National standard swing check valve

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Product introduction

Product description

main features

Middle flange bolt connection

Horizontal and vertical pipelines are applicable

Swing or lift disc

Standard flange connection

Product specification

design code

Structure length

Connecting flange

Test and inspection

Pressure temperature

Product identification

Supply specification

GB/T 12236

GB/T 12235

GB/T12221

JB/T 79

JB/T 9092

GB/T 9131

GB/T12220

JB/T 7928

Main parts and materials

Part name	body material
Valve body and bonnet	WCB	WC6	LCB	CF8M
Valve disc	25	1CR18NI9TI	1CR18NI9TI	1CR18NI9TI
Around axis	WCB	25CR2MOV	LCB	CF8M
shim	18-8 Flexible graphite
Bolt	35/35CRMO	25CR2MOV	1CR18NI9T	1CR18NI9
Applicable temperature	-29-425℃	-29-550℃	-46-350℃	-40-550℃
Applicable media	Water, oil, steam	oil, steam	Propane, ethylene	Nitric acid

Main outline and connection dimensions

Product model	Nominal diameter DN	PN1.6/2.5MPA							WT(KG)
Product model	Nominal diameter DN	L	D	D1	D2	B	Z-φd	H	WT(KG)
	50	230	160	125	100	16	4-φ18	135	21
	65	290	180	145	120	18	4-φ18	142	28
	80	310	195	160	135	20	8-φ18	165	38
	100	350	215	180	155	20	8-φ18	180	58
	125	400	245	210	185	22	8-φ18	210	92
	150	480	280	240	210	24	8-φ23	233	130
	200	550	335	295	265	26	12-φ23	304	210
	250	650	405	355	320	30	12-φ23	348	294
	300	750	460	410	375	30	12-φ25	390	367
	350	850	520	470	435	34	16-φ25	430	410
	400	950	580	525	485	36	16-φ30	468	461
	500	1150	705	650	608	44	20-φ34	525	850

	50	230	160	125	100	20	4-φ18	160	22
	65	290	180	145	120	22	8-φ18	175	29
	80	310	195	160	135	22	8-φ18	185	38
	100	350	230	190	160	24	8-φ23	220	61
	125	400	245	220	190	28	8-φ25	248	96
	150	480	300	250	220	30	8-φ25	276	132
	200	550	360	310	250	34	12-φ25	350	213
	250	650	425	370	310	36	12-φ30	410	297
	300	750	485	430	370	40	16-φ30	430	372
	350	850	550	490	430	44	16-φ34	518	415
	400	950	610	550	490	48	16-φ34	560	480
	450	1025	660	600	555	50	20-φ34	582	610
	500	1150	730	660	610	52	20-φ41	618	920

Main outline and main connection dimensions

Nominal diameter DN	Main overall dimensions and connection dimensions										WT(KG)
Nominal diameter DN	L	D	D1	D2	D6	B	F	F2	Z-φd	H	WT(KG)
H44H-40 H44W-40 H44W-40P H44W-40R H44W-40I
50	230	160	12	100	88	20	3	4	4-φ18	169	22
65	290	180	145	120	110	22	3	4	8-φ18	173	29
80	310	195	160	135	121	22	3	4	8-φ18	185	38
100	350	230	190	160	150	24	3	4.5	8-φ23	220	61
125	400	270	220	188	176	28	3	4.5	8-φ25	248	96
150	480	300	250	218	204	30	3	4.5	8-φ25	270	132
200	550	375	320	282	260	38	3	4.5	12-φ30	342	213
250	650	445	385	345	313	42	3	4.5	12-φ34	401	297
300	750	510	450	408	364	46	4	4.5	16-φ34	423	372
350	850	570	510	465	422	52	4	5	20-φ34	455	425
400	950	655	585	535	474	58	4	5	20-φ41	510	480

Main overall dimensions and connection dimensions

Nominal diameter DN	Main overall dimensions and connection dimensions										WT(KG)
Nominal diameter DN	L	D	D1	D2	D6	B	F	F2	Z-φd	H	WT(KG)
H44H-40 H44W-40 H44W-40P H44W-40R H44W-40I
50	230	160	12	100	88	20	3	4	4-φ18	169	22
65	290	180	145	120	110	22	3	4	8-φ18	173	29
80	310	195	160	135	121	22	3	4	8-φ18	185	38
100	350	230	190	160	150	24	3	4.5	8-φ23	220	61
125	400	270	220	188	176	28	3	4.5	8-φ25	248	96
150	480	300	250	218	204	30	3	4.5	8-φ25	270	132
200	550	375	320	282	260	38	3	4.5	12-φ30	342	213
250	650	445	385	345	313	42	3	4.5	12-φ34	401	297
300	750	510	450	408	364	46	4	4.5	16-φ34	423	372
350	850	570	510	465	422	52	4	5	20-φ34	455	425
400	950	655	585	535	474	58	4	5	20-φ41	510	480

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National standard swing check valve

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