Pipeline ancillaries

HVB3aslltvoaplveaslve

7.4.17

Kv values

Size

1⁄4"

" 1⁄2" 3⁄4" 1" 11⁄4"11⁄2" 2" 21⁄2"

Reducedbore 2.5 6.8 6 10 27 49 70 103 168

Fullbore

2.5 6.8 17 36 58 89 153 205 -

For conversion: C (UK) = K x 0.963

C (US) = K x 1.156

How to order example:

1 off Spirax Sarco 1⁄2" screwed BSP M10Si2FB ISO ball valve.

Optional extras:

-

Self-venting ball.

-

Extended stems 50 mm (2") and 100 mm (4") to allow full insulation.

-

Oval handle for confined spaces. Ideal for trap modules.

Spare parts

The spare parts available are shown in solid outline. Parts drawn

in broken line are not supplied as spares.

v

v

v

v

Operating torque (N m)

Size

1⁄4"

" 1⁄2" 3⁄4" 1" 11⁄4"11⁄2" 2" 21⁄2"

Reduced bore 3.25 3.25 3.25 5.50 13.25 20 50 60 75

Full bore

3.25 3.25 5.50 13.25 20 50 60 75 -

The indicated torque values are for valves frequently operated,

that are submitted to a maximum differential pressure of 40 bar.

Valves that are subject to long static periods, may require greater

break-out torque.

Safety information, installation and maintenance

Available spares

Seat, seals and body gasket set

How to order spares

5, 6, 19, 22

For full details see the Installation and Maintenance Instructions

supplied with the product.

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 - Seat, seals and body gasket set for a Spirax Sarco

1⁄2" M10Si2FB ISO ball valve.

6

22

6

19

5

5

19

TI-P133-58 ST Issue 6

M10Si ISO Ball Valve DN1⁄4" to DN21⁄2"

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