Working principle of Italian Camozzi solenoid valve

Brand

CAMOZZI/Italian Camozzi

Flow Direction

Other

3C Valve Category

Industry

Application Areas

Medical & Health, Environmental Protection, Food/Agricultural Products, Chemical, Petroleum

Camozzi Proximity Switches, Camozzi Fittings, Camozzi Valve Islands, Camozzi Automatic Control Valves, Camozzi Pneumatic Control Valves, Camozzi Servo Valves, Camozzi Pressure Regulators, Camozzi Fluid Valves

Camozzi (Italian Camozzi)

Founded in 1964, Camozzi Group has branches in 75 countries worldwide. In the field of pneumatic automation, Camozzi is the largest pneumatic component company in Italy and one of the world's top 10 pneumatic component manufacturers. It was among the first to pass DNV ISO9000 certification and has also passed DNV ISO14000 certification. Camozzi pneumatic components have 23 branches, 53 agents, and 8 global factories. Camozzi products from Italy are widely used in light industry, textiles, printing and dyeing, food, packaging, printing, rubber and plastics, chemicals, electronics, automotive, and machinery equipment industries.

Camozzi Italy

Product Introduction

Camozzi primarily manufactures Italian Camozzi pneumatic actuators, Italian Camozzi pneumatic control components, Italian Camozzi air source treatment devices, Italian Camozzi pneumatic auxiliary components, and Italian Camozzi vacuum components.

Camozzi's Automation Division provides pneumatic component solutions for numerous industries. The complete product range includes cylinders, valves, FRLS, accessories, vacuum components, control cabinets, and systems. Major production equipment manufacturing plants are located in Russia, China, Ukraine, the USA, and India, with the headquarters in Italy.

Every Camozzi device utilizes advanced technology, based on lean manufacturing principles and a structured and highly efficient organization. Their global network of branches and distributors worldwide provides confidence to a wide range of customers, from major users to larger OEMs.

Camozzi solenoid valves are electromagnetically controlled industrial devices, fundamental components of automation systems used to control fluids. They are actuators, not limited to hydraulic or pneumatic systems. Used in industrial control systems to adjust the direction, flow rate, speed, and other parameters of the medium. Solenoid valves can be used with different circuits to achieve the desired control, ensuring both precision and flexibility. There are many types of solenoid valves, each playing a different role in the control system. The most common are check valves, safety valves, directional control valves, and speed control valves.

Camozzi (Italy)

Solenoid Valve Working Principle

Camozzi solenoid valves contain a sealed chamber with through-holes at different positions, each connecting to a different oil pipe. Inside the chamber is a piston, flanked by two electromagnets. When the coil of one electromagnet is energized, the valve body is attracted to that side. By controlling the movement of the valve body, different drain holes are opened or closed. The inlet hole is always open, allowing hydraulic oil to enter different drain pipes. The oil pressure then pushes the piston in the cylinder, which in turn moves the piston rod, which in turn drives the mechanical device. Mechanical movement is controlled by controlling the on/off state of the electromagnet.

Camozzi solenoid valves are mainly classified as follows:

1. Based on their operating principle, Camozzi solenoid valves are divided into three main categories:

1) Direct-acting solenoid valves:

Camozzi solenoid valve principle: When energized, the electromagnetic coil generates electromagnetic force to lift the closing element from the valve seat, opening the valve; when de-energized, the electromagnetic force disappears, and the spring presses the closing element back onto the valve seat, closing the valve.

Camozzi solenoid valve characteristics: It can operate normally under vacuum, negative pressure, and zero pressure, but the nominal diameter is generally no more than 25mm.

2) Step-by-step direct-acting solenoid valves:

Camozzi solenoid valve principle: It combines direct-acting and pilot-operated principles. When there is no pressure difference between the inlet and outlet, after energization, the electromagnetic force directly lifts the pilot valve and the main valve closing element sequentially upwards, opening the valve. When the inlet and outlet reach the starting pressure difference, upon energization, the electromagnetic force actuates the pilot valve, causing the pressure in the lower chamber of the main valve to rise and the pressure in the upper chamber to fall. This pressure difference pushes the main valve upwards. When de-energized, the pilot valve uses spring force or medium pressure to push the closing element downwards, closing the valve.

Camozzi solenoid valve characteristics: Reliable operation even at zero pressure difference, vacuum, or high pressure, but requires higher power and must be installed horizontally.

3) Pilot-operated solenoid valve:

Camozzi solenoid valve principle: When energized, the electromagnetic force opens the pilot orifice, causing the pressure in the upper chamber to drop rapidly, creating a pressure difference around the closing element (higher at the bottom and lower at the top). The fluid pressure pushes the closing element upwards, opening the valve. When de-energized, the spring force closes the pilot orifice, and the inlet pressure quickly creates a pressure difference around the closing element through the bypass orifice, creating a pressure difference (higher at the bottom and lower at the top). The fluid pressure pushes the closing element downwards, closing the valve.

Camozzi solenoid valve characteristics: Higher upper limit of fluid pressure range; can be installed arbitrarily (customization required), but must meet fluid pressure difference conditions.

2. Camozzi solenoid valves are categorized into six subcategories based on differences in valve structure, materials, and operating principles: direct-acting diaphragm structure, step-by-step direct-acting diaphragm structure, pilot-operated diaphragm structure, direct-acting piston structure, step-by-step direct-acting piston structure, and pilot-operated piston structure.

3. Camozzi solenoid valves are also classified by function: water solenoid valves, steam solenoid valves, refrigeration solenoid valves, cryogenic solenoid valves, gas solenoid valves, fire-fighting solenoid valves, ammonia solenoid valves, gas solenoid valves, liquid solenoid valves, miniature solenoid valves, pulse solenoid valves, hydraulic solenoid valves, normally open solenoid valves, oil solenoid valves, DC solenoid valves, high-pressure solenoid valves, and explosion-proof solenoid valves, etc. The company mainly deals with European and American brands and can source brands from any European country. For example, our key German brands include: BURKERT, DEMAG, HAWE, REXROTH, HYDAC, PILZ relays, FESTO, IFM sensors, E+H, HEIDENHAIN, P+F sensors, SICK, TURCK, and HIRSCHMANN industrial switches. German brands: Hengstler, Murr, Schmersal, Samson, EPRO (Emerson Group)

American brands: MOOG, ASCO, MAC, NUMATICS, PARKER, VICKERS, ROSS

British brands: Norgren

Italian brands: OMAL, ATOS, CAMOZZI, UNIVER, Camozzi