Hitze Insights
Piping & Heating Technical Guides
Specification, certification and sourcing guides for wholesalers, contractors and private-label brands — written from the Hitze engineering desk.
Latest research
Latest technical guides
ISO 9080 Explained: How a 50-Year Pipe Rating Is Actually Proven
ISO 9080 turns years of hydrostatic failure data into a proven 50-year pipe rating. How MRS, the 97.5% LPL and EN ISO…
Read guide →
Factory vs Trading Company: How to Tell Who Actually Makes Your Pipe
Six remote tells that expose a factory vs trading company before you wire a deposit: license scope, certificate holder names, live video…
Read guide →
Plumbing Trade Shows (ISH, MCE, AHR): Where to Meet Pipe Manufacturers
Verified ISH 2027, AHR 2027 and MCE 2028 dates, booth questions that expose traders, and the post-show loop importers use to find…
Read guide →Reading a Pipe Supplier Quotation: 9 Line Items That Reveal Quality
Nine line items on a pipe supplier quotation that expose cut corners: material grade, EN ISO class, SDR, CW617N brass, DIN 4726…
Read guide →
Payment Terms With Overseas Pipe Suppliers: T/T, L/C & Risk Splits
How supplier payment terms split risk on pipe imports: T/T vs L/C under UCP 600, D/P, escrow, first-order vs reorder fits, and…
Read guide →
How to Evaluate Pipe Samples Before Your First Container Order
Pipe sample testing for importers: caliper checks vs DIN 8077/ASTM F876, weight per meter, peel tests and lot matching before the container…
Read guide →
PPR Welding Machines Compared: Handheld, Bench and Jig Systems
PPR pipe welding machine guide comparing handheld, bench and guided tools by size, alignment, temperature control, voltage and workload.
Read guide →
How to Weld PPR Pipe: A Socket-Fusion Field Guide
Learn how to weld PPR pipe in eight controlled socket-fusion steps, avoid weak joints, inspect the bead and prepare the system for…
Read guide →
PPR Specification and Submittal Checklist for MEP Tenders
PPR pipe specification: audit an MEP submittal for standards, dimensions, pressure-temperature data, certificates, joints and traceability.
Read guide →
PPR Pipe Sizes, SDR and PN Ratings: 20–110 mm Guide
PPR pipe sizes from 20 to 110 mm: compare SDR and PN ratings and write a complete hot- or cold-water pipe specification.
Read guide →Get Started
Request a Quote & the Cert Pack
Tell us your market, product lines and volumes — we reply with pricing, MOQ and the certification documents for your region.