feeding valve according to the operation mode can be divided into three, with manual feeding valve, pneumatic feeding valve, electric feeding valve and so on the many kinds of types.

manually or by hand wheel gear, pneumatic, electric in the feeding valve installed on the corresponding driving devices.

feeding valve is opened and closed operation, dynamic emptying valve, marked on the handwheel open-close indicating arrow direction and text on the valve at the same time set up opening indicator, rotating the handwheel clockwise, feeding valve closed; The handwheel counterclockwise, the feeding valve opening, the opening indicator can indicate the feeding valve open/close state; Applied force shut closed to prevent leakage. Don't allow in Industrial Valves replacement of packing pressure condition, but can be appropriate compression packing. Open and closed at the beginning of the end for opening and closing torque is the largest, feeding valve opening and closing only allow a person holding the wheel edge forcibly rotating the handwheel, must not be allowed to use leverage increased open-close torque, or other tools to prevent damage to the handwheel, stem, or stem nut and other components.

feeding valve installation using the

1, the feeding valve should try to avoid acid-base medium used interchangeably ( In addition to the neutralization reaction medium) To avoid shorten life.

2, the next exhibition type feeding valve should be installed where no violent vibration and impact, and the use of the valve without damage to the field.

3, before installation should pay attention to the screw mechanical parts balance, lift ( Activities) Whether or not flexible.

4, the exhibition type feeding valve before installation, need to carefully check valves, and eliminate the valve internal damage in the process of transportation and storage.

5, when discharging the jams, can use a metal rod or hard tools dredge, attention should be paid to the metal rod or hard tools don't damage the disc and seal ring contact surface.

6, emptying valve should be stored in ventilated and dry warehouse in whole, is strictly prohibited stacking in the open air, or on both ends of the valve size should be plate blocked.

7, according to the dielectric performance and lifetime, often should check the valve at the top of the ptfe sealing ring and orifice of four fluorine chips. If found damaged should be replaced in a timely manner to use again.

8, if found damage to the valve surface should immediately stop using, can be used special materials to repair the affected area, or entrust relevant production unit production.

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