An air valve is a crucial component in a diaphragm pump, controlling compressed air flow. It plays a vital role in distributing compressed air to the diaphragms, creating the force necessary to move the diaphragms back and forth, thereby pumping the fluid. To optimize efficiency, air valves are typically positioned at the center of the pump between the diaphragms, minimizing air loss. The design of industrial air valves ensures durability and optimal performance in harsh environments.
Air valve assembly is critical to the pump’s operation, as it regulates the air entering and exiting the diaphragms, controlling the pump’s cycle and performance. This air valve assembly also contributes to reducing energy loss, ensuring smooth, uninterrupted pumping cycles.
Air valves are constructed from durable materials such as brass, aluminum, plastic, or stainless steel, depending on the operating environment and the type of fluid being pumped. For more specialized uses, flexible air valves are often utilized in systems that demand precise control and adaptability in variable flow conditions.
Types of Air Valves
– Internal air valve: Integrated within the pump body, often more complex to maintain, but essential for compact pump valve configurations.
– External air valve: Located outside the pump body, allowing for easy removal and replacement, facilitating maintenance. Thanks to specialized seals, air valves operate reliably without the need for lubrication, contributing to environmental friendliness and extended service life.
Additionally, some pumps utilize a pilot valve assembly to assist in controlling the timing and function of the air valve, ensuring consistent performance throughout operation. This component helps to improve the overall efficiency and longevity of the system by precisely managing the air supply to the pump.
Operating Principle of Diaphragm Pump Air Valves
A pneumatic diaphragm pump operates based on the reciprocating motion of the piston. As the piston moves, it displaces the diaphragm, creating a vacuum and pressure. The air valve supplies compressed air to the chamber, creating pressure that pushes the diaphragm outward. This action causes the fluid to be drawn in and then discharged. The cycle can be summarized as follows:
– Cycle 1: The air valve supplies compressed air to the left chamber, pushing the diaphragm to the left. This closes inlet valve 1 and opens outlet valve 2, allowing the fluid to be discharged. Simultaneously, the right diaphragm moves to the left, closing inlet valve 4 and opening inlet valve 3 to draw in fluid.
– Cycle 2: Similar to cycle 1, but the diaphragms move in the opposite direction. Fluid is discharged through outlet valve 4 while inlet valve 3 is closed. Inlet valve 1 opens and outlet valve 2 closes, drawing in fluid.
These two cycles alternate continuously, creating a pumping action controlled by the precise functioning of the air valve assembly.
Hepas – A Trusted Air Valve Supplier
At Hepas, we pride ourselves on being a leading provider of replacement parts for diaphragm pumps and dosing pumps in industrial applications. With over 10 years of experience, we offer comprehensive solutions with high-quality products that meet international standards at competitive prices.
Reasons to Choose Hepas Products:
– Diverse Product Range: Hepas offers a wide variety of replacement parts, including air valves, pilot valve assemblies, and other pump components from renowned brands like Aro, Sandpiper, and Wilden, ensuring compatibility with various pump types.
– Superior Quality: Our products, including industrial air valves, are guaranteed to meet high-quality standards, maintaining optimal pump performance and minimizing downtime.
– Stock Availability: Hepas consistently maintains a large inventory of replacement parts at our warehouse in Vietnam, ensuring quick and convenient global supply.
– Competitive Pricing: We are committed to providing our customers with the best prices on the market without compromising quality.
Don’t let a shortage of spare parts affect your operational efficiency. Contact Hepas’s technical team today for consultation, support, and fast delivery!
