Product Specifications: DN15 (D20), DN20 (D25), DN25 (D32), DN32 (D40), DN40 (D5...
Product Specifications: DN15 (D20), DN20 (D25), DN25 (D32), DN32 (D40), DN40 (D5...
Product Specifications: DN15 (D20), DN20 (D25), DN25 (D32), DN32 (D40), DN40 (D5...
Product Specifications: DN15 (D20), DN20 (D25), DN25 (D32), DN32 (D40), DN40 (D5...
Product Specifications: DN15 (D20), DN20 (D25), DN25 (D32), DN32 (D40), DN40 (D5...
A 1-inch PVC screw plug costs less than a coffee, yet the wrong one can split the threaded boss on a filter housing and take a line down for a shift. On a dosing skid or a water-treatment header, that small threaded part is often the last thing specified and the first thing to leak. The specification sheet matters far...
View MoreA 110 mm PVC flange on a brine line starts weeping three weeks after commissioning. The bolts feel tight, the pipe is sound, and the gasket matched the size on the drawing. In most cases like this, the gasket itself is not faulty — the selection is. An EPDM pad went onto a stream carrying oil mist, a full-face gasket ...
View MoreWhen a plastic flange weeps at the bolt circle, the flange body is usually the last component to blame. On most PPH, PPN and PVDF lines the leak starts with the gasket, the bolt load or the alignment of the two faces, not with the moulded part. That order of causes matters, because it tells you what to specify before ...
View MoreWhat are the connection methods for PVDF fittings?
1. Butt Fusion: Using a specialized butt fusion machine, the pipe ends are heated and melted at a specified temperature, then aligned and pressed together. After cooling, a seamless, leak-free connection is formed. This is the most common connection method for PVDF pipes and is suitable for high-pressure and clean systems.
2. Socket Fusion: The pipe is inserted into a preheated socket sleeve. After melting, it is quickly inserted and cooled, resulting in a strong connection that is easy to assemble quickly on-site.
3. Electrofusion: Using electrofusion fittings with built-in resistance wires, heat is generated by applying electricity to achieve fusion. This is suitable for situations where it is difficult to use a butt fusion machine on-site, especially common in long pipe sections or bends.
4. Flange Connection: A mechanical seal is achieved using flanges, bolts, and gaskets. This facilitates maintenance and replacement and is commonly used in large pipelines or systems requiring frequent maintenance. 5. Threaded/Compression Connections
Threaded connections allow for quick assembly via threaded engagement. Compression connections (such as ferrules) utilize the interlocking of a sleeve and pipe to form a seal, suitable for small-diameter or low-pressure systems.
What are the common specifications and dimensions of PVDF Fittings?
1. Pipe Diameter and Wall Thickness (Nominal Diameter DN)
Common outer diameter range: 20mm~110mm, wall thickness from 2.3mm to 12.3mm, meeting various industrial needs from small to medium diameters.
2. Standard Size Series
ISO10931 (SDR21S10): Applicable to Butt Fusion and Socket Fusion fittings, covering the entire range of DN20-110.
ISO15494 (SDR11): Provides lightweight solutions with thinner wall thicknesses for welded fittings at higher pressure levels.
3. Special Specifications
Heat shrink tubing sizes: Customizable from 3/64in (≈1.2mm) to 1in (≈25.4mm) to meet micro-conduit or electrical insulation needs.
Sheet and Rod Stock: Sheet thickness 1mm~50mm, standard sizes 1200mm×2400mm or 2000mm×3000mm; Rod diameter 5mm~110mm, weight can be calculated in kg/m.
4. Pressure Ratings
Available in PN10 and PN16 pressure ratings, suitable for high-requirement industries such as chemical, pharmaceutical, and aerospace.
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Mobile: +86 137 7009 5258
Tel: +86-515-85479999
Email: [email protected]
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