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
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 →
PPR Hot-Water Temperature Rating: What the Numbers Really Mean
PPR has no single hot-water limit. Learn how 60°C, 70°C, 80°C and 95°C relate to application class, pressure derating, SDR and service…
Read guide →
PPR vs PVC and CPVC: Which Pipe Fits?
PPR vs PVC and CPVC compared by service scope, joining method, approvals and site risk, with a standards-grounded checklist for system selection.
Read guide →
Is PPR Pipe Safe for Drinking Water? A Certification-First Guide
PPR can be suitable for drinking water, but the name alone proves nothing. Check NSF 61, NSF 14, WRAS/DVGW scope, temperature and…
Read guide →
PEX & Multilayer Pipe Sizing: 16/20/25/32mm, Flow & Pressure
Size PEX & multilayer pipe by flow, not diameter: 16/20/25/32mm for loops, branches, trunks & mains, with code velocity limits and a…
Read guide →
Push-Fit Fittings for Retrofit: Where They Save Time & Where They Don’t
Where push-fit fittings save time on retrofit and where they cost a callback: ASSE 1061 ratings, concealed-wall rules and install discipline, from…
Read guide →
FOB vs CIF vs DDP for Pipe Imports: Who Carries the Risk
FOB, CIF or DDP for importing pipe? Who carries the risk, what CIF insurance really covers, and the HS duty rates that…
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.