15
1/2”
95
65
4 x 14
20
3/4”
105
75
4 x 14
25
1”
115
85
4 x 14
40
1 1/2”
150
110
4 x 18
50
2”
165
125
4 x 18
65
2 1/2”
185
145
4 x 18
80
3”
200
160
8 x 18
100
4”
220
180
8 x 18
150*
6”
279
241
8 x 22
15
1/2”
89
60.3
4 x 16
20
3/4”
98
70.0
4 x 16
25
1”
108
79.5
4 x 16
40
1 1/2”
127
98.5
4 x 16
50
2”
152
120.5
4 x 19
65
2 1/2”
185
145.0
4 x 19
80
3”
190
152.5
4 x 19
100
4”
229
190.5
8 x 19
-
6”
279
241.0
8 x 22
15
1/2”
95
70
4 x 15
20
3/4”
100
75
4 x 15
25
1”
125
90
4 x 19
40
1 1/2”
140
105
4 x 19
50
2”
155
120
4 x 19
65
2 1/2”
175
140
4 x 19
80
3”
185
150
8 x 19
100
4”
210
175
8 x 19
-
6”
279
241
8 x 22
SNB-SNC ball valves
Installation and Maintenance Instructions
Emerson reserves the right to change the contents without notice
page 4
6.5. Installation options
Ball valves can be equipped with various means of operation e.g. with hand lever, handwheel,
electrical, pneumatic or hydraulic drive, or with a drive linked to a position controller for SNC
control valves. The hand levers are supplied complete with a notched plate which allows the lever
to be latched either in the end positions only (version ZE) or in the end positions and additionally
in various intermediate positions (version Z). In addition, the hand lever can be provided with limit
switches which indicate ‘open’ or ‘closed’.
For installation in exposed places, shaft extensions in various lengths are available for all sizes.
6.6. Bolted joints in the pipeline
All flange bolts must be used, even on low-pressure systems. The specified tightening toques for
the bolts must always be adhered to.
6.7. Body variants
SNB and SNC ball valves have the same body dimensions. The face-to-face and mounting flange
dimensions of the ball valve bodies vary according to the various standards. When used as an end
of line valve, it must be secured in such a way that access to the isolating valve is restricted when
in service.
It should also be noted that when a valve is used as the end valve of a pressurized system, the
flange must be removed from the valve.
Dimensions
DN
D
Tk
n x d
mm
inches
mm mm mm
6.2. Dimensions of the mounting flanges for SNB-SNC ball and C valves DIN-PN16
* DN 150 ball valve only as ANSI 6” version available
Dimensions
DN
D
Tk
n x d
mm
inches
mm mm mm
6.3. Dimensions of the mounting flanges for SNB-SNC valves ANSI B 16.10 class 150 (lbs)
Dimensions
DN
D
Tk
n x d
mm
inches
mm mm mm
6.4. Dimensions of the mounting flanges for SNB-SNC ball and C valves JIS-10K
* Ball valves DN 150 only as ANSI 6” version available
