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Piping & Heating Technical Guides

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

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Latest technical guides

Pipe for Underfloor Heating: Standards & Sourcing Guide
Fittings & Systems

Pipe for Underfloor Heating: Standards & Sourcing Guide

Pipe for underfloor heating is not one product. It is a loop pipe inside the floor, a distribution pipe between the plant…

August 6, 2026 · 15 min read
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Fusion Pipe Welding: Methods, Equipment, and Joint Quality for PPR and HDPE Systems
Pipe Selection

Fusion Pipe Welding: Methods, Equipment, and Joint Quality for PPR and HDPE Systems

Fusion welding is the only joining method that makes a thermoplastic pipe joint stronger than the pipe itself. No glue. No rubber…

August 5, 2026 · 19 min read
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PPR Pipe Fittings Names: The Complete Reference with Sizes and Applications
PP-R Systems

PPR Pipe Fittings Names: The Complete Reference with Sizes and Applications

Complete set of PPR pipe fittings arranged by type: couplers, elbows, tees, ball valve, brass-insert adapters and clips The first question a…

August 5, 2026 · 16 min read
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How to Install PPR Pipe and Fittings: From Layout to Handover
PP-R Systems

How to Install PPR Pipe and Fittings: From Layout to Handover

Most crews that get called back to a PP-R job did not weld badly. They welded well, in the wrong place, on…

August 4, 2026 · 22 min read
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Plastic Pipe Pressure Ratings Compared: PN, SDR and Why the Number on the Pipe Is Not the Whole Story
Uncategorized

Plastic Pipe Pressure Ratings Compared: PN, SDR and Why the Number on the Pipe Is Not the Whole Story

Plastic Pipe Pressure Ratings Compared: PN, SDR and Why the Number on the Pipe Is Not the Whole Story Every plastic pipe…

August 3, 2026 · 13 min read
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Pipe Fittings HS Code: PP-R Import Checks Before Shipment
Import & Wholesale

Pipe Fittings HS Code: PP-R Import Checks Before Shipment

Pipe fittings HS code: separate PP-R pipe from fittings, check national tariff lines and document scope, and confirm the customs value for…

August 3, 2026 · 8 min read
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PPR Pipe Cutter Sizes: Match the Tool to the Pipe | Hitze
Fittings & Systems

PPR Pipe Cutter Sizes: Match the Tool to the Pipe | Hitze

PPR pipe cutter sizes are sold by one number: the maximum outside diameter the tool can shear. Walk a tool counter and…

August 1, 2026 · 14 min read
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How to Connect PPR Pipe to GI, Copper and Threaded Brass
PP-R Systems

How to Connect PPR Pipe to GI, Copper and Threaded Brass

The four real PPR-to-metal transition SKUs, BSP vs NPT thread limits, sealant rules and where the brass insert lets go. For contractors…

August 1, 2026 · 23 min read
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PPR Fittings Names: Read a Catalogue Without Ordering Wrong
Fittings & Systems

PPR Fittings Names: Read a Catalogue Without Ordering Wrong

A PP-R range is eight fitting families — socket, elbow, tee, reducer, end cap, union, brass-insert fitting and saddle — and every…

July 31, 2026 · 14 min read
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PPR Pipe Price Guide: What Actually Drives the Quote
Import & Wholesale

PPR Pipe Price Guide: What Actually Drives the Quote

PPR pipe price lists rarely tell you what you are actually paying for. Two suppliers can quote the same de25 PN25 pipe…

July 30, 2026 · 13 min read
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