|
PRESSURE SEAL GLOBE VALVES - ESPECIFICACION MATERIALES
|
GLOBE VALVES
|
STANDARD MATERIAL SPECIFICATIONS
|
|
SERVICE RECOMMENDATION
- The globe valve is normally
installed with flow direction and pressure under the
disc. In case the flow in valve directs to the opposite
direction, always check at factory before installing
the valve. Under a certain service condition, especially
when a valve is equipped with cylinders or electric
motor actuators, there is a cost advantage in designing
and installing the valve flow over the disc. If the
actuator is sized to such condition, care must be
taken to install the valve correctly.
- The globe valve is suitable
for most throttling applications; however, it must
not be used for a prolonged throttling at 10% open
or less, which may cause excessive vibration, noise
or damage to disc and seat. Use of small valves with
a lower flow capacity may permit the valve to be opened
to a greater percentage, and thus avoid damage. For
continuous severe throttling, a control valve is required.
|
|
|
|
|
|
MATERIALS
(IN ACCORDANCE WITH ASTM)
|
|
NO
|
PART NAME
|
CARBON STEEL
|
ALLOY STEEL
|
STAINLESS STEEL
|
|
TYPE WCB
|
TYPE WC6
|
TYPE WC9
|
TYPE C5
|
TYPE C12
|
TYPE CF8M
|
|
1
|
BODY
|
A216-WCB
|
A217-WC6
|
A217-WC9
|
A217-C5
|
A217-C12
|
A351-CF8M
|
|
2
|
BONNET
|
A216-WCB
|
A217-WC6
|
A217-WC9
|
A217-C5
|
A217-C12
|
A351-CF8M
|
|
3
|
DISC
|
WCB + STL
|
WC6 + STL
|
WC9 + STL
|
C5 + STL
|
C12 + STL
|
CF8M + STL
|
|
4
|
STEM
|
A479-410
|
A479-410
|
A479-410
|
A479-410
|
A479-410
|
A479-316
|
|
5
|
HAND
WHEEL
|
A197 or WCB
|
A197 or WCB
|
A197 or WCB
|
A197 or WCB
|
A197 or WCB
|
A197 or WCB
|
|
6
|
BODY
SEATRING
|
WCB + STL
|
WC6 + STL
|
WC9 + STL
|
C5 + STL
|
C12 + STL
|
CF8M + STL
|
|
8
|
GASKET
|
SOFT STEEL
|
304 S.S
|
304 S.S
|
304 S.S
|
304 S.S
|
316 S.S
|
|
9
|
PACKING
|
GRAPHITE
|
GRAPHITE
|
GRAPHITE
|
GRAPHITE
|
GRAPHITE
|
GRAPHITE
|
|
10
|
GLAND
FLANGE
|
A283-D
|
A283-D
|
A283-D
|
A283-D
|
A283-D
|
A351-CF8
|
|
11
|
GLAND
BOLT
|
A307-B
|
A307-B
|
A307-B
|
A307-B
|
A307-B
|
A193-B8
|
|
12
|
GLAND
NUT
|
A307-B
|
A307-B
|
A307-B
|
A307-B
|
A307-B
|
A194-8
|
|
14
|
PACKING
GLAND
|
C/S 1020 + Cr
|
A479-410
|
A479-410
|
A479-410
|
A479-410
|
A479-316
|
|
15
|
BONNET
BOLT
|
A193-B7
|
A193-B16
|
A193-B16
|
A193-B16
|
A193-B16
|
A193-B8
|
|
16
|
BONNET
NUT
|
A194-2H
|
A194-4
|
A194-4
|
A194-4
|
A194-4
|
A194-8
|
|
17
|
YOKE
CAP
|
C/S 1020
|
C/S 1020
|
C/S 1020
|
C/S 1020
|
C/S 1020
|
C/S 1020 + Cr
|
|
18
|
YOKE
SLEEVE
|
A439-D2
|
A439-D2
|
A439-D2
|
A439-D2
|
A439-D2
|
A439-D2
|
|
19
|
LOCK
NUT
|
A479-410
|
A479-410
|
A479-410
|
A479-410
|
A479-410
|
A479-316
|
|
20
|
DISC
THRUST
PAD
|
A479-410
|
A479-410
|
A479-410
|
A479-410
|
A479-410
|
A479-410
|
|
21
|
YOKE
|
A216-WCB
|
A216-WCB
|
A216-WCB
|
A216-WCB
|
A216-WCB
|
A351-CF8
|
|
22
|
YOKE
BOLT
|
A193-B7
|
A193-B7
|
A193-B7
|
A193-B7
|
A193-B7
|
A193-B8
|
|
23
|
YOKE
NUT
|
A194-2H
|
A194-2H
|
A194-2H
|
A194-2H
|
A194-2H
|
A194-8
|
|
25
|
BONNET
CLAMP
|
C/S 1045
|
C/S 1045
|
C/S 1045
|
C/S 1045
|
C/S 1045
|
A240-304
|
|
26
|
RETAINER
|
C/S 1045 + Cr
|
A240-304
|
A240-304
|
A240-304
|
A240-304
|
A240-316
|
|
27
|
ADAPTER
RING
|
C/S 1045 + Cr
|
A240-304
|
A240-304
|
A240-304
|
A240-304
|
A240-316
|
|
30
|
HANDLE
NUT
|
C/S 1020
|
C/S 1020
|
C/S 1020
|
C/S 1020
|
C/S 1020
|
C/S 1020 + Zn
|
|
34
|
GREASE
NIPPLE
|
STEEL
|
STEEL
|
STEEL
|
STEEL
|
STEEL
|
STEEL
|
|
35
|
STOPPER
|
A216-WCB
|
A216-WCB
|
A216-WCB
|
A216-WCB
|
A216-WCB
|
A351-CF8
|
|
36
|
STOPPER
BOLT
|
A307-B
|
A307-B
|
A307-B
|
A307-B
|
A307-B
|
A193-B8
|
|
38
|
SET
SCREW
|
C/S 1020
|
C/S 1020
|
C/S 1020
|
C/S 1020
|
C/S 1020
|
C/S 1020
|
|
39
|
BEARING
|
STEEL
|
STEEL
|
STEEL
|
STEEL
|
STEEL
|
STEEL
|
|
40
|
BONNET
CLAMP
|
C/S 1045
|
C/S 1045
|
C/S 1045
|
C/S 1045
|
C/S 1045
|
A240-304
|
|
41
|
WASHER
|
A479-410
|
A479-410
|
A479-410
|
A479-410
|
A479-410
|
A479-316
|
|
42
|
HINGE
CLAMP
|
A216-WCB
|
A216-WCB
|
A216-WCB
|
A216-WCB
|
A216-WCB
|
A351-CF8
|
|
43
|
GLAND
BOLT
|
A307-B
|
A307-B
|
A307-B
|
A307-B
|
A307-B
|
A193-B8
|
|
44
|
GLAND
CLAMP
BOLT
|
A307-B
|
A307-B
|
A307-B
|
A307-B
|
A307-B
|
A193-B8
|
|
45
|
GLAND
CLAMP
NUT
|
A307-B
|
A307-B
|
A307-B
|
A307-B
|
A307-B
|
A194-8
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
