
| DN | 90° Elbow | Coupling | Tee | 45° Elbow | Flange | End Cap | Blind Flange | Cross* | Union | Male Coupling* |
|---|---|---|---|---|---|---|---|---|---|---|
| DN15 | ○ | ○ | ○ | ○ | ○ | ○ | ○ | — | ○ | ○ |
| DN20 | ○ | ○ | ○ | ○ | ○ | ○ | ○ | — | ○ | ○ |
| DN25 | ○ | ○ | ○ | ○ | ○ | ○ | ○ | — | ○ | ○ |
| DN32 | ○ | ○ | ○ | ○ | ○ | ○ | ○ | — | ○ | ○ |
| DN40 | ○ | ○ | ○ | ○ | ○ | ○ | ○ | — | ○ | ○ |
| DN50 | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ○ |
| DN65 | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ○ |
| DN80 | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ○ |
| DN100 | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ○ |
| DN125 | ○ | ○ | ○ | ○ | ○ | — | ○ | — | — | — |
| DN150 | ○ | ○ | ○ | ○ | ○ | — | ○ | — | — | — |
| DN200 | ○ | ○ | ○ | ○ | ○ | — | ○ | — | — | — |
Important Rule (from the image)
DN ≤ 100 → Both socket weld and hot melt fittings are available
DN ≥ 125 → Only socket weld fittings available
Items marked with * → Only available as hot melt fittings
Step 1: Order and Design
We design solutions based on customer requirements (dimensions, pressure ratings, application scenarios, etc.), confirm the specifications of the PVDF pipe (outer diameter, wall thickness, length), and the connection method (welding or flanging). At the same time, we develop production drawings and process flows.

Step 2: Raw Material Preparation & Molding
We select high-purity PVDF raw materials, dry them, and then produce PVDF pipes using an extrusion molding process. Under strictly controlled temperature and pressure conditions, we ensure the pipes possess excellent corrosion resistance and mechanical properties.

Step 3: Machining
The extruded PVDF pipes undergo cutting, end trimming, and necessary dimensional finishing to ensure length accuracy and joint flatness, meeting the requirements for subsequent installation and welding.

Step 4: Assembly
Based on project requirements, PVDF pipes are assembled with matching fittings (such as couplings and flanges) or pre-welded to ensure the overall system’s leak-tightness and ease of installation.

Step 5: Testing & Quality Assurance
Each batch of PVDF pipes undergoes rigorous testing, including visual inspection, dimensional inspection, pressure testing, and corrosion resistance testing, to ensure the products comply with relevant standards (such as ISO or ASTM).

Step 6: Finishing, Packaging and Shipment
Clean qualified products to prevent contamination; use protective packaging (such as sealing and dust-proof bags) to safeguard the pipes and prevent damage during transport, and ship according to order specifications.

It is primarily used in fields such as microelectronics, metallurgy, chemical engineering, pharmaceuticals, and the nuclear industry.
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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