Products

Pre-insulated steel pipes

The offer of pre-insulated steel pipes includes a complete range of pipes, fittings and pre-insulated fittings for the transmission of heating medium and hot utility water. Pipes are supplied in a wide range of carrier pipe diameters – in the case of a single pipe from DN 20 mm to DN 1200 mm, and in the case of a double pipe from DN 20 mm to DN 200 mm. For underground heating networks, a PEHD high-density polyethylene pipe is used as a casing pipe; for overhead heating networks, pipes are made in casing made of rolled sheets (SPIRO type). Pre-insulated pipes can be equipped with a polyurethane insulation moisture detection system.

• Pipes manufactured in accordance with PN-EN 253, PN-EN 448, PN EN 489, PN-EN 13941,

• A wide range of pipe operating temperatures up to max. + 152 ° C,

• Complex construction of pipes,

• Ready pre-insulated elements (elbows, tees, valves),

• Leak detection systems (impulse or brandes),

• Low PUR foam insulation coefficient λ = max. 0.029 (W / mK),

• Long installation life

Single pre-insulated steel pipe dn 20 – dn150

Pipes intended for transmission of heating medium and hot domestic water.

The pipes are manufactured in lengths of 6 and 12 meters. Pre-insulated pipes can be equipped with a polyurethane insulation moisture detection system. The standard solution is the impulse leak detection system. On special request, the BRANDES system, HDW system or other system can also be used, according to individual customer needs.

  • Pipes manufactured in accordance with PN-EN 253, PN-EN 448, PN EN 489, PN-EN 13941 standards
  • A wide range of pipe operating temperatures up to max. +152°C
  • Complex construction of pipes
  • Ready pre-insulated elements (elbows, tees, valves)
  • Leak detection systems (impulse or Brandes)
  • Low insulation coefficient of PUR foam λ=max. 0.029 (W/mK)
  • Long service life of the installation

Pre-insulated pipe construction

  • inner duct pipe made of steel
  • thermal insulation is made of rigid polyurethane foam, evenly filling the space between the duct pipe and the casing pipe. The vapour generating agent is cyclopentane
  • casing pipe made of high-density polyethylene PEHD
Black steel pipe DN mm 20 25 32 40 50 65 80 100 125 150
PEHD casing pipe DN 90 90 110 110 125 140 160 200 225 250
Steel pipe outer diameter mm 26,9 33,7 42,4 48,3 60,3 76,1 88,9 114,3 139,7 168,3
Commercial length m 6 6 6 ; 12 6 ; 12 6 ; 12 6 ; 12 6 ; 12 6 ; 12 6 ; 12 6 ; 12
Double black pipe (zs)/(bs) pcs. zs/bs zs/bs zs/bs zs/bs zs/bs zs/bs zs/bs zs/bs zs/bs zs/bs
Elbow 90° - black pipe (zs) / (bs) 1.00 x 1.00 m pcs. zs/bs zs/bs zs/bs zs/bs zs/bs zs/bs zs/bs zs/bs zs/bs zs/bs
Elbow 90° - black pipe (zs) / (bs) 1.00 x 2.00 m pcs. zs/bs zs/bs zs/bs zs/bs zs/bs zs/bs zs/bs zs/bs zs/bs zs/bs
Fixed point L-2 m up to DN 80, above DN 100 L-2.5 m pcs. zs/bs zs/bs zs/bs zs/bs zs/bs zs/bs zs/bs zs/bs zs/bs zs/bs
Flat tee TP (zs) / (bs) or Riser tee TW (zs) / (bs) pcs. TP/TW TP/W TP/TW TP/TW TP/TW TP/TW TP/TW TP/TW TP/TW TP/TW
Connector assembly (heat shrink sleeve, heat shrink ties, PUR foam, plugs) type NT set NT NT NT NT NT NT NT NT NT NT
Heat shrink radiation cross-linked connector NTX (glue + mastic) set NTX NTX NTX NTX NTX NTX NTX NTX NTX NTX
Pre-insulated black shut-off ball valve (zs) / (bs) with drainage and venting ZKOD set ZKOD ZKOD ZKOD ZKOD ZKOD ZKOD ZKOD ZKOD ZKOD ZKOD
Pre-insulated black shut-off ball valve (zs) / (bs) with one ZKD vent valve or one ZKO drain valve set ZKD/ZKO ZKD/ZKO ZKD/ZKO ZKD/ZKO ZKD/ZKO ZKD/ZKO ZKD/ZKO ZKD/ZKO ZKD/ZKO ZKD/ZKO
Pre-insulated black ball valve (zs) / (bs), venting ZD or drainage ZO set ZD/ZO ZD/ZO ZD/ZO ZD/ZO ZD/ZO ZD/ZO ZD/ZO ZD/ZO ZD/ZO ZD/ZO
Pre-insulated black reducing pipe Z (zs) / (bs) (one dimension difference) pcs. - Z Z Z Z Z Z Z Z Z
Passage through the wall - rubber damper P pcs. P P P P P P P P P P
Insulation termination End-Cap pcs. + + + + + + + + + +