Pipeline ancillaries Ball valves
10
Kv values DN
50
65
80
100
150
200
Kv
300
430
750
1030
2 410
4 800
For conversion: Cv (UK) = Kv x 0.963 Cv (US) = Kv x 1.156
Operating torque DN 50 (2")
65 (2½")
80 (3")
100 (4")
150 (5")
200 (6")
N m
75
120
190
250
720
1150
ft lbf
55
89
140
184
531
848
The torque figures shown are for a valve at maximum operating pressure that is operated frequently. Valves that are subject to long static periods, may require greater break-out torque.
Safety information, installation and maintenance For full details see the Installation and Maintenance Instructions supplied with the product. Welding: Only the models that have connections designed for welding (SW, BW, Imperial Tube connections) should be welded. Carbon steel valves with flanged connections must not be welded to avoid damages to the valve and/or injury to personnel.
How to order
Size
DN50, DN65, DN80, DN100, DN150, DN200 (2", 2½", 3", 4", 6" and 8").
Model
M33S_ISO
Specify:
2 = Carbon steel 3 = Stainless steel
Body material
Flanges
ANSI 150 or ANSI 300
Example: 1 off Spirax Sarco DN50 flanged ANSI 150 M33S2 ISO ball valve.
10.3 134
TI-P133-63 CMGT Issue 4
Page 6 of 7
M33S ISO Full Bore Ball Valve API 6D DN50 (2") to DN200 (8") Flanged ASME 150 and ASME 300
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