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Accessories - Complementary valves Series 900 Series 900 General Construction characteristics We use corrosion proof material, brass or anodized aluminium and the most appropriate specific mixture for seals. if more information is required please contact our technical departement. Use and maintenance in use pay attention to the minimum and maximum criteria for temperature and pressure, checking and ensure good quality compressed air. in a dirty environment, protect the exhaust ports. in this case, maintenance is minimal and is necessary only if the air is particularly dirty. this simple operation it should be carried out by a competent person. ATTENTION: use hydraulic oil class H for lubrication such as MAGnA GC 32 (Castrol). Overall dimensions and technical information are provided solely for informative purposes and may be modified without notice 1 | 341 1 Air distributiOn the 900 series consist of the following components: - Pressure switch, which transforms a pneumatic signal into an electric one. - impulse generator, which transforms a permanent pneumatic signal into an adjustable impulse from 0 to 10 seconds. - Pneumatic timer (n.C. or n.O.), which cuts or releases a pneumatic signal within an adjustable time. - Two hands safety valve, which allows a safety use of two hands pneumatic controls (for example two push-button 3/2 N.C. to a certain distance) excluding false signals in case of push-button or valve malfunction. - Flip - Flop: 5/2 ways valve, single signal actuated, commutes the outlet from 2 to 4 and vice versa at each puls. - For a correct functioning it's important that inlet pressure be the same or lower than pilot pressure. - Oscillator valve, 5/2 - G 1/8" with two logic functions "NOT" mounted on board, switches when the pressure in the connected cylinder exhaust chamber is reaching the threshold of "NOT". - Signal amplifier, 3/2 - G 1/8" N.C. valve actuated by weak signals but higher than 0.05 bar. - Progressive start-up valve, which is a device that is fitted in between valve or solenoid valve and cylinder allows a gradual filling of the chamber providing a low power cylinder movement. The progressive start-up valve is made of a flow control valve and a 2/2 N.C. valve with 6 mm nominal orifice. the valve is totally open when the pressure in the cylinder reaches 50% of inlet pressure. - High-low pressure devices, located in the pneumatic circuit between valve and cylinder, allow the function of the cylinder with two different pressures. Example: in case of a locking action, it is possible to approach the required position at a low pressure, then increase to its maximum value in the circuit with the use of an electric signal. they are practically made of a piloted pressure regulator without relieving.
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