cashco 521 Handbuch für Installation, Betrieb und Wartung - Seite 3
Blättern Sie online oder laden Sie pdf Handbuch für Installation, Betrieb und Wartung für Kontrolleinheit cashco 521 herunter. cashco 521 20 Seiten. Total tfe, globe-pattern control valve body iom
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ambient tem per a ture; the re main ing pipe
(inlet or outlet) should be sup port ed and
guided to ensure uni di rec tion al ex pan sion/
con trac tion. Properly align prior to installing
valve with required flange bolting.
9. The Model 521 is designed for a flanged
con nec tion that is gasketless. The raised
face portion of end con nec tion flange serves
as the gasket.
10. An ANSI/DIN adapter gasket (17) is supplied
with all Model 521 valves provided with DIN
16/25/40 end con nec tions. See Figure 3.
The purpose of this adapter gasket (17) is
to en sure prop er compression of the body's
TFE core (1.2) when used with DIN piping.
To assist during installation, place pipe
thread sealant on one side of adapter gasket
(17), and press the sealant covered side of
the adapter gasket over the exposed TFE
of the body core (1.2) end connection. The
sealant will hold the adapter gasket (17)
to its proper location prior to joining with a
piping flange.
Figure 3: ANSI/DIN Adapter Gasket
11. Flange bolting must be of the stud-type. Each
flange is drilled and tapped to accept studs.
The studs should be of a length to penetrate
the full depth of the bolt hole through the
flange; DO NOT USE STUDS/BOLTS OF
TOO SHORT LENGTH. See Table 1 for
stud size/thread/length requirements.
IOM-521
TABLE 1
Body Size
End Connection Flange Bolting
In.
(DN)
150#
1/2" Ø - 1-3/4"
1/2"
DN15
13 UNC-2B
1/2" Ø - 2"
1"
DN25
13 UNC-2B
1/2" Ø - 2-1/2"
1-1/2"
DN40
13 UNC-2B
5/8" Ø - 2-1/2"
2"
DN50
11 UNC-2B
No. Bolt Holes
4
* 2" - 300 # requires 8 bolt holes; all others 4.
12. Tighten flange stud nuts uniformly in a
cross ing pattern. Ensure flange facing
align ment. Do not use flange bolting to "pull"
flang es into alignment. Tighten flange bolting
to torque levels of Table 2 in increments of
1/2 rev o lu tion to ensure uniform loading of
valve's raised facing.
TABLE 2
Body Size
End Connection Flange Bolting
In.
(DN)
ANSI-150
1/2"
DN15
10 - 12 ft-#
1"
DN25
10 - 12 ft-#
1-1/2"
DN40
10 - 12 ft-#
2"
DN50
35 - 40 ft-#
Figure 4: End Connection - Partial Section
NOTE: If the installed Model 521 has had
the flange bolting over-torqued, distortion
of TFE core (1.2) will occur. If dimension
"X" in Figure 4 is 0.040" (1 mm) or less, a
gasket is rec om mend ed upon reinstallation.
If dimension "X" is less than 0.020" (0.5 mm),
body re place ment is recommended.
300#
DIN 16/25/40
1/2" Ø - 1-3/4"
14 mm Ø - 45 mm
13 UNC-2B
M12x1.75-6H
5/8 Ø - 2"
14 mm Ø - 52 mm
11 UNC-2B
M12x1.75-6H
3/4" Ø - 2-3/4"
18 mm Ø - 70 mm
10 UNC-2B
M16x2.0-6H
5/8" Ø - 2-3/4"
18 mm Ø - 70 mm
11 UNC-2B
M16x2.0-6H
4 or 8 *
4
ANSI-300
DIN 16/25/40
10 - 12 ft-#
15 - 18 N-m
12 - 14 ft-#
21 - 25 N-m
14 - 17 ft-#
18 - 22 N-m
17 - 20 ft-#
50 - 60 N-m
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