Hydraulic Hand Lever Valve Inlet Section Relief Valve 40-320bar

The inlet section closes one end of the control block. Set the relief valve to the highest pressure your cylinders and motors may see, between 40 and 320 bar; above that, the oil is relieved to tank. When all levers are in neutral, the pump flow passes through the block pressureless to the outlet section and back to tank. Combine it with one to nine lever sections, an outlet section and the tie rod set for that number of sections, all ordered separately.

Pros:

• Relief valve adjustable from 40 to 320 bar
• Protects the whole control block against overpressure
• One inlet section serves up to nine lever sections

Cons:

• Not a valve on its own - needs lever sections, an outlet section and a tie rod set

Series:

Modular hydraulic hand lever valves for mobile and industrial machines. A control block is built from an inlet section with an adjustable pressure relief valve (40 to 320 bar), one to nine hand lever sections and an outlet section, clamped together with the tie rod set for that number of sections. Lever sections are double-acting with A and B blocked or open to tank in neutral, or single-acting with A blocked. In neutral, the pump flow returns pressureless to tank through a neutral bypass channel. The levers spring back to neutral as standard; detent kits hold them in position 1, 2 or both. An optional kit gives closed centre for a variable displacement pump, or power beyond to a second block. P and T ports G1/2, A and B ports G3/8. Inlet pressure up to 320 bar, return pressure max 35 bar. Nominal flow 50 l/min for blocks with 1 or 2 lever sections, 45 l/min for 3 to 5, 40 l/min for 6 or 7 and 35 l/min for 8 or 9. Steel and plastic bodies, NBR seals, for mineral oil of 10 to 300 mm²/s from -30 to +90 °C. Also known as sectional control valves.