PVC Drainage Pipe

Hualin is one of the leading manufacturers of PVC drainage pipes in the industry. We are committed to providing high-quality PVC drainage pipe products to meet your business needs. Send us your design requirements now!

Use Hualin PVC Drainage Pipe to Ensure Your Customers’ Satisfaction.

HualinPVC drainage pipes are made of high-performance polyvinyl chloride, possessing excellent material properties. All types of polycarbonate pipes we produce have obtained CE certification.

PVC Drainage Pipe

Hualin’s PVC pipes are made from PVC material, ensuring superior quality and a longer service life than ordinary pipes. Our PVC products are not only comfortable to use but also have excellent chemical resistance.They have good electrical insulation but poor impact resistance.

PVC-U Drainage Pipe

For indoor and outdoor drainage pipeline projects in industrial and civil buildings, the temperature of continuously discharged domestic sewage shall not exceed 40℃, and the temperature of instantaneously discharged sewage shall not exceed 80℃.

PVC-U Roof Drainage Gutters

A roof drainage system mainly consists of components such as eaves gutters, rainwater hoppers, and drain pipes. Eaves gutters (also known as rainwater channels) are horizontal, trough-shaped drainage channels located under the eaves.

Main Features of PVC Drainage Pipes

Lightweight and easy to handle – Low density, facilitating handling, loading, unloading, and construction.

Excellent corrosion resistance – Exhibits excellent resistance to acids, alkalis, and corrosion.

High mechanical strength – The pipe exhibits good pressure resistance, impact resistance, and tensile strength.

Easy construction – Pipeline connections are quick and easy to install, resulting in low construction costs.

Low cost – Low price, convenient transportation and construction, and long service life contribute to an overall low cost.

Applications of PVC Drainage Pipe

Municipal Engineering Drainage

Along both sides of urban roads, storm drains are typically installed. PVC drainage pipes connect these drains to the municipal stormwater drainage network, quickly draining rainwater from the road surface and preventing flooding that could disrupt traffic.

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Residential Building Drainage

PVC drainage pipes are also indispensable in residential buildings, shopping malls, office buildings, and other commercial buildings. Large amounts of oily wastewater need to be discharged through PVC drainage pipes, which then discharge the grease-separated wastewater into the municipal sewage network.

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Industrial Building Drainage

PVC drainage pipes are selected based on the properties of the wastewater, using appropriate materials and specifications to discharge different types of wastewater. For example, in chemical workshops, PVC pipes must have corrosion resistance.

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Hualin Pipe Technology: Your Leading PVC Drainage Pipe Manufacturer

Hualin and Juntong are both Chinese manufacturers specializing in pipes and rainwater harvesting modules. We are committed to providing you with one-stop solutions for plastic processing and rainwater harvesting modules.

As a renowned PVC pipe manufacturer, we possess the comprehensive capability to produce world-class PVC products to meet your business needs.

Please feel free to nous contacter with any questions; we will respond promptly.

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FAQ

How to install PVC drainage pipes?

Installing PVC drain pipes can be done quickly and efficiently by following these steps with careful attention:

Preparation Materials and Tools: Prepare PVC drain pipes of sufficient length and appropriate diameter, fittings (such as elbows and tees), PVC glue, a saw, a measuring tape, a pencil, and sandpaper.

Layout Planning: Based on drainage needs and installation locations, use a pencil and measuring tape to plan the pipe routing and positions on the wall or floor, determining the locations of each fitting.

Pipe Cutting Cut the PVC drain pipe to the planned length using a saw, ensuring a clean cut perpendicular to the pipe axis. After cutting, sand down the burrs to smooth the cut, ensuring a tight fit with the fittings during installation.
Applying Glue and Connection Apply PVC glue evenly to the inner wall of the fittings and the outer wall of the pipe. Apply quickly as the glue dries rapidly.

After applying the adhesive, immediately insert the pipe into the fitting and rotate it slightly to distribute the adhesive evenly and ensure a tight connection. Connect each pipe and fitting in this manner.

Secure the Pipes: Use pipe clamps to secure the installed PVC drain pipes to the wall or floor. The spacing between the clamps should be appropriate, generally determined by the pipe diameter, to prevent the pipes from shaking or shifting during use.

Inspection and Testing: After installation, carefully check all connections for tightness, uneven adhesive application, or improper pipe connections.
Next, conduct a water flow test. Turn on the faucet and observe whether the drainage is smooth and whether there are any leaks. If there are leaks, locate the leak immediately and reapply adhesive to the connection.

What are the bonding methods for PVC drainage pipes?

I. Core Method: Solvent Bonding (Essential, applicable to most PVC-U drainage pipes)
This is the most common and reliable bonding method for PVC drainage pipes. The operation steps are clear, and the key is “cleaning, drying, applying glue, butt joint, and curing,” each step is indispensable.
Required Materials and Tools
Special Consumables: PVC-U drainage pipe-specific glue (must match the pipe specifications, such as ordinary pipe/thickened pipe, to avoid using the wrong glue), PVC pipe cleaner (optional, enhances bonding effect);
Tools: Measuring tape, pipe cutter (or fine-toothed saw), chamfering tool (or sandpaper), cotton cloth/dry cloth, gloves, brush (included with glue or special brush, brush width matched to pipe diameter).
Detailed Operating Procedures
Pipe Cutting and Chamfering: Cut the pipe to the required length using a pipe cutter (recommended for a clean cut) or a fine-toothed saw. After cutting, use a chamfering tool or sandpaper to smooth the inner and outer edges of the pipe ends (remove burrs, chamfer at a 45° angle) to avoid sharp edges scratching the inner wall of the fittings and affecting the seal.
Crucial: The cut must be perpendicular to the pipe axis; it cannot be skewed, otherwise leakage is likely after connection.
Cleaning and Drying: Use a cotton cloth dampened with PVC cleaner (or water) to wipe the outer wall of the pipe insertion end and the inner wall of the fitting socket to remove oil, dust, moisture, and oxide layer (oxide layer can cause weak adhesion).
After wiping, the pipe must be completely dry (no moisture, no residue). Moisture will impair the dissolving effect of the adhesive, leading to bonding failure.
** Trial Insertion and Positioning: Before applying adhesive, insert the pipe into the fitting socket to test the insertion depth (generally, the insertion depth is 2/3 of the fitting socket length, or align with the scale lines on the fitting). Confirm that it can be inserted smoothly without looseness to avoid misalignment after applying adhesive.
Even Adhesive Application: Wearing gloves, use a brush to apply a sufficient amount of PVC-specific adhesive. First, apply it evenly to the inner wall of the fitting socket (covering the entire circumference, especially the bottom of the socket). Then, apply it to the outer wall of the pipe insertion end (again, covering the entire circumference; the coating thickness should be moderate, enough to cover the surface without dripping).
Note: Do not apply too little adhesive (the bonding surface will not be fully saturated, resulting in poor adhesion), nor too much adhesive (excess adhesive will clog the pipe or create burrs after curing, affecting drainage). Quick Connection and Fixing: Immediately after applying the adhesive, insert the pipe into the fitting socket in one go (aligning with the depth used for the initial insertion). During insertion, gently rotate the pipe 1/4 turn (to ensure even adhesive distribution and avoid areas without adhesive), but do not pull or rotate it after insertion.
After insertion, fix the pipe and fitting together by hand or with clamps for 30-60 seconds (initial curing, to prevent detachment). Do not apply excessive pressure during fixing to prevent pipe deformation.
Curing and Maintenance:
Initial Curing: Within 30 minutes of connection, avoid moving the pipe or applying external force, as the adhesive is not fully cured at this time, and stress can easily cause the joint to crack.
Complete Curing: At room temperature (20-25℃), small-diameter pipes (≤110mm) require 2-4 hours of curing, and large-diameter pipes (≥160mm) require 8-24 hours of curing. Do not pressure test with water during the curing period (the adhesive will dissolve in water before curing, rendering it ineffective). 3. Key Precautions
Specific Adhesive Required: Do not use silicone sealant, AB glue, or other similar adhesives as substitutes for PVC-specific adhesive. The former cannot dissolve PVC, leading to easy detachment and leakage after bonding.
Environmental Requirements: The operating temperature must be between 5 and 40°C. Low temperatures (<5°C) will prolong curing time, while high temperatures (>40°C) will cause the adhesive to evaporate rapidly, resulting in insufficient bonding time after application.
Socket and Pipe Matching: PVC-U pipes and fittings of the same specification and material must be used (e.g., DN50 pipe with DN50 fittings). Gaps that are too large or too small will affect the bonding effect (the gap is generally 0.1~0.2mm of the pipe’s outer diameter).
Repair Prohibited: If the joint is misaligned after applying adhesive, do not forcibly pry it open. The pipe must be cut and the process repeated. Adhesive-covered joints cannot be repaired a second time. II. Auxiliary Reinforcement Methods (Only used as a supplement to solvent bonding, not for standalone use)
These methods enhance the sealing and tensile strength of the joint, especially suitable for large-diameter pipes (≥200mm), outdoor exposed pipes, or vibrating environments. They must be used in conjunction with solvent bonding.
Bonding + Rubber Ring Auxiliary Sealing
Operation: First, complete the butt joint and curing of the pipe and fitting using solvent bonding. Then, place a dedicated PVC pipe sealing rubber ring (matching the pipe diameter) on the outside of the joint, or pre-embed a rubber ring inside the fitting socket (some dedicated fittings come with one). Then apply adhesive and join the pipe.
Advantages: Double sealing, vibration resistance, resistance to minor deformation, reduces the risk of leakage due to pipe settlement. Commonly used for outdoor drainage pipes or long-distance pipe laying.
Adhesive Bonding + Flange Fixing (Suitable for large-diameter pipes or scenarios requiring disassembly)
Operation: First, use solvent to bond and fix the PVC flange (dedicated) to the pipe. When connecting, place a rubber gasket between the two flanges, and then tighten the flanges with bolts.
Advantages: The adhesive ensures a seal, the flange enhances tensile strength, and it allows for subsequent disassembly and maintenance (ordinary solvent bonding is one-time use and cannot be disassembled). Suitable for large-diameter pipes above DN315mm, or scenarios requiring maintenance such as sewage treatment plants and industrial pipelines.
Adhesive Bonding + Tape Wrapping (Emergency or Temporary Reinforcement)
Operation: After the solvent bonding has cured, wrap the entire circumference of the joint with PVC-specific waterproof tape (or self-adhesive rubber tape) 3-5 times. Pull the tape taut while wrapping to ensure it adheres to the pipe surface.
Suitable Scenarios: Temporary repair of minor leaks at joints (not a long-term solution), or protection of outdoor pipe joints from UV aging (to prevent long-term exposure and cracking of the adhesive).

How to prevent PVC drain pipes from clogging?

Develop Good Daily Habits

Be Cautious with Food Waste Disposal: When washing dishes and vegetables in the kitchen, don’t pour leftover food and grease directly into the sink. Used cooking oil, for example, solidifies when cooled, easily adhering to the inner walls of pipes and accumulating over time, eventually clogging them. Collect food waste in a trash can first, and store grease in a dedicated container; discard it together after it solidifies.

Clean Bathroom Hair Regularly: Hair shed during showers is a common culprit for clogged bathroom drains. Install a hair filter on the drain and clean the filter regularly to prevent hair from entering the pipes.

Use Toilet Paper Moderately: When using toilet paper in the bathroom, don’t flush too much at once. Although toilet paper is generally water-soluble, flushing in large quantities can still cause buildup in pipe bends, leading to blockages.

Perform Regular Maintenance

Pipe Cleaning is Essential: Regularly clean PVC drain pipes with a pipe cleaner. Following the cleaning agent’s instructions, pour an appropriate amount of cleaning agent into the drain outlet, then add a certain amount of warm water. Let the cleaning agent remain in the pipe for a while to dissolve the dirt and debris inside the pipe. Finally, rinse thoroughly with plenty of clean water.

Check Drainage Speed: Check the drainage speed of each drain outlet periodically. If the drainage speed is noticeably slow, it may indicate a minor blockage in the pipe. Take immediate measures to clear the blockage and prevent it from worsening.

Design and Install Pipes Properly:

Proper Slope Design: When installing PVC drain pipes, ensure the pipes have a certain slope. This allows water to flow more smoothly and reduces the possibility of debris accumulating in the pipes. Generally, the slope of the drain pipe should meet the requirements of relevant building codes.
Select Appropriate Pipe Diameter: Choose pipes of appropriate diameter based on different drainage needs. For example, the diameter of the drain pipe under the kitchen sink should not be too small to meet the daily drainage volume requirements; the diameter of the bathroom drain riser should also be determined based on the number of sanitary fixtures and the drainage volume.

Installation of inspection and cleanout ports: Properly placed inspection and cleanout ports in the drainage system facilitate future inspection and cleaning of the pipes. When blockages or other problems occur, these openings can be used for unblocking.