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Types of PEX Fittings: The Five Families, and Which Ones Can Legally Share a Wall
There are five types of PEX fittings once you count them the way a plumbing code does, by the standard that lists each one. The five: cold expansion, insert bodies gripped by a copper crimp ring, the same bodies gripped by a stainless steel clamp, push-fit, and threaded or transition adapters. One adopted US fitting
Becoming a Pipe & Fittings Distributor: How Brand Agency Agreements Work
Pipe fittings distributor agreement, clause by clause: what exclusivity buys, purchase-target traps, trademark recordal and the exit terms to demand.
China Pipe Supplier Middleman: 8 Signs You’re Not at the Factory
Every importer has met the pitch: a ‘factory’ with a catalogue spanning every pipe material, a price that beats everyone, and a salesperson who answers each technical question with a brochure. Some of those suppliers make the pipes they sell. Many do not. Across China, thousands of trading companies sit between overseas buyers and the
PEX vs PVC Pipe: What Distributors Should Actually Stock
PEX and PVC are not competing materials — the plumbing code already split them. What that means for your stock list, fitting inventory and landed cost.
WRAS vs NSF Certification: Which Approval Your Market Requires, and How to Check the One You Were Sent
The practical difference between WRAS and NSF certification is jurisdictional, not qualitative: WRAS Approval is the route British water companies recognise for demonstrating that a fitting meets the Water Supply (Water Fittings) Regulations, and NSF/ANSI/CAN 61 is the health-effects standard North American plumbing codes are written around. Neither one substitutes for the other. A buyer
PEX Brass Manifold Sizing: Ports, Flow Rate & What to Specify
Search for a PEX brass manifold and the results will offer you a 36-port unit and a 4-loop unit on the same screen, at prices an order of magnitude apart, with nothing on either listing explaining which one your job needs. That is not a bad search result. It is an accurate picture of a
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.
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