PRODUCTS CENTER
Papua New Guinea M metric thread
Category:
Papua New GuineaElectrical conduit
Papua New GuineaM metric thread
Product Description
| Parameter Classification | Parameter Details |
| Catheter Category | 1. Thin-walled electrical metallic conduit 2. Rigid non-galvanized steel pipe 3. Hot-Dip Galvanized Rigid Electrical Conduit 4. General-purpose galvanized electrical conduit |
| Size range | Nominal diameter: 1/2"–6" Wall thickness standards: Schedule 40, Schedule 80 |
| Surface treatment | Hot-dip galvanizing, corrosion-resistant and suitable for outdoor environments. |
| End thread type | NPT Thread, G (BSPP) Thread, M Metric Thread |
| Matching fittings | Conduit Coupling, HDG Galvanized Coupler, Rigid Conduit Connector, Electrical Pipe Joint |
Application scenarios
Electrical wiring for industrial plants / Circuit protection in commercial buildings / Heavy-duty, high‑load wiring projects / Cable protection within building structures / Underground conduit installation / Outdoor overhead wiring / Concrete pre‑embedded conduits / Waterproof and corrosion‑resistant pipelines / Explosion‑proof high‑voltage distribution systems
Comparison Table of Three Thread Parameters
| Comparison item | NPT thread | G British cylindrical thread | M metric thread |
| Full name of the standard | American Standard Taper Pipe Thread | (BSPP) British Standard Pipe cylindrical thread | Metric General-Purpose Thread |
| Tooth profile angle | 60° | 55° | 60° |
| Geometric structure | With a taper, taper ratio 1:16 | r cylindrical, without taper | Cylindrical, without tapering |
| Sealing method | Threaded taper self-sealing; recommended to use with PTFE tape. | No self-sealing; relies on a gasket for sealing. | No self-sealing; requires sealant/seal ring. |
| Size designation unit | Inch (e.g. 1/2", 3/4", 2") inch marking | Inch (e.g. G1/2, G3/4, G2) inch designation | (e.g. M20×1.5, M25×1.5) metric designation in millimeters |
| Applicable Market Scenarios | North American market, high-voltage explosion-proof applications | Europe / Globally applicable, standard waterproofing works | Domestic, German, precision electromechanical wiring |
Core Product Advantages
1. Exceptional corrosion resistance
The pipes are manufactured using a hot-dip galvanizing process, and the zinc coating provides effective protection against corrosion, rainwater, and underground soil erosion, making them suitable for long-term outdoor installation as well as underground buried applications.
2. Multiple thread specifications available
Supports the three mainstream thread standards—NPT, G, and M—ensuring compatibility with electrical wiring installation requirements across all global regions.
3 Two wall thickness grades available
Schedule 40 standard wall thickness is suitable for general‑purpose applications; Schedule 80, with its thicker walls, offers higher load‑bearing capacity and is commonly used in heavy‑duty applications and concrete embedment.
4 Complete set of accompanying fittings
We offer galvanized couplings and straight connectors made from the same material, enabling one-stop procurement of complete piping system components.
5 Waterproofing and prevention of concrete slurry penetration
The threaded connection is tightly sealed, preventing grout ingress during concrete pouring; when installed underground, it effectively prevents water infiltration.
Matching fittings
Our factory offers synchronized, complementary production of hot-dip galvanized conduit couplings and rigid steel pipe straight fittings, all made from the same material. The galvanized coating on these fittings matches that of the conduits, ensuring compatibility with NPT, G, and M‑type threaded pipes. The connections are tight and secure, providing uniform corrosion protection throughout the entire piping system, making it suitable for a wide range of architectural and industrial wiring installations.