Valve Connectors Ensure Tight Connections in Mobile Equipment
These overmolded valve connectors with IP69K protection target applications in off-highway vehicles. Available in five different versions with self-assembly or molded cable, their integrated gaskets and captive screws maintain tight connections in the most demanding applications. The connectors come pre-assembled, and do not fully come apart so that maintenance workers need not worry about misplacing essential components. They feature a polyurethane encapsulation, which prevents contamination and ingress oil, even at very low temperatures.
Actuators Come with Spool Position Feedback
The PVE series 7 actuators feature a “plug-and-perform” design that works with the company’s high-performance proportional valves (PVG 32, PVG 100, PVG 120, and the new PVG 128 and PVG 256), as well as its steering valves (EHPS, EH, EHi, and OSPE). A spool-position sensor equipped with a dual demodulator provides spool-position feedback to make sure valves are in their correct position at a given input signal. Built-in safeguards include fault monitoring, optional spool-direction indication, and separate float control. They are backwards-compatible with PVE Series 4 actuators, offering more space around the valve, a microcontroller with embedded software algorithms to increase repeatability, and an wider temperature range from −40 to 90°C.
Danfoss Power Solutions, (515) 239-6000, www.powersolutions.danfoss.com
New Coil Design Minimizes Pressure Drops
The 16 solenoid-operated cartridge valves added to the FLeX electrohydraulic products series feature three new coils that help reduce pressure drops in a leak-proof, poppet-style valve. Targeting both mobile and industrial hydraulic systems, they are designed and tested to exceed 10-million-cycle operation. Coils come in interchangeable low-power, high-power, and hazardous location (explosion-proof) versions, while zinc-nickel plating on the valve and coil withstands 1,000 hours of salt fog. They leverage a floating-style design that adds an extra layer of protection against excessive torque and force.
Sun Hydraulics, (941) 362-1200, www.sunhydraulics.com
Proportional Flow-Control Valves Feature On-Board Electronics
Measuring 16 to 50 mm, these proportional flow-control valves come with standard ISO 7368 and DIN 24342 cavity and porting. Response time is 4 ms, and they can close the poppet under high load pressure. On-board electronics require a 0- to 10-V command for proportional control from a 24-V supply with a minimum of 3 A. No amplifier card is needed. Minimum pilot pressure is 40 psi, and if the voltage or pressure drops below those requirements, the valve will shift to safety mode.
Almo, (877) ALMO-NOW, www.almomanifold.com
Spool and Disc Valve Motors Dampen Pressure Spikes in Both Directions
Low-speed, high-torque spool and disc valve motors in the Xcel series offer greater durability in light- and medium-duty applications. Exhibiting a 4,000-hour lifespan, their three-zone design allows for true bidirectional operation. A case-drain option increases the drives’ resistance to pressure spikes, and extends seal and motor life.
Eaton, (800) 386-1911, www.eaton.com/xcelmotors