Explosion proof valve electric device DZB15-24

1Explosion proof valve electric device DZB15-24execution standard

The performance of this product meets the requirements of JB/T8528-1997 "Technical Conditions for Electric Devices of Ordinary Valves". The performance of the explosion-proof type complies with the provisions of GB3836.1-2000 "Electrical Equipment for Explosive Gas Environments Part 1: General Requirements", GB3836.2-2000 "Electrical Equipment for Explosive Gas Environments Part 2: Explosion proof Type" d "", and JB/T8529-1997 "Technical Conditions for Explosion proof Valve Electric Devices".DZB15-24The motor power of the explosion-proof valve electric device is 0.37KW, the output torque is 150N. M, the output speed is 24R/MIN, the protection level is IP65, and the explosion-proof level is ExdIIBT4.

Multi turn electric devices are classified by protection type: outdoor type and explosion-proof type;

IIExplosion proof valve electric device DZB15-24Occasions for use

3.2.3 Protection type: Outdoor type is used in places without flammable, explosive, and non corrosive media. There are two types of explosion-proof products, d Ⅰ and d Ⅱ BT4. d Ⅰ is suitable for non mining working faces in coal mines; DIIBT4 is used in factories and is suitable for explosive gas mixtures in environments of IIA and IIB levels T1 to T4. (See GB3836.1 for details)

IIIPrecautions for installation and disassembly

7.1 There are no principle requirements for the installation form of this electric device, but when the motor is in a horizontal state and the electrical box cover is in a horizontal or vertical upward state, it is an installation form that is conducive to lubrication, debugging, maintenance, and manual operation;

During installation, the space required for maintenance and inspection personnel to disassemble each component should be ensured;

7.3 The axial clearance between the installation and valve connection teeth should not be less than 1-2mm;

The bolts connected to the valve shall not be lower than grade 8.8;

When used for open stem valves, the extension of the valve stem should be checked to ensure that it matches the length of the valve stem sheath;

7.6 When disassembly is required, the manual handwheel should be rotated several times before proceeding with the valve slightly open;