Explosion-proof factory submersible pump WQB200-50-55 sewage pump drainage pump

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.>Technical requirements for explosion-proof submersible pump equipment:
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.>, motors and other similar equipment due to bearing damage, resulting in bearing damage If the explosion-proof surface at the shaft is damaged, the end cover must be replaced (the explosion-proof surface gap at the shaft should be between ..mm).
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.>, the explosion-proof gap surface at the joystick should be between ..mm.
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.> The smoothness of the explosion-proof surface of the repaired equipment and accessories should not be lower than △, and the smoothness of the joystick and other similar parts should not be lower than △.
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.> There should be no rust on the explosion-proof surface of the repaired equipment and accessories.
Song Dynasty) ) .>
Song Dynasty.> There are small pinholes on the joint surface, no more than one per square centimeter, and the diameter does not exceed .mm and the depth does not exceed .mm.
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.>, the depth and width of mechanical scars shall not exceed .mm, the projected length of the scar shall not exceed % of the relative volume joint surface width, and the depth of individual scars shall not exceed mm. , the sum of the shortest flaw-free distances between the flaw and the joint surface is not less than the width of the joint surface specified by the corresponding volume.
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.>, Paint and mechanical debris are not allowed on the flameproof surface
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.>, Explosionproof The surface should be coated with an appropriate amount of neutral Vaseline and other qualified anti-rust oil (such as medical Vaseline oil) or phosphating (Vaseline oil can also be applied after phosphating). The oil should form a thin film on the explosion-proof surface.
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.> Fasteners should be complete, complete and reliable. The specifications of nuts and bolts in the same location should be consistent. The exposed part of the screw should generally not exceed three buckles and be less than one buckle.
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.> The nuts of the fastening bolts on the flameproof joint surface must be fully tightened. The length of the fastening screw extending into the screw hole should not be less than the thread diameter (cast iron, copper, aluminum, etc. should not be less than .
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.> The fastening bolts of flameproof joint surfaces should be equipped with spring washers or back caps (when using spring washers, their specifications should be consistent with the bolts, and the tightening degree should be Flatten it to pass).
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.> The deformation length of the explosion-proof shell shall not exceed millimeters, and the convex and concave depth shall not exceed millimeters.
) ) >Contact information:
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