Manual Through Conduit Knife Gate Valve,Lug Type/Wafer Type

Technical Data

Sizes:

DN 50 to DN 600 (larger diameters on request)

Actuator :

Hand wheel, Electric ,Pneumatic (single & double-acting),

Chain wheel ,Hydraulic

Standard flange connection:

GB/T 9113.1-2000,JB/T 79.1-1994,HG 20592-2009

ASME B 16.5 EN 1092-1:2001

Seat Material:

Resiliant: PTFE/EPDM/NBR

Metal: Tungsten Carbide/Satellite/304/316

Face to face standard:

MSS SP 81-2001,GB/T 12221-2005J16

Certificate:

CE, ISO9001 Accredited

Application:

Pulp and Paper/ Mining /Waste Water Treatment/ Food and Beverage/Chemical Plants/ PowerPlants/ Steel Industry/Etc.

Pressure:

1. Lug water knife gate valve:DN50-DN600

Pressure rating:DIN PN10,PN16,ANSI 150

2. Wafer thtough conduit knife gate valve:DN50-DN600

Pressure rating:DIN PN10,PN16,ANSI 150

Features

1. Integral body design,small flow resistance,smooth operation.

2. Stem drive is designed with 2plane bearings,the driving friction is greatly reduced so making operation of valve become smooth and light.

3. Seat with moveable sealing design and O-ring can provide a preloading force to push the seat sealing ring touching tightly with gate which can probide a self compensation to the sealing surface when it had been worn after long time in service,so its service life can be increased.

4. Fixed guide claw,without groove design,so medium is not easy to be accumulated and blocked.

5. Material of seat is selected according to the medium and service condition,choosing metal seal or soft seal.Metal seal with gate surface is coated with hard chtomium,or Nitriding treatment,to increase its wear resistance.Soft seal will be with PTFE seat,or EPDM,NBR,which have good sealing performance and excellent corrosin resistance.

6. With excellent sealing performance and economical practicality,and its operation can be by manual,pneumatic or electric actuator,so its application is very wide.

Company Introduction

Coosai a specialized valve manufacturer which has 30 years’ experience in the design and manufacturing of quality engineered valves.

Coosai has a sound organization structure, professional technical capacity, advanced manufacturing and testing equipment, rigorous quality control system and well trained service staff. There is a real technical proficiency at Coosai with an organization to produce and supply valves according to any specific requirements the customer may ask.

Coosai workshops cover an area of 12000 square meters. Total registered asset is RMB 80 million. Besides ISO9001:2008 quality management and QC system, Coosai has the capability in offering varied products by virtue of over 100 sets large scale CNC lathes, testing equipment and computerized control valve testing and calibration bench. Nondestructive testing equipment include PT,UT,MT and RT are available.

Coosai produces quality Ball Valve, Gate valve, Globe valve and Check Valve, Knife gate valve and Segment Ball Valve, Control valves and Butterfly Valves. Valve size from 1/2”—60”,pressure from 150LB-2500LB,temperature range from -196ºC to 610 ºC, connected with manual, pneumatic, electric, hydraulic operator etc.

Coosai valves are CE PED 97/23/EEC, API 6D-0749, API6A-1199,API607 (fire safe) and TS certified. Coosai is Tier One supplier for SINOPEC and CNPC.

Coosai is dedicated to offering the best configuration and satisfy client’s expectations and their eventual commitments.

We look forward to meeting all distinguished clients and industry experts and sincerely welcome all your valuable inquiries.