Italian ATOS proportional valve RZMO-P1-010/315 in stock

Brand

ATOS/Italian Atos

ATOS Vane Pumps, ATOS Hydraulic Cylinders, ATOS Relief Valves, ATOS Proportional Valves, ATOS Stack Valves, ATOS Solenoid Valves

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The main valve of an ATOS proportional valve is generally a spool valve, similar to a directional valve. However, the valve core is not driven by an electromagnet, but by the hydraulic pressure output from the pre-stage valve. This is similar to an electro-hydraulic directional valve, except that the pre-stage valve of an electro-hydraulic directional valve is an electromagnetic directional valve, while the pre-stage valve of a servo valve is a nozzle-flange valve or jet valve with better dynamic characteristics.

In other words, the main valve of the servo valve is controlled by the output pressure of the pilot valve, and the pressure of the pilot valve comes from the inlet p of the servo valve. If the pressure at port p is insufficient, the pilot valve cannot output enough pressure to actuate the main valve spool.

We know that when the load is zero, if the four-way spool valve is open, the pressure at port p = the pressure at port t + the pressure loss at the valve port (ignoring other pressure losses in the oil circuit). If the pressure loss at the valve port is very small, and the pressure at port t is zero, then the pressure at port p is insufficient to supply the pilot valve to actuate the main valve spool, and the entire servo valve fails. Therefore, the valve port of the servo valve is made relatively small, so that even when the valve port is fully open, there must be a certain pressure loss to maintain the normal operation of the pilot valve.

ATOS proportional valves actually have many disadvantages: high energy consumption, prone to failure, poor resistance to contamination, high price, etc., but only one advantage: the highest dynamic performance among all hydraulic valves. Because of this advantage, servo valves are essential in many applications requiring high dynamic performance, such as aircraft and rocket servo control and turbine speed regulation.

Advantages and Disadvantages of ATOS Proportional Valves

The main valve of a proportional valve is generally a spool valve, similar to a directional valve. However, the valve core is not driven by an electromagnet, but by the hydraulic pressure output from the pre-stage valve. This is similar to electro-hydraulic directional valves, except that the pre-stage valve of an electro-hydraulic directional valve is an electromagnetic directional valve, while the pre-stage valve of a proportional valve is a nozzle-flange valve or jet valve with better dynamic performance.

In other words, the main valve of a proportional valve is controlled by the output pressure of the pre-stage valve, which comes from the inlet p of the servo valve. If the pressure at p is insufficient, the pre-stage valve cannot output enough pressure to actuate the main valve core.

We know that when the load is zero, if the four-way spool valve is open, the pressure at port p = pressure at port t + pressure loss at the valve port (ignoring other pressure losses in the oil circuit). If the pressure loss at the valve port is very small, and the pressure at port t is zero, then the pressure at port p is insufficient to supply the pilot valve to actuate the main valve spool, and the entire servo valve will fail. Therefore, the valve port of the servo valve is made relatively small, so that even when the valve port is fully open, there must be a certain pressure loss to maintain the normal operation of the pilot valve.

E-MI-AC-01F+AGMZO-A-10/315+RZMO-P1-010/315?[ ATOS ]

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DKZOR-A-173-D5 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: Henstler, Murr, Schmersal, Samson, EPRO (Emerson Group)

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

British brands: Norgren

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