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Description Material Performance Product Size Specifications

heck valve for the pipeline system, its main role is to prevent the media back, to prevent the pump and its drive motor reversal, as well as the release of the medium inside the container. Check valve can also be used to provide the pressure of the auxiliary system which can rise to more than the main system pressure supply pipeline. Check valve according to the different materials, can be applied to all kinds of media in the pipeline. Check valve installed in the pipeline, which becomes one of the components of the complete fluid pipeline, the valve will open and close the process by which it is affected by the system transient flow state; in turn, the valve closure characteristics have made effect on the fluid flow state。

Pipe flange	Nominal pressure	Normal product model
JB/T74-90 GB9112-9124、HG20592-20614	PN1.0MPa	H71H-10C	H71W10P	H71W10P8	H71W10P3	H71W10R	H71W10R8	H71W10R3
	PN1.6MPa	H71H-16C	H71H-16P	H71H-16P8	H71H-16P3	H71H-16R	H71H-16R8	H71H-16R3
	PN2.5MPa	H71H-25	H71H-25P	H71H-25P8	H71H-25P3	H71H-25R	H71H-25R8	H71H-25R3
	PN4.0MPa	H71H-40	H71H-40P	H71H-40P8	H71H-40P3	H71H-40R	H71H-40R8	H71H-40R3
	PN6.3MPa	H71H-63	H71H-63P	H71H-63P8	H71H-63P3	H71H-63R	H71H-63R8	H71H-63R3
	PN10.0MPa	H71H-100	H71H-100P	H71H-100P8	H71H-100P3	H71H-100R	H71H-100R8	H71H-100R3
	PN16.0MPa	H71H-160	H71H-160P	H71H-160P8	H71H-160P3	H71H-160R	H71H-160R8	H71H-160R3
CB/T9112-9124、HG20615-20635、SH3406	PN2.0MPa	H71H-20C	-	H71H-20P8	H71H-20P3	-	H71H-20R8	H71H-20R3
	PN5.0MPa	H71H-50	-	H71H-50P8	H71H-50P3	-	H71H-50R8	H71H-50R3
	PN11.0MPa	H71H-110	-	H71H-110P8	H71H-110P3	-	H71H-110R8	H71H-110R3
	PN15.0MPa	H71H-150	-	H71H-150P8	H71H-150P3	-	H71H-150R8	H71H-150R3
ANSIB16.5	Class150	H71H-A1C	-	H71H-A1CP8	H71H-A1P3	-	H71H-A1R8	H71H-A1R3
	Class300	H71H-A3	-	H71H-A3P8	H71H-A3P3	-	H71H-A3R8	H71H-A3R3
	Class600	H71H-A6	-	H71H-A6P8	H71H-A6P3	-	H71H-A6R8	H71H-A6R3
	Class900	H71H-A9	-	H71H-A9P8	H71H-A9P3	-	H71H-A9R8	H71H-A9R3

Order note:
If there is no selected model, please provide detailed parameters, such as medium, temperature, pressure, caliber, material and so on. Our technicians will select for you
Two. Provided that the selected model is available according to the selected model
Three, non standard products need to provide samples or confirmed by drawings
Note: the information is for reference only, or incomplete, so please feel sorry for the inconvenience. The company can choose according to different requirements and parameters. The company has a variety of sizes, pressure, different materials, connections, drive mode, to meet the different needs of various types of gate valve. Please contact 021-6651 8677 or consult online.Check valves for pipeline systems, its main role is to prevent the reverse flow of media, prevent the pump and its drive motor machine machine reversal, and the release of media in the container. Check valves can also be used to feed auxiliary systems in which the pressure may rise above that of the main system. Depending on the material, check valves can be applied to a variety of media pipeline. When the check valve is installed on the pipeline, it becomes one of the fluid components of the complete pipeline. In turn, the closing characteristics of the disc have an effect on the flow state of the fluid.

To Part Material Science	valve body	WCB(A105)	ZG1Cr18Ni9Ti	CF8(304)	CF3(304L)	ZG1Cr18Ni12Mo2Ti	CF8M(316)	CF3M(316L)
	Valve	2Cr13	1Cr18Ni9Ti	0Cr18Ni9	00Cr19Ni10	1Cr18Ni12TMo2i	00Cr17Ni12Mo2	00Cr17Ni14Mo2
	Pressure ring	2Cr13	1Cr18Ni9Ti	0Cr18Ni9	00Cr19Ni10	1Cr18Ni12TMo2i	00Cr17Ni12Mo2	00Cr17Ni14Mo2
	Spring	0Cr18Ni9	0Cr18Ni9	0Cr18Ni9	00Cr19Ni10	1Cr18Ni12TMo2i	00Cr17Ni12Mo2	00Cr17Ni14Mo2
Applicable condition	Suitable medium	Water, steam, Oil and so on	Nitric acid and other corrosive media		Strong oxidizing medium	Acetic acid and other corrosive media		Shit and rot Corrosive medium
	Applicable temperature（℃）	-29～425	-196～540		-196～425	-196～540		-196～455
Note: this table is a conventional method for the preparation of the clamp type check valve, the main parts material and applicable conditions, other requirements and models of the preparation of the clip type check valve model preparation method.

Nominal diameter		The fluid resistance coefficient when the valve is fully opened	Total opening of the valve at room temperature when the water stresses E			Fluid flow
DN	NPS		Kv(m3=／h)	CV(U.S)	CV(U.K)	↑	↓	→
						Open pressure approximation KPa
15	1/2	6.4	2.6	3.0	2.5	3	2	2.5
20	3/4	5.1	6.4	7.5	6.3	3	2	2.5
25	4	4.1	12.6	14.8	12.3	3	2	2.5
32	11/4	4.1	19.7	23.1	19.3	3	2	2.5
40	11/2	3.8	29.5	63.9	28.9	3	2	2.5
50	2	3.5	54.6	99.9	63.5	3	2	2.5
65	21/2	3.5	85.4	150	83.7	3	2	2.5
80	3	3.2	128	286	125	3	2	2.5
100	4	2.8	244	286	249	3	2	2.5
125	5	2.9	375	439	368	3	1	2.2
150	6	3.1	522	611	512	3	1	2.2
200	8	3.2	915	1070	897	3	1	2.2

Nominal pressure female PN MPa	Nominal diameter DN mm	size(mm)						weight (Kg)	Flange (for reference)
		L	D	D2	D3	D4	D5		Bolt hole center diameter CDl	Bolt Number	Bolt diameter d	Bolt Length Ll
PN1.0MPa PN1.6MPa	15	16	52	15	24	31	40	0.12	65	4	M12	75
	20	19	62	19	30	40	50	0.24	75	4	M12	90
	25	22	70	24	36	47	58	0.34	85	4	M12	90
	32	28	83	31	46	56	68	0.53	100	4	M16	100
	40	31.5	93	39	55	66	78	0.80	110	4	M16	105
	50	40	108	48	65	78	90	1.2	125	4	M16	125
	65	46	128	62	80	95	110	1.8	145	4	M16	130
	80	50	142	76	96	110	125	2.2	160	8	M16	135
	100	65	162	95	115	135	150	3.4	180	8	M16	150
	125	90	192	110	125	132	-	9.0	210	8	M16	180
	150	106	218	127	150	158	-	14	240	8	M20	210
PN1.0MPa	200	140	273	165	200	208	-	24	295	8	M20	240
PN1.6MPa	200	140	273	165	200	208	-	24	295	12	M20	240
PN2.5MPa	15	16	52	15	24	31	40	0.12	65	4	M12	80
	20	19	62	19	30	40	50	0.24	75	4	M12	90
	25	22	72	24	36	47	58	0.34	85	4	M12	90
	32	28	83	31	46	56	68	0.53	100	4	M16	110
	40	31.5	93	39	55	66	78	0.80	110	4	M16	115
	50	40	108	48	65	78	90	1.2	125	4	M16	125
	65	46	128	62	80	95	110	1.8	145	8	M16	135
	80	50	142	76	96	110	128	2.2	160	8	M16	145
	100	60	168	95	115	135	150	3.8	190	8	M20	160
	125	90	194	110	125	132	-	9.2	220	8	M24	205
	150	106	224	127	150	158	-	15	250	8	M24	225
	200	140	284	165	200	208	-	26	310	12	M24	260
PN4.0MPa	15	16	52	15	24	31	40	0.12	65	4	M12	80
	20	19	62	19	30	40	50	0.24	75	4	M12	90
	25	22	72	24	36	47	58	0.34	85	4	M12	90
	32	28	83	31	46	56	68	0.53	100	4	M16	110
	40	31.5	93	39	55	66	78	0.80	110	4	M16	115
	50	40	108	48	65	78	90	1.2	125	4	M16	125
	65	46	128	62	80	95	110	1.8	145	8	M16	135
	80	50	142	76	96	110	128	2.2	160	8	M16	145
	100	60	168	, 95	115	135	150	3.8	190	8	M20	160
	125	90	194	110	125	132	-	9.2	220	8	M24	205
	150	106	224	127	150	158	-	15	250	8	M24	225
	200	140	291	165	200	208	-	28	320	12	M27

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