Product Handbook 2026 - Volume 2

Pipeline ancillaries Ball valves

10

Kv values DN 50

Operating torque (N m) DN 50 65 80

100 150 200

65

80

100 150 200

Nm (lbf ft)

75 (55)

120 (89)

190 (140)

250 (184)

720 (531)

1150 (848)

Kv

300 430 750 1030 2 410 4 800

For conversion: Cv (UK) = Kv x 0.963 Cv (US) = Kv x 1.156

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.

How to order

Size

DN50, DN65, DN80, DN100, DN150, DN200

Model

M33F_ISO

Specify:

2 = Carbon steel 3 = Stainless steel

Body material

Example: 1 off Spirax Sarco DN50 flanged ANSI 150 M33F2 ISO ball valve

Flanges

ANSI 150 or ANSI 300

Spare parts The spare parts available are shown in solid outline. Parts drawn in a grey line are not supplied as spares. Available spares Seats, body gasket, steam seals, stem 'O' ring and seat 'O' ring set 4, 5, 7, 8, 9, 29

7.3.153

How to order spares Always order spares by using the description given in the column headed 'Available spares' and state the size and type of ball valve. Example: 1 - Seats, body gasket, stems seals and stem 'O' ring set for a Spirax Sarco DN80 flanged ANSI M33F2 ISO ball valve

8 7

10.3 142

9

29

5

4

29

4

TI-P133-64 CMGT Issue 5

Page 6 of 6

M33F ISO Full Bore Ball Valve API 6D - Firesafe API 607 DN50 to DN200 ANSI 150 and ANSI 300

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