Vorsteuerventilsitz, Vorsteuerventil und Umschaltventil

Details

Veröffentlichungs-Nr.

EP4752416

Anmeldetag

19. Juli 2024

Veröffentlichung

30. Januar 2025

Rechtsraum

EP

IPC

F16K27/04

Abstract

Provided in the present application are a pilot valve seat, a pilot valve and a reversing valve. The pilot valve seat comprises a valve seat body (100); the valve seat body (100) is provided with a plurality of pilot valve ports (101), which are used for connecting a capillary tube assembly; and the valve seat body (100) has an arc-shaped surface (102), the arc-shaped surface (102) being provided with an accommodating space arranged spaced apart from the pilot valve ports (101). When welded to a guide pipe (200) and the capillary tube assembly, the pilot valve seat is mounted in the guide pipe (200), the arc-shaped surface (102) of the valve seat body (100) is in contact with an inner wall of the guide pipe (200), and the capillary tube assembly is inserted into the corresponding pilot valve ports (101). Since the accommodating space is arranged spaced apart from the pilot valve ports (101), the installation of the capillary tube assembly is not affected; and solder is added to an outer surface of the guide pipe (200) and an outer surface of the capillary tube assembly for welding. During the welding process, the solder flows into the accommodating space of the valve seat body (100), such that the possibility of the solder flowing out of the range of the pilot valve seat to form overlapping is reduced, the hidden danger of flow welding is reduced, and it is ensured that the distance between a pipe opening of the guide pipe (200) and the pilot valve seat meets the requirement for positioning.

Anmelder

Firma

Zhejiang Dunan Artificial Environment Co., Ltd.

Land

🇨🇳 China

Fachgebiete