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Use these permanent system guides first; the latest articles below answer narrower project questions.
Press, compression or push-fit? A contractor's guide to which joint won't leak: code limits (ASSE 1061, IAPMO), jaw profiles and pipe-tolerance traps.
Latest in this category
PPR fittings list to BOQ: the NRM2 rule on whether fittings are priced at all, the four count triggers, fusion-depth pipe loss,…
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Pex pipe in pipe relining pulls a smaller PEX tube through an existing host pipe and terminates it at both ends. The…
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Pipe for underfloor heating is not one product. It is a loop pipe inside the floor, a distribution pipe between the plant…
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PPR pipe cutter sizes are sold by one number: the maximum outside diameter the tool can shear. Walk a tool counter and…
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A PP-R range is eight fitting families — socket, elbow, tee, reducer, end cap, union, brass-insert fitting and saddle — and every…
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Install a UFH manifold to EN 1264-4: port count, Eurocone connections, the 4-6 bar DIN 18380 test, screed cover depths and the…
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Cold rooms with the pump running? The full manifold balancing procedure: calculate per-loop flow, purge, set the 0-2.5 L/min meters, avoid actuator…
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PN16 vs PN25 fitting pressure ratings: temperature derating, EPDM seal limits, EN 1254, and why the system rating is the weakest joint.…
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Galvanic corrosion in plumbing explained for contractors: the galvanic series, copper-to-galvanized failure, dielectric unions vs brass transitions, and DZR grades.
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PPSU vs brass push-fit fittings compared for wholesalers: hydrolysis, DZR grades, UV, stress-cracking, price index and certs. A stocking matrix from Hitze.
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