Steam insulation pipe

Steam Insulation Pipe

Product Overview:
Steam insulation pipe is a specialized pipeline product designed for the safe and efficient transportation of high-temperature steam over long distances. It features a multilayer structure that includes a durable steel carrier pipe, high-performance thermal insulation, and an outer protective casing, ensuring minimal heat loss and excellent long-term performance under harsh operating conditions.

Structure Composition:

1. Inner Pipe (Carrier Pipe): Made of seamless or welded steel pipe (e.g., Q235B, Q345B, 20#), responsible for transporting steam.

2. Insulation Layer: Typically made from rigid polyurethane foam or high-density glass wool, offering superior thermal insulation and energy efficiency.

3. Outer Protective Casing: Commonly made from high-density polyethylene (HDPE) or spiral-welded steel pipe, protecting the insulation and inner pipe from mechanical damage, moisture, and corrosion.

Product Features:

• Excellent thermal insulation: Low heat loss rate, high energy efficiency

• Strong resistance to high temperatures and pressure

• Long service life: Typically over 30 years under proper use

• Corrosion-resistant outer jacket for underground applications

• Factory pre-fabricated for easy and quick installation

• Optional leak detection system for real-time monitoring

Technical Specifications:

• Operating temperature: Up to 350°C or higher (depending on insulation type)

• Pipe diameter: DN50–DN1200 or customized

• Pressure rating: PN1.6–PN6.4 MPa

• Insulation thickness: 30–100 mm

• Standard compliance: GB/T 29047, CJ/T 114, SY/T 0420

Applications:

• Urban central heating systems

• Industrial steam transmission pipelines

• Petrochemical and power plant piping

• Paper, textile, and food processing industries

• Thermal pipelines across bridges, tunnels, and buried installations

Advantages:

• Energy-efficient solution for high-temperature steam distribution

• Reduces heat loss, saving operational costs

• Resists soil pressure and environmental stress when buried

• Factory-prepared and pre-insulated, reducing on-site labor

• Customizable in terms of materials, thickness, and diameter

Quality Control:
Each steam insulation pipe undergoes stringent inspection for:

• Weld quality (NDT for steel pipe)

• Insulation thickness and uniformity

• Adhesion and density of insulation material

• Outer jacket sealing and water-tightness

• Compliance with national and international standards