ASTM D2665 uPVC DWV Pipe

Application Scenarios

1. Urban Wastewater Drainage

ASTM D2665 uPVC DWV Pipe is designed for drainage, waste, and wastewater systems in residential communities, commercial buildings, and urban infrastructure. Its smooth inner surface supports efficient gravity-flow drainage and helps reduce the buildup of sediment and debris. With excellent resistance to corrosion, moisture, and chemicals, uPVC provides a durable and low-maintenance solution for urban wastewater drainage and underground sewer applications.

2. Vent Pipe

ASTM D2665 uPVC Pipe is widely used as a vent pipe in DWV systems to maintain proper air circulation and pressure balance within building drainage networks. Proper venting helps protect drainage traps and supports the smooth discharge of wastewater. The pipe's lightweight construction, smooth interior, and corrosion resistance make it suitable for residential, commercial, and industrial building vent systems.

3. Agricultural Irrigation

ASTM D2665 uPVC Pipe can be used for non-pressure agricultural water conveyance and drainage applications where gravity flow is required. It can help transport or discharge water in farms, greenhouses, and agricultural facilities. Its lightweight design simplifies handling and installation, while its resistance to corrosion and moisture provides reliable performance in outdoor and humid agricultural environments.

4. Aquaculture Water Drainage

ASTM D2665 uPVC DWV Pipe is suitable for aquaculture drainage, overflow, and gravity-flow water discharge systems in fish farms, hatcheries, and aquatic farming facilities. Its smooth internal surface allows efficient water drainage and helps minimize the accumulation of sediment and biological deposits. The corrosion-resistant uPVC construction provides reliable performance in continuously wet and humid environments.

Key Advantages of UPVC Pipes

1. Lightweight

Unit weight is only 1/6 that of cast iron pipes, facilitating easy handling and transport.

UPVC density: 1,350–1,550 kg/m³ vs. ductile iron: ~7,050 kg/m³. A DN400 UPVC pipe requires only 4 workers for transport and installation, with each joint completed in ~10 minutes. Ductile iron pipe (Class K9) of the same diameter is virtually uninstallable without heavy machinery—particularly advantageous in rugged terrain or remote areas. Transport costs reduced by 50–66%.

2. Low Flow Resistance

Smooth inner wall prevents scaling; friction loss is over 30% lower than cast iron pipes.

Roughness coefficient: n=0.009, substantially lower than metallic pipes. Under identical diameter and flow conditions, head loss per unit length is significantly reduced, lowering pump head requirements and energy consumption. Flow capacity increased by 30% compared with cast iron pipes of the same diameter.

3. High Mechanical Strength

Excellent pressure rating, impact resistance, and tensile strength. Low modulus of elasticity provides superior seismic performance.

As a flexible pipe,the low modulus also dampens water hammer and pressure surge effects. Widely applied in pressure classes ranging from 0.2 to 2.5 MPa.

4. Corrosion Resistance

Outstanding resistance to inorganic acids, alkalis, salts, and chemicals; unaffected by moisture or soil pH.

No anti-corrosion coating required. Maintenance costs are only 30% of cast iron pipes. Ideal for industrial wastewater discharge and highly corrosive environments such as seawater aquaculture.

5. Easy Installation

Flexible EPDM rubber ring joints or solvent cement joints enable rapid assembly.

Correctly installed joints are leak-proof. Systems can be commissioned immediately upon successful pressure testing, significantly shortening construction schedules.

6. Long Service Life

Designed service life of 50+ years under normal operating pressure.

Excellent aging resistance, immune to bacterial and biological attack, ensuring long-term, reliable water transmission.

7. Non-Toxic and Hygienic

Manufactured with lead-free, environmentally friendly calcium-zinc stabilizers, fully compliant with national drinking water hygiene standards.

UPVC is nutritionally inert to microorganisms. The smooth bore inhibits sludge accumulation and tuberculation, preventing secondary contamination. Jianlong UPVC pipes have achieved full lead-free production.

8. Cost-Effective

Lower material, transport, and installation costs, combined with extended service life, deliver significant economic benefits.

Total project costs are 30–40% lower than cast iron systems. Maintenance costs are only 30% of cast iron, and labor costs are substantially reduced.

Install

Packaging and Delivery

Quality control and testing

hydrostatic strength

The hydrostatic strength of the pipe should meet the requirements of Table 8.

6.6Pipe socket hydrostatic strength

The hydrostatic strength of the pipe socket is only applicable to sockets with elastic sealing rings and should meet the requirements of Table 9.

6.7Hygiene requirements

6.7.1 The vinyl chloride monomer content of pipes used for conveying drinking water shall not exceed 1.0 μg.g/g6.7.2 The sanitary requirements for pipes used to transport drinking water shall comply with... combineGB/T 17219According to the regulations.

FAQ
1.Do UPVC pipes buried underground require anti-corrosion treatment?

UPVC pipes offer excellent chemical corrosion resistance and are unaffected by moisture or soil pH levels, thus requiring no anti-corrosion treatment. However, care must be taken to remove stones from the trench bottom and lay a sand bed of at least 15 cm before pipe installation to prevent damage from sharp objects.

2.What is the service life of UPVC water supply pipes?

Under normal operating pressure and applicable temperature ranges, the design service life is 50 years. Actual service life may vary depending on installation quality, operating pressure, temperature, and other factors.

3.What are the main causes of leakage in solvent cement joints?

Inferior or expired cementing materials

Improperly cleaned joint surfaces (presence of moisture, oil, or dust)

Uneven or insufficient application of solvent cement

Failure to chamfer the pipe spigot end

Incomplete insertion — spigot not pushed to the bottom mark

Moving the pipe before adequate curing time

Construction at excessively low temperatures (below -10°C is not recommended)

4.What should be noted regarding trenching and backfilling?

Stones at the trench bottom must be removed and a sand bed of at least 15 cm laid before pipe installation. Pipes must not be laid directly on rocks.

During backfilling, large bricks or stones must not be thrown directly onto the pipes.

Backfill material should be compacted in accordance with specifications.