“Manufacturer: ALLWEILER GmbH,Germany. Type: SNF 80 ER36E6.9-W33-TOL.2-3.1 B Serial No. : 9025135 ALLWEILER According to “”SPECIFICATION OF PUMPS”” Manual, Con. No.: MM-21, DWG.No. S-46-01″ MECHNICAL SEAL ALLWEILER.