Extension stem gate valve is usually composed of valve body, valve seat, valve stem, sealing ring and an operating hand wheel. Its main feature is to improve the convenience of operation by extending the valve stem, This type of valve is suitable for underground or difficult to operate directly. This design can avoid the use of heavy and long valves, there by reducing the difficulty of operation.
Extension stem gate valves are widely used in industrial piping systems, especially in situations where remote operation is required or ground operation is inconvenient. In underground pipeline installations, the extension stem can lift the operating hand wheel above the ground, making it easier for operators to switch.
▪Easy to operate: When used in the treatment of sewage system, the valve stem can be lengthened, which is very convenient for the staff who operate at a higher position.
▪Smooth passage: The extended stem valve is suitable for pipes with larger diameters, with smooth passage and good sealing performance.
▪Corrosion resistance: Valve body inside and outside fusion bonded epoxy coating with excellent corrosion resistant performance.
▪The gate valve does not need the valve well, which reduces the installation capacity and the embedded depth range can be adjusted.
▪The telescopic rod is manipulated through the ground directly. The ground part and underground part are integrated into one, which can effectively prevent theft. The valve stem can be telescoped according to the depth of the valve well.
| SIZE MM) |
L | ø2 | D | D1 | D2 | n-d | øW | H1 | H2 | B | f |
| 80 | 203 | 22 | 200 | 160 | 132 | 8-19 | 200 | 195 | 1000 | 19 | 3 |
| 100 | 229 | 22 | 220 | 180 | 156 | 8-19 | 200 | 210 | 1000 | 19 | 3 |
| 150 | 267 | 26 | 285 | 240 | 211 | 8-23 | 280 | 251 | 1000 | 19 | 3 |
| 200 | 292 | 28 | 340 | 295 | 266 | 8-23 | 330 | 420 | 1000 | 20 | 3 |
