Pipeline ancillaries

Local regulations may restrict the use of this product to below the conditions quoted.

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In the interests of development and improvement of the product, we reserve the right to change the specification without notice. © Copyright 2016

TI-P133-77

ST Issue 4

M21Si ISO and M21Vi ISO

Reduced Bore Ball Valves

DN15 to DN150 Flanged PN40

Description

Both the M21Si and M21Vi are reduced bore ball valves, with a

single piece body, having ISO mounting as standard. They are

designed to be isolating valves, which can be used with the

majority of industrial fluids, not control valves.

Available types

DN15 to DN50

M21Si2 ISO

M21Si3 ISO

M21Vi2 ISO

M21Vi3 ISO

Standards

Zinc plated carbon steel body, PDR 0.8 seats.

Stainless steel body, PDR 0.8 seats.

Zinc plated carbon steel body, PTFE seats.

Stainless steel body, PTFE seats.

These products fully comply with the requirements of the European

Pressure Equipment Directive 97 / 23 / EC and carry the

mark

when so required.

Certification

These product are available with certification to EN 10204 3.1.

Note: All certification / inspection requirements must be stated at

the time of order placement.

Sizes and pipe connections

DN15, DN20, DN25, DN32, DN40, DN50, DN65, DN80, DN100

and DN150

Standard flange: EN 1092 PN40

Face-to-face dimensions:

DN65

-

DN15 to DN100 according to DIN 3202 F4.

-

DN25 to DN150 according to BS 2080.

Technical data

Flow characteristic

Port

Modified linear

Reduced bore

Leakage test procedure to ISO 5208 (Rate A) / EN 12266-1 (Rate A)

Antistatic device

Complies with ISO 7121 and BS 5351

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