The buried (extended stem) elastic seat sealing gate valve adopts a design scheme that can be maintenance free and extend the valve stem. It is buried once to avoid the expensive cost of the valve well and the huge investment caused by multiple road renovations and valve replacements. It beautifies the road environment, is resistant to rolling, and avoids stable accidents caused by the loss of the well cover. The valve stem can expand and contract freely according to the valve well, and the top of the valve stem of the buried (extended rod) elastic seat sealed gate valve is equipped with a valve switch display, which can be equipped with a signal remote transmission device and a valve misoperation locking device.

Precautions for installation of buried (extended rod) elastic seat sealing gate valve: The connection between the gate valve and the pipe should be kept natural and smooth to avoid bending force. The expandable pipe should correspond to the corresponding space, and the buried extended rod elastic seat sealing gate valve should be installed reliably on the same horizontal ground. For the convenience of future operation, the distance from the telescopic rod to the well chamber should be 5-10 centimeters.

Technical parameters of buried (extended rod) elastic seat sealing gate valve:

Nominal pressure: 1.0-2.5MPa

Nominal diameter: 50-600mm

Working temperature: 0-90 ℃

Applicable medium: water

Well casing length: 0.3-2m

Expansion and adjustment of well casing: 0.2-1m

Pressure rating: 1.0MPa; 1.6MPa

Valve body material: gray cast iron, ductile iron

Drive mode: manual