working principle:

Turn the handwheel, through the advance and retreat of the thread of the handwheel and the valve stem, lift or lower the valve plate connected with the valve stem, to achieve the function of opening and closing

The type of gate width can be divided into wedge gate type gate valve and parallel gate gate valve according to the configuration of sealing surface. Wedge gate gate valve can be divided into: single gate type, double gate type and elastic gate type; parallel gate type gate valve It can be divided into single gate type and double gate type. According to the thread position of the valve stem, it can be divided into two types: open stem gate valve and dark stem gate valve.

The installation and maintenance of fluorine-lined gate valve should pay attention to the following matters

The handwheel, handle and transmission mechanism are not allowed to be used for lifting, and collision is strictly prohibited.

Double-gate gate valves should be installed vertically (ie, the stem is in the vertical position and the handwheel is on top).

The gate valve with the bypass valve should open the bypass valve before opening (to balance the pressure difference between the inlet and outlet and reduce the opening force).

The gate valve with transmission mechanism shall be installed according to the provisions of the product instruction manual.

If the valve is used frequently, lubricate it at least once a month.

Features:

Lightweight The body is made of high-grade ductile black cast iron, which is about 20%~30% lighter than the traditional gate valve, and is easy to install and maintain.

Flat-bottomed gate seat: The traditional gate valve often accumulates in the groove at the bottom of the valve due to foreign objects such as stones, wood blocks, cement, iron filings, sundries, etc. after the pipe is washed with water, which is easy to cause the water leakage phenomenon that cannot be closed tightly. The bottom of the elastic seat seal gate valve adopts the same flat-bottom design as the water pipe machine, which is not easy to cause debris accumulation and makes the fluid flow unobstructed.

Overall rubber coating: The gate is made of high-quality rubber for the overall inner and outer coating. The first-class rubber vulcanization technology in Europe enables the vulcanized gate to ensure accurate geometric dimensions. Good elastic memory. water

Precision casting valve body: The valve body adopts precision casting, and the precise geometric dimensions make the valve body internal without any finishing machining to ensure the tightness of the valve.