厂家直销优质LH45X-16微阻限流止回阀球墨铸铁止回阀规格齐产品展示-厂家直销优质LH45X-16微阻限流止回阀球墨铸铁止回阀规格齐资料-厂家直销优质LH45X-16微阻限流止回阀球墨铸铁止回阀规格齐招商信息-

产品介绍

一、结构及用途 structure and purpose

该阀用于水泵出口控制水泵的实际工作扬程 ,以限制水泵的工作流量,限制水泵电机负载,使水泵在较高效率状态下工作,防止水泵电机在低扬程、大流量、低效率时发生过载现象，防止超额定电流烧坏水泵电机现象发生，同时起到一定节能效果。安装、维护、调试、检查方便，使用寿命长，同时具有缓闭清声止回阀功能。

This valve is used at a water pump＇s outlet to control the real working head of the pump so as to limit the working flow and the motor＇s load of it，make the pump working in a higher efficiency, prevent the motor from being overloaded in case if a low head，a big flow or a low efficiency and from being burnt due to an extra-rated cu r rent，with a certain energy saving effect Easy installation，maintenance，adjustment and check，long duration and of the function to be a slowly closed silencing check valve.

四、主要外形及连接尺寸 Schematic diagram of installation

公称通径 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	1448	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	480	490	550	600	660	770	875	990
H		172	172	172	265	265	310	350	460	520	570	695	780	905	1025	1080	1030	1135	1270	1460	1640
H1		106	106	106	210	210	215	245	305	365	415	510	560	658	696	735	610	665	725	865	925

注：安装示意图中弹性座封闸阀或蝶阀任选，建议≥ DN350选蝶阀。

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