Hebei Ruijie Pipe Industry Co., Ltd. is one of the most reliable manufacturers and suppliers of pvc 3d four-way fitting in China. With abundant experience, we warmly welcome you to buy high quality pvc 3d four-way fitting for sale here from our factory. Also, pricelist and free sample are available.
The PVC 3D four-way fitting is a drainage component manufactured from one-piece PVC-U injection molding. Its four ports are arranged in a spatial orthogonal layout, simultaneously connecting vertical risers and horizontal branch pipes. It replaces the "flat four-way + elbow" combination, reducing 2 to 3 joints and lowering leakage risk. Widely used in drainage, sewage, and rainwater systems for residential and commercial buildings.
Product Advantages
1. Fewer joints: One-piece molding connects risers and branches directly, eliminating elbow adapters and reducing leakage points.
2. Reliable structure: Seamless one-piece molding with uniform wall thickness; impact- and external-pressure resistant, suitable for buried and in-wall concealed installation.
3. Smooth drainage: Mirror-smooth interior walls with arc transitions at the intersection zone, ensuring flow without eddies or obstruction and resisting clogs.
4. Corrosion and weather resistance: Resists acid, alkali, and scaling; weather-resistant versions available for outdoor use with a long service life.
5. Low cost: No specialized equipment required; material and installation costs are far below those of cast iron and stainless steel.
Installation Guide
Preparation: Verify that the size matches the pipe; check for cracks or deformation; prepare adhesive, sandpaper, and other tools; clean the mating surfaces.
Steps:
1. Roughen the pipe exterior and socket interior with sandpaper; clean and dry.
2. Apply adhesive evenly with no gaps, using a moderate amount.
3. Insert vertically and quickly to the stop, holding for a few seconds.
4. Wipe off excess adhesive and allow to cure.
5. Proceed with concealed work only after a passing water-tightness test.
Notes: Install above 5°C; never force or twist pipes; keep risers coaxial; drilling and threading are prohibited.
FAQ
Q: What is the difference between a 3D four-way and a flat four-way?
A: A 3D four-way has spatially orthogonal ports connecting risers and horizontal pipes, while a flat four-way has coplanar ports for in-plane diversion only. A 3D four-way is required wherever a riser meets a horizontal branch.
Q: Can it be used in a water supply system?
A: Not recommended. Drainage-grade PVC-U has low pressure resistance and does not meet drinking water hygiene standards. Use potable-water-grade PVC-U or PPR fittings instead.
Q: How do I select a reducing type?
A: Follow the principle of a larger main riser and smaller branch pipes. For example, with a 110mm main riser and 75mm branch, select a 110x75mm reducing fitting.
Q: How long after bonding can water be introduced?
A: Cure per the adhesive manufacturer's instructions: at least 2 hours at room temperature, with longer times for low temperatures or thick-wall conditions. Do not apply stress before curing is complete.
Q: Can it be installed underground?
A: Yes. Prepare a proper pipe-bedding layer to avoid direct pressure from sharp stones, and backfill in compacted layers to prevent localized stress cracking.
Storage Guidelines
• Store in a ventilated, dry, shaded warehouse away from direct sunlight.
• Temperature -5°C to 40°C; humidity at or below 80%.
• Store sorted by size, stacked no higher than 2 meters; no dropping or heavy stacking.
• Shelf life under proper storage should not exceed 2 years; inspect before use if exceeded.
After-Sales Service
• Warranty: Quality issues are eligible for return or replacement under standardized installation and normal use.
• Technical support: Selection matching, installation guidance, and layout advice for volume customers.
• Samples: Product samples and test reports provided.
• Customization: Color, logo printing, custom mold opening for special sizes, and custom packaging.
• Response: Prompt handling of inquiries, orders, and after-sales issues.
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