Flange aluminum bronze double disc check valve

NegotiableUpdate on 02/05

Model

Nature of the Manufacturer: Producers

Product Category

Place of Origin

Online Consult

Overview

H46H flange aluminum bronze double disc check valve is a double disc swing check valve that adopts a clamp type connection. It is composed of valve body, valve disc, valve stem, spring and other parts, with a compact structure. This valve relies on the flow of the medium itself to automatically open and close the valve disc, which is used to prevent the backflow of the pipeline medium. It is also known as a check valve, one-way valve, backflow valve, and back pressure valve. The valve disc is made of aluminum bronze material, which has excellent corrosion resistance and is particularly suitable for pure pipelines of water, steam, oil, seawater and other media, as well as industrial, environmental protection, water treatment, and high-rise building water supply and drainage pipelines, to prevent the reverse flow of media.

Product Details

Main Features

1. Compact structure and small volumeAdopting a clamp type connection, the structural length is only 1/4~1/8 of that of traditional flange check valves, and the weight is only 1/4~1/20 of that of traditional flange check valves. It is easy to install and not limited by spatial position.

2. Quick closing of valve discThe valve disc has a short closing stroke and is spring-loaded, with fast closing speed, which can significantly reduce water hammer phenomenon and low water hammer pressure.

3. Flexible installationBoth horizontal and vertical pipelines can be used, with easy installation, smooth flow channels, and low fluid resistance.

4. Sensitive movements and good sealingThe valve disc has a short stroke, low impact force when closing the valve, sensitive action, good sealing performance, simple and compact overall structure, and beautiful appearance.

5. Long service lifeAdopting aluminum bronze valve disc, it has excellent corrosion resistance, high reliability, and long service life.

6. Advantages of Aluminum Bronze MaterialThe valve disc is made of aluminum bronze material, which has excellent corrosion resistance, wear resistance, and impact resistance, and is particularly suitable for media such as seawater and weakly corrosive liquids.

Technical Specifications

parameter category	Technical Specifications
Nominal Diameter	DN50-1000mm
Nominal Pressure	PN1.0-4.0MPa
Applicable Temperature	-20℃~425℃
Applicable Medium	Water, steam, oil products, seawater, etc
Valve body material	WCB、304、316、316L
Valve disc material	aluminum bronze
connection method	flange connection
design standards	JB/T8937、API594、API6D
structural length	GB/T12221-1989、ISO5752-82

working principle

The dual disc structure of H46H double disc check valve adopts a spring-loaded disc, suspended on a central vertical pin shaft. When the fluid begins to flow, the valve disc opens under the combined force acting on the center of the sealing surface. The point of action of the spring support force that acts as a counterforce is located outside the center of the valve disc surface, causing the root of the valve disc to open first and avoiding friction on the sealing surface. When the flow rate slows down or stops, the torsion spring automatically reacts, causing the valve disc to close and approach the valve body and seat, reducing the distance and time of the closing stroke and effectively preventing medium backflow.

Main appearance and connection dimensions

Nominal Diameter	Structural length L (mm)	Outer diameter of flange D (mm)	Bolt hole center circle diameter D1 (mm)	Number of bolt holes Z - Φ d
DN50	60	160	125	4-Φ18
DN65	67	180	145	4-Φ18
DN80	73	195	160	4-Φ18
DN100	73	215	180	8-Φ18
DN125	86	245	210	8-Φ18
DN150	98	280	240	8-Φ23
DN200	127	335	295	8-Φ23
DN250	146	390	350	12-Φ23
DN300	181	440	400	12-Φ23
DN350	184	500	460	16-Φ23
DN400	191	565	515	16-Φ25

Application field

H46HFlange aluminum bronze double disc check valveWidely used in urban, industrial, and high-rise building water supply and drainage networks, pure pipelines, industrial, environmental protection, and water treatment systems, especially suitable for the transportation system of seawater, weakly corrosive liquids, and other media. Installed at the outlet of the water pump, it is used to prevent medium backflow and eliminate water hammer phenomena, protecting the safe operation of the pump unit and pipelines

Ordering Instructions

When calling for inquiries or orders, please indicate the product type, application location, material, nominal diameter, nominal pressure, working medium, working pressure difference, medium temperature, power supply voltage and power parameters so that we can correctly select and quote for you.

Yongjia Gongao Valve Co., Ltd