FIELD: packing. SUBSTANCE: a plug cock 3 with union 5 fastened to its drain channel is mounted at the outlet of metering cylinder 1 with piston 2. Union 5 has annular step 6 and conical bush 7 with holes 8 which is positioned on the step. Rod 7 loaded by spring 9 is passed through the conical bush and has plug 11 on one end and flange 12 on the other. EFFECT: improved structure. 1 dwg
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Authors
Dates
1994-02-15—Published
1991-01-18—Filed