ECOIN’s Manufacturing Advantages and Technical Expertise
ECOIN INSULATION focuses on every production detail to ensure perfect fit and performance. Below are our key technical highlights:
1. Uniform Wall Thickness and Diameter
Each fiberglass pipe is produced with strict control of wall thickness and inner diameter, ensuring consistent performance and an accurate fit for both iron and copper pipes.
2. Proper Longitudinal Slit for Easy Installation
The slit opening is designed wide enough for smooth opening and closing during installation. A video demonstration is available below showing the process.
3. ASJ Facing Alignment to Leave Slit Unsealed
We ensure the ASJ facing does not cover the slit area, avoiding adhesive overflow that could seal the pipe shut.
4. Matching ASJ Tape Available
ASJ tape is used to seal joints between pipe sections. Please inform our sales team if you need ASJ tape included in your quotation.
5. Fire-Resistant Facing for North America
We use flame-retardant ASJ facing — aluminum foil is non-combustible, and the white kraft paper layer is made from fire resistant paper to meet safety needs.
6. Copper Pipe vs Iron Pipe – Size Identification
Customers often specify sizes in inches without clarifying if they are copper or iron pipes. Copper pipes are smaller for the same inch size. ECOIN provides a size comparison chart to ensure correct inner diameters for every order.
| Copper Pipe Size | Iron Pipe Size | True Insulation ID | |
| (inch) | (inch) | (inch) | (mm) |
| 1/2″ ID” (5/8″ OD) | — | 0.63 | 16 |
| 3/4″ ID (7/8″ OD) | 1/2 | 0.90 | 23 |
| 1″ ID (1-1/8″ OD) | 3/4 | 1.15 | 29 |
| 1-1/4″ ID (1-3/8″ OD) | 1 | 1.4 | 36 |
| 1-1/2″ ID (1-5/8″OD) | 1 1/4 | 1.7 | 43 |
| 2″ ID (2-1/8″ OD) | 1 1/2 | 1.97 | 50 |
| — | 2 | 2.4 | 61 |
| 2″ ID (2-1/8 OD) | — | 2.125 | 54 |
| 2 1/2 | 2.91 | 74 | |
| 1/2″ ID” (5/8″ OD) | — | 0.625 | 16 |
| 3/4″ ID (7/8″ OD) | 1/2 | 0.90 | 23 |
| 1″ ID (1-1/8″ OD) | 3/4 | 1.15 | 29 |
| 1-1/4″ ID (1-3/8″ OD) | 1 | 1.40 | 36 |
| 1-1/2″ ID (1-5/8″OD) | 1 1/4 | 1.70 | 43 |
| 2″ ID (2-1/8″ OD) | 1 1/2 | 1.97 | 50 |
| — | 2 | 2.4 | 61 |
| 2 1/8 | — | 2 1/8 | 54 |
| — | 2 1/2 | 2.91 | 74 |
| 2 5/8 | — | 2.625 | 67 |
| — | 3 | 3.54 | 90 |
| 3 1/8 | — | 3.125 | 79 |
| — | 3 1/2 | 4.15 | 105 |
| — | 4 | 4.55 | 116 |
| 4 1/8 | — | 4.125 | 105 |
| — | 4 1/2 | 5.15 | 131 |
| — | 5 | 5.62 | 143 |
| — | 6 | 6.69 | 170 |
7. Standard Export Packaging
All ASJ fiberglass pipes are packed in durable cartons or plastic bag, suitable for sea or air freight, with clear labeling for easy warehouse handling.
8. Why ½” Wall Thickness Fiberglass Pipe Is Rarely Made in China
In China, fiberglass pipe production involves both machines and manual rolling. Thinner pipes require far more labor to maintain wall uniformity, making ½” wall thickness pipes extremely time-consuming. For example, while 2” pipes can fill four containers per week, ½” pipes may take up to three months for a single container.
ECOIN’s Export Experience and Quality Control
With extensive export experience to North America, ECOIN ensures every shipment meets customer expectations:
- Proper slit opening for smooth installation
- ASJ facing alignment without adhesive overflow
- Consistent wall thickness and pipe diameter
- Neat packaging with clear labels
By controlling every detail, ECOIN helps overseas clients avoid installation problems and sizing mistakes.
Applications of ECOIN ASJ Fiberglass Pipe Insulation
- HVAC duct and piping systems
- Industrial process pipelines
- Plumbing and refrigeration systems
- Chiller and boiler lines
- Thermal efficiency retrofits
Why Choose ECOIN INSULATION
- Years of export experience to North America
- Strict production and inspection standards
- Flexible customization and packaging
- Fast and responsive communication
Whether you are an importer, distributor, or project contractor, ECOIN provides stable supply and professional service for ASJ fiberglass pipe insulation.
What Is ASJ Fiberglass Pipe Insulation?
ASJ fiberglass pipe insulation is a pre-formed pipe insulation product made from inorganic glass fibers bonded with thermosetting resin, covered with an All-Service Jacket (ASJ) facing. According to Wikipedia, fiberglass is valued for its low thermal conductivity, moisture resistance, and non-combustibility — properties that make ASJ fiberglass pipe insulation ideal for mechanical and HVAC systems.
The ASJ facing (Aluminum Foil–Scrim–Kraft) acts as a vapor retarder and protects the insulation from physical damage during installation. This makes ASJ fiberglass pipe insulation a preferred choice for chilled water, hot water, steam, and refrigerant piping across commercial and industrial projects in North America.
Applications of ASJ Fiberglass Pipe Insulation
ASJ fiberglass pipe insulation is widely specified for HVAC ductwork, chilled water piping, hot water supply lines, and industrial process piping. EcoIn supplies pre-cut pipe sections that fit standard nominal pipe sizes, reducing installation time and waste on job sites. For related products, see our glass wool insulation range.
When sourcing ASJ fiberglass pipe insulation for North American projects, buyers should verify compliance with ASTM C547 and ASTM E84 flame spread requirements — both of which EcoIn products satisfy.
Contact ECOIN INSULATION
Looking for a reliable ASJ fiberglass pipe insulation supplier from China? Contact ECOIN INSULATION today for a quotation or technical consultation. Our team provides support on product selection, packing, and export logistics.
