QsanTec Dualcoil 1/4" x 3/8" – 30 m, Double insulated copper pipe for heat pumps (R32/R410A)

QsanTec Dualcoil is a high‑quality, factory‑insulated dual copper tube set designed for air‑to‑air and air‑to‑water heat pumps, air conditioning systems, R32 and R410A refrigerants, and professional HVAC installations. The set includes 1/4" (6.35 mm) and 3/8" (9.52 mm) soft copper tubes with durable, flexible PE foam insulation that ensures high mechanical strength, minimal heat loss and long service life. The copper tubes are made from 99.90% Cu annealed copper and comply with EN12735‑1 and JIS H 3300 C1220T standards. The insulation meets EN13501‑1 fire safety requirements (B‑s3,d2 or BLs1d0).

Key advantages: factory‑insulated dual tube set for fast and clean installation; high‑purity soft copper; chemically cross‑linked PE insulation with 30x foam density; low thermal conductivity of 0.043 W/m·K; wide temperature range –40 °C to +120 °C; very low water absorption 0.01 g per 100 cm²; vapour permeability 10 ng/m²·s·Pa; metre marking for precise installation; suitable for R32 and R410A refrigerants.

Technical information: 1/4" tube – outer diameter 6.35 mm, wall thickness 0.8 mm, copper purity ≥ 99.90%, phosphorus 0.015–0.040%, tensile strength 205 N/mm², elongation ≥ 40%. 3/8" tube – outer diameter 9.52 mm, wall thickness 0.8 mm, copper purity ≥ 99.90%, tensile strength 205 N/mm², elongation ≥ 40%.

Insulation data: chemically cross‑linked PE foam, thermal conductivity 0.043 W/m·K, tensile strength 24.5 N/cm², water absorption 0.01 g per 100 cm², vapour permeability 10 ng/m²·s·Pa, temperature range –40 °C to +120 °C, fire classification EN13501‑1 B‑s3,d2 or BLs1d0.

Dimensions and packaging: 30 m roll, dual tube set 1/4" + 3/8", strong cardboard box, metre marking. Suitable for heat pump installers, AC systems, R32/R410A lines and professional HVAC work.