DeZurik KGC-MC Instrukcja obsługi - Strona 10
Przeglądaj online lub pobierz pdf Instrukcja obsługi dla Jednostka sterująca DeZurik KGC-MC. DeZurik KGC-MC 17 stron. Metal cutting knife gate valves
Drukuj stronę
DeZURIK
KGC-MC METAL CUTTING KNIFE GATE VALVES
Installing the New Packing
The CW2 packing option scraper ring
(A2) and packing (A8) ring length and
quantity are shown in Table B.
DeZURIK provides extra packing in the
packing kit, but do not try to put more
packing into a layer than shown in
Table B. If packing for low pressure
applications (<40 psi [276 kpa]),
contact DeZURIK.
1. Ensure the gate (A3) is fully closed
and centered in the body before
packing.
2. Assemble and pack the rings one at a
time, with the ends together, but not
overlapped. Ensure the inside and
outside edges of each ring are
packed against the gate and packing
chamber, so that each ring is
compressed flat and evenly.
Note: Stagger the joints, on the long side
of the packing chamber. To pack the
rings, we recommend using a square-
ended wood or plastic tool, driven by a
hammer or mallet. DO NOT use a sharp
tool to pack the rings.
a. Place scraper ring (A2) in the bottom of the packing chamber.
b. Assemble and pack two rows of packing (A8).
c. Assemble and pack the last row of scraper ring (A2). See Figure 5 for packing detail:
D11060
Table B: Packing Rings and Scraper Rings
Length and Quantity
Valve Size
in.
mm.
3"
75mm
4"
100mm
5"
125mm
6"
150mm
8"
200mm
10"
250mm
12"
300mm
14"
350mm
16"
400mm
18"
450mm
20"
500mm
24"
600mm
Figure 5 - Packing Detail
Page 10
Square
Length
Size
Scraper
in.
in.
mm.
mm.
9.50
242
11.50
293
13.50
343
3/8
9.5
15.50
394
20.00
508
25.00
635
29.00
737
1/2
12.7
32.00
813
36.75
934
41.25
1048
45.25
5/8
15.9
1150
53.50
1359
No. of
No. of
Packing
Rings
Rings
2
2
November 2020