What Is a Swing Check Valve?

Swing check valve is also called check valve or check valve, its role is to prevent the medium in the pipeline from flowing backward. The opening and closing parts rely on the flow of the medium and the force to open or close by itself, and the valve to prevent the medium from flowing backward is called a check valve. Non-return valve is an automatic valve. It is mainly used for pipelines where the medium flows in one direction. It only allows the medium to flow in one direction to prevent accidents. This type of valve should generally be installed horizontally in the pipeline.

Swing check valve is also called check valve or check valve, its role is to prevent the medium in the pipeline from flowing backward. The opening and closing parts rely on the flow of the medium and force to open or close by themselves to prevent the medium from flowing backward. The valve is called

Swing check valve is suitable for nominal pressure PN1.0MPa ~ 42.0MPa, Class150-2500; nominal diameter DN15 ~ 1200mm, NPS1 / 2 ~ 48; working temperature 196 ~ 540 for various pipelines, to prevent The medium is flowing backwards. By using different materials (WCB, CF8 (M), CF3 (M), 1Gr ₅ Mo, 15CrMo1V, it can be applied to water, steam,

The swing check valve adopts a built-in swing arm swing swing structure. All the opening and closing parts of the valve are installed inside the valve body and do not penetrate the valve body.

test pressure	Nominal pressure (MPa)
	1. 0	1.6		2.5	4.0		6.4
Shell test	1. 5	2.4		3.75	6.0		9.6
Seal test	1. 1	1.76		2.75	4.4		7.1
Body material	WCB (C)		CF8 (P), CF 8M (R)			WC6, WC9
Operating temperature	425	100		100	550		550
Applicable medium	Water, steam, oil	Nitric acid		Acetic acid	steam		steam

DN	Main dimensions and connection dimensions
	L	D	D1	D2	b	Zd	H
H44H-16C H44W-16C H44W-16P H44W-16R H44W-16I
25	160	115	85	65	16	4-14	100
32	180	135	100	78	16	4-18	105
40	200	145	100	85	16	4-18	115
50	230	160	125	100	16	4-18	135
65	290	180	145	120	18	4-18	142
80	310	195	160	135	20	8-18	165
100	350	215	180	155	20	8-18	180
125	400	245	210	185	twenty two	8-18	210
150	480	280	240	210	twenty four	8-23	233
200	500	335	295	265	26	12-23	304
250	550	405	355	320	30	12-25	348
300	650	460	410	375	30	12-25	390
350	750	520	470	435	34	16-25	430
400	850	580	525	485	36	16-30	468
H44H-25 H44W-25 H44W-25P H44W-25R H44W-25I
25	160	115	85	65	16	4-14	100
32	180	135	100	78	16	4-18	105
40	200	145	110	85	16	4-18	115
50	230	160	125	100	20	4-18	160
65	290	180	145	120	twenty two	8-18	175
80	310	195	160	135	twenty two	8-18	185
100	350	230	190	160	twenty four	8-23	220
125	400	270	220	188	28	8-25	248
150	480	300	250	218	30	8-25	276
200	550	360	310	278	34	12-25	350
250	650	425	370	332	36	12-30	410
300	750	485	430	390	40	16-30	430
350	850	550	490	448	44	16-34	518
400	950	610	550	505	48	16-34	560

Nominal diameter DN / mm	Size / mm (H44H-64 H44W-64 H44W-64P H44W-64R H44W-64I)									Weight / kg
	L	D	D1	D2	D6	b	Z-d	D3	H
DN50	300	175	135	105	88	26	4-23	200	177	27
DN65	340	200	160	130	110	28	8-23	225	197	37
DN80	380	210	170	140	121	30	8-23	250	212	53
DN100	430	250	200	168	150	32	8-25	315	248	90
DN125	500	295	240	202	176	36	8-30	365	298	135
DN150	550	340	280	240	204	38	8-34	410	330	187
DN200	650	405	345	300	260	44	12-34	480	385	212
DN250	775	470	400	352	313	48	12-41	565	445	403