Pipeline ancillaries Ball valves
10
Kv values DN
15
20
25
32
40
50
65
80
100
150
Kv
10
10
30
40
81
103
197
248
581
735
For conversion Cv (UK) = Kv x 0.963 Cv (US) = Kv x 1.156
Operating torque (N m) DN 15 20
25
32
40
50
65
80
100
150
N m
15
15
20
25
35
60
100
120
170
400
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.
Safety information, installation and maintenance For full details see the Installation and Maintenance Instructions supplied with the product.
How to order
2 = Zinc plated carbon steel 3 = Stainless steel
Specify
Body material
Example: 1 off Spirax Sarco DN50 M21Hi2 ISO ball valve having flanged EN 1092 PN40 connections. Face-to-face according to BS 2080.
Optional extras: - Self-venting ball. - Extended stems to allow full insulation: 50 mm (2") for the DN15 to DN50 and 100 mm (4") for the DN15 to DN150. - Lockable handle. - 100 mm extended stem with lockable handle.
7.3.191
10.3 194
TI-P133-85 CMGT Issue 3
Page 8 of 9
M21Hi ISO Reduced Bore Ball Valve
Powered by FlippingBook