Weather Spray And Rain Test Chamber

SPECIFICATION

1. Definitions and Test Criteria

Type

Spray Test Chamber

Rain Shower Tester

Test Purpose

Simulate high-intensity water column impact (e.g. heavy rain, sea waves, high-pressure rinsing).

Simulate natural rainfall or multi-directional splashing (e.g. light rain, medium rain, all-round drenching).

Corresponding IP rating

Mainly for IPX5 (water spray), IPX6 (intense water spray), IPX9K (high temperature and high pressure water spray).

Mainly for IPX3 (drenching), IPX4 (splashing), partially extended to IPX1-IPX2 (vertical dripping).

Core Standards

IEC 60529, ISO 20653 (IPX5/IPX6), ISO 20653 (IPX9K).

IEC 60529, GB 4208, ISO 20653 (IPX3/IPX4).



2. Device Design Comparison

Parameter

Spray test chamber

Rain shower test chamber

Water spray method

High-pressure nozzle directional spraying, water column concentration (e.g. IPX5: 6.3mm nozzle, 12.5 L/min; IPX6: 12.5mm nozzle, 100 L/min).

Pendulum pipe or nozzle array multi-angle spray (e.g. IPX3: 60 ° pendulum pipe; IPX4: 360 ° pendulum pipe), water flow dispersion.

Water pressure and flow rate

High pressure (IPX5: 30kPa, IPX6: 100kPa, IPX9K: 8-10MPa), high flow (up to 100 L/min or more).

Low pressure (atmospheric or low water pressure), lower flow rate (IPX3/IPX4: 10 L/min).

Structural features

Reinforced pressure-resistant design, high power pump, anti-splash baffle, high pressure sealing system.

Oscillating tube or rotating nozzle system, transparent viewing window, adjustable sample stage.

Testing distance

Nozzle distance from sample 2.5-3 meters (IPX5/IPX6).

Radius of the pendulum tube is typically 200-1600 mm, covering the sample surface.



3. Application Scenarios

Types

Typical Industries

Examples of products tested

Spray test chamber

Automobile, ship, military, outdoor heavy industrial equipment.

Lamps, charging piles, marine electronic equipment, engineering machinery control box (to verify the waterproofness under high-pressure water rinsing or rainstorm impact).

Rain Shower Test Chamber

Consumer electronics, home appliances, lamps, small outdoor equipment.

Smartphones, smartwatches, outdoor lamps and lanterns, security cameras (to verify the sealing under daily rain or splash environment).



4. Selection of key parameters

Spray Test Chamber

- 

Pressure range: 30kPa (IPX5) to 10MPa (IPX9K).

- 

Nozzle type: standard orifice (6.3mm, 12.5mm) or customized high temperature and high pressure nozzle.

- 

Drainage capacity: Large capacity drainage system to prevent overloading of the chamber.

Rain shower test chamber

- 

Pendulum coverage: angle (60°-360°), radius (200-1600mm).

- 

Spray uniformity: density and distribution of spray holes in accordance with IEC 60529.

- 

Extended functionality: optional drip module (IPX1/IPX2).



5. Example of operating procedure

Spray test chamber (IPX6 test)

1. 

The sample is fixed on the test bench and the nozzle distance is adjusted to 3 meters.

2. 

Start the high pressure water pump, adjust the water pressure to 100kPa, flow rate 100 L/min.

3. 

Keep spraying for 3 minutes to check whether water is inside.

Rain shower test chamber (IPX4 test)

1. 

The sample is placed in the center of the 360° pendulum tube.

2. 

Set the flow rate at 10 L/min and the pendulum tube rotates at full speed.

3. 

Test continuously for 10 minutes to evaluate all-round splash protection.



6. Maintenance and Calibration

Item

Spray Test Chamber

Rain Shower Tester

Routine Maintenance

Clean clogged nozzles, check high pressure line sealing.

Clean pendulum nozzle holes, check rotary motor lubrication.

Calibration focus

Water pressure sensor, flow meter, nozzle spray angle.

Pendulum angle, spray coverage, flow uniformity.

Water Quality Requirements

Deionized or purified water to prevent scale damage to the high pressure pump.

Filtered water is recommended to avoid clogging of spray holes.