Pipeline ancillaries Ball valves
10
Kv values DN
40
50
65
80
100
K v
81
103
197
248
581
For conversion Cv (UK) = Kv x 0.963 Cv (US) = Kv x 1.156
Operating torque (N m) DN 40
50 25
65 50
80 70
100
N m 100 Note: The torque figures shown are for a valve that is frequently operated at the maximum operating pressure. Valves that are subject to long static periods, may require a greater break-out torque. 20
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. Valves with flanged connections must not be welded to avoid damages to the soft parts.
How to order
Si = Carbon and graphite reinforced PTFE - PDR 0.8 Vi = Virgin PTFE
Model
Seat material
Body type
Specify
J = Jacketed body
2 = Carbon steel 3 = Stainless steel
Material
Body material
Example: 1 off Spirax Sarco DN50 M40ViJ2 ISO ball valve having flanged ASME 150 connections.
Optional extras: - Self-venting ball. - Extended stems to allow full insulation: 50 mm (2") for DN40 and DN50 sizes and 100 mm (4") for DN40 to DN100 sizes. - Lockable handle. - 100 mm extended stem with lockable handle.
10.3 273
TI-P133-100 CMGT Issue 2
Page 7 of 9
M40SiJ ISO and M40ViJ ISO Jacketed Reduced Bore Ball Valves DN40 to DN100 Flanged ASME 150
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