PVC Pipe

Feature

1、UPVC Pipes for Portable water

        Standard: GB/T 10002.1-2006; ISO4422; ASTM Sch 40 & 80

2、Upvc for supply water   

        Standard:

        UPVC Pipe for Industrial Areas: GB/T4219-1996

        CPVC Pipe for Industrial Areas: Q320407 HS002-2011 

        UPVC ASTM standard pipe: ASTM D1785

        CPVC ASTM standard pipe: ASTM F441

        Size: OD20mm--OD400mm (PN10; PN16)

        Color: gray, white

        Length: 4m / 5.8m / 6m or Customized

        Advantage:High Temperature Resistance, Corrosion Resistance, Easy Installatioon

PVC Pipe

PVC Pipe: The Perfect Solution for Plumbing and Construction Needs

When installing PVC pipes, attention must be paid to operational standards, environmental adaptation, and post-installation maintenance to ensure the tightness, safety, and service life of the piping system.

I. Pre-Installation Preparation

Pipe Selection and Inspection

Choose the appropriate pipe type based on its intended use.

Inspect the pipes and fittings for any visible defects, such as cracks, dents, or bubbles. Ensure that the ends of the pipes are flat and that the fittings match the specified pipe dimensions.

Check the product markings to confirm that the pressure ratings and temperature ranges meet the installation requirements.

Environment and Tool Preparation

Avoid conducting installation work in extreme temperatures. Low temperatures can make pipes brittle and susceptible to cracking, while high temperatures can negatively affect the bonding properties of adhesives.

Prepare specialized tools, including pipe cutters, sandpaper or scrapers, tape measures, levels, and the appropriate adhesives.

II. Layout and Fixing During Installation

Pipe Routing and Slope

Ensure that drainage pipes have an adequate slope to facilitate effective drainage and prevent water accumulation.

Keep pipes away from heat sources, such as radiators and water heaters. If they must be close, insulate them adequately since UPVC pipes have poor heat resistance and may deform under prolonged heat exposure.

When passing pipes through walls or floors, use sleeves that are 1-2 sizes larger than the pipe diameter. Fill any gaps between the sleeves and pipes with fire-resistant materials, especially in damp areas like bathrooms and kitchens.

Support Bracket Installation

Install brackets every 0.8 to 1.2 meters for horizontal pipes and every 1.5 to 2 meters for vertical pipes. Ensure that brackets are positioned within 30 cm of both ends of elbows to prevent pipe displacement due to weight or water flow impact.

Place soft gaskets between the brackets and pipes to prevent direct contact with metal brackets, reducing wear caused by thermal expansion and contraction.

III. Considerations for Special Scenarios

Underground Installation

Before burying pipes, check for any damage and ensure joints are fully cured. Lay a layer of 10-15 cm of fine sand at the bottom of the trench to protect against sharp stones.

When backfilling, first cover the pipe with over 30 cm of fine soil or sand, then compact the soil in layers to prevent deformation under pressure.

Connection with Other Pipe Materials

When connecting PVC pipes to metal pipes, use dedicated transition fittings to avoid leaks caused by differing thermal expansion rates.

IV. Inspection and Maintenance

Pressure Testing

After installation, water supply pipes must undergo pressure testing. Gradually increase the pressure to 1.5 times the working pressure and maintain this pressure for 30 minutes.

Drainage pipes require a water-tightness test: block the pipe end, fill it with water, and after 24 hours, a water level drop of ≤5 cm with no joint leaks is considered acceptable.

Post-Maintenance Tips

Avoid striking pipes with hard objects to prevent cracking. Do not use highly corrosive solvents for cleaning.

Regularly check for loose joints and signs of aging, particularly in environments with significant temperature variations, where expansion joints should be inspected for proper functionality.

Summary

The core principles of PVC pipe installation are: matching specifications, tight joints, secure fixing, and environmental adaptation. Strict adherence to operational standards can effectively prevent issues like leakage and deformation, ensuring long-term stable operation of the piping system. For complex scenarios, professional construction is recommended.