Searched for "*".

The valve control spools on three way valves are, with the exception of very large nominal diameters, placed in the centre position and maintained there by two springs as soon as the solenoid force or

A sleeve made of certain elastomers (e.g. fluoroplastics) contains a spring made of stainless steel that provides defined, constant sealing forces (Figure F 2) . Spring assisted sealing elements are u

Of the most important forms of energy that can be used for drives (mechanical, hydraulic and pneumatic) only mechanical energy does not require conversion (Figure E 29) . For all forms of energy the d

There are essentially three ways to recovery energy used: Utilisation of kinetic energy between moving masses by using hydraulic motors with secondary regulation. The energy recovered is collected in

The basis is Bernoulli's equation for ideal, incompressible fluids: = static pressure + dynamic pressure + geodetic pressure. This equation yields the related energy element as The last term ρ · g · h

Possibilities for energy saving result from measures to reduce the energy demand and energy loss as well as to recover energy . Specifically these are the following measures (Table E 2) : Design impro

Switching elements that after contact or contactlessly output position-dependent signals. As a rule they operate electrically. For electrical position switches a differentiation is made between contac

Feature used to reduce the speed of a piston before the end of its stroke. The damping can be mechanical or using a fluid; a choice can be made between fixed or adjustable ( Damping of cylinder motion

Concentrates

HLPD oils