator, while avoiding damage to the overall performance due to exceeding the set pressure.
parameters and performance
◆ Valve type: self-operated
◆ Model: VC8200
◆ Nominal diameter: DN20-DN300mm
◆ Nominal pressure: PN0.1,PN1.0,PN1.6
◆ Body material: ZG230-450, ZG1Cr18Ni9Ti, ZGCr18Ni12Mo2Ti
◆ Flow coefficient CV:7-1925
◆ Flow characteristics: quick opening
◆ Adjustment accuracy: ± 5~10
Allowable leakage rate of valve seat: hard seal: ANSI Class II, ANSI Class IV;
软密封：ANSI Class IV、ANSI Class V、ANSI Class VI
◆ Connection mode: flange type
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