Contamination Detection Equipment for Pumps

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The tester typically consists of a hydraulic test circuit where the pump(s) and valve(s) under evaluation are installed. A reservoir holds a volume of test fluid (hydraulic oil) which is intentionally contaminated with a specific type and concentration of solid particles. The pump circulates this contaminated fluid, and the system includes a loading mechanism (e.g., restrictors, actuators) to operate the pump and cycle the valve(s) under realistic pressure, flow, and temperature conditions.

Standards

(1) ISO 4406:2021 — Hydraulic fluid power — Fluids — Method for coding the level of contamination by solid particles.

(2) ISO 18413:2017 — Hydraulic fluid power — Filters — Vocabulary and commercial specifications.

(3) ISO 10707:2019 — Petroleum products and lubricants — Determination of demulsibility characteristics.

(4) ISO 6403:2018 — Hydraulic fluid power — Filter elements — Verification of collapse/burst pressure.

(5) ISO 10372:2016 — Hydraulic fluid power — Filter elements — Method for measuring filtration performance.

(6) NFPA T2.6.1 — Standard for Hydraulic Power Units.

(7) GB/T 16907-1997 — Hydraulic systems — General technical specifications.

(8) GB/T 14039-2002 — Hydraulic transmission — Solid particle contamination code for oil.

(9) JB/T 7857-2006 — Evaluation method for contamination sensitivity of hydraulic valves.

(10) ISO 12103-A3 — Test dust standard for simulating solid particle contamination.

Features

Provides a comprehensive evaluation of both hydraulic pump and valve performance and wear resistance in a single test setup under contaminated conditions.

Simulates the interaction of contaminated fluid with key components in a hydraulic circuit.

Essential for selecting pumps and valves that can reliably operate in hydraulic systems with expected levels of fluid contamination.

Helps validate component designs and materials specifically for resistance to wear and degradation caused by particles.

Provides objective, quantitative data on the long-term effects of contamination on pump and valve performance.

Supports research and development efforts aimed at improving the robustness and lifespan of hydraulic components.

Technical Parameters

No.	Technical Parameters	Specifications
1	Test medium	Hydraulic oil
2	Temperature of medium	10 ~ 80℃
3	Test dust	ISO 12103-A3
4	Test pressure range	0.5 ~ 6MPa
5	Test flow	1 ~ 20L/min
6	Purification cleanliness	-/12/10 (GB/T
7	Test tank volume	40L
8	Execution standard	JB/T 7857-2006
9	Equipment power supply	AC380V / 50Hz
10	Power of the whole machine	5.5kW

Accessoriess

1. Core Functional Components:

Hydraulic test circuit assembly (including piping and connectors)

Reservoir (for holding contaminated hydraulic oil)

Mounting and fixing device for the pump/valve under test

Solid particulate contamination additive assembly (matching standard dust such as ISO 12103-A3)

Loading mechanism (e.g., throttle, actuator, simulating actual working conditions)

2. Monitoring and Control Components:

Pressure gauge (monitoring system pressure)

Flow monitoring device

Temperature control module (adjusting medium temperature)

Control panel (setting test parameters)

3. Auxiliary Components:

Seals (e.g., O-rings, gaskets)

Pipeline cleaning tools

Instruction manual, certificate of conformity

Applications

Evaluating the wear resistance and durability of hydraulic pumps and valves simultaneously under contaminated fluid conditions.

Determining the impact of fluid contamination on the performance characteristics (efficiency, leakage, control accuracy, response time) of pumps and valves over time.

Validating the contamination tolerance of pump and valve designs, materials, and manufacturing processes.

Benchmarking the contamination resistance of different pump and valve models or manufacturers.

Research and development of more robust hydraulic components for use in contaminated environments.

Assessing the effectiveness of design modifications in improving contamination tolerance.

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