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TYPE APPROVAL CERTIFICATE No. MAC328921XG/001
This is to certify that the product identified below is in compliance with the regulations herewith specified.
Description Type Applicant
Manufacturer Place of manufacture
Reference standards Reference documents
Sterntube seals PRIME - PRIMAIR AEGIR-MARINE BV MOLENVLIET 34 3961 MV WIJK BIJ DUURSTEDE NETHERLANDS AEGIR-Marine - Production BV MOLENVLIET 34 3961 MV WIJK BIJ DUURSTEDE NETHERLANDS Part C, Chapter 1, Section 7 of RINA Rules for the Classification of Ships RINA TYPE APPROVAL SYSTEM
Issued in HAMBURG on January 5, 2022. This Certificate is valid unti Jtry 4, 2027
This certificate consists of this page and 1 enclosure
RINA Services S.p.A. Giuseppe Russo
RINA Services S.p.A. Via Corsica, 12 - 16128 Genova Tel +39 010 53851 Fax
TYPE APPROVAL CERTIFICATE No. MAC328921XG/001 Enclosure - Page 1 of 1 PRIME - PRIMAIR
Reference Documents Technical drawings approved with no. HMMC-7359 and Test Reports filed with HMMC7465 on 27 Sept 2016 Fields of application
PRIME and PRIMAIR type Standard & Secure Internal and External Oil lubricated stern tube seals. Standard type Outer and inner sterntube seals ; composed of three lip-seals on the outer seal, and two lip-seals on the inner seal. Secure type Outer and inner sterntube seals ; composed of four lip-seals on the outer seal, and two lip-seals on the inner seal. PRIME type options: - the aft seal could be fitted with an Aft Protection System. - the aft seal could be fitted with a spacer ring (split or non-split execution) The PRIMAIR type aft seal is fitted with an air regulated pressure chamber and a drain collection unit to avoid external oil leakage Materials / Components See Material Specification of approved drawings. Technical Characteristics PRIME type: Seal Size 125 to 1250 for propeller shaft diameters: 115-1150 mm. PRIMAIR type: Seal Size 450 to 1250 for propeller shaft diameters: 426-1150 mm. Acceptance conditions For each application an information letter, with indicated the type of seal used, is to be sent to RINA Plan Approval Office in charge of relevant plan approval activities. The installation on board is to be made in accordance with manufacturer instructions. The acceptance of the above product on board ships and other units classed with RINA is subject to the satisfactory outcome of testing as per RINA Rules. The present Type Approval Certificate annuls and replaces the previous one MAC127116XG/001.
HAMBURG January 5, 2022
RINA Services S.p.A. Via Corsica, 12 - 16128 Genova Tel +39 010 53851 Fax