肯特阀门

Cast iron gate valve is a type of valve that has characteristics such as low flow resistance, high height, and long opening and closing time, but its disadvantage is inconvenient maintenance. There are two types of cast iron gate valves: wedge gate valves and parallel gate valves.

Executive standards for non rising cast iron gate valves:

1. Design and manufacturing: according to the provisions of GB/T12234-89

2. Structure length: according to the provisions of GB/T12221-89

3. Flange face size: according to JB79 GB/T9112-9131

4. Inspection and testing: According to the provisions of JB/T9092-99 and GB/T13927-92

What are the executive standards for non rising cast iron gate valves

Structural characteristics of non rising cast iron gate valves:

1. The structure is simple and compact, with a reasonable and novel design. The rigidity of the valve is very good, the passage has a large flow area, the medium is unobstructed, and the resistance is small;

2. The sealing surface is made of hard alloy and stainless steel, which have reliable sealing performance and long service life;

3. Cast iron non rising stem gate valves are filled with graphite material for easy operation;

4. Multiple driving methods can be used, such as manual, electric, pneumatic, gear transmission, etc;

5. The positions on both sides of the gate valve channel are symmetrical, so the medium can flow freely to both sides, making installation very convenient;

6. The structural length of cast iron non rising stem gate valves is short, and the manufacturing process used is good, with a wide range of applications;