Title:
PORTABLE FLOW CONTROL DRAIN VALVE
Document Type and Number:
WIPO Patent Application WO/2022/165987
Kind Code:
A1
Abstract:
A portable flow control drain valve, comprising a bent connecting pipe (1) led out from a heat exchanger housing, wherein a discharge port of the bent connecting pipe (1) faces downwards and is connected to a straight connecting pipe (2), a locking screw sleeve (3) is sleeved outside the straight connecting pipe (2), and a drain valve assembly (4) is connected below the straight connecting pipe (2) and the locking screw sleeve (3); and the drain valve assembly (4) comprises a valve body (41), a rotary valve core (42) mounted in the valve body (41), and a handle (43) for driving the rotary valve core (42) to rotate. The rotary valve core is provided in the drain valve assembly of the drain valve, and by rotating the rotary valve core with the handle, the rotary valve core can be adjusted to a closed state, a liquid discharge state and a gas discharge state, so as to respectively satisfy different requirements of sealing, liquid discharging and gas discharging.
Inventors:
WANG JIE (CN)
WANG WANGYANG (CN)
LI XIANTAI (CN)
YU TIANXIANG (CN)
DAI YITUO (CN)
WANG WANGYANG (CN)
LI XIANTAI (CN)
YU TIANXIANG (CN)
DAI YITUO (CN)
Application Number:
PCT/CN2021/086879
Publication Date:
August 11, 2022
Filing Date:
April 13, 2021
Export Citation:
Assignee:
ZHEJIANG ERG TECH JOINT STOCK CO LTD (CN)
International Classes:
F16K5/12; F16K5/06; F16K5/08; F16K27/06
Foreign References:
| CN201696653U | 2011-01-05 | |||
| EP3636970A1 | 2020-04-15 | |||
| CN212004343U | 2020-11-24 | |||
| CN202659954U | 2013-01-09 | |||
| US20150167660A1 | 2015-06-18 | |||
| CN108708977A | 2018-10-26 | |||
| CN200949678Y | 2007-09-19 |
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