Yangzhou Huatong Electric Valve Manufacturing Co

Detailed description of electric head explosion-proof丨丨r/:
The performance of this product complies with the provisions of B/- "Technical Conditions for Valve Electric Devices". The performance of the explosion-proof type complies with B "Electrical Equipment for Explosive Gas Environments Part 1: General Requirements", B "Electrical Equipment for Explosive Gas Environments Part 2: Explosion-proof Type" and B/- "Technical Conditions for Explosion-proof Valve Electric Devices" Provisions. This device does not need to be equipped with an electric control box/cabinet, and has a control button on the machine head for local control. When switching to remote, it can accept centralized control of signals from the central control room (the regulated type can accept analog signals), and at the same time output the corresponding valve position feedback signal, realizing industrial control automation to a great extent.
Technical parameters:
, Power supply: conventional, three-phase
Special, three-phase,, (,)
Single-phase, (,)
Ambient temperature: - ~+℃ (special order-~+℃).
Relative humidity: (at ℃)
Protection level: (special order,).
, working system: short time and minutes (3 minutes for special orders).
B flameproof electric device performance parameter table
Model

Nominal
Torque



Max. Control torque



Minimum control torque


Number of output shaft rotations
(turns)

Allowable valve stem diameter


Manual speed ratio

Output speed
(r/)



Motor
Power








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Main models of series electric devices:

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