7000cmH₂O（Centimeter water column） High-Pressure Pinnacle, Making High-End Testing Accessible——RF4408Pro Hydrostatic Head Tester！
When military-grade sealing testing requirements meet the cost-effectiveness of domestic instruments, REFOND EQUIPMENT CO., LTD. has crafted the RF4408Pro Hydrostatic Head Tester with a breakthrough positioning of "Swiss precision × domestic price," it has become a technological innovator in the field of material waterproof performance testing. A Hydrostatic Head Tester fixes the test sample in a test area with a fixed cross-sectional area, and the water at the bottom of the sample is continuously pressurized to test the sample's water pressure resistance under a certain water pressure. From deep-sea pressure resistance testing of diving suits to virus penetration protection of medical protective clothing, this device, which integrates high-pressure performance, intelligent control, and testing efficiency, is breaking the dual shackles of testing costs and technical barriers for industries such as aerospace, medical care, and textiles.
Test Standards:
AATCC 127, AATCC 208, ASTM F1670, BS ISO 13994, BS EN 20811, BS 2823, BS 3321, BS 3424-26(29A, 29C), BS 3321, BS ISO 13994, ERT120-2-02, DIN 53886, EN ISO 811, EN ISO 9073-16, FZ/T 01004, GB/T 4744, ISO 1420B, ISO 16603-B, ISO 811, JIS L1092A, JIS L1092B
 | Range Champion Wide pressure range: ultra-wide range of 10–7000 cmH₂O (covered by different models), capable of extreme testing from lightweight fabrics to heavy protective materials.
· Laboratory-grade accuracy: ±0.5% reading error plus 1 cmH₂O compensation,
to guarantee reliable and indisputable test reports.
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Data Traceability Handheld external button Allows single-hand operation by operators,
to record the breakthrough pressure of the 1st, 2nd and 3rd water droplets in real time.
Critical pressure accuracy up to 0.1%, enabling traceability of the water droplet penetration process.
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 | Dynamic Test： 5-1000 cmH₂O/min min pressurization rate, smooth pressurization Static Test： Maximum 7000 cmH₂O pressure holding test, stable pressure Fast Test： Used for preliminary assessment of an unknown sample Pore Size Test： Can test the aperture of the fabric, suitable for BS 3321
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Intelligent Control System 7-inch color touch screen + PC dual control Real-time display of pressure values,
local storage for 10 groups of data.
One-click switching between Chinese and English interfaces, free conversion of multiple units: kPa/cmH₂O/mm H₂O/mbar.
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Test Head Downward TestingAdjustable clamping force with side leakage prevention.
Stable testing for extra-thick samples, even elastic materials remain firmly fixed.
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Pre-pressurization + Test Head Clamping pressure detection function. Adaptively accommodate material deformation, with sealing performance increased by 200%.
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 | Stepless speed regulation: 5~1000 cmH₂O/min Slow testing for microporous materials — Rapid pressure testing for blood penetration, all achievable with one instrument. |
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Intelligent Burst Warning Automatically freeze data and trigger audible & visual alarm the moment the sample fails. |  |
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 | Intelligent Management IoT Seamlessly link REFOND Arachno IoT System and laboratory LIMS System, digitally connect data links to simplify laboratory data archiving process. |
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Test Scope Waterproof fabrics, coated fabrics, wetsuits, composite materials, etc.
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Ordering Information
RF4408Pro Hydrostatic Head Tester RF4408/1 10cm² Test Head RF4408/2 19.63cm² Test Head RF4408/3 26cm² Test Head RF4408/4 28cm² Test Head RF4408/5 Test Head Seal Ring RF4408/6 Pore Size Test Head（BS 3321） RF4408/7 ISO16603 Test Head （ASTM F1670,BS ISO 13994, ISO 16630） RF4408/8 PC Software
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