JPH01124475U

JPH01124475U -

Info

Publication number: JPH01124475U
Application number: JP1972388U
Authority: JP
Priority date: 1988-02-17
Filing date: 1988-02-17
Publication date: 1989-08-24

Description

[Brief explanation of the drawing]

第１図、第２図は本考案の実施例を示す縦断面
図であり、第３図は従来例を示す断面図である。１，６…弁体、２，７…シートリング、３，８
…弁箱、３１，８１…接続口、３２，８２…抵抗
加熱線、３３，８３…コネクターピン。 1 and 2 are longitudinal sectional views showing an embodiment of the present invention, and FIG. 3 is a sectional view showing a conventional example. 1, 6... Valve body, 2, 7... Seat ring, 3, 8
...Valve box, 31,81...Connection port, 32,82...Resistance heating wire, 33,83...Connector pin.

Claims

[Scope of Claim for Utility Model Registration] (1) A valve box made of synthetic resin consisting of a valve body enclosing part and connection ports with pipes provided on both sides of the valve body, and a valve body in the valve body enclosing part of the valve box. A valve body that is rotatably supported by the inner surface of the holding part in a sealed state and communicates with or shuts off the connection port by rotation, and a resistor embedded in the shape of a winding in the inner surface of the connection port of the valve box. It consists of a heating wire,
At least 1 of the inner diameter of the connection port from the sealing part between the valve body and the inner surface of the valve body holding part to the winding part of the resistance heating wire.
A synthetic resin valve characterized by being separated by /3 or more. (2) A synthetic resin valve box consisting of a valve body holding part and a connection port with a pipe line provided on both sides of the valve body, a seat packing installed in the valve body holding part of the valve box, and the seat packing. a spherical valve body rotatably attached to the inner surface of the valve body and communicating with the connection port to form a flow path;
It consists of a resistance heating wire embedded in the inner surface of the connection port of the valve box in the shape of a winding, and the distance from the seal between the seat packing and the spherical valve body to the winding portion of the resistance heating wire is at least the inner diameter of the connection port. A synthetic resin valve characterized by being separated by 1/3 or more. (3) A synthetic resin valve box consisting of a valve body holding part and connection ports with pipes provided on both sides of the valve body, a seat packing installed inside the valve body holding part of the valve case, and a seat packing of the seat packing. a disc-shaped valve body rotatably mounted on the inner surface and communicating with or blocking the connection port by rotation; and a resistance heating wire embedded in the shape of a winding on the inner surface of the connection port of the valve box. A synthetic resin valve comprising: a sealing portion between the seat packing and the valve body and a winding portion of the resistance heating wire at a distance of at least 1/3 or more of the inner diameter of the connection port.