Your Address : Globalchemmade--Shanghai Kafei Valve Co.,Ltd
Name:Shanghai Kafei Valve Co.,Ltd
Type:Others
Tel:021-54352330
Fax:021-54352330
Email:sales@kafei.com
Address:China(Mainland)
Equipments detail
| Equipment: | Flange Gate Valve |  |
| Equipment Type: | Pumps And Valves -> Gate Valve | |
| Unit Type: | ||
| Technical Parameters: | ||
| Post Time: | 2010-09-28 | |
| Main Features: | ||
| Usage: | ||
| Description: | Flange gate valve opening and closing pieces are, the movement direction of the gate perpendicular to the direction of the fluid, the valve can only be fully open and fully closed, can not be adjusted and cut expenditure. There are two gate sealing surface, the most common mode of gate valve sealing surface to form two wedge, wedge angle with the valve parameters vary, usually 50, the medium temperature is not high when 2 ° 52 ''. Wedge gate valve can be made into a whole, called rigid gate; also be made to produce small deformation gate in order to improve its process, make up the sealing surface angle deviations arising during processing, which gate is called the flexible gate. Valve types, according to the sealing surface configuration can be divided into wedge gate-type valve and parallel gate gate valve, wedge gate-type valve can be divided into: single-gate type, gate-type double plate and elastic; parallel gate-type valve can be divided into single-gate type and double plate. Position by the valve stem threads are divided into clear shot valve and the dark bar gate two. Valve closed, the sealing surface can only rely on media pressure to seal, in which the medium pressure to ram pressure to the other side of the sealing surface of the seat to ensure the sealing surface of the seal, which is self-sealing. Most of the valve is sealed by force, that the valve is closed, to rely on external pressure to force the gate to the seat in order to ensure the sealing surface of the seal. Gate valve with the valve stem with a straight line, called the lift rod valve (also called clear shot valve.) Often movements are trapezoidal threaded rod, nuts through the valve and the valve on the top of the guide slot, the rotary motion into linear motion, that is, the operation of torque, thrust into action. | |