CV500 Valve
Instruction Manual
Form 5302
July 2006
3
Table 2. Maximum Allowable Shutoff Pressure Drops
(3)
VALVE BODY
MATERIAL
BEARING
MATERIAL
TEMPERATURE
VALVE SIZE
3
4
6
8
10
12
_
C
Bar
WCC steel
S44004
(440C SST)
−29 to 149
41.4
41.4
41.4
24.1
24.1
27.6
149 to 204
41.4
41.4
41.4
23.8
24.1
27.6
204 to 316
41.4
41.4
41.4
23.1
24.1
27.6
WCC steel, EN 1.0619
steel, CF8M (316 SST),
EN 1.4581 SST, or
CF3M
(4)
(316L SST)
R30006
(Alloy 6)
−46
(1)
to 204
41.4
41.4
20.7
15.1
24.1
27.6
204 to 260
41.4
41.4
20.7
15.1
24.1
27.6
260 to 316
41.4
41.4
20.7
15.1
24.1
27.6
PTFE/composition-
lined S31603
(2)(4)
(S316L SST)
−46
(1)
to 93
41.4
41.4
41.4
24.1
31
34.5
93 to 149
41.4
41.4
41.4
24.1
(5)
31
34.5
23.1
(6)
149 to 204
41.4
41.4
41.4
23.8
(5)
31
34.5
22.1
(6)
204 to 260
(2)
41.4
41.4
41.4
23.4
(5)
31
34.5
21.7
(6)
_
F
Psi
WCC steel
S44004
(440C SST)
−20 to 300
600
600
600
350
350
400
300 to 400
600
600
600
345
350
400
400 to 600
600
600
600
335
350
400
WCC steel, EN 1.0619
steel, CF8M (316 SST),
EN 1.4581 SST, or
CF3M
(4)
(316L SST)
R30006
(Alloy 6)
−50
(1)
to 400
600
600
300
220
350
400
400 to 500
600
600
300
220
350
400
500 to 600
600
600
300
220
350
400
PTFE/composition-
lined S31603
(2)(4)
(S316L SST)
−50
(1)
to 200
600
600
600
350
450
500
200 to 300
600
600
600
350
(5)
450
500
335
(6)
300 to 400
600
600
600
345
(5)
450
500
320
(6)
400 to 500
(2)
600
600
600
340
(5)
450
500
315
(6)
1. −29
_
C (−20
_
F) for WCC steel valve body material.
2. For hot water or steam service, limit maximum temperature to 260
_
C (500
_
F).
3. The pressure or temperature limits in this table or in any applicable code limitation, should not be exceeded.
4. Standard Fisher material offerings in Europe only.
5. S17400 (17-4PH SST) shaft only.
6. ASME SA-479 Grade SM-19 stainless steel shaft only. Pressure drops appropriate for both shaft materials.
Installation
WARNING
Always wear protective gloves,
clothing, and eyewear when
performing any installation operations
to avoid personal injury.
Personal injury or equipment damage
caused by sudden release of pressure
can result if the valve assembly is
installed where service conditions
could exceed the pressure drop limits
given in table 2 or the valve rating. To
avoid such injury or property damage,
provide a relief valve for overpressure
protection as required by government
or accepted industry codes and good
engineering practices.
Check with your process or safety
engineer for any additional measures
that must be taken to protect against
process media.
If installing into an existing
application, also refer to the WARNING
at the beginning of the Maintenance
section in this instruction manual.
WARNING
When ordered, the valve configuration
and construction materials were
selected to meet particular pressure,
pressure drop, temperature, and
controlled fluid conditions.