PVC High Pressure Pipes ASTM D 1785 SCH 40 / SCH 80
Premium Manufacturer & Supplier in the UAE
PVC-U pressure pipes to ASTM D 1785 — Schedule 40 & Schedule 80.
Standards & Certifications
Overview
Product introduction and key characteristics
Crown Plastic Pipes / Fittings, a leading PVC-U manufacturer in the UAE, produces a comprehensive range of high-pressure pipes conforming to ASTM D 1785. The American standard for rigid PVC pressure pipes in Schedule 40 (standard wall) and Schedule 80 (extra heavy wall) ratings. Widely used across UAE industrial zones, oil & gas auxiliary systems, and American-specification projects throughout the GCC. Manufactured at our ISO 9001:2015 certified facility in Umm Al Quwain, these pipes are trusted by contractors, consultants, and government authorities across the UAE.
Features
Technical advantages and key benefits of this product range
- High-pressure tolerance up to PN 16 and Schedule 80 ratings
- Excellent chemical resistance against corrosive industrial fluids
- Full compliance with ISO, DIN, BS, and ASTM international standards
- Corrosion-resistant PVC-U ensures long service life in Gulf climate conditions
- Smooth internal bore for optimised flow rates and reduced scale build-up
- Lightweight construction for easy handling and efficient installation
- UV-stabilised formulation suited to Middle East outdoor exposure
- ISO 9001:2015 certified production in the UAE
Applications
Ideal use cases and industries for this product
- Potable water supply and distribution networks across the UAE
- Industrial chemical processing and fluid transport
- Municipal sewerage and wastewater management systems
- Agricultural irrigation and high-pressure water delivery in GCC
- Electrical and telecommunications ducting applications
- HVAC systems and cooling water circulation
- Swimming pool and water feature installations
- Desalination plant auxiliary piping
Pipe Specifications
Technical dimensions and parameters for all pipe sizes
Inch size Pressure Pipes
| Nominal Size Inch | Outside Dia. (mm) | SCH 40 | SCH 80 | |||||
|---|---|---|---|---|---|---|---|---|
| Min | Max | Wall Thickness (mm) | Pressure Rating (BAR) | Wall Thickness (mm) | Pressure Rating (BAR) | |||
| Min | Max | Min | Max | |||||
| ½" | 21.24 | 21.44 | 2.77 | 3.28 | 41.40 | 3.73 | 4.24 | 58.60 |
| ¾" | 26.57 | 26.77 | 2.87 | 3.38 | 33.10 | 3.91 | 4.42 | 47.60 |
| 1" | 33.27 | 33.53 | 3.38 | 3.89 | 31.00 | 4.55 | 5.08 | 43.40 |
| 1 ¼" | 42.03 | 42.29 | 3.56 | 4.07 | 25.50 | 4.85 | 5.43 | 35.90 |
| 1 ½" | 48.11 | 48.41 | 3.68 | 4.19 | 22.80 | 5.08 | 5.69 | 32.40 |
| 2" | 60.17 | 60.47 | 3.91 | 4.42 | 19.30 | 5.54 | 6.20 | 29.0 |
| 3" | 88.70 | 89.10 | 5.49 | 6.15 | 17.90 | 7.62 | 8.53 | 25.50 |
| 4" | 114.07 | 114.53 | 6.02 | 6.73 | 15.20 | 8.56 | 9.58 | 22.10 |
| 6" | 168.00 | 168.56 | 7.11 | 7.97 | 12.40 | 10.97 | 12.29 | 19.30 |
| 8" | 218.70 | 219.46 | 8.18 | 9.17 | 11.00 | 12.70 | 14.22 | 17.20 |
| 10" | 272.67 | 273.43 | 9.27 | 10.39 | 9.70 | 15.06 | 16.87 | 15.90 |
| 12" | 323.47 | 324.23 | 10.31 | 11.55 | 9.00 | 17.45 | 19.53 | 15.90 |
Installation Guidelines
Best practices for optimal performance and longevity
Do's
- ✓Follow standard solvent welding or mechanical joining procedures
- ✓Ensure pipes are supported at recommended intervals to prevent sagging
- ✓Verify that the chosen pressure rating exceeds maximum system pressure
- ✓Conduct pressure testing before full commissioning
Don'ts
- ✗Do not exceed the maximum sustained working pressure for the temperature
- ✗Avoid dropping or dragging pipes on rough surfaces
- ✗Do not use for compressed air or gas transport unless specifically rated
- ✗Avoid prolonged UV exposure without adequate protection
Technical FAQs
Answers to common questions about this product
- High-pressure tolerance up to PN 16 and Schedule 80 ratings
- Excellent chemical resistance against corrosive industrial fluids
- Full compliance with ISO, DIN, BS, and ASTM international standards
- Corrosion-resistant PVC-U ensures long service life in Gulf climate conditions
- Smooth internal bore for optimised flow rates and reduced scale build-up
- Lightweight construction for easy handling and efficient installation
- UV-stabilised formulation suited to Middle East outdoor exposure
- ISO 9001:2015 certified production in the UAE
- Follow standard solvent welding or mechanical joining procedures
- Ensure pipes are supported at recommended intervals to prevent sagging
- Verify that the chosen pressure rating exceeds maximum system pressure
- Conduct pressure testing before full commissioning
- Do not exceed the maximum sustained working pressure for the temperature
- Avoid dropping or dragging pipes on rough surfaces
- Do not use for compressed air or gas transport unless specifically rated
- Avoid prolonged UV exposure without adequate protection
Technical Documents
Access comprehensive technical catalogues, dimensional specifications, and compliance documentation for PVC High Pressure Pipes ASTM D 1785 SCH 40 / SCH 80.
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