Lift check valve

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Lift check valve

Product use
H41H, H41Y type PN16~PN100 Lifting check valve is one of the important steps in the production process adjustment system. It is a valve that controls the one-way flow direction of the medium in the pipeline and prevents the medium from flowing backward.

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Product details

Product Usage

H41H, H41Y type PN16~PN100 lifting check valve is one of the important links in the production process adjustment system. It is a valve that controls the one-way flow direction of the medium in the pipeline and prevents the medium from flowing backward.

Features

1. H41H and H41Y lift check valves have the advantages of simple structure, reliable operation and convenient maintenance. They are widely used in purification equipment, petroleum, chemical, metallurgy, electric power, textile and other production processes.

2. When the medium flows into the valve body as indicated by the arrow of the valve body, the pressure of the medium acts on the valve flap to generate an upward thrust. When the medium thrust is greater than the gravity of the valve flap, the valve opens. When the force of the medium pressure acting on the valve flap plus the force of the valve flap itself is greater than the force exerted on the valve flap by the pre-valve pressure, the valve is closed to prevent the medium from flowing backward.

Performance parameter

model		H41H-16C~100	H41Y-16C~100	H41W-16P~100
Working pressure (MPa)		1.6~10.0
Applicable temperature (°C)		≤425		≤150
Applicable medium		Water, steam, oil		Weakly corrosive medium
material	Valve body, bonnet	Carbon steel		Chrome nickel titanium stainless steel
	Sealing surface	Surfacing chrome stainless steel	Surfacing hard alloy	Chrome nickel titanium stainless steel
	Gasket	Steel strip graphite entanglement		PTFE

Main shape and connection size

Nominal diameter	Main dimensions and connection dimensions
Nominal diameter	L	D	D1	D2	b	Zd	H
H41H-16C H41W-16C H41W-16P H41W-16R H41W-16I
15	130	95	65	45	14	4-14	77
20	150	105	75	55	14	4-14	77
25	160	115	85	65	14	4-14	80
32	180	135	100	75	16	4-18	85
40	200	145	110	85	16	4-18	95
50	230	160	125	100	16	4-18	105
65	290	180	145	120	18	4-18	120
80	310	195	160	135	20	8-18	130
100	350	215	180	155	20	8-18	140
125	400	245	210	185	22	8-18	155
150	480	280	240	210	24	8-23	180
200	600	335	295	265	26	12-23	215
250	730	405	355	320	30	12-25	260
300	850	460	410	375	34	12-25	315
H41H-25 H41W-25 H41W-25P H41W-25R H41W-25I
15	130	95	65	45	16	4-14	100
20	150	105	75	55	16	4-14	105
25	160	115	85	65	16	4-14	120
32	180	135	100	78	18	4-18	130
40	200	145	110	85	18	4-18	135
50	230	160	125	100	20	4-18	149
65	290	180	145	120	22	8-18	160
80	310	195	160	135	22	8-18	169
100	350	230	190	160	24	8-23	194
125	400	270	220	180	28	8-25	222
150	480	300	250	218	30	8-25	255
200	600	360	310	278	34	12-25	305
250	730	425	370	332	36	12-30	355
300	850	485	430	390	40	16-30	410

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