Operating & Service Manual 2 OPS-804 Rev.01
Section 2 General Operation
2.1 General Description
The VERSA-SLAB
TM
–LS Gate Valve means closing member (shutter) movable in the vertical direction of the
channel axis of the valve, the pipe is mainly used as cutting medium effect, i.e., fully open or fully closed use.
As the throttle valve is generally not used. It can be used in high temperature and high pressure, and can be
used in various media.
Rotate stem clockwise to "close", counterclockwise to "open".
2.2 Operation Specification
Refer to specific assembly drawing and parts list.
Size
(Bore)
Working Pressure
(Psi)
Breaking Torque
(FT LBS)
Running Torque
(FT LBS)
No. of Turns
2-1/16"
2000 ~ 5000
<20
<10
16
2-1/16"
10000
<35
<20
14
2-9/16"
2000 ~ 5000
<40
<25
20
2-9/16"
10000
<80
<30
16
3-1/8"
2000 ~ 5000
<50
<30
20
3-1/16
”
10000
<100
<50
20
4-1/16"
3000 ~ 5000
<80
<35
23
4-1/16"
10000
<180
<40
23
Breaking Torque denotes torque applied to open valve at full differential rated working pressure.
Running Torque denotes torque applied to operate valve after pressure is equalized across the gate.
NOTE:
It is important to back off ¼ turn after fully opening or closing valve. This is to allow the gate to freely
float acting on by line pressure.