Types of Gate Valves

There are three ways to classify the gate valve.

1. Types of Disk

   1. Solid taper wedge

   2. Flexible wedge

   3. Split wedge or Parallel disks Valve

2. Types of Body Bonnet Joint

   1. Screwed Bonnet

   2. Bolted-Bonnet

   3. Welded-Bonnet

   4. Pressure-Seal Bonnet

3. Types of Stem movement

   1. Rising Stem or OS & Y Type (Outside Stem and Screw Type)

   2. Non-rising Stem type

Features:

● Flat-bottomed seat traditional gate valves are usually deposited in the bottom groove of the valve due to external objects

such as stone, wood, cement, paper, debris, etc., after flushing the pipe with water. Cause cannot close tightly and form slack

phenomenon, soft-sealing gate valve using the same as the pipe at the bottom of the flat design, not easy to cause debris deposition,

the fluid flow unimpeded, the whole package glue valve plate is made of high quality rubber, within the whole outsourcing, domestic

first-class rubber vulcanization technology make the valve plate after vulcanization can ensure accurate geometry size, and rubber

and nodular cast iron gate connecting firm, not easy to fall off and elastic memory preferred.

● The corrosion resistant valve body is painted with powder and epoxy resin to prevent corrosion and rust of the valve body, and can

be used in sewage system.

● Not easily broken into traditional cast iron.