タイトルまたは説明

ERW/LSAW：Ф**-Ф**0mm，length: 6m.
SSAW：Ф**9mm-Ф***0mm， length:*2m.
SMLS: *0.*****0mm * 2mm**0mm（1/*- *0）
WT: 1.*4mm *0mm (SCH**-SCH**0)

Length: 5.8M; 6M; *1.8 M, *2M or as customers requirement.
 

According to the design and customer requirements, seamless steel pipe, LSAW pipe and SSAW pipe can be the best choice for the carrier pipe of pre-insulated steel pipe. The material can be:

API 5L Gr. B X*2 X*6 X*2 X*6 X*0.

ASTM A**6/*3 Gr. A /Gr. B / Gr. C

APL 5CT:J*5, K*5, N*0, L*0, C*0, T*5, P**0

DIN ***9: St *7.0, St *4.0, St *2.0

DIN ****5: St*5.8, St*5.8, *7Mn4, *7Mn5, *5Mn5, *5Mo3, *3CrMo**0

EN****0: S**5JO, S**5JR, S**5JR, P**5TR1, S**5JRH…

(Other material manufactured by Customers Demand)

Rigid polyurethane foam is injected into the cavity between the steel tube and the outer layer by high-pressure foaming machine. Polyurethane foam has good mechanical and adiabatic properties and can withstand high temperature to **0℃. It can withstand **0℃ through modification or combination with other heat insulation materials. The material can be : For keeping cold(***0℃∼**0℃) Polyurethane foam; For keeping warm (**0 ℃∼**0℃) Polyurethane foam+ Silica (mineral wool)

Prefabricated black or yellow polyethylene plastic pipe can protect the polyurethane insulation layer from mechanical damage, anti-corrosion, waterproof. The material can be HDPE PIPE (for underground/ above ground) or Glass fiber reinforced plastics pipe.

Standards:

EN/DIN **3: District heating pipes Pre-insulated bonded pipe systems for directly buried hot water networks Pipe assembly of steel service pipe, polyurethane thermal insulation and outer casing of polyethylene;

EN **8/**8/**9 District heating pipes Pre-insulated bonded pipe systems for directly buried hot water networks Fitting assemblies of steel service pipes, polyurethane thermal insulation and outer casing of polyethylene;