Knowledge of Mining Water Distribution Gate Valve

Knowledge of Mining Water Distribution Gate Valve

summary:

1》 The PZ series water distribution gate valve is a manual, right angle gate valve that can withstand a pressure of 0.1Mpa. Mainly used for water distribution in various suction wells underground in mines. It can also be used for mineral processing, water treatment tank discharge, and water without corrosive media, with a water temperature not exceeding 80 ° C According to different working modes, it can be divided into manual (PZ-I type) and electric (PZ-II type)

2》 Model meaning: such as PZ-400-II

PZ - Water Distribution Gate Valve

400- nominal diameter (mm)

II-II type (electric)

3》 Structure description:

1. The water distribution gate valve consists of a control panel, connecting rod, valve stem, gate valve, short pipe, etc.

2. The control panel is manually operated. The handwheel and nut are fixed together. Rotate the handwheel to drive the screw up and down. The lower end of the nut is equipped with a rolling ball to reduce resistance during rotation. The PZ-II model can use a small electric motor as a power source to replace manual operation, and can achieve remote control, which is convenient. quick.

3. A gate valve consists of a valve body and a valve disc.

a. The valve body is a welded component, with a conical sealing ring installed at the lower part, which together with the valve disc forms the sealing part.

b. The valve disc is composed of welded parts and rubber pads, and is hinged to the valve stem through a ring screw assembly to ensure the sealing performance of the valve.

4. Short pipes are used to purchase the well walls of water distribution wells and are welded components.

5. The length of the connecting rod is determined by the height difference between the bottom plate of the water distribution well and the bottom plate of the pump room.

4》 Complete supply scope: one control panel, one gate valve, one short pipe, one connecting rod, one rubber gasket for connecting gate valve and short pipe, one set of bolts (with nuts), two sets of bolts (with nuts) for connecting valve stem, connecting rod, and control panel screw, PZ-II type also includes electric control components. If you need an electric control cabinet when ordering PZ-II type, please indicate it when placing the order. If the length of the connecting rod is not specified during ordering, the maximum length shall be supplied.