PPH End Cap
A PPH End Cap is a type of pipe fitting made from Polypropylene Homopolymer (PPH) that is used to close or seal the end of a pipe in a piping system.It is fitted at the terminal end of a pipeline to stop the flow of fluid, protect the pipe from contamination, and provide a secure and leak-proof closure. PPH end caps are widely used in chemical processing, water treatment, and industrial piping systems due to their excellent chemical resistance, corrosion-free nature, and high durability.
PPH end cap manufacturer, it 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. PPH Cap material is resistant to wear and tear. As a result, it is widely used in water piping, underground wiring and conduit lines. You will need to close the top of the cap to keep it from leaking. The 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
PPH End Cap Details
ID – Inner Diameter
OD – Outer Diameter
WT – Wall Thickness
SL – Socket Length
L – Overall Length (Depth of Cap)
| Size (Inch) | ID (mm) | OD (mm) | WT (mm) | SL (mm) | L (mm) |
| ½ | 21.64 | 29.10 | 3.73 | 22.23 | 28 |
| ¾ | 26.97 | 34.79 | 3.91 | 25.40 | 36 |
| 1 | 33.78 | 42.88 | 4.55 | 28.58 | 36 |
| 1¼ | 42.55 | 52.25 | 4.85 | 31.75 | 42 |
| 1½ | 48.72 | 58.88 | 5.08 | 34.93 | 45 |
| 2 | 60.78 | 71.86 | 5.54 | 38.10 | 54 |
| 2½ | 73.56 | 87.58 | 7.01 | 44.45 | 60 |
| 3 | 89.50 | 113.74 | 7.62 | 47.63 | 66 |
| 4 | 114.99 | 132.11 | 8.56 | 57.15 | 80 |
| Parameter | Details |
| Product Type | End Cap (Pipe End Closure) |
| Material | Polypropylene Homopolymer (PPH) |
| Manufacturing Method | Injection moulded / Moulded |
| Connection Type | Butt fusion, Socket fusion, Threaded |
| Available Sizes | D 20MM to D 315MM (½” to 12”) |
| Pressure Rating | PN6 / PN10 / PN16 (depending on SDR & thickness) |
| Operating Temperature | 0°C to 100°C (short-term up to ~110°C) |
| Density | ~0.90 – 0.91 g/cm³ |
| Tensile Strength | ~25 – 35 MPa |
| Flexural Strength | ~45 MPa |
| Melting Point | ~165°C |
| Thermal Conductivity | ~0.22 W/m·K |
| Water Absorption | Very low (<0.1%) |
| Color | Grey / Natural / Black |
| Surface Finish | Smooth internal & external surface |
| Chemical Resistance | Excellent (acids, alkalis, solvents) |
| UV Resistance | Available with UV stabilization |
| Standards Compliance | DIN 16962, ISO 15494 |
| Application Areas | Chemical plants, water treatment, industrial piping |
• Excellent Chemical Resistance
- Resistant to acids, alkalis, salts, and solvents
- Suitable for aggressive chemical environments
• Strong & Leak-Proof Sealing
- Provides tight closure at pipe ends
- Prevents leakage and contamination of fluids
• High Temperature Resistance
- Can operate up to ~100°C (continuous service)
- Maintains stability under thermal conditions
• Corrosion-Free Material
- Does not rust, scale, or degrade like metal fittings
- Ideal for long-term industrial use
• Lightweight & Easy Handling
- Low density material
- Easy to transport and install
• High Strength & Durability
- Resistant to impact, wear, and abrasion
- Long service life even in harsh conditions
• UV & Weather Resistance
- Available with UV stabilization for outdoor use
• Easy Installation
- Compatible with butt fusion and socket fusion welding
- Quick and reliable installation process
• Low Maintenance
- Requires minimal upkeep after installation
- Cost-effective over long periods
• Non-Toxic & Hygienic
- Suitable for water and food-grade applications
- Does not affect fluid quality5
| PN Rating / Temp | Pressure (bar) | Application Level | PN 10 Derated | PN 16 Derated |
| PN 6 | 6 bar | Low pressure systems | — | — |
| PN 10 | 10 bar | Medium pressure systems | 10 bar (@ 20°C) | — |
| PN 16 | 16 bar | High pressure systems | — | 16 bar (@ 20°C) |
| 30°C | — | Reduced Pressure | 8 bar | 13 bar |
| 40°C | — | Reduced Pressure | 6 bar | 11 bar |
| 50°C | — | Reduced Pressure | 4 bar | 8 bar |
| 60°C | — | Reduced Pressure | 3 bar | 6 bar |
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 PPH End Cap
Excellent Chemical Resistance
- Highly resistant to acids, alkalis, and corrosive chemicals
- Suitable for harsh industrial environments
Leak-Proof Sealing
- Provides tight and secure closure at pipe ends
- Prevents leakage and contamination of fluids
High Temperature Resistance
- Can operate up to ~100°C continuously
- Maintains stability in high-temperature conditions
Corrosion-Free Material
- Does not rust, scale, or degrade like metal fittings
- Ideal for long-term use in aggressive environments
Lightweight & Easy Handling
- Low density makes it easy to transport and install
- Reduces labor and installation cost
Strong & Durable
- High strength-to-weight ratio
- Resistant to impact, wear, and abrasion
UV & Weather Resistance
- Available with UV stabilization
- Suitable for outdoor applications
Easy Installation
- Compatible with butt fusion and socket fusion welding
- Quick and reliable installation process
Low Maintenance
- Requires minimal upkeep after installation
- Long service life reduces replacement costs
Hygienic & Non-Toxic
- Safe for water and food-grade applications
- Does not affect fluid quality
Types of PPH End Cap
Butt Fusion End Cap
- Joined by heat fusion welding
- Provides strong, permanent, and leak-proof sealing
- Common in industrial pipelines
Socket Fusion End Cap
- Pipe is inserted into the cap and fused
- Easy installation for small-diameter pipes
- Ensures reliable sealing
Threaded End Cap
- Comes with internal (female) threads
- Can be easily screwed on/off
- Suitable for low-pressure or temporary closures
Permanent End Cap
- Installed permanently at the pipe end
- Used in closed pipeline systems
Temporary (Removable) End Cap
- Used during testing, maintenance, or future expansion
- Easy to remove and reuse
Standard (Round) End Cap
- Most common type
- Fits standard pipe ends
Applications of PPH 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?
Petron Thermoplast PPH Backing Ring are efficient, reliable, and essential tools in industrial automation, offering precise control of flow, pressure, and temperature. Proper selection, correct installation, and regular maintenance to ensure that these rings perform optimally in practical applications. As industrial automation technology continues to advance, the PPH Backing Ring will see broader applications and improved performance, providing a reliable foundation for safe, efficient, and stable production.
