Pilot-operated directional control valve

Details Pilot-operated directional control valve Pilot-operated directional control valve

1998-09-30

1999-10-12

Michalsky, Gerald A.

Fluid handling

Convertible

Unit orientable in a single location between plural positions

13762564, F15B 13043

Patent

active

059642440

ABSTRACT:
A valve body of a main valve comprises a first and a second body portions, and grooves and shallow dents are formed in both body portions to form pilot fluid channels and a plug chamber in which a switching plug is accommodated. The switching plug that switches a directional control valve between the internal and external pilot types is accommodated in such a way that its axial direction can be changed by 180.degree..

REFERENCES:
patent: 2295111 (1942-09-01), Hemmings
patent: 5086803 (1992-02-01), Nakajima
patent: 5222715 (1993-06-01), Framberg
patent: 5487409 (1996-01-01), Stoll et al.
patent: 5615710 (1997-04-01), Sato

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