Piping network THE PIPING SYSTEMS

Compressor room Flexibles Isolating valves Bucled main ring Global piping network design Inlet and Main drain Air drops Adapted tank

Compressor room Global piping network design Compressor room should be : Large for an easy maintenance : Insulated and with a good aeration Flexibles will allow to : Move easily the different machines : Stop vibrations transmission Flexibles

Global piping network design Tank will be well adapted : Compressor flow in L/mn : 3 = tank volume in liters Main drain and valve : Drain can be at the tank or down the ring inlet : Will eliminate the first condensates before coming in the piping Main drain Adapted tank

Global piping network design Buckled main ring : Better flow at any point of the network : Pression is equal all along the pipe. Bucled main ring Isolating valves : Allow a ring portion isolation for maintenance or modifications Isolating valves

Global piping network design Air drops : Adapted diameter (20 mm is advised) : A good number of drops will avoid too many flexibles on the floor. Air drops

Piping network calculation Pipe diameter (mm*) Line lenght CV x 7 = M3/h KW x 10 = M3/h 1) Flow calculation : 2) Pipe lenght : Mesure the maximum lenght between the air inlet and the furthest air drop. 3) Pipe diameter : (*) SCFM x 1,7 = m3/h

The mounting 1) Wall supports : Each 3 meters 2) Main line : Don ’t forget expansion flexibles for lenght more than m 3) Drops : Blow chips before mounting the couplers or others accessories Wall supports Expansion flexibles

The Prevost ALR connection system Polyamid nut 316 L Stainless steel teeth ring The ALR system nitril O ’ring Polyamid body Polyamid pushing ring

The airdrop design The Prevost ALR drop system A curved pipe can be necessar to reach the wall Air pipe Air outlet Condensation Drilling guide

The airdrop design The Prevost ALR drop system 2 : Rotation 180° 3 : Tight the screw 1 : Drill Positioning mark

The airdrop design The Prevost ALR drop system 1/2 or 3/4 Inlet metal insert Easy mounting 1/2 outlet metal inserts Drain in option Angle : 45° lateral and 45° vertical 120 / 150 cm

The ALR system The Prevost ALR Technical Data Aluminium 6060 alloy. Density 2,7 kg / dm31) Aluminium pipe : Chromophosphatizing treatment of inside and outside surfaces 2) Surfaces treatment : Thermoplastic technopolymere compounds4) Composite connectors : Standard blue electropainting3) Coloration pipe : AISI 316 and AISI 403 stainless steel standards5) Connectors metal parts : Nitrile rubber (NBR)6) Seals material : -20 C° to +70 C°7) Temperatures : DL = 0,024 x L x DT°8) Expansion : Compressed air, water, drinking water, alimentary liquids9) Fluids transported :

The Prevost ALR standards The ALR system UNI standard 9006 / 11) Aluminium pipe : ISO 727, DIN 8063, NF T54028, KIWA 54, UNI & UNI ) Pipes and fittings : UNI 8470, UNI 84714) Valves : ISO 228 / 1, DIN 2999, UNI 338, BS 213) Cylindrical threading : AISI 316 and AISI 403 stainless steel standards5) Connectors metal parts :

The ALR system EXAMPLEOFCALCULATION

Outlet 1 ’ ’1/4 BSP Femelle

The ALR system ( 36m x 2 ) + ( 30m x 2 ) = 126m for the main ring 126m / 3 = 42 supports Step 1 : The supports

The ALR system 35 ( cv ) x 7 = 245 M3/h flow => Diameter = 40 mm Step 2 : The main ring 126m / 4 = 32 tubes Unions will be : ALR UN40 ( 30 pieces ) 126m / 2 ( Bucled loop ) = 63m

The ALR system Step 3 : The flexibles Diameter corresponding to 40mm = 1 ’ ’ Flexibles will be : FLEX FFT 34 (4 pieces ) Corresponding connectors will be : ALR PM4034 ( 8 pieces )

The ALR system Step 4 : The isolating valves Valve corresponding to 40mm = ALR VA40 ( 4 pieces )

The ALR system Step 5 : The drops Drops diameter = The most frequently 20mm The drop connector will be : ALR BP 4020 ( 8 pieces ) The drop tubes will be : ALR TU20 ( 8 pieces )

The ALR system 1) Drop connector : ALR BP4020 2) Male threaded connector : ALR PM4034 3) Wall support : AVR Y 1212P Step 5 : The drops

The ALR system Step 6 : The inlet pipe Inlet pipe diameter = 40mm The tank outlet is 1 ’ ’1/4 femelle thread

The ALR system Step 6 : The inlet pipe 1) Equal TEE connector : ALR TE40 3) Equal TEE connector : ALR TE40 4) Male threaded connector : ALR PM4034 5) Flexible : FLEX FFT42 6) Main drain valve : ALR VA40 2) Main valve : ALR VA40