Noise check valve-Water conservancy control valve series-水利控制阀厂家-上海冠环阀门制造有限公司

Product overview

The energy-saving muffler check valve is suitable for water supply and drainage pipelines. The valve disc is guided by the central axis at both ends of the inlet. It can be opened and closed flexibly and can be installed horizontally or vertically. The valve disc is spring loaded, its quick closing can effectively eliminate water hammer, the sealing performance is good, and the closing is silent. It has the advantages of small size, light weight, low fluid resistance, fatigue resistance and long life.

Structural features

1. The inner cavity of the valve body adopts a streamlined design, and the flow rate is designed according to the standard to reduce sharp bends, corners, and sharp protrusions, thereby reducing the resistance of the fluid.

2. The front and rear of the valve disc are designed to be tapered, which greatly reduces the fluid resistance and reduces the noise caused by turbulent flow.

3. The closing stroke of the valve disc is short, only 1/4 of the nominal diameter, which reduces the closing time of the valve disc and reduces the generation of water hammer.

4. The valve uses a spring to accelerate the closing speed of the valve disc and reduce the generation of water hammer.

5. The valve disc is a hollow thin shell structure, which reduces the inertia of the valve disc, which not only enables the valve disc to start quickly when it is closed, but also reduces the impact noise when it is closed.

6. This product can be installed vertically, horizontally, obliquely and at any angle.

7. This product has compact structure, few parts, small volume, light weight and beautiful appearance.

8. The inner and outer surfaces are sprayed with environmental protection coating to ensure the anti-corrosion and safety of the product.

Main performance specifications

Model	Nominal pressure	Shell test pressure	Seal test pressure	Applicable media	Operating temperature
H41X一10	1.0MPa	1.5 MPa	1.1 MPa	Water and weak corrosive fluids	0～80℃
H41X一16	1.6 MPa	2.4 MPa	1.76 MPa	Water and weak corrosive fluids	0～80℃

Main part material

Model	Body	Seal	Spring
H41X-10	Cast iron or stainless steel	Nitrile rubber (NBR)	Stainless steel wire 1Cr18Ni9Ti
H41X-16	Cast steel or stainless steel	Nitrile rubber (NBR)	Stainless steel wire 1Cr18Ni9Ti

Main external connection dimensions

Nominal pressure	Nominal diameter	Size(mm)
Nominal pressure	Nominal diameter	L	D	K	b	Z-Φd
1.0	40	112	145	110	18	4-18
	50	120	160	125	20	4-18
	65	130	180	145	20	4-18
	80	150	195	160	22	8-18
	100	165	215	80	24	8-18
	125	190	245	210	26	8-18
	150	210	280	240	26	8-22
	200	255	335	295	28	8-22
	250	310	390	350	28	12-22
	300	320	440	400	28	12-22
	350	380	500	460	30	16-22
	400	405	565	515	32	16-26
	450	430	615	565	32	20-26
	500	450	670	620	34	20-26
	600	510	780	725	36	20-30
1.6	40	112	145	110	18	4-18
	50	120	160	125	20	4-18
	65	130	180	145	20	4-18
	80	150	195	160	22	8-18
	100	165	215	180	24	8-18
	125	190	245	210	26	8-18
	150	210	280	240	26	8-22
	200	255	335	295	30	12-22
	250	310	405	355	32	12-26
	300	320	460	410	32	12-26
	350	380	520	470	36	16-26
	400	405	580	525	38	16-30
	450	430	640	585	40	20-30
	500	450	715	650	42	20-33
	600	510	840	770	48	20-36