SDR/PN/Schedule methodology with worked educational example.
Methodology to select pressure vs gravity thermoplastic systems and apply SDR/PN/Schedule concepts with calculator support.
Given OD = 110 mm, SDR 17, S = 10 MPa (illustrative only): P = 2·10/(17−1) = 1.25 MPa ≈ 12.5 bar geometric thin-wall result. This does not set ALFA catalogue PN — confirm product rating and temperature derating separately.
This engineering resource explains Pipe Design for designers and reviewers. Use it to clarify definitions, methods, and limitations—then apply project-specific data.
Document formulas and variable definitions when performing calculations. Call out where soil modulus, temperature derating, or surge dominates the result. Link outcomes back to product standards and application hubs for procurement.
Related: products · applications · standards index.
Standard, size/pressure class, jointing system, quantities/lengths, fittings list, delivery location, and any submittal/test requirements from the specification.
Not without review. Dimensions, pressure classes, and test methods differ across standard families.
Use the RFQ form or contact +966 50 183 5126 / sales@alfaalarabia.co. Manufacturing is based at 3rd Industrial City, Jeddah, Kingdom of Saudi Arabia (Aramco Vendor #10116102).
Batch-1 knowledge update: ALFA-specific order data must come from approved submittals—this section does not invent ratings or certifications.
