Product description
VFR cam flexure control valve belongs to the angular travel valve, which is composed of rotary electric actuator and eccentric semi-ball valve, actuator with integrated structure, built-in servo system of electric actuator, control signal input 4-20mA or 1-5vdc and 220VAC power control. Electric eccentric semi-ball valve is a valve plate part around the eccentric axis rotation to control the flow of the angular travel valve. The center of rotation of the spool is not concentric with the axis of rotation, can reduce wear, prolong the service life of valve core, is arranged at the rear part of a guide wing, is advantageous to the fluid flow stability, has good stability. Secondly, there are large flow, features of adjustable range. Electric eccentric semi-ball valve (CAM flexure control valve) is widely used in petroleum, chemical, electric power, metallurgy, steel, paper, pharmaceutical, food, textile, light industry and other industries.
The main technical parameters of ■
● valve;
The valve body form: eccentric rotary valve
Nominal diameter: DN25 ~ 300mm
Nominal pressure: pn1.6, 2.5, 4, 6.4Mpa, (Note: pn6.4mpa is only used for DN25 ~ 150 valve)
Flange standard GB, JB, Hg, ANSI, JIS etc.
Connection: on the clip, flange type
Valve cover in the form of integral (applicable to the temperature -45 ~ +400℃)
The gland bolts type: type
Packing: V PTFE, PTFE asbestos packing impregnated asbestos packing, graphite packing, textile
● valve parts
Eccentric rotary valve spool form: (with a guide wing)
Flow characteristics: the approximate percentage
● actuator
Actuator type: Chr, 3810R, dzw, HQ, PSQ
Main technical parameters
The power supply voltage: 220v/50hz, 380v/50hz, 4-20mA or 1-5v-dc input signal, the output signal:: 4-20mA DC
Protection grade: IP65 (or IP67), explosion-proof symbol: exdⅡ BT4, manual operation function: handle
Environment temperature: -25 ~ +70℃, the humidity of the environment: ≤ 95%;
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