FAQ: TAC MD-18 Heat-Resistant Duct (100 x 5m) - TOTAKU INDUSTRIES 21114-100-05:

1. What is the TAC MD-18 heat-resistant duct (100 x 5m) by TOTAKU INDUSTRIES?

The TAC MD-18 is a flexible, heat-resistant air duct featuring a reinforcing core of aluminum foil, glass cloth, and galvanized steel sheet. It’s designed for intake/exhaust in air-conditioning, hot-air generation, and industrial ventilation systems.

2. What materials and construction make up this duct?

- Inner layer: aluminum foil for heat reflection

- Reinforcement: high-strength glass cloth

- Outer layer: galvanized steel sheet for corrosion resistance and structural support

3. What is the operating temperature range?

The duct safely operates from -20°C up to +180°C without degradation of its structural or fire-retardant properties.

4. What pressure rating and fire-resistance classification does it have?

- Allowable pressure at room temperature: 0.007 MPa

- Flameproof grade: Grade 1 (highest flame-resistance level)

5. What are its key dimensions?

- Nominal diameter: 100 mm

- Inner diameter (ID): 102.5 mm

- Outer diameter (OD): 106 mm

- Length: 5m

6. What is the minimum allowable bending radius?

The minimum bending radius is 210mm. Bending tighter than this may permanently deform the duct or compromise airflow.

7. Can the duct be stretched or compressed for storage and installation?

Yes. TAC MD-18 can be freely extended and contracted to facilitate cutting, storage, and transport. However, avoid repeated stretching and contracting to prevent material fatigue.

8. In which applications is this duct typically used?

- HVAC air intake and exhaust

- Hot-air generation and circulation equipment

- Industrial ovens, dryers, and boilers

- Any system requiring heat-resistant and flame-retardant airflow ducts

9. How should the duct be cut and installed?

- Extend or contract the duct to a manageable length and mark the cut line.

- Use a fine-toothed saw or utility knife for a clean cut - avoid tearing the glass cloth layer.

- Bend the duct no tighter than its 210mm minimum radius, then secure with stainless-steel clamps or duct collars.

- After installation, run a pressure and leak test under working temperature to confirm airtightness and structural integrity.

10. What is the expected lifespan and maintenance routine?

- Lifespan depends on how often the duct is stretched/compressed and environmental conditions.

- Inspect periodically for tears, punctures, or corrosion on the outer steel layer - patch or replace sections as needed.

- Clean the aluminum cloth surface with a dry cloth; avoid harsh chemicals that could degrade the glass fiber.

11. Where is the product manufactured, and what certifications does it carry?

- Country of origin: Japan

- Flameproof grade: Grade 1, compliant with RoHS directives

12. What is the price and ordering process?

- Standard list price: USD 337.84

- Order process:

+ Request a quote

+ Receive quote via email

+ Issue proforma invoice

+ Payment

+ Delivery and final invoice

13. How long is the delivery lead time and is there a minimum order quantity?

Please contact QTE Technologies (qtetech.com/en)

14. Where can I obtain technical documentation and CAD files?

Please contact QTE Technologies (qtetech.com/en)

15. Who should I contact for the best pricing and technical support?

Please contact QTE Technologies (qtetech.com/en)

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