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Swing Check Valve

FYL is a manufacturer of hydraulic machinery and equipment from China. Swing check valve is one of its many products. It is mainly used to control the flow direction of the fluid and can adapt to different types of media. As a comprehensive enterprise, we integrate design, production and sales. Our professional technical team can help you customize products that meet your actual needs.

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Product Description

Product Introduction

The swing check valve produced and provided by FYL is an automatic valve. The working mechanism of this type of valve is to use the force generated by the flow of the medium in the pipeline to achieve the control of opening and closing.

When the check valve is used in the pipeline system, its main function is to prevent the medium from flowing back, and it can also prevent the pump and its driving motor from reversing, or it can play the role of discharging the medium in the container. Due to these functions, the check valve is used in pipelines in the fields of petroleum, chemical, pharmaceutical, and power industries. It has good adaptability to different working conditions and is a very practical valve solution.

Product Feature

1. The flow channel of the swing check valve is streamlined, that's why this kind of valve can help to reduce resistance.

2. As mentioned above, swing check valve is an automatic valve, its opening and closing parts are controlled by the medium itself, which can effectively prevent backflow.

3. It can be applied to a variety of pipeline flanges, flange standards and flange sealing types to meet a variety of engineering needs and user requirements. If you want a more targeted solution, you can also contact us for customized design and production. We are always willing to serve you, and will offer you competitive price, so just feel free to ask for quotation.

4. There are many types of valve bodies, and the sealing gaskets can be reasonably selected according to the actual situation or individual requirements, which are suitable for a variety of pressure, temperature and medium conditions.

5. The impact when the valve is closed is small, and water hammer is not easy to occur, which further improves durability and service life, which means less maintenance costs.

Main Connection Dimensions

Main Parameter

Pressure PN(MPa)	Test Pressure(MPa)		Working Temperature(℃)				Medium
Pressure PN(MPa)	Shell	Seal	WCB	Cr5Mo	1Cr18Ni12Mo2Ti	1Cr18Ni9Ti	Medium
1.6	2.4	1.8	≤425	≤550	≤220	≤200	Water, oil, steam, acidic medium
2.5	3.8	2.8
4.0	6.0	4.4
6.4	9.6	7.1
10.0	15.0	11.0			-
16.0	24.0	17.6
25.0	37.5	27.5

Main external and connection dimension

DN		L				D					D1					D2					n-d
mm	in	DIN	BS	ANSI	JIS	DIN BS 10/16		ANSI	JIS 5k/10k		DIN BS 10/16		ANSI	JIS 5k/10k		DIN BS 10/16		ANSI	JIS 5k/10k	b	DIN BS 10/16		ANSI	JIS 5k/10k
25		160				115	115				85	85				65				16	4-14	4-14
32		180				135	135				100	100				78				16	4-18	4-18
40	1.5	200		165		145	145	127			100	100	99			85	88	78		16	4-18	4-18	4-16
50	2	230	203	203	203	160	160	152	130	155	125	125	121	105	120	100	102	99	96	16	4-18	4-18	4-19	4-15	4-19
65	2.5	290	216	216	216	180	180	178	155	175	145	145	140	130	140	120	122	118	116	18	4-18	4-18	4-19	4-15	4-19
80	3	310	241	241	241	195	195	191	180	185	160	160	152	145	150	135	138	129	126	20	8-18	8-18	4-19	4-18	8-19
100	4	350	292	292	292	215	215	229	200	210	180	180	191	165	175	155	158	168	154	20	8-18	8-18	8-19	8-18	8-19
125	5	400	330	330	330	245	245	254	235	250	210	210	216	200	210	185	188	193	182	22	8-18	8-23	8-23	8-18	8-23
150	6	480	356	356	356	280	280	279	265	280	240	240	241	230	240	210	212	213	212	24	8-23	8-23	8-23	8-18	8-23
200	8	500	495	495	495	335	335	343	320	330	295	295	299	280	290	265	268	271	262	26	8-23	12-23	8-29	8-22	12-23
250	10	550	622	622	622	395	405	406	385	400	350	355	362	345	355	320	320	332	324	30	12-23	12-28	12-26	12-22	12-25
300	12	650	698	696	696	445	460	483	430	445	400	410	432	390	400	375	378	402	368	30	12-23	12-28	12-26	12-22	12-25