Hitze Insights
Specification, certification and sourcing guides for wholesalers, contractors and private-label brands — written from the Hitze engineering desk.
Latest research

Pipe for underfloor heating is not one product. It is a loop pipe inside the floor, a distribution pipe between the plant…
Read guide →
Fusion welding is the only joining method that makes a thermoplastic pipe joint stronger than the pipe itself. No glue. No rubber…
Read guide →
Complete set of PPR pipe fittings arranged by type: couplers, elbows, tees, ball valve, brass-insert adapters and clips The first question a…
Read guide →
Most crews that get called back to a PP-R job did not weld badly. They welded well, in the wrong place, on…
Read guide →
Plastic Pipe Pressure Ratings Compared: PN, SDR and Why the Number on the Pipe Is Not the Whole Story Every plastic pipe…
Read guide →
Pipe fittings HS code: separate PP-R pipe from fittings, check national tariff lines and document scope, and confirm the customs value for…
Read guide →
PPR pipe cutter sizes are sold by one number: the maximum outside diameter the tool can shear. Walk a tool counter and…
Read guide →
The four real PPR-to-metal transition SKUs, BSP vs NPT thread limits, sealant rules and where the brass insert lets go. For contractors…
Read guide →
A PP-R range is eight fitting families — socket, elbow, tee, reducer, end cap, union, brass-insert fitting and saddle — and every…
Read guide →
PPR pipe price lists rarely tell you what you are actually paying for. Two suppliers can quote the same de25 PN25 pipe…
Read guide →Get Started
Tell us your market, product lines and volumes — we reply with pricing, MOQ and the certification documents for your region.