Valve in all the temperature range suitable for most of the switching operation, no vibration and the utility of hydrocarbons. There is vibration in the operation, the valve may be from their normal position open or closed. Unless the stem packing is carefully regulated valve torque characteristics better than ball valves and plug valves, but no 90-degree swivel action to facilitate the operation characteristics
1, the size of DN50 (2 in) or larger size of the manually operated valve should be equipped with flexible gate or expanding gate. Wedge gate valve is usually no valve chamber overpressure protection
2, no clear protection bar gate, not recommended. Because of the marine environment will be exposed to the stem and thread corrosion, the valve operation difficult and easy to damage the valve stem packing
3, with the reverse effect on the board of the gate, adapted to automatically shut down system operation. These valves can be used for simple push-pull actuator, therefore, to avoid the usual ball and plug the complex required the cam lever. All the power valve actuator with movable parts can be closed, eliminating the paint and corrosion products because of pollution
4, gate valve can not be used for cutting operations. Especially for the fluid containing sand, cutting may damage the sealing surface
5, soft sealing gate valve of the operating temperature limits by sealing material

MORE NEWS