Lined with rubber knife gate, QBZ73X lined rubber knife gate valve, Shanghai brand - Valve Co., Ltd. Shanghai-quality and stability: the whole process of quality control, nuanced, comprehensive detection! Reasonable price: high internal cost control, reducing costs, to help customers! Fast delivery: advanced production lines, adequate stocking, shortening delivery time! Provide complete engineering solutions valves, knife gate valve rubber lined pre-sale, sale and professional services. Product Name: lined with rubber knife gate valve Product Type: QBZ73X Drive: hand wheel, sprocket, bevel gear, electric, pneumatic, electric hydraulic connection: Wafer, lug, flange structural forms: gate seal Structure: rubber, soft seal, seal-sided, double-sided seal pressure range: PN10 PN16 150LB Nominal Diameter: DN50- DN1200 common material: cast iron, WCB, stainless steel, duplex steel, etc. nameplate: male workers Brand Product Description Related Products Order Process lined rubber knife gate valve is a replaceable rubber seals of knife gate structure, sealing principle mainly through the gate and rubber seals close to achieve the sealing effect, the main features of this structure is that the rubber seals are envelopes ladder in the groove on the seat, locked by a metal ring gland, making the switch gate seals and sealing process will not fall off, and the seal is broken, you can remove the metal gland free replacement rubber seals. Makes much more efficient use of the valve. Is a cost-effective, high-performance products. Lined with rubber knife gate valve Model: QBZ73X-10C nominal diameter range: DN50-DN1200 Nominal pressure range: 1.0MPa-1.6MPa Material: steel, stainless steel gate material: 2Cr13,201,304,316,316L Connection: Wafer, flanged valve seat ring: NBR, EPDM, Viton packing: graphite packing, PTFE packing Suitable medium: water, powder particles, pulp, rubber lined slurry sugar Knife gate valve design standard flange standard GB / T 9113.1-2000 JB / T 79.1-1994 HG 20592-2009 ASME B 16.5 EN 10920-1: 2001 strength and sealing test standard JB / T 9092 -1999 hardness sealing rating MSS SP 81- 2001 40ml / inch pressure - temperature ratings GB / T 12224 -2007 ASME B16.34 -2003 ISO 7005-1 standard length of the structure MSS SP 81-2001 GB / T 12221-2005 J16 is a gate valve opening and closing parts, brake direction of plate movement perpendicular to the direction of the fluid, the valve can only be fully open and fully closed, can not be adjusted and the throttle. Ram has two sealing surface, the two most common mode of sealing surface to form a wedge gate valve, wedge angle with the valve parameters vary, usually 50, the medium temperature is not high for 2 ° 52 '. Wedge gate valve can be made into a whole, called the rigid gate; can also be made to produce small quantities of deformation gate in order to improve its process, to make up the sealing surface angle deviations arising during processing, this gate board called the flexible gate. When the valve is closed, the sealing surface can only rely on media pressure to seal, which rely on the sealing surface of the medium pressure to ram pressure to the other side of the seat to ensure the sealing surface, which is self-sealing. Most of the valve is sealed by force, that is, when the valve is closed, to rely on external pressure to force the gate valve to ensure the tightness of the sealing surface. Gate valve with the valve stem linear movement, called the lift rod valve also called clear shot valve. Often movements are trapezoidal threaded rod through the top of the valve guides and valve nut on the rotary motion into linear motion, which is the operating torque thrust into action. Open the valve, when the gate valve lift height equal to the diameter of the 1: 1 times, the fluid channel is completely smooth, but at run time, this position is not monitored. Actual use, is the apex of the stem as a sign that the fixed position, as its fully open position. Temperature appears to consider locking phenomenon, usually open to the vertex position, and then rewind 1 / 2-1 circle, as the position of the valve fully open. Therefore, the fully open position of the valve, according to the position of the gate is determined that the stroke. Some valve stem nut located at the gate, handwheel drive stem rotation, leaving the gate to upgrade, this valve is called the rotating rod valve or valve called the dark bar. Valve closure member Principle (ram) movement do fully open and fully closed off with a vertical path along the centerline. Valve selection Gate Valve is mainly used to cut off or turn on the line of medium, is generally not as a regulator or throttling. Category gate valve can be divided according to different classification methods: parallel gate valve, wedge gate valve, lift gate, rotary valve rod, fast opening and closing valve, necking valve, flat gate valve and so on. Valve fluid resistance characteristics, the applicable pressure, high temperature range, medium flow unrestricted, good sealing performance. Contact Shanghai-Valve Co., Ltd. Tel: 021-31263381 (Chen Gong) Fax: 021-60298264 Mobile: 13512135667 E-mail: xgfm021@163.com Address: Industrial Park, Jiading District, Shanghai Huating 1199 URL: http: // www .xgfmvalve.com Related Products: Transmissive Knife Gate More Related Products: See-through flapper valve