SAE J1052 hydraulic test port fittings Standard

Date:Jun 20, 2020

SAE J1052 standard scope

SAE J1052 standard specifies dimensions, performance requirements, and test procedures for the male half of a diagnostic coupler with either a metric M14x1.5 or an inch 9/16-18 straight thread stud end.


Working pressure on hydraulic fluid system

The coupler is designed for use with a mineral based hydraulic fluid. It is used on machines specified in SAE J1116. It does not apply to the mating hydraulic quick action couplings not on the machine. Diagnostic couplings in accordance with this part of ISO may be used at a working pressure of 41.4 MPa (414 bar).


Notices of hydraulic test fittings

The permissible working pressure depends upon the materials, design, working conditions, application, etc. Conformance to the dimensional information in this part of SAE J1502 does not guarantee rated performance. Each manufacturer should perform testing according to the specification contained in this document to ensure that components comply with the performance rating.


Requirement of Test adapter fittings

Material of coupler construction is made by forging, cold forming, or machined from bar stocks.

Working pressure iw 42 Mpa.

Rated flow of 3 L/min at a maximum pressure drop of 500 kPa.

Application temperature is between 140 and =+120.

Cycles endurance impulse test shall exceed one million.

Proof test verify a minimum of a 2:1 proof to working pressure ratio.


Design of test coupler:

 SAE J1502 test coupler fittings

SAE J1052 O-ring for stud of test coupler

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