Dear colleagues,
I am writing to ask if anyone would recommend any particular needle
valve/leak valve that they have used. I need to purchase several and price
is a factor. In particular, I wonder if anyone knows of a needle valve
that can control flows down to say 10e-4 mbar l/s which costs less than
about 800 euro / $ 1000 / 600 pounds. Meggitt Avionics in the UK used to
make one for about half this price, but seem to have stopped recently. The
swagelock valves seem to be too coarse, but maybe I am not aware of the
full range they make. The best I have seen so far is from Leybold (part
215010).
Any suggestions gratefully received,
Tom Field
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Dr Tom Field [log in to unmask]
Department of Pure and Applied Physics,
Queen's University Belfast, tel 02890 975349 (office)
University Road, 02890 973735 (lab)
Belfast, fax 02890 310785
BT7 1NN, (+44 2890 - international code)
U.K.
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