Bayerteq Laboratory Ovens – Heat Reversion & High-Temp Pressure Testing (BT & WR Series)
- Precision forced air laboratory ovens engineered specifically for thermoplastic pipes and polymer testing
- Includes BT Series for longitudinal reversion testing per ISO 2505 and EN 743 (25L to 212L)
- Includes BT WR Series for elevated temperature hydrostatic pressure tests exceeding 100 °C (up to 134 °C)
- Water-resistant stainless steel inner chamber with burst protection, drainage floor, and quick-connect pressure manifold ports
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The Bayerteq Laboratory Forced Air Ovens (BT & WR Series) are specialized thermal testing systems engineered specifically for polymer research, pipe extrusion quality assurance, and certified testing laboratories. The product line addresses two critical test methodologies in the plastics piping sector: dimensional longitudinal reversion tests and elevated-temperature internal pressure tests.
Extruded thermoplastic pipes retain internal stresses from manufacturing. Exposure to elevated temperatures can cause irreversible axial shrinkage or elongation. Similarly, evaluating the long-term hydrostatic strength of high-performance polymers (such as PEX, PP-RCT, and PVDF) requires internal pressure testing at temperatures exceeding 100 °C—where conventional water baths cannot be operated due to boiling.
Core Series Overview
- Bayerteq BT Series (Heat Reversion Ovens): High-uniformity forced air circulation ovens designed in full accordance with ISO 2505 and EN 743. Features precision PID temperature control from 50 °C to 200 °C, double-layer glass observation doors, and four chamber volumes (25L, 54L, 108L, and 212L).
- Bayerteq BT WR Series (High-Temperature Pressure Testing Ovens): Purpose-built for testing plastic pipes under internal hydrostatic pressure at temperatures above 100 °C (up to 134 °C and beyond). Features a fully water-resistant stainless steel chamber, integrated burst-proof drainage floor, and top-mounted quick-connect pressure ports linked to stainless steel braided hoses.
BT Series – Longitudinal Reversion Forced Air Ovens (ISO 2505 / EN 743)
| Model | BT 25 | BT-T50 | BT-T105 | BT-T200 |
|---|---|---|---|---|
| Chamber Capacity | 25 Liters | 54 Liters | 108 Liters | 212 Liters |
| Temperature Range | 50 °C to 200 °C (Ambient: 5 °C to 40 °C) | |||
| Temperature Precision | 0.1 °C | |||
| Temperature Fluctuation | ±1.0 °C | |||
| Timer Range | 1 to 9,999 minutes | |||
| Standard Shelves | 2 pcs (Height adjustable, stainless steel wire) | |||
| Power Consumption | 650 W | 1,000 W | 1,600 W | 2,500 W |
| Internal Dimensions (W×D×H) | 298 × 290 × 274 mm | 419 × 332 × 348 mm | 550 × 348 × 550 mm | 602 × 498 × 602 mm |
| External Dimensions (W×D×H) | 580 × 554 × 455 mm | 708 × 595 × 532 mm | 830 × 620 × 735 mm | 880 × 775 × 785 mm |
| Gross Weight | 51 kg | 66 kg | 115 kg | 145 kg |
| Power Supply | Standard: 220 V ± 10%, 50/60 Hz (Optional: 110 V, 60 Hz) | |||
BT WR Series – High-Temperature Pressure Testing Ovens (>100 °C)
| Primary Test Standards | ISO 1167, ISO 15875 (PE-X), ISO 15874 (PP-RCT), ISO 22391 (PE-RT), ISO 10931 (PVDF), ASTM D1598, ASTM D2837 |
| Test Temperature Range | Ambient up to 150 °C / 200 °C (specifically engineered for 95 °C, 110 °C, 120 °C, 134 °C test regimes) |
| Chamber Construction | Heavy-gauge 304/316 stainless steel interior with fully welded water-tight seams |
| Sample Rupture Protection | Burst-resistant inner chamber walls with reinforced observation safety glass |
| Drainage Engineering | Sloped bottom drainage plate with ball valve discharge for safe water runoff during pipe bursts |
| Pressure Line Connections | Top-mounted stainless steel quick-connect feedthroughs linked via braided stainless steel hoses |
| External Control Hookup | Compatible with all standard hydrostatic pressure control cabinets and test manifolds |
Engineered for Precision & Laboratory Safety
- Durable Antibacterial Exterior: Fabricated from cold-rolled steel coated with an electrostatically applied antibacterial powder finish that resists lab wear and prevents microbial growth.
- Easy-Clean Stainless Chamber: Mirror-polished stainless steel interior features rounded internal corners that eliminate dirt traps, ensuring effortless cleaning and long-term corrosion resistance.
- Double-Layer Observation Window: High-temperature dual-pane tempered glass door with an adjustable airtight buckle lock provides full sample visibility without heat loss or external condensation.
- Advanced Microprocessor PID Controller: Clear digital LED display with 0.1 °C resolution ensures precise thermal uniformity (±1.0 °C fluctuation) and repeatable heating cycles.
- Independent Safety Interlocks: Integrated over-temperature protection circuit with audible alarm automatically disconnects heating elements if preset limits are breached.
- Specialized WR Burst-Resistant Floor: Dedicated sloped bottom plate with drainage manifold safely channels away water and steam in the event of high-pressure pipe rupture during ISO 1167 testing.
Specialized WR Series Burst & Drainage Architecture
Engineered bottom drainage floor safely evacuates pressurized water upon pipe rupture, protecting internal heating elements.
Series Selection & Configuration Guide
Choose between the standard BT Series and the specialized BT WR Series according to your laboratory's testing protocol:
1. BT Series (Heat Reversion)
Primary Application: ISO 2505 / EN 743 longitudinal thermal reversion tests.
Capacities: 25L (BT 25), 54L (BT-T50), 108L (BT-T105), 212L (BT-T200).
Key Feature: Compact footprint, double-glass observation door, PID control up to 200 °C.
2. BT WR Series (High-Temp Pressure)
Primary Application: ISO 1167 internal hydrostatic pressure tests > 100 °C.
Compatibility: PEX (up to 134 °C), PP-RCT, PE-RT, PVDF, PVC-C.
Key Feature: Water-tight welded chamber, quick-connect pressure manifold ports, sloped drainage floor.
Chamber Interiors & Accessories
BT WR interior equipped with quick-connect fluid couplers and stainless steel braided hoses for multi-sample pressure testing.
Bayerteq forced air ovens serve quality assurance departments, pipe extrusion lines, polymer resin laboratories, and accredited certification institutions worldwide.
Applicable Test Standards
- ISO 2505: Thermoplastics pipes — Longitudinal reversion — Determination methods (Method A: in liquid; Method B: in air)
- EN 743: Plastics piping and ducting systems — Thermoplastics pipes — Determination of the longitudinal reversion
- ISO 1167: Thermoplastics pipes, fittings and assemblies for the conveyance of fluids — Determination of the resistance to internal pressure
- ISO 15875: Plastics piping systems for hot and cold water installations — Crosslinked polyethylene (PE-X) (Testing at 95 °C, 110 °C, 120 °C, and 134 °C)
- ISO 15874: Plastics piping systems for hot and cold water installations — Polypropylene (PP, PP-RCT) (Testing at 95 °C and 110 °C)
- ISO 22391: Plastics piping systems for hot and cold water installations — Polyethylene of raised temperature resistance (PE-RT) (Testing up to 110 °C)
- ISO 10931: Plastics piping systems for industrial applications — Poly(vinylidene fluoride) (PVDF) (Testing at 110 °C and above)
- ISO 15494: Plastics piping systems for industrial applications — ABS, PVC-U, and chlorinated poly(vinyl chloride) (PVC-C > 100 °C)
- ISO 9080: Plastics piping and ducting systems — Determination of the long-term hydrostatic strength of thermoplastics materials by extrapolation
- ASTM D1598 & ASTM D2837: Standard test methods for time-to-failure of plastic pipe under constant internal pressure and Hydrostatic Design Basis
Target Materials & Products
- Solid-wall PVC-U, PVC-C, and high-impact PVC pipes and conduits
- PE 100, PE-RT, and crosslinked polyethylene (PEX-A, PEX-B, PEX-C) hot/cold water pipes
- Polypropylene (PP-H, PP-B, PP-R, PP-RCT) pressure plumbing lines
- Industrial fluoropolymer pipes (PVDF, ECTFE, PTFE)
- Multilayer composite pressure pipes (PEX-AL-PEX, PERT-AL-PERT)