QB250 explosion-proof valve electric actuator

oneTheQB250Explosion proof valve electricactuatorProduct Description

Partial rotary valve electric device, abbreviated asQ-type electrical installation. It is a driving device for valves to achieve opening, closing, or regulating control, suitable for valves such as butterfly valves, ball valves, plug valves, and dampers that rotate 90 degrees.

This series of electric devices can be remotely controlled or operated on site. Widely used in industries such as power, metallurgy, petroleum, chemical, food, textile, papermaking, pharmaceuticals, water plants, and sewage treatment.

The performance of this product meets the requirementsThe provisions 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".

Partial rotary electric devices can be divided into outdoor and explosion-proof types according to their protection types;

According to the control method, it can be divided into conventional type, integral type, and integral adjustment type.

twoTheQB250Explosion proof valve electricactuatorExplosion proof instructions

Explosion proof valve electric device (hereinafter referred to as electric device) and YaThe BDFs series explosion-proof electric valve only has a complete explosion-proof structure after being assembled with a three-phase asynchronous motor, and its explosion-proof performance meets the requirements of GB3836.1-2000 "Electrical Equipment for Explosive Gas Environments Part 1: General Requirements" and GB3836.2-2000 "Electrical Equipment for Explosive Gas Environments Part 2: Explosion proof Type" d ". The explosion-proof mark of the explosion-proof valve electric device is ExdMBT4, ExdllCT4 (excluding acetylene), which is matched with valves such as butterfly valves, ball valves, and plug valves for partial rotary opening and closing to form an electric valve. It is suitable for places where explosive mixtures of combustible gases and air are formed in Class A, B, and C T1, T2, T3, and T4 groups, and controls the opening and closing of the valve.

When designing the structure of the electric device, full consideration was given to the possibility of explosive mixtures entering the interior of the device and causing an explosion for some reason The safety principle is to ensure that the explosive mixture outside the electric device does not explode, in order to meet the strength of the electric device casing and the bonding surfaces between the various components that make up the casing Take corresponding measures to ensure the explosion-proof performance of the electric device in terms of gap or diameter difference, surface roughness, length, and limiting the shell surface from reaching dangerous temperatures.

threeTheQB250Explosion proof valve electricactuatorDetailed specifications