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Équipement de traitement allemand
Dix séries de marchés publics à guichet unique
How to Spot Recycled-Material Pipe Before It Ships
Recycled PPR and PEX pipe: the two ISO 15874-2 melt flow values to put in your PO, the ash-test trap that hides filler, and what each test cannot prove.
Brass Valve Manufacturer China: What to Specify Before You Order
Sourcing brass valves from China? Specify the alloy designation, not “lead-free”. Covers the 0.25% rule, NSF 372 vs 61, and the March 2027 withdrawal.
EU Drinking Water Directive: Your Pipe Compliance Route Before 31 Dec 2026
EU positive lists apply from 31 December 2026. Find your pipe’s risk group, which conformity modules apply, and what to ask suppliers before the deadline.
Pipe Fittings Supplier China: How to Verify One Before You Pay
Verify a China pipe fittings supplier before the deposit: WRAS, NSF and WaterMark register lookups, entity checks, MOQ drivers and the HTS rates you pay.
PE80 vs PE100 vs PE100-RC: What MRS Certifies and When RC Is Mandatory
PE100 means MRS 10,0 MPa — no more. The ISO 4427 design-stress table, PE100-RC vs PE100 key difference, and how to verify the grade shipped.
HDPE vs PVC Water Main: What to Specify Before You Compare Quotes
SDR 17 is not the same pressure class in HDPE and PVC. Design coefficients, the contaminated-soil clause, and the enquiry line that makes quotes match.
Pre-Shipment Inspection for Pipe and Fittings: A 40-Point Checklist
Here is a fact most buyers never use against their supplier: the pipe product standard already contains an inspection plan. GB/T 18742.2-2017, the PP-R pipe part of China’s adoption of ISO 15874, mandates sampling inspection by GB/T 2828.1 at AQL 4.0 for appearance and dimensions. GB/T 2828.1 is the same attribute sampling scheme as ISO
Can You Use PEX-B Fittings on PEX-A Pipe? The ASTM Answer
You can put a PEX-B crimp or clamp fitting on PEX-A pipe. It is a standard-compliant joint, not a workaround, and the reason is that the letters A, B and C do not describe three different pipe sizes. They describe three ways of crosslinking the same polyethylene, and all three land in the same dimensional
BSP vs NPT Threads: What to Specify on an Export Order
BSP vs NPT from ISO 7-1, ISO 228-1 and ASME B1.20.1: size-by-size diameters, why 1/2 in and 3/4 in leak, and the exact PO callout.
PEX to Copper Pipe Fittings: Which Standard Governs Which Transition
Which ASTM or ASSE standard governs each PEX-to-copper transition, the size ceilings that decide what to stock, and the lead-free rule since Sept 2023.
HDPE Pipe Supplier Selection: What to Verify Before You Order
How to qualify an HDPE pipe supplier: the 7-element marking check, the SDR/PN cross-check behind a price gap, four test reports, and UAE ECAS rules.
Incoterms and Packaging for Pipe Imports: Cutting Damage, Demurrage and Cost
Importing pipe incoterms packaging decisions usually get made in the wrong order. The Incoterm is negotiated first, the packing is left to the factory, and the importer only connects the two when a container arrives with an oval coil where a round one left the port. By then the question is not how to prevent
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