CPVC End Cap
A CPVC Cap is a type of pipe fitting made from Chlorinated Polyvinyl Chloride (CPVC) that is used to close or seal the end of a CPVC pipe in a piping system. It fits over the outside of the pipe and permanently blocks the flow of fluids, preventing leakage and protecting the pipeline. The best CPVC end cap is made from a combination of plastic and vinyl. Pipes are long-lasting, do not wear out quickly, and can be used for a long time. CPVC material is resistant to wear and tear.
CPVC caps are commonly used in chemical processing and water distribution systems where high temperature and chemical resistance are required. They are typically solvent-cemented to the pipe end, creating a strong, leak-proof connection and allowing the pipeline to be safely terminated or sealed for future expansion or maintenance. It is widely used in water piping systems, underground wiring, and conduit lines. You will need to close the top of the cap to keep it from leaking. The CPVC cap is usually available for pipes with a diameter of two inches or more.
- Chemical Resistance
- Low Maintenance Requirement
- Low Thermal Conductivity
- Long Service Life
- Easy Installation
- Corrosion Resistance
CPVC End Cap Details
| Part Number (CPVC) | Size (inch) | M (inch) | W (inch) | Approx. Wt. (lbs.) |
| 847-005C | 1/2 | 1-3/16 | 1-7/32 | 0.03 |
| 847-007C | 3/4 | 1-3/8 | 1-13/32 | 0.05 |
| 847-010C | 1 | 1-11/16 | 1-19/32 | 0.08 |
| 847-012C | 1-1/4 | 2-3/32 | 1-27/32 | 0.13 |
| 847-015C | 1-1/2 | 2-11/32 | 2 | 0.17 |
| 847-020C | 2 | 2-27/32 | 2-9/32 | 0.37 |
| 847-025C | 2-1/2 | 3-9/16 | 2-11/16 | 0.52 |
| 847-030C | 3 | 4-5/32 | 3-1/32 | 0.93 |
| 847-040C | 4 | 5-7/32 | 3-9/16 | 1.46 |
| 847-060C | 6 | 7-1/2 | 4-7/8 | 3.22 |
| 847-080C | 8 | 9-11/16 | 6-1/2 | 6.36 |
| 847-100CF | 10 | 12-1/4 | 6 | 9.12 |
| 847-120CF | 12 | 14-1/4 | 6-7/8 | 11.72 |
| Parameter | Details |
| Product Type | End Cap / Pipe Cap |
| Function | Seals or terminates the end of a pipeline |
| Material | CPVC (Chlorinated Polyvinyl Chloride) |
| Size Range | ½″ to 6″ (15 mm to 150 mm) |
| Pressure Rating | Up to PN 10 / 10 bar (depends on SDR/Schedule) |
| Temperature Range | 0°C to 93°C |
| Standards | ASTM D2846, ASTM F439, IS 15778 |
| Connection Type | Socket (solvent weld), threaded (less common) |
| End Type | Closed-end (no outlet) |
| Installation | Solvent cement joint / threaded |
| Base Material | CPVC thermoplastic |
| Specific Gravity | ~1.45 – 1.55 |
| Tensile Strength | ~7000 – 7500 psi |
| Flexural Strength | ~11,000 – 13,000 psi |
| Compressive Strength | ~10,000 psi |
| Impact Strength | Good impact resistance |
| Thermal Conductivity | Low (insulating material) |
| Water Absorption | Very low (~0.03%) |
| Fire Resistance | Self-extinguishing |
| Shape | Dome-shaped or flat closed end |
| Design | Socket-type fitting with closed top |
| Weight | Lightweight |
| Surface Finish | Smooth internal and external surface |
| Color | Ivory / light grey |
| Wall Thickness | Matches pipe schedule (SCH 40 / SCH 80) |
| Strength | Designed to withstand internal pressure at pipe end |
- High Chemical Resistance
CPVC caps resist a wide range of chemicals, acids, and alkalis, making them suitable for industrial and chemical piping systems. - Excellent Temperature Resistance
They can withstand temperatures up to 90°C, making them ideal for hot water and high-temperature fluid applications. - Leak-Proof Design
Designed to provide a tight seal at the end of pipes, preventing leakage and ensuring safe operation of the piping system. - Lightweight Construction
CPVC caps are lighter than metal fittings, making handling, transportation, and installation easier. - Smooth Inner Surface
The smooth surface reduces the risk of scaling and ensures better flow characteristics in the piping system. - Corrosion and Rust Free
Unlike metal fittings, CPVC caps do not rust or corrode, ensuring long service life. - Easy Installation
Can be easily installed using solvent cement joints, creating a strong and permanent connection. - High Strength and Durability
Made from strong CPVC material, providing good mechanical strength and durability. - Low Maintenance
Due to their corrosion resistance and durable material, CPVC caps require minimal maintenance. - Wide Range of Sizes
Available in various sizes to suit different CPVC piping systems and applications.
| Nominal Pipe Size (Inch) | DN Size | Pressure Rating at 23°C (73°F) | Pipe Schedule |
| ½” – 1″ | DN15 – DN25 | Up to 25 bar | SCH 80 |
| 1¼” – 2″ | DN32 – DN50 | Up to 20 bar | SCH 40 / SCH 80 |
| 2½” – 4″ | DN65 – DN100 | Up to 16 bar | SCH 40 |
| 5″ – 8″ | DN125 – DN200 | Up to 10 bar | SCH 40 |
| 10″ – 12″ | DN250 – DN300 | Up to 6 bar | SCH 40 |
| Temperature (°C) | Pressure Rating Capacity |
| 23°C | 100% |
| 40°C | 75% |
| 60°C | 50% |
| 80°C | 25–30% |
Custom Product Manufacturing Available
If you are searching for customized product designs that meet your requirements, don’t worry. Petron Thermoplast also offers custom product manufacturing services to meet the unique needs of various industries. Work with our expert engineers to create custom designs suited for your application.
Benefits of Using CPVC End Cap
Excellent Corrosion Resistance
CPVC caps resist corrosion from chemicals, acids, and alkalis, making them suitable for harsh industrial environments.
High Temperature Resistance
They can withstand higher temperatures (up to about 90°C), making them ideal for hot water and industrial fluid systems.
Leak-Proof Sealing
CPVC caps provide a tight and secure closure at the end of pipes, preventing leakage and ensuring system safety.
Lightweight Material
Compared to metal fittings, CPVC caps are lightweight, which makes handling and installation easier.
Easy Installation
They are installed using solvent cement, creating a strong and permanent joint with CPVC pipes.
Low Maintenance
CPVC caps require minimal maintenance due to their resistance to rust, scaling, and chemical attack.
Long Service Life
The durable CPVC material ensures long-term performance in industrial piping systems.
Good Chemical Compatibility
Suitable for use in chemical processing, water treatment plants, and industrial fluid handling systems.
Cost-Effective
CPVC caps are more economical than many metal alternatives while providing reliable performance.
Versatile Applications
Widely used in industrial pipelines, chemical plants, and water distribution systems.
Types of CPVC End Cap
Socket (Slip) CPVC Cap
- The most common type of CPVC cap.
- Fits over the end of a CPVC pipe and is joined using solvent cement for a permanent seal.
Threaded CPVC Cap
- Designed with internal threads.
- Screws onto a male threaded pipe or fitting, allowing easy installation and removal.
Dome (Round) CPVC Cap
- Has a rounded or dome-shaped end.
- Provides extra strength and is often used in higher-pressure applications.
Flat CPVC Cap
- Features a flat top surface.
- Commonly used in standard piping systems to close pipe ends.
Heavy Duty CPVC Cap
- Thicker and stronger construction.
- Suitable for industrial piping systems that require higher durability.
Reducing CPVC Cap
- Used when closing a pipe while reducing the pipe size at the same time.
- Helps in modifying pipeline configurations.
Applications of CPVC End Cap
Process Industry
High Purity Applications
Electronic Industry
Electrical Industry
Semi-conductors Industry
Pharmaceutical Industry
Solar power panels
Sugar Industry
Paper & Pulp Industry
Nuclear Power Industry
Automotive Industry
DI water plants
Why Choose Petron Thermoplast?
A Petron Thermoplast provides CPVC Caps that keep connections simple and cost-effective. Selecting the right type depends on your CPVC Cap setup, material, and pressure requirements. At Petron Thermoplast, we manufacture CPVC caps that meet ASME and MSS standards.
Material Selection – Fluid compatibility, Operating temperature, Pressure rating, Standards/Regulations
Length and Pressure Rating – MSS is short for low pressure. ANSI is long for high pressure.
