Knife gate valve introduction

Knife-type gate valve is a kind of gate valve, is the straight stroke cut-off valve, knife gate valve plate head with oblique edge, the media has a certain cut-off effect, suitable for containing fiber and solid particulate media and sewage treatment systems, Peiyu manual, pneumatic, electric actuators, widely used in papermaking, mining, chemical, sewage treatment process control system.

Features

1, the valve with the overall design, fluid resistance, flexible and convenient operation. 
2, manual knife gate valve screw drive with double plane bearing design, making the transmission friction greatly reduced, so the valve open light and smooth. 
3, the knife valve seal seat with a movable seal, and the use of O-ring preload to provide pre-tightening the seal seat close to the valve, the amount of leakage greatly reduced on the long-term use of seal wear automatic compensation function to improve The service life. 
4, fixed guide claws, no groove design, not easy to cause media accumulation or jamming. 
5, The valve seat can choose metal hard seal or soft seal according to the requirement of medium and working conditions: The gate adopts the chrome plating or ion nitriding on the surface to make the gate more wear-resistant and the service life of the sealing surface is longer; the soft sealing is optional PTFE seat or reinforced PTFE seat or EPDM, NBR, good sealing, corrosion-resistant. 
6, the media to adapt to a wide range: good sealing performance and economic practicality, operation can be manual, pneumatic, electric, practical range is very wide.

design standards

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 standards: JB / T 9092 -1999 
hardness Sealing level: MSS SP 81-2001 40ml / inch 
Pressure - Temperature Ratings: GB / T 12224-2007, ASME B16.34-2003, ISO 7005-1 
Construction Length Standards: MSS SP 81-2001, B / T 12221-2005 J16

Product performance parameters

Product parts materials

Product appearance and structure size (PN10)