Watson-Marlow MR-Series - Manual (Page 34)

Revision 1.4 / August 2013 Visit our website at www.masosine.com 34
Seal Options
3. Double Lip Seal with Flush
This seal arrangement uses two lip seals and a
flush mediato seal product into the MasoSine
Pump. Both lip sealsincorporate a stainless
steel support ring and snap ringenabling the
assembly to withstand product and
flushpressures up to 150 psi.
Figure 20 shows a
list of parts andan accompanying cross section
drawing which makes up the double lip seal
with flush assembly.
Figure 20 – Double Lip Seal with Flush
Item Description
503 Double Lip Sealwith Seal Housing
510 Lip Seal (2)
374 PO-Insert
520 Support Ring (2)
525 Snap Ring (2) 532
528 Seal Flush O-Ring (2)
530 Lip Seal Shaft Sleeve
4. Double O-Ring Seal with Flush
This seal arrangement uses two o-rings and a
flushmedia to seal product into the MasoSine
Pump. This type ofseal can be used only when
product and flush pressuresdo not exceed 100 psi
and the shaft speed does notexceed 3000 rpm.
Figure 21 shows a list of parts and anaccompanying
cross section drawing which makes upthe o-ring
seal
assembly.
Figure 21 – Double O-Ring Seal with Flush
Item Description
505 Double O-Ring Seal with Flush Housing
513 Dynamic Radidal O-Ring (2)
374 PO-Insert
528 Seal Flush O-Ring (2)
532 Oring Seal Shaft Sleeve
374
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