Lift Check Valves

Lift check valve is design and manufactured according to GB12236 standard. The valve disc lift around the center finding. Bush is made of special materials having excellent wear resistance and low frictional coefficient. Lift check vale is widely utilized for pipe lines in petroleum, chemical engineering, power and other industries.

 

Characteristics 

Test Pressure	Nominal Pressure(MPa)
	1.6	2.5	4.0	6.4	10.0
Shell Test	2.4	3.8	6.0	9.6	15.0
Seal Test	1.8	2.8	4.4	7.1	11.0
Materials	WCB(C)	CF8(P)	CF 8M (R)	WC6	WC9
Working Temperature	≤ 425	≤ 100	≤ 100	≤ 550	≤ 550
Applicable Temperature	Water,vapour, oil	Nitrose	Acetic acids	Water,vapour	Water, vapour

Standards

Manufacturing: GB12236   Face to Face: GB12221     Flange: JB/T79-1994    Test & Inspection: JB/T9092-1999

Main Dimensions

Nominal Diameter	PN1.6/2.5MPa			PN4.0MPa			PN6.4/10.0MPa
	L		H	L		H	L	H
	Series 1	Series 2		Series 1	Series 2
DN40	200	200	130	200	200	130	260	160
DN50	230	230	135	230	230	135	300	170
DN65	290	290	145	290	290	145	340	180
DN80	310	310	175	310	310	175	380	245
DN100	350	350	200	350	350	200	430	290
DN125	400	400	255	400	400	255	500	320
DN150	480	480	320	480	480	320	550	360
DN200	495	550	380	533	550	380	650	430
DN250	622	650	440	622	650	440	775	505
DN300	698	750	480	711	750	520	900	555
DN350	787	850	530	838	850	540	1025	595
DN400	864	950	560	864	950	590	1150	680
DN450	978	1050	620	978	1050	650	1275	780
DN500	978	1150	655	978	1150	720	1400	970