Description
Hydroplast pipe 4″ upvc sch 80
Suppliers in Pakistan Karachi Islamabad, Hydroplast contact 0322-3540656, 4 Meter length, Hydroplast sch 80 upvc pipe 4″
What is Hydroplast pipe 4″ upvc sch 80 ?
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Hydroplast is a trusted Pakistan-based supplier (notably in Karachi and Islamabad) of Schedule 80 uPVC pipes and fittings. Their product range spans sizes from ½″ up to 8″, with Schedule 80 fittings available up to 12″
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The 4″ uPVC Schedule 80 pipe typically comes in 4-meter lengths.AR Corporation
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Rated for high-pressure applications, it supports up to 18 bar (~260 psi) as marketed by local suppliers.
Material & Construction
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Made from un plasticized polyvinyl chloride (uPVC) — a rigid, durable material with strong chemical resistance and corrosion durability.
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Schedule 80 denotes a thicker wall than Schedule 40, providing enhanced structural strength and pressure tolerance.
Dimensions & Pressure Ratings
Based on standard Schedule 80 specifications for 4″ IPS pipe:
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Outer Diameter (OD): ~4.500″
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Wall Thickness: ~0.337″
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Max Working Pressure @ 73°F (23°C): ~320 psi (~22 bar)
Note: Hydroplast markets the pipe at 18 bar (~260 psi), offering a conservative specification within standard industry norms.
Temperature & Pressure Derating
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Max Continuous Service Temperature: 140 °F (60 °C)
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Pressure Derating Table (typical, per Spears/Engineering Toolbox data)
| Temperature (°F) | Derating Factor | Effective Pressure (psi) |
|---|---|---|
| 73 (23°C) | 1.00 | 320 psi |
| 90 | 0.75 | ~240 psi |
| 100 | 0.62 | ~198 psi |
| 120 | 0.40 | ~128 psi |
| 140 (60°C) | 0.22 | ~70 psi |
Tip: At elevated temperatures, solvent-welded joints are strongly recommended over threaded connections to maintain integrity.
Chemical Resistance & Applications
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Schedule 80 uPVC exhibits robust resistance to acids, bases, salts, oxidants, and various corrosive fluids — making it well-suited for HVAC, chemical, agricultural, and industrial environments.
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Typical applications include:
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Chilled water or heating systems in HVAC setups.
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Chemical processing pipelines and corrosive fluid transfer.
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Water supply, wastewater treatment, and industrial fluid distribution.
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Reliable and cost-effective choice for directional runs and high-pressure installations.
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Summary Table
| Specification | Value / Note |
|---|---|
| Size (Nominal) | 4″ (IPS) |
| OD / Wall Thickness | ~4.500″ OD / ~0.337″ wall |
| Max Pressure @73 °F | ~320 psi (≈22 bar); marketed as 18 bar (~260 psi) |
| Max Temp | Up to 140 °F (60 °C) |
| Derated Pressure | ~240 psi @90 °F; ~128 psi @120 °F; ~70 psi @140 °F |
| Material | uPVC, chemical and corrosion-resistant |
| Joints | Solvent welding preferred at elevated temps |
| Applications | HVAC, chemical, industrial, water systems |
In Conclusion
The Hydroplast 4″ Schedule 80 uPVC pipe is a high-pressure, temperature-capable, and chemically robust solution widely available in Pakistan. Its thick walls, reliability, and resistance make it ideal for demanding HVAC, industrial, and fluid handling systems — particularly when installed with proper solvent-welded joints and attention to temperature-based derating.
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