Title:
TEMPERATURE RESPONSIBLE VALVE
Document Type and Number:
Japanese Patent JPS56120869
Kind Code:
A
Abstract:
A temperature responsive drain valve (10) is disclosed for draining fluid lines (12) to prevent freeze up damage. The valve includes a housing (14) having a fluid passageway (15) therethrough. A temperature responsive thermal actuator (20) is mounted to the housing adjacent fluid inlet passageways (34). The actuator includes a temperature sensitive portion (22,23), which extends exteriorly of the valve housing and an output member which extends into the fluid passageway. A poppet valve member (42) has a self-aligning valve surface (46) and is mounted in the fluid passageway and biased toward a valve seat by a conical spring (47) which extends over a cylindrical portion (43) of the valve member. Cylindrical portion (43) is also guided by and extends through an opening (49) in a reaction plate (48). An outer biasing spring (51) reacts against the output member through a cage arrangement (54, 58, 67). A flexible bead chain (62) is connected between valve member (42) and the cage arrangement and functions as a lost motion connection, thereby allowing the output member of the thermal actuator to move outwardly toward the poppet valve member without overloading the valve member and thermal actuator.
More Like This:
Inventors:
ROBAATO AREN RAISU
Application Number:
JP1147681A
Publication Date:
September 22, 1981
Filing Date:
January 28, 1981
Export Citation:
Assignee:
EATON CORP
International Classes:
F16K31/68; G05D23/02; (IPC1-7): F16K17/38
Domestic Patent References:
JPS5013931A | 1975-02-13 |