FAQ
Product, standards, ordering, delivery, and technical support information.
We are manufacturer of HDPE pipe, HDPE fittings and fusion machinery since 1992.
SMARTJOINT manufactures a full range of HDPE piping systems, including HDPE pipes, injection and fabricated fittings, electrofusion fittings, PP compression fittings, and butt fusion machines for water, gas, mining, and industrial applications.
SMARTJOINT products comply with ISO 4427, ISO 4437, EN 12201, EN 1555 and other international standards.
Certificates include WRAS, NSF, Watermark, Australian Standard Mark, CE, BV France and regional approvals.
Quality management system complies with ISO9001.
SMARTJOINT can manufacture HDPE pipes and fittings with diameters up to DN2500, suitable for large-scale municipal, mining and infrastructure projects.
SMARTJOINT HDPE systems are widely used in potable water supply, gas distribution, mining slurry pipelines, wastewater treatment, irrigation and industrial fluid transportation.
SMARTJOINT HDPE pipes and fittings support butt fusion, electrofusion and flange connections, ensuring secure and leak-free installation.
Yes. SMARTJOINT provides OEM services and customized HDPE products including special dimensions, pressure ratings and project-specific fabrication solutions.
SMARTJOINT exports HDPE piping systems to North America, South America, Australia, Africa, Southeast Asia and the Middle East.
We provide technical consultation, installation guidance, welding training and project support.
Remote support via email, WhatsApp or video meeting is recommended first. On-site support is available if necessary.
Samples are not free, but the sample fee can be refunded after order confirmation.
Sample lead time is 2–5 days. Mass production usually takes 10–30 days after receiving the 30% deposit.
Payment terms: T/T, L/C, Western Union.
Payment condition: 30% deposit, 70% balance before shipment.
Shipping by DHL, UPS, FedEx, TNT, air or sea freight. Transhipment is allowed.
Warranty period: one year from B/L date, with full after-sales support.






