Wafer supply PZ43H manual knife gate valve stainless steel knife gate valve manufacturer, wholesale

Second, the high bolt knife gate valve Products: knife gate valve opening and closing member is a gate, the direction of movement of the fluid direction perpendicular to the gate, knife gate valve can only be fully open and fully closed, can not be adjusted and the throttle. Knife gate valve is mainly made up of body, O-rings, gate, stem, frame and other components. Wafer knife gate valve integrated structure, small size, light weight; completely open channel, you can prevent the deposition of the media in the valve can be replaced sealing structure, a change in the general slurry valves and knife gate valve repair is difficult. Body material cast from the traditional replace become ductile, better corrosion resistance, effectively extending the service life. Knife gate valve has two sealing surfaces, sealing surfaces the most common mode of gate valve forming wedge, wedge angle with the valve parameters vary, usually 50, wedge type knife gate valve can be made into a whole, called the rigid gate; also be made to produce small quantities of deformation gate in order to improve its process of, to make up the sealing surface angle deviations arising during processing, this gate is called the flexible gate knife gate valve is closed sealing surface can only rely on media pressure to seal, which rely on media pressure to ram pressure to the sealing surface of the other side of the seat to ensure the sealing surface of the seal, which is self-sealing. Most knife gate valve is sealed by force, that the valve is closed to rely on external pressure to force the gate valve to ensure that the sealing surface of the sealing. Third, the Shanghai high knife gate valve plug Applications: Knife gate valve due to the use of knife gate, has a good shearing, best suited to the fluid slurry is difficult to control, granular powder, fiber, widely used in papermaking, petrochemical, mine, drainage, food and other industries. Knife gate valve with a variety of seating options, and can be controlled according to site requirements, equipped with electric devices or pneumatic actuators, valve automation to achieve. Advantages knife gate valve: 1. Fluid resistance, small sealing surface by the media distressed brush and erosion. 2. The knife gate valves open and close more effort. 3. The medium flows unrestricted, non-spoiler, without reducing pressure. The valve body is simple structure, length short, good manufacturing processes, a wide range. Shortcoming knife gate valve: 1 between the sealing surface can lead to erosion and abrasion, maintenance more difficult. 2. Overall large size, open requires a certain amount of space, opening and closing a long time. Tel: 021-66358043 Fax: 021-56813595 Mobile: 13524123461