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    1. Archive

    Miniature Cartridge Needle Valve

    Feb. 22, 2007
    A cartridge needle valve with 56-threads/inch adjustment and 3° taper of the needle precisely controls flows from 0 to 1 SCFM at 50 psig.

    And flow remains stable even during temperature fluctuations as the needle and valve seat are both stainless steel. Maximum inlet pressure is 300 psig. A metal-to-metal seal provides positive shut-off down to negative pressure/vacuum of 25-in. Hg. Installation height is <1 in. Inlet/installation thread is a 10-32 external thread with an O-ring face seal for leaktight connections. A variety of elastomeric seals resist corrosion and heat, and work with most fluids.

    Beswick Engineering Co. Inc.,
    284 Ocean Rd., Greenland, NH 03840,
    (603) 433-1188,
    beswick.com

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