I Product Introduction
Brass Sliding Fittings for PEXb are high-performance connection solutions specifically designed for PEXb (silane cross-linked polyethylene) piping systems. Utilizing classic sliding design principles, these fittings achieve reliable sealing connections through axial sliding technology . Manufactured from European standard CW617N forged brass with precision-engineered sliding sleeves, they are suitable for PEXb pipe systems of S3.2 specifications . Simple installation, stable and reliable connections, effectively preventing leakage risks . Widely used in residential hot/cold water systems, radiator heating, underfloor heating, and other applications, these fittings are the ideal companion for PEXb piping systems.
I Product Features
1. Classic Design for Simple, Reliable Installation
Featuring classic sliding design, the installation process is intuitive: expand the PEXb pipe end, insert into the fitting body, and slide the sleeve to complete the connection . No heat fusion equipment, no power supply, no adhesives required—ideal for confined spaces and job sites. Connections are stable and reliable, effectively preventing leakage risks.
2. Quality Materials for Long-lasting Durability
Fitting bodies are manufactured from European standard CW617N forged brass, offering excellent corrosion resistance and mechanical strength . Threads conform to ISO228-1 standards, ensuring precise matching and reliable connections with other system components . Select models available in DZR (dezincification resistant) brass for aggressive water conditions.
3. Excellent Temperature and Pressure Resistance
Operating temperature range -10°C to 120°C with maximum working pressure up to 3.0 MPa . Suitable for hot/cold water transmission and heating systems under various climate conditions.
4. Precise Dimensions with Strong Compatibility
Critical dimensions (insert outer diameter, groove spacing, sleeve inner diameter) are controlled within ±0.05mm tolerances . Size range covers common diameters from 16mm to 32mm , perfectly matching BS 7291 certified PEXb pipe systems.
5. Multiple Surface Finishes for Different Requirements
Brass inserts available with nickel or chrome plating to enhance corrosion resistance and surface stability, with coating thickness controlled between 8-15μm . All surface-treated components undergo ISO 9227 salt spray testing and water immersion tests, ensuring long-term reliability.
6. Rigorous Quality Testing with Warranty
Each fitting undergoes strict quality testing: hydrostatic leak tests (16 bar for 30 minutes), burst pressure tests (exceeding 50 bar), thermal cycling tests (0°C to 95°C for 5,000+ cycles).
I Technical Specifications
Parameter | Specification |
Material | Forged Brass CW617N / HPb 57-3 / DZR Brass CW602N |
Applicable Pipes | PEXb pipe (silane cross-linked PE), S3.2 specifications |
Sizes | 16mm, 20mm, 25mm, 32mm |
Fitting Types | Couplings, elbows, tees, male/female adapters, etc. |
Thread Standard | ISO228-1 / BSP |
Connection Method | Axial sliding connection |
Working Pressure | Max 3.0 MPa |
Working Temperature | 10°C to 120°C |
Surface Finish | Natural, nickel-plated, chrome-plated optional |
Standards | BS 7291, ISO 15875, DIN 16892 |
I Product Specification
I Applications
Application Field | Specific Applications |
Residential Hot/Cold Water | Home, apartment water pipe connections |
Radiator Heating Systems | Radiator supply and return connections |
Underfloor Heating | Floor heating to manifold connections |
Commercial Building Piping | Hotel, office water supply systems |
Industrial Fluid Transport | Food, chemical process water lines |
Renovation Projects | Old pipe replacement, system modifications |
I FAQ
1. What are the differences between Brass Sliding Fittings for PEXb and the previous ones used for PEX-AL-PE(X)?
The main differences lie in the applicable pipe types and design optimization: This product is specifically designed for pure PEXb pipes, fully leveraging the shape memory and expansion rebound characteristics of PEXb material. While Brass Sliding Fittings for PEX-AL-PE(X) is suitable for multi-layer composite pipes with an aluminum layer, the two differ in expansion parameters, tight-fitting design, and sealing structure. Please choose the corresponding dedicated pipe fitting according to your pipe type.
2. Why choose Brass Sliding Fittings for PEXb?
PEXb pipes have a unique molecular memory effect, and after expansion, they will retract to their original size within a certain period. This product is optimized for this characteristic to ensure the best fit between the pipe and the pipe fitting during the tight-fitting process, achieving a permanent sealing connection. Using non-dedicated pipe fittings may result in insufficient connection strength or leakage risks.
3. What specialized tools are needed for the installation of Brass Sliding Fittings for PEXb ?
Special expansioners and tight-fitting tools are required. The expansioner is used to expand the end of the PEXb pipe to the appropriate size, and the tight-fitting tool is used to press the ring in place. We provide a matching installation tool kit to ensure installation quality.
4. How to ensure the sealing of the tight-fitting connection?
Sealing depends on three factors: expansion quality, insertion depth, and tight-fitting integrity. During installation, ensure that the pipe expansion is uniform without cracks, that it is fully inserted, and that the ring is evenly pressed. The special inclined design of the ring helps prevent excessive compression and ensures connection quality.
5. What is the delivery time for this pipe fitting?
Inventory products will be shipped within 7 working days. Batch orders will be completed within 15-25 working days based on the quantity. Free samples are available, and the freight is borne by the buyer.
