RX2280-44SZ073010 power regulator

RX2280-44SZ073010 power regulator；

Brand: CD Automation

Origin: Italy

Since 1987, CD Automation has been providing thyristor units - SCR, static relays, soft starters, and high-quality temperature regulators for the industrial automation field. One of the factors contributing to success is building a sales team with a strong technical background to collaborate with customers in finding solutions. Italian CD Automation products include controllers, starters, relays, and are widely used in textiles, plastics, microwave ovens, and other industries.

Main products of Italian CD Automation

Italian CD Automation Controller

Italian CD MOTION Starter

Italian CD Automation Relay

Italian CD Automation Temperature and Power Controller

Italian CD MOTION REVO TC 1PH Temperature and Power Controller

Suitable for ordinary resistive load types

From 30A to 210A

Limitations. Voltage 480V, 600Vac

Load type: Resistance

Input: Pt100, thermocouple, 0:10V, 4:20mA

Heather Break Alert Options

Shooting mode: Zero crossing

CD AUTOMATION ；

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RX2280-44SZ073010 power regulator；

Shandong Sailite's main products include various sensors, hydraulic and pneumatic components, optical detection equipment, analytical instruments, experimental equipment, electrical equipment and components, brake transmission components, machines, tools, etc.

Industrial Knowledge

Common faults of pressure reducing valves: unstable pressure, large pressure oscillation, and sometimes loud noise

According to relevant standards, the pressure swing of J-type pressure reducing valve is ± 0.1 MPa, and that of JF type is ± 0.3 MPa. Exceeding this standard is considered as large pressure swing and unstable pressure.

① The J-type and JF type pressure reducing valves are pilot operated, and the pilot valve is compatible with the relief valve. Therefore, the causes and elimination methods of large pressure oscillation can refer to the relevant parts of the relief valve.

② When the pressure reducing valve is used beyond the rated flow rate, the main valve often oscillates, causing the pressure reducing valve to become unstable. At this time, the outlet pressure undergoes a cycle of "increasing pressure and decreasing pressure again and again", so it is necessary to choose a pressure reducing valve that is suitable for the model and specifications.

③ The back pressure on the oil drain port L is high, which can also cause pressure oscillations and instability. It is recommended to return oil separately from the oil drain pipe.

④ If the spring is deformed or has poor stiffness (due to poor heat treatment), resulting in large pressure fluctuations, a qualified spring can be replaced.

Common faults of pressure reducing valves: After the working pressure is set, the outlet pressure increases automatically

In some pressure reducing control circuits, the outlet pressure of the pressure reducing valve is used to control the size of the control oil pressure of the electro-hydraulic reversing valve or external control sequence valve. When the electro-hydraulic reversing valve or external control sequence valve changes direction or works, the outlet flow rate of the pressure reducing valve becomes zero, but the pressure still needs to maintain the originally set pressure. In this case, since the outlet flow of the valve is zero, the flow through the pressure reducing port is only the pilot flow. Due to the low pilot flow rate, usually within 2L/min, the pressure reducing port of the main valve is basically close to the fully closed position (with a very small opening), and the pilot flow flows out from the triangular groove or inclined cone surface. If the main valve core is too loose or worn out, the leakage rate will increase. According to the law of flow continuity, this part of the leakage must also flow from the damping hole of the main valve core, that is, the flow through the damping hole is composed of two parts: the pilot flow and the leakage. However, the damping hole area and the oil pressure in the main valve spring chamber remain unchanged (the oil pressure in the spring chamber is determined by the pre compression of the pressure regulating spring that has been adjusted). In order to increase the flow through the damping hole, it will inevitably cause an increase in the oil pressure in the lower chamber of the main valve. Therefore, when the outlet pressure of the pressure reducing valve is set, if the outlet flow rate is zero, the outlet pressure will increase due to loose fitting or excessive wear of the main valve core.