Structural strength test

Test Background

Quick connectors may be subjected to overpressure or accidental impacts under abnormal working conditions. Insufficient structural strength may lead to bursting and flying fragments, causing serious safety accidents.

Test Introduction

The structural strength test verifies the structural integrity of quick connectors under extreme pressure and abnormal forces through hydrostatic pressure holding tests, burst pressure tests, and separation safety tests.

Testing Objectives

Verify that the pressure resistance in the connected state is ≥3 times the working pressure

Determine the burst pressure limit and failure mode

Ensure reliable sealing at both ends in the disconnected state

Evaluate the separation safety in case of accidental pulling

Test Standards

GB/T 7939.2-2024 Test methods for quick-change connectors

ISO 18869-2017 Burst pressure test

OCP UQD structural strength requirements

Applicable Products/Fields

Suitable for UQD quick connectors, high-pressure quick connectors, pressure hot-plug connectors, etc. in liquid cooling systems.

Test Content

Hydrostatic pressure holding test: Hold the pressure at 1.5 times the working pressure for 5 minutes

Burst pressure test: Increase the pressure at a uniform speed until rupture and record the burst value

Pressure resistance test in the disconnected state: Pressurize both ends respectively to verify the sealing

Separation safety test: Control the disconnection force and leakage in case of accidental pulling

Project Advantages

High-pressure test system (maximum 20 MPa)

High-speed camera records the blasting process

Provides safety margin assessment and failure analysis

Laboratory Configuration

Hydrostatic test bench (0-20 MPa)

Burst test system (automatically records the pressure curve)

High-speed camera system

Protection device (prevent debris from splashing)

FAQ
Q: Why is a pressure test also required in the disconnected state? A: In the disconnected state, both ends of the connector are individually sealed. It is necessary to verify that it can still provide reliable sealing after disconnection when the pipeline is under pressure to prevent leakage.