NQ corners, in conjunction with PQ profiles, form the foundation for building robust and airtight rectangular ventilation duct frames. Available in various versions, such as NQ-20 (standard for up to 800 mm side), NQ-20L (extended for larger cross-sections), and NQ-20K (short for ducts with sides below 150 mm), as well as NQ-30 and NQ-40 for larger installations, they ensure flexibility and precision in HVAC system assembly.
| Parameter | Value |
|---|---|
| Standard type | NQ-20 (for ducts up to 800 mm side) |
| Extended type | NQ-20L (for larger dimensions) |
| Short type | NQ-20K (for ducts with sides below 150 mm) |
| Types for large ducts | NQ-30, NQ-40 |
| Material NQ-C | Galvanized steel sheet |
| Material NQ-K | Acid-resistant stainless steel 1.4301/304 |
| Material NQ-K-...-316L | Acid-resistant stainless steel 1.4404/316L with molybdenum |
| Material NQ-A | Aluminum sheet AW-1050A H24 |
