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Coal mine gas industry

Check valve

Product Overview

National standard lifting check valve is suitable for the pipeline with nominal pressure PN1.6-16.0MPa and operating temperature -46~55℃ in petroleum, chemical industry, pharmaceutical industry, chemical fertilizer, electric power industry and other working conditions to prevent the backflow of media.

Structural characteristics

1. Reasonable product structure, reliable sealing, excellent performance and beautiful appearance;
2, the surface welding Co base hard alloy, wear resistance, corrosion resistance, abrasion resistance, long service life;
3. The built-in pin shaft structure reduces the leakage point and ensures reliable use;
4. When the pressure is ≥ 16.0mpa, the valve cavity adopts self-tightening sealing structure. The higher the medium pressure is, the better the sealing performance will be.
5. The material, flange and butt welding end size of the parts can be reasonably selected according to the actual working conditions or user requirements to meet various engineering needs.

Execution standard

Pressure and temperature class: GB/T 12224
Structure length: GB/T 12221, GB/T 15188
Flange type dimensions: GB/T 9113, JB/T 79
Butt end connection: GB/T 12224
Inspection and test: JB/T 9092 GB/T13927

Performance parameter

Nominal diameter: DN15~300mm
Nominal pressure: PN1.6-16.0MPa
Applicable temperature: -46~55℃
Main material: forged steel
Suitable medium: water, oil, steam, nitric acid, acetic acid, etc
Application: applicable to petroleum, chemical, pharmaceutical, chemical fertilizer, power industry, low temperature and other conditions of the pipeline.

Product Dimensions

DN(mm)	L	D	D1	D2	b	Z-Φd	H	WT(kg)
H41H-16C H41W-16P/PL H41W-16R/RL H41Y-16I
15	130	95	65	45	14	4-Φ14	77	3
20	150	105	75	55	14	4-Φ14	77	4
25	160	115	85	65	14	4-Φ14	80	5
32	180	135	100	78	16	4-Φ18	85	7
40	200	145	110	85	16	4-Φ18	95	9
50	230	160	125	100	16	4-Φ18	105	10
65	290	180	145	120	18	4-Φ18	120	20
80	310	195	160	135	20	8-Φ18	130	30
100	350	215	180	155	20	8-Φ18	140	39
125	400	245	210	185	22	8-Φ18	155	50
150	480	280	240	210	24	8-Φ23	180	70
200	600	335	295	265	26	12-Φ23	215	161
250	650	405	355	320	30	12-Φ25	260	251
300	750	460	410	375	34	12-Φ25	315	395
H41H-25C H41W-25P/PL H41W-25R/RL H41Y-25I
15	130	95	65	45	16	4-Φ14	100	3.4
20	150	105	75	55	16	4-Φ14	105	5
25	160	115	85	65	16	4-Φ14	120	5.7
32	180	135	100	78	18	4-Φ18	130	9.1
40	200	145	110	85	18	4-Φ18	135	11.8
50	230	160	125	100	20	4-Φ18	149	14.4
65	290	180	145	120	22	4-Φ18	160	23
80	310	195	160	135	22	8-Φ18	169	30
100	350	230	190	160	24	8-Φ23	194	44
125	400	270	220	188	28	8-Φ25	222	65
150	480	300	250	218	30	8-Φ25	255	99
200	600	360	310	278	34	12-Φ25	305	190
250	650	425	370	332	36	12-Φ30	355	315
300	750	485	430	390	40	12-Φ30	410	450

DN(mm)	L	D	D1	D2	D6	b	Z-Φd	H	WT(kg)
H41H-40C H41W-40P/R/PL/RL H41Y-40I
15	130	95	65	45	40	16	4-Φ14	100	4
20	150	105	75	55	51	16	4-Φ14	105	5.5
25	160	115	85	65	58	16	4-Φ14	120	6
32	180	135	100	78	66	18	4-Φ18	130	12
40	200	145	110	85	76	18	4-Φ18	135	14
50	230	160	125	100	88	20	4-Φ18	149	18
65	290	180	145	120	110	22	8-Φ18	160	27
80	310	195	160	135	121	22	8-Φ18	169	36
100	350	230	190	160	150	24	8-Φ23	194	50
125	400	270	220	188	176	28	8-Φ25	225	75
150	480	300	250	218	204	30	8-Φ25	255	119
200	600	375	320	282	260	38	12-Φ30	305	217
250	650	445	385	345	313	42	12-Φ34	360	310
300	750	510	450	408	364	46	12-Φ34	415	365

DN(mm)	L	D	D1	D2	D6	b	Z-Φd	H	WT(kg)
H41H-64C H41W-64P/R/PL/RI H41Y-64I
15	170	105	75	55	40	20	4-Φ14	100	7
20	190	125	90	68	51	22	4-Φ18	110	11
25	210	135	100	78	58	24	4-Φ18	125	13
32	230	150	110	82	66	24	4-Φ23	140	14
40	260	165	125	95	76	24	4-Φ23	168	20
50	300	175	135	105	88	26	4-Φ23	170	23
65	340	200	160	130	110	28	8-Φ23	188	37
80	380	210	170	140	121	30	8-Φ23	205	46
100	430	250	200	168	150	32	8-Φ25	230	68
125	500	295	240	202	176	36	8-Φ30	203	89
150	550	340	280	240	204	38	8-Φ34	265	131
200	650	405	345	300	260	44	12-Φ34	310	235

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