Industrial valves · Клапан соленоидный Camozzi: характеристики, принцип действия и применение

Camozzi Solenoid Valves: Technical Reference Guide for Automation Systems

Principle of Operation and Construction of Camozzi Solenoid Valves

Camozzi solenoid valves are electromechanical devices designed for precise remote control of liquid and gaseous media flows. Their operation is based on the movement of a shut-off element (plunger or diaphragm) under the influence of a magnetic field generated by a solenoid coil when electric current is applied. They are produced in two main configurations: normally-closed (NC), which block flow in a de-energized state, and normally-open (NO), which open the channel when de-energized, ensuring fail-safe operation in specific technological processes.

Typology and Functional Features of Camozzi Valves

Two-way solenoid valves

Functional purpose: to implement the “open/close” function in pipeline systems. They have two ports (inlet/outlet) and are used to interrupt or resume flow.
Main application: shut-off and dosing operations in low and medium pressure systems.

Four-way solenoid valves

Functional purpose: switching and redirecting flows between several lines.
Main application: control of double-acting pneumatic and hydraulic cylinders, where alternating supply of working fluid to different actuator chambers is required.

Check solenoid valves

Functional purpose: to ensure unidirectional flow and prevent its backflow.
Main application: integrated into systems to protect pumps, compressors, and other equipment from the effects of water hammer and backpressure.

Pneumatic solenoid valves

Functional purpose: control of compressed air flows in pneumatic systems.
Main application: designed for pneumatic automation tasks, including controlling actuators in robotics, assembly lines, and machine tool manufacturing.

Regulating solenoid valves

Functional purpose: precise dosing and regulation of flow rate or pressure.
Main application: unlike discrete models, they provide proportional change in cross-section, which is critical for fine-tuning technological parameters.

Key Operational Characteristics of Camozzi Valves

High wear resistance: Service life of up to several million actuation cycles due to the use of wear-resistant materials (brass, stainless steel) and seals (NBR, FKM, EPDM), adapted for operation in conditions of vibration and temperature fluctuations.
Tightness: High class of shut-off tightness (up to class A according to GOST 9544-2015), achieved through precision machining of the mating surfaces of the plunger and seat, which eliminates external and internal leaks.
Actuation dynamics: Short response time (from several milliseconds) to a control signal, ensuring high speed and accuracy of technological operations in automation systems.
Energy efficiency: Optimized design of solenoid coils with reduced power consumption, which reduces operating costs and thermal load on the equipment.
Compactness: Small dimensions and thoughtful housing geometry, allowing valves to be integrated into equipment with high component density.
Maintainability: Modular design, providing the ability to quickly replace the solenoid coil or seal kit without the need to dismantle the entire valve from the system.

Areas of Application in Industrial Automation

Pneumatic systems: Control of pneumatic cylinders, grippers, distribution blocks, and air preparation systems.
Automotive manufacturing: Integration into conveyor lines, welding robots, test benches for brake systems and fuel supply systems.
Petrochemical sector: Control of reagent flows, sample collection, operation as part of emergency shutdown systems. Explosion-proof versions (ATEX) are available.
Food industry: Dosing of liquid ingredients, control of bottling and packaging lines. Models made of stainless steel and with food-grade seals (FDA) are used.
Energy: Control of coolant, fuel gases, and oil supply in boiler installations and thermal power plants.
Medical instrumentation: Precise control of medical gas supply (oxygen, air) in artificial lung ventilation machines, analyzers, and sterilization equipment.
Pharmaceuticals: Flow control in reactors, water purification systems (WFI), and sterile solution production lines.

Engineering FAQ: Answers to Frequent Questions

What is the fundamental difference between a solenoid valve and a pneumatically actuated valve?

A solenoid valve is activated directly by an electrical signal applied to the coil, which creates an electromagnetic field to move the shut-off element. A pneumatically actuated valve uses compressed air energy for the same purpose, which is supplied to the control piston. The choice depends on the availability of the control medium and the requirements for speed and safety.

In what cases should a normally-closed (NC) valve be chosen, and in what cases a normally-open (NO) valve?

The choice is determined by the fail-safe logic of the technological process. NC valves, which shut off the flow when power is disconnected, are standard for most systems. NO valves are used where, in the event of a power failure, free flow must be ensured, for example, in cooling or fire extinguishing systems.

What is the purpose of four- and five-way distributors?

These valves (often called pneumatic distributors) are indispensable for controlling the reversible movement of actuators, primarily double-acting pneumatic cylinders. They allow alternating supply and release of pressure from the piston and rod chambers of the cylinder, ensuring its forward and reverse movement.

Supply of Camozzi Solenoid Valves from EV Group China

EV Group China acts as an official technological partner and distributor, ensuring direct deliveries of original Camozzi products. We guarantee the compliance of all fittings with factory quality standards and provide full technical documentation.

Advantages of working with EV Group China:

Extensive warehouse stock: Maintaining an extensive warehouse stock of the most in-demand valve series, including two-way and multi-way models in NC and NO versions, to minimize delivery times.
Direct logistics: Organization of direct logistic chains from the manufacturer, which eliminates the risk of counterfeiting and unjustified intermediary markups.
Order fulfillment: Ability to fulfill complex orders, from single valves for repair to wholesale batches for equipping production lines.
Technical consulting: Providing expert support by EV Group China engineers for correct selection of fittings for specific technical conditions and customer tasks.