Connection To The Pneumatic System - OMAC B Series Operation And Maintenance Manual

Rev.4 del 01/2011 O.M.A.C. s.r.l.
a) with reference to the drawing to the side and the dimensions of the threaded joints, shown in the table in section 1.3.9, identify the fl ushing connection
points on the LDPU as well as the types of fi ttings to use.
fl ushing method with "disposable" fl uid
b) connection of pumping
chamber cover heating/
cooling;
ATTENTION
The Customer, on the basis of the table in section 1.3.9 must identify the proper kind of fi ttings to be used to connect the hydraulic unit. Any errors can
generate leaks of fl ushing/cooling/heating fl uid not attributable to O.M.A.C. s.r.l.
To start assembly activities, the pipes used to compose the fl ushing/cooling/heating circuit must have fi ttings free to rotate at their ends in order to screw
onto the fl ushing chamber and cooling/heating chambers.
ATTENTION
Check that the ends of the fi ttings are free to rotate. If they are fi xed to the pipe it will no longer be possible to screw them on and one must provide new
pipes of the same kind.
On the basis of the diagrams above, proceed with assembly, taking care to tighten the fi ttings.
Switch on the fl ushing unit and the cooling / heating unit that belong to the Customer in order to check there are no leaks of fl uid, i.e. check the operations
above have been carried out properly.
ATTENTION
The Customer must ensure that the fl ushing unit is always started before starting the "B series lobe displacement Pump Unit".
In case of brief or extended machine down times during the production period, in which the process fl uid remains in contact with the internal parts of the
pumping body (e.g. transfers of vinyl glue in industrial use), the fl ushing unit must remain in constant operation, to not jeopardise the operation of the
pumping body sealing parts.
If one should fi nd leaks, switch off the fl ushing unit and repeat the operations described above.

3.5.3 Connection to the pneumatic system

Connection to the pneumatic system assumes that the Customer provides connection to a pneumatic lubricated compressed air unit: the capacity and
pressure (bar) values of this unit are indicated in the attached technical sheet.
ATTENTION
The technical sheet carries the pressure and capacity values the LDPU needs to operate properly.
ATTENTION
Before going any further, ensure to comply with the indications of section 3.3.1 of this chapter.
In order to connect the LDPU to the pneumatic distribution network in safety conditions, observe and perform the following operations in sequence:
• close the valve the LDPU will be connected to;
• connect the light blue pipes with threaded fi ttings to the compressed air distribution unit;
• close the connection between the pipe and unit securely;
• connect the light blue pipes with the threaded fi ttings to the LDPU;
• close the connection between the pipe and the LDPU securely;
Via Giovanni Falcone, 8 42048 Rubiera (RE) - Italy
E-mail:info@omacpompe.com SitoWeb:www.omacpompe.com
fl ushing method with fl uid recycle
O.M.A.C. s.r.l.
Tel.0522/629371 - 629923 Fax 0522/628980
c) connection of pumping
body heating/cooling;
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Chap.3 - pag.