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Specification of

Specifications

TA Luft/VDI 2440:

Masoneilan control valves

fitted with Supagraf

Control are certified to TA

Luft requirements at leak

tightness with helium to

<10-4mbar.litre.s-1.m-1.

The tests were undertaken

with 10MPa at 20°C and

5.7MPa at a fluid flow

temperature of 425°C

for 100,000 stem cycles,

including four thermal cycles

and two gland adjustments.

ISO 15848-1: Masoneilan

control valves fitted with

Supagraf Control are

certified to ISO 15848-1

Class BH, CC3, at -29°C

to +425°C. The valves showed helium

leakage rates less than 10-4mg.s-1.m-1 for

100,000 stem cycles. This was achieved

with pressure of 5.75MPa at a fluid flow

temperature of +425°C and 10.34MPa at

-29°C to +38°C.

Prime features

l High integrity gland sealing for

control valve stems: to well below

50ppmV fugitive emission level.

l Long-term adjustment free operation:

over 100,000 stem strokes possible

with emission levels below 50ppmV.

l Very low coefficient of friction for

smooth and accurate valve action.

l Reduced friction requirement to save

on power consumption and enable

smaller actuators to be used.

l Certificated by TUV-Nord to TA Luft/

VDI 2440.

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