INTEGRATED STOP VALVE

WIPO Patent Application WO/2016/169252

A1

An integrated stop valve, comprising a valve body (1), wherein a valve seat (2) is arranged at the center in the valve body (1), the valve seat (2) is provided with a valve clack (3) in a matching manner, the upper end of the valve clack (3) is connected to a valve rod (4), the valve rod (4) is provided with a packing box (5) in a penetrating manner, a cavity fitted with the lower end of the packing box (5) is arranged at the center of the upper side of the valve body (1), the lower end of the packing box (5) is arranged in the cavity arranged at the center of the upper side of the valve body (1) in the matching manner and is in sealing connection with the cavity, packing (6) is arranged in the packing box (5) and is pressed through a packing gland (7), the valve rod above the packing gland (7) is connected to a nut seat (12) in a threaded manner, the nut seat (12) is connected to the valve body (1) through upright posts (13) in a fastening manner, and the upper end of the valve rod (4) is connected to a hand wheel (14). In the stop valve, a valve cover connected to the upper end of a valve body is omitted, and no leakage points exist, thereby increasing the sealing effect.

ZHOU WEI (CN)
ZHOU BAOMING (CN)
SHENG JUN (CN)

PCT/CN2015/094644

October 27, 2016

November 16, 2015

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NANTONG TIANYUAN VALVE MFG CO LTD (CN)

F16K1/00; F16K41/02

CN104776228A	2015-07-15
CN204553864U	2015-08-12
CN203641523U	2014-06-11
CN102072328A	2011-05-25
CN101033804A	2007-09-12
CN2784681Y	2006-05-31
CN1352360A	2002-06-05
CN2690680Y	2005-04-06
CN200982425Y	2007-11-28
CN202927063U	2013-05-08

CO-HORIZON INTELLECTUAL PROPERTY INC. (CN)
北京国昊天诚知识产权代理有限公司 (CN)

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