Emerson Keystone Figure 952 Installation And Operating Manual

Keystone Figure 952 KniFe gate ValVes
InstallatIon and operatIng manual
storage and installation instructions for Dn 50 - 600 (nPs 2 - 24)
Figure 952 knife gate valves
Figure 1
gasket
Flange
tHread deptHs
Valve size thread depth
dn (nps) mm
50 (2) 10
65 (2½) 10
80 (3) 11
100 (4) 11
125 (5) 14
150 (6) 14
200 (8) 16
250 (10) 16
300 (12) 16
350 (14) 16
400 (16) 19
450 (18) 24
500 (20) 19
600 (24) 19
storage
important
Do not remove any identification or instruction
tags. For optimum protection, store valve
undercover.
Valves
Flange faces should be protected at all times
with wooden or heavy cardboard shields.
On iron bodied valves, lubricate threaded flange
emerson.com/FinalControl
Valve
'R' 'R'
bolt holes to prevent rusting. apply protective
coating to seating faces of metal to metal
inches seated valves. Valves should be stored flat
with the flow arrow pointing downwards and in
⅜
the closed position, (but not jammed tight) to
⅜
protect seating faces and gate from damage.
7 /
16
Handwheel spindle threads should nOt be
/
7
16
lubricated otherwise dirt will accumulate in
7 /
16
threads.
/
7
16
⅝
actuators
⅝
⅝ all air line and electrical cable entries should
be plugged. if cylinders are not fitted to a valve,
⅝
¾ they should be stored with the piston rod fully
retracted. Cylinders are assembled with a light
/
15
16
¾ coating of grease on internal components.
¾
spare parts
seats and packings should be carefully stored
and protected from sharp or heavy objects
which will damage sealing faces.
HandwHeel operation
On standard valves, turn handwheel anti-
clockwise to open valves, and clockwise to
close valves.
© 2017 emerson. all rights reserved.
gasket
Flange
Flange bolts
Caution
It is critical that flange bolts do not bottom out in
valve body otherwise valve damage will occur.
to determine bolt length for the blind holes
in the upper chest area of the valve, add
dimension 'r' + gasket + flange thickness + any
washers etc. (plus deflection cone and gasket
when used).
1. stud bolts can be used in the blind holes in
the chest area of the valve body to alleviate
the risk of flange bolts bottoming out.
2. Coating of flange bolt threads with an
anti-seize compound (loctite 729 etc.) is
recommended to prevent bolt seizure,
particularly when using s/s bolts with s/s
valves, or when using steel bolts in iron
valves.
VCioM-02048-en 16/02