JPS59115254U

JPS59115254U - Water drain valve for water heater

Info

Publication number: JPS59115254U
Application number: JP813583U
Authority: JP
Inventors: 明彦安田; 久木　治男
Original assignee: 株式会社ハ−マン
Priority date: 1983-01-22
Filing date: 1983-01-22
Publication date: 1984-08-03

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

第１図は従来の湯沸器の水抜装置の一例を示す正面図、
第２図はこの考案の水抜栓を用いた湯沸器の正面図、第
３図、第４図はこの考案の水抜栓の各状態を示す拡大縦
断正面図である。１１・・・湯沸器、１２．１６・・・給水管、１３・・
・給湯管、１５・・・弁本体、１７・・・水入口、１８
・・・給水口、２０・・・連通口、２１・・・空気口、
２２・・・排水口、２３・・・弁体、２６・・・水圧バ
ランス用の連通孔、２７・・・駆動手段。Figure 1 is a front view showing an example of a water draining device for a conventional water heater;
FIG. 2 is a front view of a water heater using the drain plug of this invention, and FIGS. 3 and 4 are enlarged longitudinal sectional front views showing various states of the drain plug of this invention. 11...Water boiler, 12.16...Water pipe, 13...
・Hot water pipe, 15...Valve body, 17...Water inlet, 18
...Water supply port, 20...Communication port, 21...Air port,
22... Drain port, 23... Valve body, 26... Communication hole for water pressure balance, 27... Drive means.

Claims

[Scope of Claim for Utility Model Registration] 1. In a water heater that requires a water stop valve, a water drain valve, and an air suction column for draining water, the water inlet communicating with the water supply pipe from the water supply and the water supply of the water heater A cylindrical valve body that has a water supply port that communicates with the pipe, a communication port that communicates with the hot water supply pipe of the water heater, an air port that takes in outside air, and a discharge port that discharges the water in the water heater. At times, the water inlet and water supply port are communicated with each other, and the water inlet, water supply port, and communication port are blocked from the air port and drain port, and when reversing, the water inlet is blocked from the water supply port, and the communication port and the water supply port are A water drain valve for a water heater, which is fitted with a valve body that can move forward and backward to communicate with an air port and a drain port, and is provided with an appropriate driving means for moving the valve body forward and backward. 2. The drain valve for a water heater according to claim 1, wherein the valve body is provided with a communication hole for water pressure balance to cancel the axial thrust applied to the valve body by water pressure. 3. The drain plug for a water heater according to claim 1 or 2, wherein the driving means is a manual type. 4. The drain valve for a water heater according to claim 1 or 2, wherein the driving means is an electrically driven type that is started and stopped by a manual switch. 5. The drain faucet for a water heater according to claim 1 or 2, wherein the driving means is an automatic system that detects either or both of the water temperature and the air temperature and starts and stops in response to this signal.