Diaphragm Operated Solenoid Valve

Introduction
Established in 2005, Ammar Industrial Corporation is an authorised supplier, wholesaler, dealer, stockist, distributor, and retailer of precision-engineered pneumatic-hydraulic-instrumentation-automation products and industrial process equipment based in Kolkata. Our range includes Air Preparation Unit, Pneumatic Solenoid Valve, Pneumatic Cylinder Actuator, hydraulic tools, fluid automation solenoid valves, etc. Our quality norms enable us to maintain and enhance our position in today’s competitive market. Ammar Industrial Corporation’s premium quality products are recognised as the most reliable. Moreover, we follow a quality policy to monitor these products before delivering them to customers.
Accurate and dependable fluid control is crucial for seamless functioning in contemporary industrial systems. The Diaphragm Operated Solenoid Valve is one of the most reliable parts utilised in many industries for this purpose. This valve, which is well-known for its effectiveness, robustness, and ease of maintenance, is essential for regulating the flow of gases and liquids. Offering premium diaphragm-operated solenoid valves made to satisfy exacting industrial requirements, Ammar Industrial Corporation is a reputable brand in the industrial components industry. Ammar Industrial Corporation provides solutions that industries can rely on, with a strong emphasis on performance and dependability. We are the best Diaphragm Operated Solenoid Valve Dealer.
What Is a Diaphragm Operated Solenoid Valve
An electromechanical valve that regulates fluid flow by means of an electrically powered solenoid coil and an elastic diaphragm is known as a diaphragm-controlled solenoid valve. The solenoid opens when an electrical current is delivered, enabling the diaphragm to open or close the valve and effectively controlling the flow. Diaphragm-driven solenoid valves are perfect for managing higher flow rates with less power consumption since, in contrast to direct-acting valves, they rely on line pressure to aid in operation. These valves are especially prized for their low power consumption, leak-proof construction, and effortless handling of high pressure and high flow rates. We are the best Diaphragm Operated Solenoid Valve Supplier.
Why Choose Ammar Industrial Corporation
1. Reliable and Smooth Operation
- Diaphragm-operated solenoid valves use a flexible diaphragm to control the flow, ensuring smooth opening and closing without sudden pressure shocks. This design minimises vibration, water hammer, and wear on internal components, resulting in stable and dependable performance even under continuous operation.
2. Excellent Sealing and Leak-Free Performance
- The diaphragm acts as a tight sealing element between the valve body and the flow media. This ensures excellent leak resistance, making these valves suitable for applications where precision and safety are critical, such as chemical processing, water treatment, and fuel systems.
3. Handles Wide Pressure and Flow Ranges
- One of the biggest advantages of diaphragm-operated solenoid valves is their ability to handle high flow rates with low power consumption. They utilise line pressure to assist valve operation, allowing efficient control of large volumes of fluid while maintaining consistent performance across varying pressure ranges.
4. Ideal for Dirty or Contaminated Media
- Unlike direct-acting valves, diaphragm-operated solenoid valves can handle slightly dirty or particulate-laden fluids without frequent clogging. This makes them perfect for industrial water lines, irrigation systems, cooling circuits, and wastewater applications.
5. Energy Efficient Design
- These valves require less electrical energy to operate because the solenoid only controls a pilot flow, while the main diaphragm uses system pressure to open or close. This makes them an energy-efficient solution for long-term and continuous use.
6. Longer Service Life and Low Maintenance
- With fewer moving metal parts and a flexible diaphragm design, wear and tear are significantly reduced. As a result, diaphragm-operated solenoid valves offer long service life, reduced downtime, and low maintenance costs, which is a major advantage for industrial operations.
7. Safe and Automatic Control
- These valves provide quick and accurate automatic control when integrated with control panels, PLCs, or sensors. They enhance operational safety by ensuring controlled flow shutdown during power failures or emergency conditions, depending on normally open or normally closed configurations.
8. Cost-Effective Flow Control Solution
- Considering their durability, efficiency, and low maintenance requirements, diaphragm-operated solenoid valves deliver excellent value for money. They reduce operational costs while offering reliable performance over long periods.
9. Available in Multiple Materials and Sizes
- Diaphragm-operated solenoid valves are available in brass, stainless steel, cast iron, and engineered plastics, with diaphragms made from NBR, EPDM, Viton, and PTFE. This allows easy selection based on media type, temperature, and pressure requirements.
10. Safe Operation in Automated Systems
- These valves are widely used in automated and remote-controlled processes. Their fast response time, consistent performance, and compatibility with PLC and control panels make them perfect for modern automation and smart industrial setups.
Applications of Diaphragm Operated Solenoid Valves
1. Water Treatment Plants
- In water treatment and distribution systems, diaphragm-operated solenoid valves are used to control water flow, filtration cycles, chemical dosing, and backwashing operations. Their leak-proof design ensures safe and efficient handling of clean and treated water.
2. Chemical Processing Industry
- These valves are ideal for handling chemicals, acids, and solvents. The diaphragm isolates the fluid from moving parts, reducing the risk of corrosion and contamination. Ammar Industrial Corporation supplies valves suitable for aggressive chemical environments.
3. Oil and Gas Industry
- In oil refineries and gas processing plants, diaphragm-operated solenoid valves help regulate fuel flow, control pipelines, and manage pressure systems. Their robust construction ensures reliable performance under high-pressure and temperature conditions.
4. Steam and Boiler Systems
- Steam applications demand valves that can withstand high temperatures and pressures. Diaphragm-operated solenoid valves are commonly used in boilers, steam distribution lines, and heating systems for precise steam control.
5. Food and Beverage Industry
- Hygiene and cleanliness are critical in food processing. These valves are used for controlling water, milk, beverages, and other liquids while maintaining sanitary conditions. Their smooth operation minimises contamination risks.
6. Pharmaceutical Industry
- In pharmaceutical manufacturing, accuracy and cleanliness are essential. Diaphragm-operated solenoid valves are used in cleanroom environments, fluid transfer systems, and dosing applications where precision matters.
7. HVAC Systems
- Heating, ventilation, and air conditioning systems use diaphragm-operated solenoid valves for controlling chilled water, hot water, and refrigerants. Their quick response improves energy efficiency and system performance.
8. Air and Pneumatic Systems
- In pneumatic automation systems, diaphragm-operated solenoid valves control compressed air flow for actuators, cylinders, and tools. They offer fast response and consistent operation, making them suitable for automated production lines.
9. Textile and Dyeing Industries
- These valves play a key role in controlling water, steam, and dyes in textile processing units. Their resistance to high temperatures and chemicals ensures consistent performance.
10. Irrigation and Agricultural Systems
- Automated irrigation systems rely on diaphragm-operated solenoid valves for precise water flow control. They help optimise water usage and improve operational efficiency in agriculture.
Specification Table Diaphragm Operated Solenoid Valve
| Parameter | Specification |
|---|---|
| Material | Diaphragm Operated Solenoid Valve |
| Operation | Electric (Normally Closed / Normally Open) |
| Body Material | Brass, Stainless Steel, PVC |
| Diaphragm Material | EPDM / NBR / PTFE |
| Seal Material | Buna-N / Viton / Silicone |
| Port Sizes | 1/4″, 3/8″, 1/2″, 3/4″, 1″, 1½″, 2″ |
| Pressure Range | 0–10 bar (0–145 psi) |
| Fluid Temperature | –10°C to 80°C (varies with material) |
| Voltage Options | 12V DC / 24V DC / 110V AC / 230V AC |
| Media Compatibility | Water, Air, Non-flammable liquids, Chemicals |
| Response Time | Typically < 0.1 sec |
| Insulation Class | Class F / Class H available |
| Ingress Protection | IP65 |
| Certifications | CE, UL (optional) |
Benefits of Diaphragm Operated Solenoid Valve
1. High Flow Capacity
- Diaphragm-operated solenoid valves are designed to handle large flow rates with minimal pressure drop. The full-bore design ensures efficient fluid movement, making them ideal for water treatment plants, irrigation systems, and industrial pipelines.
2. Energy Efficient Operation
- These valves require very low power to operate because the diaphragm uses line pressure to assist opening and closing. This results in reduced energy consumption compared to direct-acting valves, helping lower operational costs.
3. Reliable Performance at Low Pressure
- One of the biggest advantages of diaphragm-operated solenoid valves is their ability to operate efficiently even at low differential pressure. This makes them suitable for systems where pressure fluctuations are common.
4. Excellent Sealing and Leak-Proof Design
- The flexible diaphragm provides a tight seal, preventing leakage and ensuring consistent flow control. This feature is especially important in applications involving water, air, steam, and mild chemicals.
5. Longer Service Life
- With fewer moving metal parts and reduced friction, diaphragm-operated solenoid valves experience less wear and tear. This results in extended service life and reduced downtime, even in continuous-duty applications.
6. Low Maintenance Requirement
- The simple internal design allows easy inspection and replacement of the diaphragm. Maintenance costs are low, and servicing can often be done without removing the valve from the pipeline.
7. Fast and Smooth Response
- These valves offer quick opening and closing action, ensuring accurate flow control. The smooth operation also minimises water hammer and pressure surges in piping systems.
8. Wide Range of Applications
- Diaphragm-operated solenoid valves are suitable for water, air, oil, gas, steam, and compatible chemical media. They are commonly used in HVAC systems, irrigation, fire protection systems, industrial automation, and process industries.
9. Safe and Stable Operation
- The diaphragm isolates the solenoid from the fluid, protecting electrical components from corrosion and contamination. This improves safety and ensures stable performance in harsh environments.
10. Cost-Effective Solution
- Due to their durability, low power consumption, and minimal maintenance needs, diaphragm-operated solenoid valves offer excellent value for money over their entire lifecycle.
Types of Diaphragm Operated Solenoid Valves
1. Direct-Acting Diaphragm Solenoid Valve
- In a Direct-Acting Diaphragm Solenoid Valve, the solenoid directly controls the diaphragm’s movement without requiring differential pressure. When the coil is energised, the diaphragm lifts to allow fluid flow; when de-energised, it returns to its seat to stop flow.
Key features:
- Operates at low pressures, including vacuum.
- Simple design with fast response time.
- Suitable for small pipe sizes (typically up to ½ inch).
2. Pilot-Operated Diaphragm Solenoid Valve
- Pilot-operated valves use system pressure to assist in opening and closing the diaphragm. A small pilot orifice controlled by the solenoid regulates the pressure above or below the diaphragm, thus enabling the main valve to open or close.
Key features:
- Ideal for medium to high-pressure applications.
- Can handle larger flow capacities.
- More energy-efficient in systems with a stable supply pressure.
3. Two-Way Diaphragm Solenoid Valve
- A Two-Way Diaphragm Solenoid Valve has one inlet and one outlet. It functions as a simple on/off valve that either allows fluid to pass or stops it.
Key features:
- Simplest form of solenoid valve.
- Compact and reliable.
- Good for basic flow control.
4. Three-Way Diaphragm Solenoid Valve
- Three-way versions have three ports and can switch flow between two outputs or vent ports. They allow for more complex control logic like diverting, mixing, or releasing pressure.
Key features:
- Supports alternate flow paths.
- Enables mixing or diverting operations.
- Used in pneumatic control loops.
5. Normally Closed vs. Normally Open
- Irrespective of configuration, diaphragm solenoid valves may be:
- Normally Closed (NC) – Valve stays shut when not energised.
- Normally Open (NO) – Valve stays open when not energised.
Conclusion
The Diaphragm Operated Solenoid Valve is a vital component in modern industrial flow control systems, offering efficiency, durability, and precise operation. Its ability to handle high flow rates with minimal power consumption makes it an ideal choice for diverse industrial applications. We are the best Diaphragm Operated Solenoid Valve Provider.
Ammar Industrial Corporation is a trusted name in supplying high-performance diaphragm-operated solenoid valves that deliver consistent results and long-term value. With a strong focus on quality, reliability, and customer support, we are committed to providing flow control solutions that power industrial success.