Normally Closed Diaphragm Valve for Water Softener and Sand Filter

Short Description:

Feature:

Closing valve: the pressure control source is connected with the upper control chamber, the diaphragm pushes the valve seat through the valve stem, thereby cutting off the water to close the valve.

Opening valve: the pressure control source is connected with the lower control chamber, the pressure in the upper and lower chambers of the diaphragm is balanced, and water pushes the valve stem through its own pressure, so that cavity is easily formed and water is passed.

Working pressure: 1-8bar

Working temperature: 4-50°C

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Product Detail

Product Tags

Normally Closed Diaphragm Valve (NC): When there is no control source (water/air pressure source), the valve is in the closed state.
Closing the valve: The valve body is connected to the control chamber on the diaphragm, and the system fluid is directed to the upper chamber of the diaphragm. At this time, the pressure at both ends of the valve stem is balanced, and the valve is closed.
Opening the valve: The control pressure source (air/water source) is directed to the lower control chamber of the diaphragm. At this time, the pressure in the lower chamber of the diaphragm is greater than that in the upper chamber, which pushes the valve stem open, forming a passage for the fluid to pass through.
Technical Advantage:
1. The upper and lower double-control chamber design is adopted, and the control source and system fluid are independent of the two chambers, so that the valve controlling is more flexible, reliable and durable, completely eliminating the hidden danger of the single-chamber control valve being insensitive and loose.
2. The double-chamber design ensures that the diaphragm and the system fluid “no-touch isolation”, and there is no membrane corrosion, suitable for various media such as pure water, sewage, acid/alkaline, etc.
3. The diaphragm material is made of EPDM, which is fatigue-resistant, aging-resistant, and has a long service life.
4. All flow-through parts of the valve are made of reinforced PP, with good corrosion resistance. There are three valve body materials for your optional according to the use scenario: reinforced PA, reinforced PP, NORYL.
Technical parameters:
Working pressure: 0.1-0.8MPa
Working temperature: 4-50°C
Control source: water or air
Control pressure: > Working pressure
Fatigue times: 100,000 times
Burst pressure: ≥4 times the maximum working pressure
Specifications: 1″, 2″, 3″, 4″
Application:
pharmaceuticals, textile industry, leather processing industry, pure water treatment, electronics industry (printed circuit boards), sewage treatment, maritime engineering, commercial buildings, etc.
Interface type:
Socket weld end, Union end, Coupling, Flanged
Valve Body material:
Reinforced PA, Reinforced PP, NORYL.
Normally Closed Diaphragm Valve (NC)_00