EN
ES
PTBrass PPR Inserts
Brass PPR Inserts Manufacturer & Exporter
Precious Metal Industries (PMI) is an established global manufacturer and exporter of high-precision Brass PPR Inserts engineered specifically for Polypropylene Random Copolymer (PPR-80 and PPR-100) pipe fitting networks. Designed for heavy-duty hot and cold water plumbing, radiant hydronic heating, and chemical conveyance systems, our brass inserts ensure an uncompromising, leak-proof transition between plastic PPR piping and metallic valves, faucets, or threaded fittings.
Operating from our 80,000 sq. ft. modern manufacturing facility in Jamnagar, Gujarat, we utilize high-speed multi-spindle automatic lathes and precision CNC turning centers. Every PPR insert is manufactured from premium extruded brass rods conforming to CW617N (EN 12165), CW614N (EN 12164), and lead-free ECO brass alloys (CuZn39Pb0.2 / C27450). Our deep diamond knurling, helical cross-ribs, and engineered anchoring collars provide exceptional torque retention and pull-out resistance during socket heat fusion and continuous operational pressure cycles up to 25 bar (PN25).
High Mechanical Locking
Specially designed undercut collars and aggressive diamond knurling prevent rotational slippage and axial dislocation under intense cyclic pressure.
Potable Water Safe
Compliant with NSF/ANSI 61 and European drinking water directives, offering dezincification resistance (DZR) and zero toxic leaching.
Technical Specifications of Brass PPR Inserts
Our brass inserts for PPR pipe fittings are manufactured according to international DIN 16962 and ISO 15874 standards with strict optical micrometer tolerances (+/- 0.01 mm):
| Parameter | Standard Specification | Custom Options Available |
|---|---|---|
| Nominal Sizes | 1/2", 3/4", 1", 1-1/4", 1-1/2", 2" (DN20, DN25, DN32, DN40, DN50, DN63) | Custom sizes up to 4" (DN110) per engineering drawings |
| Thread Types | Female Thread (Parallel BSPP - ISO 228), Male Thread (Tapered BSPT - ISO 7, NPT - ANSI B1.20.1) | Metric ISO threads (M14 to M64), UNC/UNF Unified National threads |
| Material Grades | CW617N (CuZn40Pb2), CW614N (CuZn39Pb3), C36000 Free-Cutting Brass, C37700 Forging Brass | Lead-Free Brass (<0.1% Pb), DZR Brass (CW602N), DHP Copper alloys |
| Knurling Profiles | Heavy Diamond Knurl, Straight Longitudinal Ribs, Reverse Helical Grooves | Custom knurl pitch, multi-step undercut collars, double hex flanges |
| Surface Finish | Natural Brass Cleaned & Passivated, Nickel Plated (2 to 5 microns), Chrome Plated | Tin plating, electro-polishing, ultrasonic degreasing |
| Operating Pressure | PN16, PN20, PN25 (burst testing exceeds 40 bar) | High-pressure specialized industrial grades |
| Tolerances | Precision CNC Turned to ±0.01 mm on critical seating dimensions | 100% Go / No-Go plug gauge verified thread profiles |
Applications of Brass PPR Pipe Fitting Inserts
Potable Water Plumbing
Hot and cold residential & commercial water distribution lines requiring non-toxic, long-life metallic threads.
Hydronic Heating Systems
Underfloor radiant heating, radiator manifolds, and solar thermal loops with high thermal expansion stability.
HVAC & Chilled Water
Central air conditioning condenser lines, fan coil transitions, and district cooling distribution.
Industrial Compressed Air
Compressed air networks and aggressive chemical transport lines demanding corrosion-proof integrity.
Brass PPR Insert Product Gallery
Female Threaded PPR Insert
Male Threaded PPR Insert
Deep Ribbed Collar PPR Insert
Heavy Duty Hexagonal PPR Insert
Frequently Asked Questions – Brass PPR Inserts
We primarily manufacture PPR inserts from European standard CW617N (CuZn40Pb2) and CW614N (CuZn39Pb3) brass alloys, which provide superior mechanical strength and thermal expansion compatibility with polypropylene. For potable drinking water applications requiring stringent health compliance (NSF/ANSI 61 and European 4MS guidelines), we also supply lead-free ECO brass alloys containing less than 0.1% lead.