Data Sheet

A31A Cryogenic Valve
Product Bulletin
21.1:Cryogenic-Rotary
October 2010
9
Table 5. Dimensions, Wafer Style valves, CL300, NPS 3 through 6
VALVE
SIZE,
NPS
A D E F F1 G J K M
(2)
R
(1)
S T U V
FLAT
LENGTH
FLAT
SIZE
mm
3 48 87 83 10 19 79 146 375 71 133 16 152 32 117 25 11
4 54 113 83 22 25 95 178 451 94 171 19 152 32 117 25 14
6 57 164 83 41 48 127 248 489 146 219 25 152 32 117 25 17
Inches
3 1.88 3.44 3.25 0.375 0.75 3.13 5.75 14.75 2.81 5.25 0.625 6.0 1.25 4.63 1.0 0.436
4 2.13 4.44 3.25 0.875 1.0 3.75 7.0 17.75 3.69 6.75 0.75 6.0 1.25 4.63 1.0 0.561
6 2.25 6.44 3.25 1.63 1.88 5.0 9.75 19.25 5.75 8.63 1 6.0 1.25 4.63 1.0 0.687
1. Face-to-face dimensions are in compliance with MSS SP68 and API 609 specifications.
2. Minimum I.D. is the minimum pipe or flange I.D. required for disc swing clearance.
16B4212 / DOC
mm (INCHES)
CLOCKWISE TO CLOSE
TYPICAL VALVE MOUNTING
FLAT
LENGTH
FLAT SIZE
VENT
(SUPPLIED
PER
REQUEST)
DISC
SHOWN IN
FULL OPEN
POSITION
M MIN I.D. REQUIRED
FOR DISC SWING
CLEARANCE
D
PORT
DIAMETER
F
F1
FLOW
VALVE BODY
T
U
V
A
6 HOLES
O 0.56
THROUGH
O S
O J
O R
K
E
G
102 [4.00]
Figure 8. Dimensions, Wafer Style valves, CL300, NPS 3 through 6 (also see table 5)