Explosion proof electric control valve

NegotiableUpdate on 12/10

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Overview

Explosion proof electric control valve

Product Details

Overview of Explosion proof Electric Control Valve Products:
Explosion proof electric control valve is the execution unit of instruments in automation control systems. It is powered by AC220V power supply voltage and receives current or voltage signals (4-20mA, 0-10mA, or 1-5VDC) from DCS, PLC systems, regulating instruments, operators, etc. to control operation. It adopts an electromechanical integrated structure and has functions such as internal servo operation, position feedback of opening signals, position indication, manual operation, etc. It has strong functionality, reliable performance, simple wiring, and high adjustment accuracy. It changes the valve opening displacement with the thrust output of straight stroke, achieving precise adjustment and control of process parameters of fluid medium.
The explosion-proof rating of the actuator is EXd II BT4/EXd II CT4
Explosion proof electric control valves can be classified according to their operating modes;
Positive effect: Electric close type - normally open type (when the electrical signal increases, the valve position shifts downward), Type B
Reaction: Electric open normally closed type (when the electrical signal increases, the valve position shifts upward), K-type
The 3810L or PSL straight stroke fully electronic electric actuator is a driving device for electric control valves, designed with an integrated structure. It is powered by an AC220V power supply voltage and directly receives a unified standard signal (4-20mA, 0-10mA or 1-5VDC, 0-10VDC), which is converted into displacement corresponding to the input signal. It moves back and forth linearly to change the opening of the valve core. Therefore, a certain input signal corresponds to a certain position opening, achieving proportional action. It is a high-precision, high-performance, and high reliability product
◆ Performance parameters of explosion-proof electric control valve:

Nominal Diametermm		20	25	32	40	50	65	80	100	125	150	200	250	300
seat diametermm		20	25	32	40	50	65	80	100	125	150	200	250	300
rated flow coefficientKv	Single seat	5	8	12	20	32	50	80	120	200	280	450	800	1200
	two-seater		10	16	25	40	63	100	160	250	400	630	1000	1600
rated strokeL（mm）		10	16		25		40			60			100
Model of actuator	3810L	381LS-8	381LS-20		381LS-30		381LS-50			381LS-65			381LS-99
	PSL	PSL201	PSL202		PSL204		PSL208			PSL312			PSL325
	Explosion-proof type	381LX-20			381LX-30		381LX-50			381LX-65			381LX-99
power supply voltage		AC220V 50Hz
Signal range		4～20mA DC 0～10mA DCor1～5V DC 0～10V DC
Mode of action		Electric open type（K）Type, electrically closed type（B）Type
When in a fault state		Fully open, fully closed, self-locking protection position
flow characteristics		Equal percentage, straight line, quick opening ability
Allowable leakage amount（L/h）		Single seat valve:≤10^-4×The rated capacity of the valve; Double seat valve:≤10^-3×Rated capacity of valve
Inherent adjustable ratioR		50:1
Nominal PressurePN(MPa)		1.6 2.5 4.0 6.4

Internal structure diagram of explosion-proof electric regulating valve:

(Top guided type) (Sleeve guided type)

◆Explosion proof electric control valveExternal dimensions and connection dimensions:

◆Explosion proof electric control valveExternal dimensions and connection dimensions:

·Flange standard: Cast steel flange according to GB9113-88
·Flange sealing surface type: PN16 is convex PN40, PN64 is concave convex, and the valve body is concave
·Structural length: GB12221-89
·Jacket insulation type jacket heat carrier interface: butt welding with a diameter of 18 × 4
*The distance between the valve body flange and the flange end face can be manufactured according to the standard specified by the user.
Standards such as ANSI, JIS, DIN, etc.