2
A*
4.00
4.12
4.12
4.63
5.38
5.63
6.25
6.63
7.00
7.44
8.50
8.50
10.00
10.50
11.50
12.00
B
26.74
30.84
38.83
46.56
57.81
66.50
72.00
80.13
91.63
99.88
119.94 128.06 138.94 147.44 159.25 175.63
C
5.00
6.19
8.50
10.62
12.75
15.00
16.25
18.50
21.00
23.00
27.25
29.50
31.50
33.75
36.00
40.25
D
11.50
11.86
11.86
13.39
15.64
16.39
18.25
19.39
20.50
21.82
25.00
25.00
29.50
31.00
34.00
35.50
3
3/4
200
2.00
3.250
4
3/4
200
2.25
3.375
6
3/4
200
2.50
3.625
8
7/8
318
2.75
4.000
10
1
473
3.00
4.500
12
1
1/8
684
3.25
5.000
14
1
1/8
684
3.50
5.125
16
1
1/4
952
3.75
5.250
18
1
1/4
952
3.75
5.625
20
1
1/4
952
4.00
5.750
24
1
1/2
1675
4.50
6.500
26
1
5/8
2150
5.00
7.375
28
1
5/8
2150
5.25
7.625
30
1
3/4
2690
5.75
8.125
32
1
7/8
3323
6.00
8.500
36
2
4056
6.50
9.250
CLARKSON
KNIFE GATE VALVE MODEL ZP3OO
INSTALLATION AND MAINTENANCE INSTRUCTIONS
OVERALL ENVELOPE DIMENSIONS FOR ZP300 WITH HC ACTUATOR
Size NPS
3
4
6
8
10
12
14
16
18
20
24
26
28
30
32
36
BOLTING AND INSTALLATION INSTRUCTIONS
ZP300 standard flange configuration is
“flanged” where port flange mounting holes are
drilled and tapped. Flange mounting holes in
chest area are limited to a depth of 1 x flange
bolt diameter. It is recommended that studs
be used on all flange mounting holes in chest
area.
WARNING
Care must be taken when installing studs or bolts
in tapped flange holes in chest area to prevent
damage to internal wall profile.
NOTE
Optional through bolting configurations are also
available.
ZP300 Series valves are design to suit flanges
compliant to ASME B16.5 and B16.47, and
gaskets designed to ASME VIII-1 Appendix
2, and ASME B16.20 and B16.21. Torque on
Flange bolt should not exceed values shown in
Table 1.
TABLE 1 - MAXIMUM TORQUE ON FLANGE BOLT/STUD
Valve size
NPS
Bolt size
Torque
(ft⋅lb)
Recommended bolt
length (in)
Recommended stud
length (in)
INITIAL INSPECTION
NOTES
1. Maximum torque should not be exceeded to insure threaded flange holes in valve body are not damaged.
2. The recommended bolt length assumes; final gasket Thickness = .125", Min F436 Flatwasher Thickness 1x
bolt diameter thread depth, and common heavy hex bolt lengths. Use the below equation to calculate flange
bolt length per your application. It is strongly recommended stud to be used to achieve maximum thread
engagement length.
FIGURE 1
4.
Packing assembly:
the packing gland bolts
should be checked and adjusted to obtain
a first time packing seal. Packing gland
nuts may become slightly loose when valve
is shipped. Field adjustment is expected
and desired. (Figure 1. Tighten just enough
to stop any leakage. Overtightening may
increase valve operating torque and shorten
packing life).
* Face to face dimensions per MSS SP-135 long pattern
1. Examine entire valve and report any damage
or discrepancies immediately.
2. Accessories, if any, including solenoids,
limit switches, positioners, etc., are tested
for functionality prior to shipment. Examine
carefully for damage which may occur
during shipment.
3.
Operators:
standard manual hand wheels
may be shipped loose for field installation.
It is necessary to use a pipe wrench or large
crescent wrench to properly tighten the
hand wheel retaining nut. Be sure to fully
tighten.