| DN (mm) | Outer Diameter (mm) | Wall Thickness (1.0 MPa S10) | Wall Thickness (1.6 MPa S6.3) |
|---|---|---|---|
| 15 | 20 | — | 2.0 |
| 20 | 25 | — | 2.0 |
| 25 | 32 | — | 2.4 |
| 32 | 40 | — | 3.0 |
| 40 | 50 | — | 3.7 |
| 50 | 65 | 3.0 | 4.7 |
| 65 | 80 | 3.6 | 5.6 |
| 80 | 90 | 4.3 | 6.7 |
| 100 | 110 | 5.3 | 8.1 |
| 125 | 140 | 6.7 | 10.3 |
| 150 | 160 | 7.7 | 11.8 |
| 200 | 225 | 10.8 | 16.6 |
| 250 | 280 | 13.4 | — |
| 300 | 315 | 15.0 | — |
| 350 | 355 | 16.9 | — |
| 400 | 400 | 19.1 | — |
| 450 | 450 | 21.4 | — |
| 500 | 500 | 23.8 | — |
| 600 | 630 | 24.2 | — |
Note: FRP/UPVC and FRP/CPVC; UPVC and CPVC are usually supplied in lengths of 4 meters per piece. According to ISO international standards for industrial pipes, it is recommended to use FRP/UPVC or FRP/CPVC composite pipes for DN450 and above.
| DN | 90° Elbow | Coupling | Tee | 45° Elbow | Flange | Van Stone Flange | End Cap | Blind Flange | Cross | Union | Male Coupling | Y Tee |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| DN15 | ◎ | ◎ | ◎ | ◎ | ◎ | — | ◎ | ◎ | — | ◎ | — | — |
| DN20 | ◎ | ◎ | ◎ | ◎ | ◎ | — | ◎ | ◎ | — | ◎ | — | — |
| DN25 | ◎ | ◎ | ◎ | ◎ | ◎ | ◎ | ◎ | ◎ | — | ◎ | ◎ | — |
| DN32 | ◎ | ◎ | ◎ | ◎ | ◎ | ◎ | ◎ | ◎ | — | ◎ | ◎ | — |
| DN40 | ◎ | ◎ | ◎ | ◎ | ◎ | ◎ | ◎ | ◎ | — | ◎ | ◎ | — |
| DN50 | ◎ | ◎ | ◎ | ◎ | ◎ | ◎ | ◎ | ◎ | ◎ | ◎ | ◎ | ◎ |
| DN65 | ◎ | ◎ | ◎ | ◎ | ◎ | ◎ | ◎ | ◎ | ◎ | ◎ | — | — |
| DN80 | ◎ | ◎ | ◎ | ◎ | ◎ | ◎ | ◎ | ◎ | ◎ | ◎ | — | — |
| DN100 | ◎ | ◎ | ◎ | ◎ | ◎ | ◎ | ◎ | ◎ | ◎ | ◎ | — | — |
| DN125 | ◎ | ◎ | ◎ | ◎ | ◎ | ◎ | ◎ | ◎ | ◎ | ◎ | — | — |
| DN150 | ◎ | ◎ | ◎ | ◎ | ◎ | ◎ | ◎ | ◎ | — | — | — | — |
| DN200 | ◎ | ◎ | ◎ | ◎ | ◎ | ◎ | ◎ | ◎ | — | — | — | — |
| DN250 | ◎ | ◎ | ◎ | ◎ | ◎ | ◎ | ◎ | ◎ | — | — | — | — |
| DN300 | ◎ | ◎ | ◎ | ◎ | ◎ | ◎ | ◎ | ◎ | — | — | — | — |
| DN350 | ◎ | ◎ | ◎ | ◎ | ◎ | — | ◎ | ◎ | — | — | — | — |
| DN400 | ◎ | ◎ | ○ | ○ | — | ◎ | ◎ | ◎ | — | — | — | — |
| DN450 | ◎ | ○ | ○ | ○ | — | ◎ | ◎ | ◎ | — | — | — | — |
| DN500 | ◎ | ○ | ○ | ○ | — | ◎ | ◎ | ◎ | — | — | — | — |
| DN600 | ○ | ○ | ○ | ○ | — | ○ | ○ | ○ | — | — | — | — |
| DN700 | ○ | ○ | ○ | ○ | — | ○ | ○ | ○ | — | — | — | — |
Glass fiber reinforced plastic composite pipe standards:
HG-3731 CPVC pipe fittings standard number: GB/T 18998.3-2003
UPVC pipe fittings standard number: GB/T 4219.2-2008
Flange connection standard: HG20592 PN10 flange
○ Secondary molding
◎ One-time molding
Step 1: Order and Design
Confirm customer requirements such as diameter, pressure rating, length, and standards (ISO, ASTM, DIN). Design specifications and production parameters are defined for the upvc pipe to ensure suitability for application.
Step 2: Raw Material Preparation & Molding
High-quality PVC resin, stabilizers, and additives are mixed and fed into the extruder. The material is heated and extruded through a die to form the upvc pipe, followed by vacuum sizing and cooling to maintain precise dimensions.
Step 3: Machining
The extruded upvc pipe is cut to required lengths, and additional machining such as chamfering, threading, or socket forming is carried out depending on application needs.
Step 4: Assembly
If required, fittings such as couplings or sockets are attached to the upvc pipe. Components are checked for compatibility and proper alignment to ensure reliable installation performance.
Step 5: Testing & Quality Assurance
Each batch of upvc pipe undergoes strict testing including pressure resistance, impact strength, dimensional accuracy, and visual inspection to meet quality standards.
Step 6: Finishing, Packaging and Shipment
The upvc pipe is cleaned, marked with specifications, and packaged securely to prevent damage during transportation, then arranged for shipment according to customer requirements.
Due to their resistance to acids and alkalis, corrosion resistance, rust-free properties, resistance to scaling, and excellent insulation performance, UPVC plastic pipes are widely used in various fields: in municipal water supply projects to ensure water quality safety and prevent secondary contamination; in water-saving irrigation systems to significantly improve water use efficiency and promote agricultural productivity; and in construction piping and cable protection conduits. Furthermore, in sectors such as chemical processing, pharmaceuticals, mineral brine transportation, and electrical engineering, UPVC pipes play a vital role due to their stable performance.
These valves are widely used in:
Oil and Gas
Chemical Processing
Power Plants
Water Treatment
Metallurgy and Mining
Agriculture and Irrigation
Superior Quality
Our valves are produced from high-grade materials and subjected to strict quality inspections to guarantee dependable performance in challenging industrial environments.
Advanced Technology
With cutting-edge CNC machining systems and high-precision manufacturing equipment, we ensure valves are made with outstanding accuracy and uniformity.
Competitive Pricing
By streamlining production processes and sourcing materials in bulk, we provide premium-quality valves at competitive prices while maintaining excellent standards.
Expert Support
Our skilled technical team offers full support from product selection through after-sales service, helping ensure the best valve performance for your application.
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