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該閥用于生活供水和消防供水并聯供水系統中，正常情況供生活用水，當火災發生時消防用水時，閥門自動關閉生活用水，確保足夠的消防用水。當消防停止用水時壓力減少，閥門自動恢復生活用水，該閥使系統無須另設專門的消防單獨供水管網，大大地節省了工程建設成本和日常的用水量。該閥控制靈敏、安全可靠、調試簡單、使用壽命長。

Used in the living and fire-fighting merged water supply system It supplies living water at normal condition and．in case of a fire，automatically close the living water and open the fire-fighting one to make it surely enough，and then when fire-fighting water stops and the pressure is reduced，resets the living wa-ter automatically．Thus making the system no need to set an individual fire-fighting water supply pipe network and both engineering construction cost and daily water used quantity greatly saved.It features sensitive control,safety,reliability,simple debugging and long duration

主要外形及連接尺寸 Schematic diagram of installation

公稱通徑 DN(mm)		20	25	32	40	50	65	80	100	125	150	200	250	300	350	400	450	500	600	700	800
L		180	180	180	203	203	216	241	292	330	356	495	622	698	787	914	978	978	1295	1446	1956
PN10	D	105	115	135	145	160	180	195	215	245	280	335	390	440	500	565	615	670	780	895	1010
PN10	D1	75	85	100	110	125	145	160	180	210	240	295	350	400	460	515	565	620	725	840	950
PN16	D	105	115	135	145	160	180	195	215	245	280	335	405	460	520	580	640	705	840	910	1020
PN16	D1	75	85	100	110	125	145	160	180	210	240	295	355	410	470	525	585	650	770	840	950
PN25	D	105	110	135	145	160	180	195	230	270	300	360	425	485	550	610	660	730	840	955	1070
PN25	D1	75	85	100	110	125	145	160	190	220	250	310	370	430	490	550	600	660	770	875	990
H		342	342	342	395	395	405	430	510	560	585	675	730	760	840	910	1030	1135	1270	1460	1640
H1		247	247	247	278	278	298	313	350	365	420	450	470	490	526	570	610	665	725	865	975

注：安裝示意圖中彈性座封閘閥或蝶閥任選，建議≥ DN350選蝶閥。
Note：Either elastic seat ring sealed gate valve or butterfly valve can be selected in the schematic diagram of installation.Recomended to select the butterfly valve in case of≥DN350.

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