Stainless steel knife type valve

。">2, there are two gate sealing surface, the most common mode of gate valve sealing surface to form two wedge, the wedge angle varies with the valve parameters, usually 50, wedge type knife gate valve can be made into a whole, called the rigid gate; gate can be made to produce micro deformation, to improve in the process, make up the sealing surface angle deviations arising during processing, the gate is called the flexible gate.
、刀型閘閥關(guān)閉時，密封面可以只依靠介質(zhì)壓力來密封

，即依靠介質(zhì)壓力將閘板的密封面壓向另一側(cè)的閥座來保證密封面的密封

，這就是自密封。">3, knife gate valve is closed, the sealing surface can only rely on media pressure to seal, that media pressure will depend on the sealing surface of the ram pressure to the other side of the seat to ensure the sealing surface of the seal, which is self sealing.  ，即閥門關(guān)閉時

，要依靠外力強行將閘板壓向閥座，以保證密封面的密封性

。">Most of the knife gate valve is sealed by force, that the valve is closed, to rely on external pressure to force the gate to the seat to ensure the sealing surface of the seal.

、">Four, Stainless steel knife type valve Technical parameters:
PZ73H knife gate valve (quincunx);
Design and manufacture: JB/T8691-1998;

；">Length: GB/T15188.2-94;

；">Flange: GB/T9113.1-2000 JB/T79-94;
Test and inspection: GB/T13927-92;