KV30 ECO0 pages
Kempster Engineering Ltd.
Unit 1 The Astra Centre
Royle Barn Road
Rochdale
Lancashire
OL11 3DT
01706 – 345599
Contact: tony@kempsteruk.com
david@kempsteruk.com
Kempster ECO Knife Gate Valve
1. Features
A one-piece resilient seated bi-directional wafer style pattern Knife Gate Valve providing a tight shut-off
on an extensive range of slurries from heavy sludges to clean fluids. The blade has a round bottom and
chamfered knife-edge to cut the demanding product media. An Internal and external powder coated
blue paint finish for the valve body is used as a rust preventative. The gland packing can be replaced
without removing the valve from the pipeline.
2. Operating Systems
Non – rising spindle hand wheel
Double acting pneumatic cylinder
Electric Actuation
3. Materials of Major Components (Item numbers are shown in Figure 1)
Item Description Material
1 Body Ductile Cast Iron QT450-10
2 Blade Stainless Steel 304
3 Seal NBR
4 Bracket Carbon Steel Q235A
5 Yoke Brass HPb59-1
6 Hand Wheel Cast Steel ZG230-450
7 Spindle Stainless Steel
8 Spindle Nut Cast Aluminum BronzeZCuAL10Fe3
9 Gland Housing Ductile Cast Iron QT450-10
10 Gland Packing PTFE
3. Major Technical Parameters
DN (mm) Max. Working Pressure (bar) Max. Pressure Difference (bar)
50-150 10 16
200A250 10 10 10
300A350A400 10 6.5 8.5 6.5
450A500A600 10 5 6 4