EB-20 / EB-35 / DB-60 / DB-100 / DB-120 wall classes from ALFA PQD. Shared dimensional table with companion TC-6/TC-8 page.
Product photos from ALFA assets and supporting catalogue imagery for this family — for visual reference during specification and RFQ.
ALFA PQD lists NEMA TC-6 and NEMA TC-8 duct walls (EB-20, EB-35, DB-60, DB-100, DB-120) for sizes 1"–6". NEMA TC-8 is documented by ALFA alongside TC-6 in the fittings/duct context. ALFA documents both TC-6 and TC-8; confirm which designation your project requires before ordering.
| Standards | NEMA TC-6 and NEMA TC-8 |
|---|---|
| Wall classes | EB-20, EB-35, DB-60, DB-100, DB-120 |
| Sizes documented | 1" to 6" |
| Page focus | TC-8 |
| Companion | TC-6 |
NEMA TC-8 is documented by ALFA alongside TC-6 in the fittings/duct context. ALFA documents both TC-6 and TC-8; confirm which designation your project requires before ordering.
Dimensional data below is shared across TC-6 and TC-8 pages as published in the same PQD extract.
Exact configuration, stock availability and project-specific technical requirements should be confirmed with ALFA AL-ARABIA against the applicable technical documentation.
| Size | Metric OD label | OD (mm) | EB-20 | EB-35 | DB-60 | DB-100 | DB-120 |
|---|---|---|---|---|---|---|---|
| 1" | 27 | 33.68–33.94 | 1.52 | — | — | — | — |
| 1-1/2" | 40 | 48.11–48.41 | 1.52 | 1.65 | — | — | — |
| 2" | 53 | 60.18–60.48 | 1.52 | 1.65 | 2.11 | — | — |
| 3" | 78 | 88.7–89.1 | 1.7 | 2.08 | 2.54 | 3.07 | 3.23 |
| 4" | 103 | 114.07–114.53 | 2.26 | 2.77 | 3.33 | 3.94 | 4.22 |
| 6" | 155 | 168–168.56 | 3.43 | 4.17 | 4.98 | 5.82 | 6.2 |
Yes — both appear in Pre-Qualification documentation.
Confirm with ALFA against the project specification.
EB-20, EB-35, DB-60, DB-100, DB-120.
1" through 6" with OD ranges.
Yes — shared PQD extract; emphasis text differs.
TC-2 covers EPT/EPC conduit; TC-6/8 cover utilities duct classes.
Dashes mean not listed in the extract for that combination.
Request current ALFA schedule with RFQ.
Standard / designation, sizes, quantities, jointing preference, project location, delivery date, and any inspection or submittal needs.
Yes. ALFA AL-ARABIA manufactures at 3rd Industrial City, Jeddah, KSA and holds Saudi Aramco Vendor Code #10116102.
Use the Upload BOQ page or Request Quotation form linked from this page.
ALFA sales/engineering: +966 50 183 5126 or sales@alfaalarabia.co.
Contact our Jeddah engineering desk for instant project-specific pricing, technical submittals, and Material Approval Request (MAR) support.
Pvc Conduit Nema Tc 8 is an ALFA thermoplastic piping product family page. Use it to confirm the referenced standard family, intended service (pressure, gravity, conduit, or hot service), and the documentation needed for submittals—then request sizes/classes against your BOQ.
| Check | Why it matters |
|---|---|
| Governing standard on the datasheet/BOQ | Prevents mixing DIN/ASTM/NEMA dimension systems |
| Pressure class / Schedule / SN | Must match operating pressure or burial load |
| Jointing system | Solvent weld vs seal ring changes install method and test timing |
| Media & temperature | Derate or change compound when temperature rises |
| Fittings & transitions | Metal interfaces need compatible flanges/adapters |
Do not size from diameter alone. Confirm hydraulic losses, surge, support spacing, UV exposure for above-ground runs, and chemical compatibility. Where numbers are required for design, use the project specification and published dimensional tables—request current ALFA submittals rather than assuming catalog memory.
This page may reference international standard families commonly used in Saudi project specifications (for example DIN, ASTM, or NEMA-related conduit standards). ALFA supplies to the standard stated on the order and submittal package—do not infer unstated certifications from this narrative.
Factory supply from 3rd Industrial City, Jeddah, Kingdom of Saudi Arabia. RFQ: request a quotation · +966 50 183 5126 · Aramco Vendor #10116102.
Use the direct-answer and design sections above for selection criteria, then confirm the governing standard, pressure/stiffness class, jointing method, and test regime from the project specification before ordering.
Project specifications name the governing standard (for example DIN, ASTM, or NEMA families). Procure and test to that standard—do not assume interchangeability across standards without engineering review.
Use the direct-answer and design sections above for selection criteria, then confirm the governing standard, pressure/stiffness class, jointing method, and test regime from the project specification before ordering.
Follow project specification for bedding, jointing, testing, and documentation.
Material choice depends on temperature, pressure, chemistry, jointing preferences, and authority approvals. No single polymer is universally best—compare against the service conditions.
Use the direct-answer and design sections above for selection criteria, then confirm the governing standard, pressure/stiffness class, jointing method, and test regime from the project specification before ordering.
Batch-1 knowledge update: ALFA-specific order data must come from approved submittals—this section does not invent ratings or certifications.
