AIR-AIR PRESSURE MULTIPLIER (BOOSTER)

Transcription

1 AIR-AIR PRESSURE MULTIPLIER (BOOSTER) The air-air pressure multiplier, or booster, is an automatic device that compresses air to give an outlet pressure that is double the inlet pressure. It is normally used to locally intensify the input pressure of one or more actuators. As it is entirely pneumatic it can be used when electric devices are not recommended. The booster can be supplied with or without a pressure regulator. It is fitted with check valves that maintain the outlet pressure even when the supply of compressed air is switched off. This means it is necessary to interrupt the supply and relieve the circuit before intervening on the device in any way. It is advisable to install a tank after the booster to prevent fluctuations in outlet pressure. TECHNICAL DATA Bore Fluid Threaded port Inlet pressure Outlet pressure MPa bar psi MPa bar psi Operating temperature C F Weight gr Mounting Installation Booster Ø Booster Ø with regulator Booster Ø Booster Ø with regulator ø ø Filtered unlubricated compressed air, Lubrication, if used, must be continuous. G /8 G /8, 9 max max. (regulated) max max. (regulated) max max (regulated) max max (regulated) max 9 max (regulated) max 9 max (regulated) Wall or panel In any position OPERATING LAYOUT The pressure booster is comprised of a central body (with one - valve, one - valve and four check valves), two side liners and a through rod on which two pistons are mounted. The supply air is compressed alternately by the two pistons in one of the two central chambers (B and C); the other central chamber and one of the two side chambers (A and D) operate the pistons; the external chamber, which is not involved in compression, is relieved. Air compressed at a ratio of : passes through a check valve that maintains the output pressure even when compressed air is no longer supplied. The valves in the central body, which are operated by mechanical pusher pistons, switch the function of the two pairs of chambers (A and D, B and C) at each piston stroke. A B C D -

2 COMPONENTS PRESSURE REGULATOR (for 9-9 only) INTERFACE BLOCK (for 9-9 only): anodized aluminium CENTRAL BODY: anodized aluminium OR SEAL: NBR rubber BARREL: anodized aluminium alloy section GUIDE BUSHING: steel strip with bronze and PTFE insert POPPET: NBR rubber CHECK VALVE: brass PISTON GASKET: NBR rubber PISTON: aluminium SELF-LOCKING NUT: stainless steel CYLINDER BASE: anodized aluminium VALVE CONTROL: anodized aluminium VALVE CONTROL GASKET: NBR rubber VALVE PISTON: technopolymer GASKET: NBR rubber SPACER: technopolymer SPOOL: nickel-plated aluminium DIFFERENTIAL BUSHING: brass PUSHER: stainless steel SILENCER: technopolymer SPRING: stainless steel GUIDE BUSHING: brass MOUNTING ø ø A 8 M M M A min M M A MAX ø ø A 8 M M M8 On a wall using the Mx - Mx screws provided with the Booster On a panel using M - M8 screws

3 TANK FILLING CURVES..8 without regulator..8 with regulator Compression ratio [p:p]....8 Compression ratio [p:p] litre tank filling time [sec] -litre tank filling time [sec] ø ø The graphs refer to the filling of a -litre tank and show the ratio of outlet to inlet pressure (= p:p) as a function of time (sec). The graphs are valid for any inlet pressure between and bar. The following formula can be used to calculate the time t (sec) required to switch from pressure ratio to pressure ratio in a tank of volume V (litres): t = V (t t) where t and t are the times shown on the x-axis, corresponding to ratios and. E.g. =. => t =. sec =. => t = sec The time required to switch from to with a -litre tank is: t = (.) sec = 8.7 sec

4 FLOW CHARTS without regulator Ø with regulator Ø Outlet pressure [bar] 8 Outlet pressure [bar] 8 Outlet flow rate [Nl/min] Outlet flow rate [Nl/min] INLET PRESSURE p=7 bar p= bar p= bar p= bar p= bar without regulator Ø with regulator Ø Outlet pressure [bar] 8 Outlet pressure [bar] Outlet flow rate [Nl/min] Outlet flow rate [Nl/min]

5 DIMENSIONS PRESSURE MULTIPLIER (Booster ø - ) Ø. 7. M 8. G /8 OUTLET (P) 9. G /8 9 IN bar OUT max bar - + C 8 8 Made in Italy 8 G /8 INLET (P) G /8 Ø 98 M G /8 OUTLET (P) G /8 8 9 IN bar OUT max bar - + C 8 Made in Italy G /8 INLET (P) 9 9 Ø BOOSTER Ø BOOSTER 7

6 Made in Italy PRESSURE MULTIPLIER (ø - Booster with regulator) Ø G /8 INLET (P) A G / IN bar OUT max bar - + C VIEW FROM "A" 7. M 8. G /8 OUTLET (P) 9. G /8 8 9 IN bar OUT max bar - + C Ø M 98 G /8 OUTLET (P) G /8 INLET (P) Ø BOOSTER WITH REGULATOR Ø BOOSTER WITH REGULATOR

7 ACCESSORIES ø REGULATOR UNIT 98 ø Regulator unit Note: Supplied with screws, O-ring ø REGULATOR UNIT 98 ø Regulator unit Nota: fornito completo di N. viti, N. O-ring PRESSURE GAUGE 97 ACC. M /8 9

8 SILENZIATORE MW SPL-F SILENCER MW SPL-F FOR PER BOOSTER ø ø CH B. L Materials: Black acetal resin Felt A B+-. F+-. L+-% CH G/8.. 9 W977 Features: Pmax: bar Temp.: - C + C F A SILENZIATORE MW SCQ SILENCER MW SPL-F FOR BOOSTER PER BOOSTER ø ø CH Materials: Nickel-plated brass Sintered nickel-plated bronze A B+-. F+-. L+-% CH G/ W 97 L F Features: Pmax: bar Temp.: - C +8 C A B SILENCER FLOW GRAPH MW SPL-F MW SCQ....7 SCQ /8". Nl/min.8. SPL-F /8" Nl/min.. 7 bar bar 7

9 SPARES SET OF GASKETS 8 Ø Ø Set of gaskets for Ø Booster (includes all gaskets numbered to 7) Set of gaskets for Ø Booster (includes all gaskets numbered to 8) 7