Style "CSS" Valve Assembly Features:

Style "CSS" Valve Assembly Features:
Sales Manual Section 170
Product Specification Style "CSS"
(for Control Valves)
Style "CSS"
Valve Assembly
Features:
•
•
•
•
Sizes 1/2", 3/4", 1"
Single-Seated (Teflon Seal)
Direct Acting, Reverse Acting
Stainless Steel Construction
General Description
These valves are especially suited where single-seated
construction and increased corrosion resistance is desired.
Valve stems of highly finished type 316 stainless steel
feature quick-disconnect valve stem construction which
permits removal of valve from the actuator without disturbing
valve stem stroke adjustment in the upperworks.
Stainless steel body and trim make this valve ideal for most
any process material and ambient conditions.
Specifications
Type: .................... Single Seated. Direct or Reverse Acting.
Sizes: ..............................................................1,1/2", 3/4", 1"
Materials:
Stem .................................................................... 316 SS
Plug .............................................. 316 SS w/Teflon Seal
Seat Ring ............................................................ 316 SS
Body: ........................................................... CF8M (316 SS)
Packing: ..................... Teflon Chevrons with 316 SS Spring
Ends: ......................................................... Female Threaded
Other Parts: ................................................... Stainless Steel
Maximum Leakage (Factory Test): 0.05% of rated flow at
50 psig ∆P (pressure drop) for Direct or Reverse Acting.
Maximum Pressure/Temperature: Press: 450 psig @ 100°F
Temp: 450°F @ 450 psig
Flow (Preliminary)
Size
End
Connection
Port
Size
Action
Max.
Pres.
Drop
1/2"
1/2" NPT
1/2"
DA
100 Psig
1/2"
1/2" NPT
1/2"
RA
100 Psig
3/4"
3/4" NPT
3/4"
DA
100 Psig
3/4"
3/4" NPT
3/4"
RA
100 Psig
1"
1" NPT
1"
DA
100 Psig
1"
1" NPT
1"
RA
100 Psig
1/2"
1/2" NPT
1/4"
DA
100 Psig
* Changes: Added Reduced Trim for D.A. and R.A.
Cv
2.3
23
7.3
7.3
9.5
9.5
.3 or .6
1
Max. Seat
Leakage @ 50
∆P
31 cc/min.
31 cc/min.
98 cc/min.
98 cc/min.
127 cc/min.
127 cc/min.
-
Flow
EQ%
EQ%
EQ%
EQ%
EQ%
EQ%
Lin.
Unbalanced
Area
(sq. in.)
.30
.23
.60
.52
.89
.81
.05
Travel
3/8"
3/8"
3/8"
3/8"
3/8"
3/8"
3/8"
TABLE 1
Nominal
Valve
Size
1/2"
1/2"
1/2"
3/4"
3/4"
1"
Port
Size
Seat
1/4"
1/4"
1/2"
1/2"
3/4"
1"
HARD
HARD
SOFT
SOFT
SOFT
SOFT
Water
Pressure
PSIG
50
50
50
50
50
50
Stem
Maximum
Hydrostatic
Cv
Force
Leakage
Test Pressure
Pounds
CC/Min.
PSIG
9 - 12
8
450
0.3
9 - 12
16
450
0.6
25 - 30
31
450
2.3
25 - 30
31
450
2.3
40 - 50
98
450
7.3
65 - 70
127
450
9.5
* Approximately 0.05% of Valve Capacity for soft seat valves.
Approximately 0.10% of Valve Capacity for hard seat valves.
DIMENSIONS:
Direct
TYPE
Direct
Reverse
A
4.0"
4.0"
B
3.616"
3.619"
Reverse
C
2.875"
2.875"
D
1.906"
1.906"
E
.375"
.375"
2
Q-4112 (10/01)
Printed in U.S.A.
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