Classification of Insulation Pipes in Jinan

According to different sliding modes, the thermal insulation structure of steel-jacketed composite insulating pipe can be divided into two categories:

1. Inner sliding type: Thermal insulation structure is composed of task steel pipe, aluminium silicate, drag reduction layer, micro-porous calcium silicate, thermal insulation layer, stainless steel fastening strip, aluminium foil reflective layer, polyurethane thermal insulation layer, coated steel pipe and external anti-corrosion layer. The inner sliding insulation steel pipe is composed of steel pipe with delivery medium, composite silicate or micro-porous calcium silicate, rigid polyurethane foam plastic, coated steel pipe and FRP shell anti-corrosion maintenance layer. All kinds of tubular joint heat preservation treatment technology is mature and the quality is reliable.

2. External sliding type: thermal insulation structure consists of task steel pipe, glass wool thermal insulation layer, aluminum foil reflective layer, stainless steel fastening belt, sliding guide bracket, air thermal insulation layer, external steel pipe and external anti-corrosion layer.

Polyurethane insulating pipe has three layers from inside to outside.

Layer 1: Task Steel Tube Layer

Seamless steel pipe, spiral steel pipe and straight seam steel pipe are generally selected according to design and customer requirements. After treatment by advanced shot peening rust removal process, the steel tube rust removal grade can reach Sa2 level in GB8923-1988 specification, and the surface roughness can reach R=12.5 micron in GB6060.5-88 specification.

Second layer: polyurethane insulation layer:

High-pressure foaming machine is used to inject rigid polyurethane foam plastics into the cavity formed between the steel pipe and the outer sheath at one time, which is commonly known as "tube-in-tube foaming".

Layer 3: High Density Polyethylene Maintenance Layer:

Prefabricated black or yellow polyethylene plastic pipes with a certain wall thickness. Its function is to maintain the polyurethane insulation layer from the destruction of mechanical hard objects, and the second is anti-corrosion and waterproof.

In summary, all the above-mentioned Shandong Hipper Pipe Technology Development Co., Ltd. provides, want to know more about Jinan insulation pipe knowledge, welcome to pay attention to our website: https://www.sdhpgy.com Thank you for your support!