ISO-15171-2 Historical Revision Information
Connections for fluid power and general use -- Hydraulic couplings for diagnostic purposes -- Part 2: Coupling with M16 x 2 end for connection under pressure

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This part of ISO 15171 specifies dimensions, performance requirements and test procedures for a diagnostic coupling with an M14 × 1,5 straight stud end to mate with an ISO 6149-1 port and an M16 × 2 connection end that can be connected under pressure without tools to a maximum pressure of 40 MPa [400 bar1)]. The dimensions of the coupling counterpart are specified. The coupling is designed for use in hydraulic systems that use mineral oil.

Couplings in accordance with this part of ISO 15171 may be used at a maximum working pressure of 63 MPa (630 bar). The permissible working pressure depends upon the materials, design, working conditions, application, etc.

Conformance to the dimensional information in this part of ISO 15171 does not guarantee rated performance. Each manufacturer should perform testing according to the specification contained in this part of ISO 15171 to assure that components comply with the performance rating.

1) 1 bar = 0,1 MPa = 105 Pa 1 Pa = 1 N/m2


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Document Number

ISO 15171-2:2000

Revision Level




Publication Date

Aug. 1, 2000

Committee Number

ISO TC 131/SC 4/WG 4