Channel valve with sealed slider boring - has slide bar with layers of corrosion-resistant zinc at either end

摘要

The channel valve (10) has a slider boring (11). The housing (13) also contains several chambers (12) connected together. The boring (11) tightly holds a slide bar (14), sealed, yet free to slide along. Two annular tee-slots (15, 16) divide the valve up into a first end section (17), a middle, piston section (18) and a seond end suction (19), all piston-shaped and having the same outer diameter. The first section (17) projects but of the housing (13) and is sealed by an O-ring (21). This section (17) includes two sectors having a corrosion resistant layer of zink (23.24). The second section (19) has a sector (26) also with a protective layer of zink. A seal O-ring (28) is provided at this end.