TA-Luft Fugitive Emission

TA-Luft Approved

Fugitive Emission Certified

JV-2FB

JV-2FH

JV-9300W (Full Bore)

TA Luft (Fugitive Emission) Approval ISO-5211 Top Flange, Anti-Static Device, Lever-Operator, Threaded Ends

Graphite Gasket & Stempacking, Belleville Disc for better lock-in position

WHAT DOES TA-LUFT CALL FOR?

The TA-Luft sets maximum permissible limits for the emission of dust, vapours or gases when

processing, conveying, or transferring dusty, liquid or gaseous materials, taking into account

the specific risk potential. For ball valves, initial maximum leakage rates of 0.03 g/h are

permitted for high-risk materials; this value takes into account the normal limits for leakage

from static seals (e.g. flange connections). This figure means that the maximum emission

rate of helium (He) is 4.99 x 10^-2cm³/s. This is seen as equivalent to sealing a valve stem

by means of a bellows with safety gland seals in series. In some cases today, more severe

requirements must be met, and maximum emission rates of 10^-6 cm³/s are demanded.

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