Energen™

• is a new, highly efficient non-return valve that allows free flow from inlet to outlet and blocks flow in the opposite direction.
• consists of an integrated generator that converts lost hydraulic power into usable energy – providing a durable power source and at the same time full functionality of the check valve.
• generates power for additional equipment or tools. It can also recover lost hydraulic energy from the return line to the tank or from the by-pass system.

Advantages and properties of ENERGEN™

• converts hydraulic losses into electrical energy
• generates energy for sensors, solenoid valves and other electronics directly in the hydraulic valve
• reduces the amount of cabling for higher reliability and safety

SUN Hydraulics has officially announced the launch of Sun Common (SC) cavity valves. These valves are designed with SAE-style common cavity that complies with the ISO 17209:2013 standard.
The new Common Cavity cartridge valves are optimized for lower pressure systems and expand Sun Hydraulics' wide range of existing cartridge valves.

Currently, the following types of valves are available for Common Cavities:

• 4/3 switchboard electrically controlled slide type
• 4/2 switchboard electrically controlled slide type
• 3/2 switchboard electrically controlled slide type
• 2/2 switchboard electrically controlled slide type
• selection valve
• check valve

for cavity size 08 and 10

Regenerative circuits are used to ensure higher extension speeds of the straight hydraulic motor (cylinder). When extending, the hydraulic oil from the piston rod side (differential side of the cylinder) is transferred to the full side of the cylinder.
In this way, the same extension and retraction speed can be achieved.

There are two types of regeneration:

•  permanent regeneration - regeneration is functional in all operating states
•  pressure-dependent regeneration - in this case, regeneration occurs only at a certain time. If the working pressure rises above the set value, the regeneration is stopped and the full surface of the cylinder is used => a higher force is achieved, but with a slower extension. High speed of movement at lower force vs. full force at a lower extension speed is used e.g. for rapid feed / pressing presses.

Sun hydraulics offers ready-made solutions for regeneration:

• with working pressure up to 350 bar
• flow rate up to 910 l / min
• in pipe design or as modular blocks for vertical grouping

Precise electro-proportional pressure limitation, ideal for motor control for fans

The new RPEI valves offer fine and precise fan speed control with a pressure limiting function in the event of a blockage in the fan motor or a power failure.
The RPEI combines an electro-proportionally adjustable pilot stage and a power main stage that allows precise pressure control that is inversely proportional to the electrical input signal. The setting of the maximum limiting pressure takes place on the adjusting screw with the solenoid switched off and allows the designer to adjust the RPEI according to his individual requirements.

In the case of fan drives, the electro-proportional RPEI with inverse pressure limiting function provides gentle and precise changes in motor pressure to maintain the required fan speed and also serves as a pressure limiting valve to protect the hydraulic system when the fan motor is blocked or solenoid is supplied. interrupted (RPEI limits the pressure to a mechanically set value).

The new RPEI valves have the following features:

• Nominal flow 95 l / min.
• Available in two pressure settings:
• "A" setting: 210 bar - manually adjustable from 60 to 210 bar (740 series low power coil required).
• "W" setting: 350 bar - manually adjustable from 140 to 350 bar (740 series high power coil required).
• Developed and tested for 5 million operating cycles.
• Meets the new NFPA T2.6.1 R2014 test standard for fatigue and destruction pressures.
• Standard Zinc-Nickel finish (1000 hours in salt spray).
• Fully compatible with XMD proportional amplifiers (for open and closed circuit applications).

More information on Precise electro-proportional inverse relief valve | Sun Hydraulics

Standard hydraulic solutions from Sun hydraulics are field-tested, ready for immediate use and their portfolio is constantly expanding. Thanks to more than 700 ready-made solutions that provide 20 different control functions, you can implement your hydraulic equipment faster.

Now this portfolio is expanded by 9 new modular speed control valves of ISO-03, -05, -07 and -08. This family of modular valves consists of a 2/2 manifold, which in one position allows full flow and in the other position conducts the flow through a control throttle valve. Such a connection allows step-by-step control of the speed of the appliance. These modular valves use a variety of throttle valves to control the flow, from a needle throttle valve to pressure drop stabilization throttle valves.

The two important features of these modular valves are:

• maximum speed of the appliance during normal movement
• precise speed control when necessary (eg precise positioning of parts or slow movement during pressing)

This is exactly what you need to increase productivity, shorten work cycle time.