Spirax Sarco - Catalogo Agosto 2017

Pipeline ancillaries

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

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

TI-P133-85

ST Issue 1

M21Hi ISO

Reduced Bore Ball Valve

DN15 to DN150 Flanged PN40

Description

The M21Hi is a reduced bore ball valve, with a single piece body,

having ISO mounting as standard. As a main feature the valve has

a special ball which has received a surface hardening and also

benefits from having reinforced PEEK seats.

The M21Hi can be used on applications that use steam and other

industrial fluids for services ranging from vacuum to the higher

temperatures and pressures. The M21Hi has been designed for

use as an isolating valve, not a control valve.

Available types

M21Hi2 ISO Zinc plated carbon steel body, reinforced PEEK seats.

M21Hi3 ISO Stainless steel body, reinforced PEEK seats.

Standards

This product fully complies with the requirements of the

European Pressure Equipment Directive 97 / 23 / EC and carries

the mark when so required.

Certification

This product is available with certification to EN 10204 3.1.

Note: All certification/inspection requirements must be stated

at the time of order placement.

Pressure / temperature limits

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periods of time.

Sizes and pipe connections

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

and DN150

Standard flange: EN 1092 PN40

Face-to-face dimensions:

-

DN15 to DN100 according to DIN 3202 F4.

-

DN25 to DN150 according to BS 2080.

DN15 to DN50

Steam

saturation

curve

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Pressure bar g

The product must not be used in this region.

The product can only be used in this region for short

DN65

Body design conditions

PMA Maximum allowable pressure

TMA Maximum allowable temperature

Minimum allowable temperature

PMO

Maximum operating pressure

for saturated steam service

TMO Maximum operating temperature

Minimum operating temperature

PN40

40 bar g @ 120°C

310°C @ 0 bar g

-29°C

32 bar g

260°C @ 0 bar g

-29°C

Note: For lower operating temperatures consult Spirax Sarco

PMX Maximum differential pressure is limited to the PMO

Designed for a maximum cold hydraulic test pressure of 60 bar g

Technical data

Flow characteristic

Port

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

Antistatic device

Complies with ISO 7121 and BS 5351

Modified linear

Reduced bore

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