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Automatic drain valve instructions

2018-09-06 15:09:45

Auto drain valve are often used to automatically drain water from low pipes, refrigerated dryers, oil-water separators, and various air filter bottoms.

Technical indicators:
Guaranteed pressure resistance 1.5MPa{15.2kgf/cm2}
Maximum working pressure 1.0MPa{10.2kgf/cm2}
Working pressure range 0.15-1.0MPa{1.5-10.2kgf/cm2}
Environment and fluid temperature 5-60 ° C
Receiver Rc (PT) DN10-DN40
Drainage port Rc(PT)3/8
Metal cup
note

1. When installing the drain pipe, use a pipe with an inner diameter of 10 mm or more, and the length should not exceed 5 m. Do not bend the pipe upward.

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working principle:
1. When there is no pressure in the water cup, the float closes the inner cavity, the piston is pressed by the spring, and the condensed water is discharged through the drain hole. 2. When there is pressure in the water cup, when the pressure is above 1kgf/cm2, the piston overcomes the spring upward pressure. Therefore, the drain hole is closed, and the inside of the cup is separated from the outside. 3. When there is condensed water in the water cup, when the condensed water is collected to a certain extent, the float rises due to buoyancy, opens the inner cavity hole, the pressure enters the inner cavity, the piston is pressed by the pressure and the spring, and the condensed water is drained through the drainage pipe.
maintenance:
Decompose, clean and reverse the combination in the following order:
A: cut off the inlet air of the drainer; B: release the decompression screw to deflate; C: confirm that there is no pressure in the drainer to remove the connecting nut; D: remove the coarse filter mesh fixing nut; E: turn counterclockwise Drainage pipe, water cup, float ball, drain pipe disassemble and remove the fine filter net; F: remove the control rod to take out the valve and the float; G: use both hands to hold the cavity and the drain pipe carefully to separate it at a 90-degree angle. Take out the spring and fine filter net and venting sheet; H: completely remove the stain with neutral detergent, in reverse order, group 1, the maximum use pressure is 1.0MPa; 2. The flow rate must be greater than 400L/min, the pressure is above 0.15MPa; The main components of cleaning are fine filter screen and venting piece, which directly affect the piston action.

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