Bayerteq Impulse Test Machines & Water Hammer Testers – IMT / WH Series
- Advanced pressure impulse & water hammer fatigue testing systems for hydraulic hoses, tubing, and thermoplastic pipes
- Full compliance with ISO 6803, ISO 6802, SAE J343, EN 13618, ISO 10508, and EN 12295
- Includes IMT 1.25H (up to 80 MPa with flex testing), IMT HF 3.0H (rapid surges to 3.3 Hz), and WH 3.5M (6-station water hammer)
- Industrial PC & PLC closed-loop control with real-time pressure-time curve logging and automatic burst shutdown
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The Bayerteq Impulse Test Machines and Water Hammer Testers (IMT / WH Series) are specialized laboratory testing benches engineered to evaluate the fatigue life, pulse endurance, and structural integrity of hydraulic hose assemblies, automotive fluid lines, aerospace tubing, and plastic/composite piping systems under cyclic pressure conditions.
In real-world applications, fluid transfer conduits are subjected to continuous pressure surges, hydraulic shocks, and mechanical vibrations. The Bayerteq IMT / WH series replicates these rigorous service environments with precision closed-loop pressure control, programmable waveforms, and integrated temperature conditioning in full accordance with leading international standards.
Core Machine Series Overview
- IMT 1.25H Hydraulic Impulse Tester: Ultra-high pressure impulse testing up to 80 MPa with optional dynamic flexing (half-omega / omega fixtures) for automotive and industrial hydraulic hoses per ISO 6803, ISO 6802, and SAE J343.
- IMT HF 3.0H / 3.3H High-Frequency Pulse Test Bench: High-frequency pulse test bench engineered specifically for rapid pressure surge testing (0 to 3.5 MPa in ≤ 0.15 s) for flexible drinking water hoses per EN 13618:2017.
- WH 3.5M Dynamic Water Hammer Impact Tester: 6-station dynamic internal pressure fatigue tester subjecting plastic (PP-R, PE, PEX) and multilayer composite pipes to 10,000 alternating cyclic shocks per ISO 10508 and EN 12295.
| Parameter | IMT 1.25H (Hydraulic) | IMT HF 3.0H (High Frequency) | WH 3.5M (Water Hammer) |
|---|---|---|---|
| Primary Standards | ISO 6803, ISO 6802, SAE J343, ISO 11425, ISO 6772 | EN 13618:2017-03 | ISO 10508, EN 12295, ASTM F1281, ASTM F1282 |
| Operating Pressure Range | Up to 80 MPa (Accuracy ±0.1 MPa) | 0 to (3.5 ± 0.5) MPa | 0.05 to 3.5 MPa (Accuracy ±0.05 MPa) |
| Impulse / Cycle Frequency | 0.5 – 1.25 Hz (adjustable) | Up to 3.3 Hz (Rise time ≤ 0.15 s) | 0.5 – 2.0 Hz (30 ± 5 cycles/min) |
| Mechanical Flexing / Vibration | Vibration: 10–50 Hz | Bending: 0.5–3.0 Hz | N/A (Rigid mounting manifold) | N/A (Manifold fixture) |
| Pressure Waveforms | Square, trapezoidal, triangular, sine | Rapid steep pressure surge / pulse | Alternating dynamic cyclic shock |
| Test Medium & Temp | Hydraulic oil / brake fluid (Ambient to ±150 °C) | Water / hydraulic fluid with heat exchanger | Water (Ambient to hot water conditions) |
| Sample Capacity / Stations | 2 – 8 hose assemblies | Multi-station flexible hose manifold | 6 independent test stations (customizable) |
| Specimen Size | Hydraulic & automotive hose lines | Flexible connecting hose assemblies | Pipes & fittings up to DN 63 mm |
| Cycle Life / Range | > 10,000,000 cycles | Long-term endurance fatigue logging | 0 – 10,000 continuous shock cycles |
| Control Architecture | Industrial PC with automated logging & shutdown | Industrial PC + PLC with interlocked safety | Microcomputer control with LED nixie display |
Key System Features & Capabilities
- Precision Waveform Generation: Advanced closed-loop electro-hydraulic servo control generates square, trapezoidal, triangular, and aerospace-specific peak impulse profiles with high fidelity.
- Flex-Impulse Dynamic Fixtures: Model IMT 1.25H features motorized flexing frames supporting straight (no flex per ISO 6803) and half-omega / omega bending modes per ISO 6802 and SAE J1405.
- Thermal Conditioning Chambers: Optional insulated test chambers enable testing under elevated fluid and ambient temperatures up to +150 °C to simulate harsh under-hood automotive duty cycles.
- Rapid Pressure Rise Times: Model IMT HF 3.0H generates steep pressure surges (0 to 3.5 MPa in ≤ 0.15 s) meeting the demanding 3.3 Hz requirement of EN 13618:2017.
- 6-Station Water Hammer Manifold: Model WH 3.5M allows simultaneous testing of up to 6 pipe specimens up to 63 mm with minimal energy loss (< 0.25%).
- Automated Safety & Unmanned Operation: Continuous software monitoring of switch states, temperature, and pressure; automatic system lockout and shutdown upon specimen rupture, burst, or pressure drop.
Industrial PC & PLC Architecture
Bayerteq impulse testers incorporate an industrial-grade PC and PLC automation architecture providing real-time data acquisition, pressure-time curve plotting, cycle counting, and automatic test report generation.
Real-time pressure trace monitoring and parameter configuration interface on Bayerteq IMT software.
Series Model Breakdown
Bayerteq impulse and pressure fatigue testing systems are categorized into three specialized configurations:
1. IMT 1.25H – Hydraulic Impulse Tester
Capacity: Up to 80 MPa (0.5–1.25 Hz)
Focus: Hydraulic & automotive hose assemblies.
Key Feature: Straight and half-omega / omega bending fixtures with optional high-temperature fluid circulation up to +150 °C.
2. IMT HF 3.0H – High-Frequency Pulse Bench
Capacity: 0 to 3.5 MPa at 3.3 Hz (≤0.15 s rise time)
Focus: Sanitary & drinking water flexible hoses.
Key Feature: Engineered specifically for EN 13618:2017 compliance with PLC safety lockout and unmanned test execution.
3. WH 3.5M – Water Hammer Tester
Capacity: 0.05 to 3.5 MPa (10,000 cycles)
Focus: Plastic & composite pipes up to 63 mm.
Key Feature: 6 independent test stations with alternating pressure shock generation conforming to ISO 10508 and EN 12295.
Internal Machine Engineering
Compact hydraulic station, heat exchange module, and proportional valves inside the Bayerteq IMT bench.
The Bayerteq IMT and WH series serve quality control laboratories, third-party certification bodies, and manufacturing plants across the automotive, aerospace, hydraulics, and building infrastructure sectors.
Applicable International Standards
- ISO 6803:2017: Rubber or plastics hoses and hose assemblies — Hydraulic-pressure impulse test without flexing
- ISO 6802:2018: Rubber and plastics hoses and hose assemblies with wire reinforcements — Hydraulic impulse test with flexing
- SAE J343: Tests and Procedures for SAE 100R Series Hydraulic Hose and Hose Assemblies
- SAE J1405: Optional Procedures for Hydraulic Hose Assemblies — Flex-impulse and high-temperature endurance
- ISO 11425:2018: Rubber hoses and hose assemblies for automobile power-steering systems — Specification
- ISO 6772:2012: Aerospace — Fluid systems — Impulse testing of hydraulic hose, tubing and fitting assemblies
- GB/T 5568: Rubber and plastics hoses and hose assemblies — Hydraulic-pressure impulse test without flexing
- EN 13618:2017: Flexible hose assemblies in drinking water installations — Functional requirements and test methods
- ISO 10508: Plastics piping systems for hot and cold water installations
- EN 12295: Plastics piping systems — Test method for the resistance of thermoplastics piping systems to cyclic pressure shocks (Water hammer)
- ASTM F1281 / ASTM F1282 / ASTM F1335: Crosslinked Polyethylene/Aluminum (PEX-AL-PEX) and PE-AL-PE composite pressure pipes
Target Products & Materials
- High-pressure wire-braided and spiral-wound hydraulic hoses
- Automotive power steering, air conditioning, and hydraulic brake lines
- Aerospace fuel, hydraulic, and environmental control system tubing
- Sanitary flexible connecting hoses for residential drinking water
- Thermoplastic pressure pipes (PP-R, PP-H, PE-RT, PEX) and multilayer composite pipes up to 63 mm