LIFT CHECK VALVE H41H

group name: Check Valve

Min Order: 1 piece

brand name: KRV

model: DN15-DN200

Nearest port for product export: Tianjin, Shanghai, Qingdao, Dalian

Delivery clauses under the trade mode: FOB, CFR, CIF, EXW

Acceptable payment methods: T/T, L/C, Credit Card, Westem Union, Cash

update time: Thu, 13 May 2021 16:55:06 GMT

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Packging & Delivery

Min Order1 piece

Briefing

Lift check valve means to rely on the flow of the medium itself automatically open, close the valve

Detailed

Lifting check valve refers to the valve that automatically opens and closes the disc depending on the flow of the medium itself to prevent medium backflow, also known as check valve, one-way valve, counterflow valve, and back pressure valve. Check valve is an automatic valve. Its main function is to prevent medium backflow, reverse pump and drive motor, and release of container medium. Check valves can also be used in pipelines to supply auxiliary systems where pressure may rise above system pressure. Check valves can be divided into swing check valves (rotating according to the center of gravity) and lift check valves (moving along the axis).

Technical data

PN(MPa)Nominal pressure		1.6	2.5	4.0
(MPa)Test pressure	Shell strength test	2.4	3.75	6.0
	Seal test (Liquid)	1.76	2.75	4.4
	Seal test (Gas)	0.5~0.7
Suitable medium		water,steam,oil	PNiter acids	Roil
Suitable temperature		≤425	≤100	≤550

Meterial of main parts

No.	Part name	Meterial
No.	Part name	ASTM	GB
1	Valve body	WCB, WC1,WC6,WC9,C5 CF8,CF8M,CF8C,CF3,CF3M	WCB,WC1,WC6,WC9,C5 CF8,CF8M,CF8C,CF3,CF3M
2	Valve disc	WCB,WC1,WC6,WC9,C5 CF8,CF8M,CF8C,CF3,CF3M	WCB,WC1,WC6,WC9,C5 CF8,CF8M,CF8C,CF3,CF3M
3	Stud bolts	A193-B7,A320-B8,A193-B8M	35CrMoA,25Cr2MoV,0CM8Ni9,0Cr17Ni12Mo2
4	Hex nuts	A194-2H,A194-8,A194-8M	45,35CrMoA,25Cr2MoV, 0Cr18Ni9,0Cr17Ni12Mo2
5	Gasket	Flexible graphite + stainless steel	Flexible graphite + stainless steel
6	valve bonnet	A105,F11,F22,F5,F9 F304, F316, F321, F304L, F316L	25,1Cr18Ni9Ni,0Cr18Ni12Mo2Ti 20Cr1Mo1V,25Cr2MoV

Main dimensions

PN(MPa)	DN(mm)	L	H	D	D1	D2	D6	b	f	f2	Z-ød
1.6	15	130	77	95	65	45	-	14	2	-	4-14
	20	150	77	105	75	55	-	14	2	-	4-14
	25	160	80	115	85	65	-	16	2	-	4-14
	32	180	85	135	100	78	-	16	2	-	4-18
	40	200	95	145	110	85	-	16	3	-	4-18
	50	230	105	160	125	100	-	16	3	-	4-18
	65	290	120	180	145	120	-	18	3	-	4-18
	80	310	130	195	160	135	-	20	3	-	8-18
	100	350	140	215	180	155	-	20	3	-	8-18
	125	400	155	245	210	185	-	22	3	-	8-18
	150	480	180	280	240	210	-	24	3	-	8-23
	200	600	245	335	295	265	-	26	3	-	12-23
2.5	15	130	100	95	65	45	-	16	2	-	4-14
	20	150	105	105	75	55	-	16	2	-	4-14
	25	160	120	115	85	65	-	16	2	-	4-14
	32	180	130	135	100	78	-	18	2	-	4-18
	40	200	135	145	110	85	-	18	3	-	4-18
	50	230	149	160	125	100	-	20	3	-	4-18
	80	310	169	195	160	135	-	22	3	-	8-18
	100	350	194	230	190	160	-	24	3	-	8-23
	150	480	255	300	250	218	-	30	3	-	8-25
	200	600	305	360	310	278	-	34	3	-	12-25
4.0	15	130	100	95	65	45	40	16	2	4	4-14
	20	150	105	105	75	55	51	16	2	4	4-14
	25	160	120	115	85	65	58	16	2	4	4-14
	32	180	130	135	100	78	66	18	2	4	4-18
	40	200	135	145	110	85	76	18	3	4	4-18
	50	230	149	160	125	100	88	20	3	4	4-18
	80	310	169	195	160	135	121	22	3	4	8-18
	100	350	194	230	190	160	150	24	3	4.5	8-23
	150	480	255	300	250	218	204	30	3	4.5	8-25
	200	600	305	375	320	282	260	38	3	4.5	12-30