Bayerteq Methylene Chloride Tester – MCT / DCMT for PVC-U Pipes
- Specialized dichloromethane resistance tester (DCMT) for assessing PVC-U pipe gelation level
- Full testing compliance with ISO 9852 and EN 580
- Available in Manual Lifting and Automatic Pneumatic Lifting configurations
- Integrated water layer vapor barrier to prevent hazardous methylene chloride fumes and protect operator health
- High-precision temperature control from 15 ± 0.5 °C to 60 °C with 0.1 °C resolution
- Heavy-gauge 2 mm AISI 304 stainless steel tank (Ø300 × 400 mm) with perforated sample basket and filter
- Standard serial PC logging interface; optional external cooling chiller unit available
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The methylene chloride tester (Model MCT Series / DCMT) manufactured by Bayerteq is an advanced testing bath engineered to evaluate the chemical resistance and gelation level of unplasticized poly(vinyl chloride) (PVC-U) pipe sections. Designed in strict compliance with international standards including ISO 9852 and EN 580, this essential quality control instrument provides plastic pipe manufacturers with a rapid, dependable method to verify proper material fusion and extrusion processing.
In PVC-U pipe manufacturing, the degree of polymer gelation directly dictates the mechanical integrity, impact resistance, and long-term hydrostatic pressure durability of the finished pipe. Insufficiently gelated PVC-U contains unfused resin grains that degrade under aggressive solvents. The Bayerteq methylene chloride tester immerses chamfered pipe specimens into dichloromethane (methylene chloride) at precisely regulated temperatures (typically 15 °C to 60 °C in standardized 5 °C increments for 30 minutes). After immersion, specimens are visually evaluated for surface attack, delamination, or blistering, confirming extrusion compliance.
Methylene Chloride Tester Safety Architecture & Gelation Analysis
Because dichloromethane generates volatile, toxic fumes, the Bayerteq MCT incorporates specialized safety and environmental engineering:
- Protective Water Layer Vapor Barrier: A specialized water barrier floating above the dense solvent prevents methylene chloride evaporation, dramatically reducing laboratory vapor concentration and safeguarding technician health.
- Dual Model Automation (Manual vs. Automatic Lifting): Offered with an ergonomic manual lift or a fully automated pneumatic lifting system (4–8 bar air supply) that submerges and extracts the sample basket automatically to eliminate direct operator exposure.
- Corrosion-Proof AISI 304 Construction: Built with robust 2 mm AISI 304 stainless steel tanks (Ø300 × 400 mm internal dimensions) and reinforced insulation to minimize heat loss and resist harsh chemical exposure.
- Precision Thermal Management: High-efficiency water circulation delivers temperature uniformity better than ±0.5 °C across a 15 °C to 60 °C range with 0.1 °C control resolution. An optional external chiller unit can be integrated for rapid cooldown cycles.
- Perforated Basket & Filtration: Features a heavy-duty stainless steel sample basket with integrated filtration to catch dislodged pipe particles and maintain solvent clarity.
Equipped with a digital micro-controller and standard serial communication interface for real-time temperature logging, this methylene chloride tester ensures complete traceability and reliable batch certification for municipal, drainage, and industrial PVC piping.
Bayerteq MCT Series – Technical Specifications
| Parameter | Specification Details |
|---|---|
| Applicable Standards | ISO 9852, EN 580 (Dichloromethane resistance test – DCMT / MCT) |
| Primary Test Application | Determination of gelation level and chemical attack resistance in unplasticized PVC (PVC-U) pipes |
| Temperature Control Range | 15 ± 0.5 °C to 60 °C |
| Temperature Resolution & Accuracy | Resolution: 0.1 °C | Accuracy: Better than ±0.5 °C from setpoint |
| Vapor Emission Protection | Integrated water layer vapor barrier to seal hazardous solvent fumes inside the tank |
| Lifting Mechanism Options | 1. Manual counterbalanced lifting system 2. Fully automatic pneumatic lifting system |
| Tank Internal Dimensions | Ø300 mm × 400 mm depth |
| Tank Material & Construction | 2 mm heavy-gauge AISI 304 stainless steel with chemical-resistant seals |
| Tank Configuration | Single-tank or dual-tank configuration (Custom sizing available upon request) |
| Sample Basket | Perforated AISI 304 stainless steel basket with integrated particle filter |
| Pneumatic Air Supply (Auto model) | 4 – 8 bar clean, dry, filtered compressed air |
| Data Communication | Standard serial RS-232 / USB output for real-time temperature logging and PC connection |
| Optional Accessories | External cooling chiller unit for accelerated bath cooling between test series |
| Electrical Power Supply | AC 220 V ± 10%, 10 A, 50/60 Hz |
Key Engineering Advantages of Bayerteq MCT
Water Layer Vapor Shield
Incorporates a protective water layer above the solvent that eliminates hazardous dichloromethane evaporation, keeping the lab atmosphere safe and compliant.
Automated Pneumatic Lifting
Pneumatic automatic sample lowering and raising eliminates manual handling of solvent-exposed baskets, maximizing operator safety and repeatability.
Rapid Gelation Quality Check
Provides a definitive, fast 30-minute qualitative verification of PVC-U resin gelation state, catching extrusion defects before mass pipe deployment.
2 mm AISI 304 Construction
Heavy-gauge stainless steel tank construction provides superior corrosion resistance against aggressive solvent chemistry and thermal cycling.
Thermal Circulation & Accuracy
High-precision water circulation system ensures bath uniformity within ±0.5 °C with high thermal efficiency and reduced energy consumption.
Integrated Filter Basket
Stainless steel sample basket equipped with internal particle filtration to prevent debris buildup and prolong solvent life.
Configurations & Ordering Options
| Configuration | Lifting System | Key Features & Inclusions |
|---|---|---|
| MCT-Manual | Manual Sample Lifting | Cost-effective, ergonomic counterbalanced lift, AISI 304 tank, water vapor barrier, serial PC logging. |
| MCT-Auto | Pneumatic Automatic Lifting | Automated sample cycle, push-button operation, maximum technician safety, requires 4–8 bar air supply. |
| Dual Tank Option | Dual Testing Baths | Two independent Ø300 × 400 mm tanks for running multi-temperature batches simultaneously. |
| Chiller Unit Option | External Water Chiller | Closed-loop auxiliary refrigeration unit to rapidly cool bath down to 15 °C between test sequences. |
Quality Standards & Industry Applications
| Standard / Test Scope | Testing Procedure & Assessment Criteria |
|---|---|
| ISO 9852 | Unplasticized poly(vinyl chloride) (PVC-U) pipes — Dichloromethane resistance at specified temperature (DCMT). Determines resistance to chemical attack and confirms optimal extrusion processing. |
| EN 580 | Plastics piping systems — Unplasticized poly(vinyl chloride) (PVC-U) pipes — Test method for the resistance to dichloromethane at a specified temperature (DCMT). |
| PVC-U Gelation Evaluation | A 30-minute immersion test where chamfered pipe specimens are inspected for swelling, delamination, or blistering. Properly gelated pipe shows zero signs of chemical attack. |
| Target Pipe Sectors | Potable water distribution pipes, agricultural irrigation piping, building drainage, industrial chemical conduits, and electrical conduit PVC-U profiles. |