{"product_id":"pe-peg-pneumatic-push-in-tee-fittings-4-10mm-reducing-equal","title":"PE\/PEG Pneumatic Push-In Tee Fittings – 4–10mm Reducing \u0026 Equal Tee for Air Compressor \u0026 Fluid Systems","description":"\u003ch2\u003ePE\/PEG Pneumatic Push-In Tee Fittings – Equal \u0026amp; Reducing, 4–10mm OD Tubing\u003c\/h2\u003e\n\n\u003cp\u003ePE (equal tee) and PEG (reducing tee) push-in pneumatic fittings provide fast, tool-free connections for splitting or reducing pneumatic and fluid circuits. The PE series connects three tubes of the same diameter; the PEG series connects tubes of two different diameters — allowing a larger supply line to branch into a smaller distribution line without additional reducers. Both series use a barb-lock mechanism for secure, semi-permanent connections in compressed air, coolant, and light fluid systems.\u003c\/p\u003e\n\n\u003ch3\u003eAvailable Part Numbers \u0026amp; Configurations\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePE4:\u003c\/strong\u003e Equal tee, 4mm × 4mm × 4mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePEG6-4:\u003c\/strong\u003e Reducing tee, 6mm × 6mm × 4mm (6mm main, 4mm branch)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePEG8-4:\u003c\/strong\u003e Reducing tee, 8mm × 8mm × 4mm (8mm main, 4mm branch)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePEG8-6:\u003c\/strong\u003e Reducing tee, 8mm × 8mm × 6mm (8mm main, 6mm branch)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePEG10-6:\u003c\/strong\u003e Reducing tee, 10mm × 10mm × 6mm (10mm main, 6mm branch)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePEG10-8:\u003c\/strong\u003e Reducing tee, 10mm × 10mm × 8mm (10mm main, 8mm branch)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eKey Specifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBody Material:\u003c\/strong\u003e PE (polyethylene) or PA (nylon) — variant dependent\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eConnection Type:\u003c\/strong\u003e Push-in barb lock (semi-permanent)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTubing Compatibility:\u003c\/strong\u003e Nylon (PA), polyurethane (PU), polyethylene (PE) rigid OD tubing\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWorking Pressure:\u003c\/strong\u003e 0–1.0 MPa (0–145 PSI)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTemperature Range:\u003c\/strong\u003e 0°C to +60°C\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMedia:\u003c\/strong\u003e Compressed air, water, light non-corrosive fluids\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003ePE vs PEG — Naming Convention Explained\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePE\u003c\/strong\u003e = Push-in Equal tee. All three ports are the same diameter. Use when all three connected tubes are the same size.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePEG\u003c\/strong\u003e = Push-in Equal-to-Greater reducing tee. Two ports are the larger (main line) diameter; one port is the smaller (branch) diameter. The format is \u003cstrong\u003ePEG[main]-[branch]\u003c\/strong\u003e: PEG8-4 means 8mm main ports, 4mm branch port.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat Questions Does This Product Answer?\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cem\u003e\"What is the difference between PE and PEG pneumatic fittings?\"\u003c\/em\u003e — PE is an equal tee (all ports same size). PEG is a reducing tee (two large ports + one small branch port). PEG fittings eliminate the need for a separate reducer + equal tee in reducing branch circuits.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cem\u003e\"Can I use these fittings for compressed air at 8 bar?\"\u003c\/em\u003e — No. These fittings are rated to 1.0 MPa (10 bar \/ 145 PSI) maximum. For systems operating at 8 bar (0.8 MPa), these fittings are within rating but leave minimal safety margin. For industrial compressed air at 8–10 bar, consider metal body push-to-connect fittings (SMC, Festo, Parker) rated to 1.5–2.0 MPa.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cem\u003e\"How do I choose between a reducing tee and two separate fittings?\"\u003c\/em\u003e — A PEG reducing tee is more compact, lower cost, and has fewer potential leak points than a straight reducer + equal tee combination. Use PEG when the branch line is smaller than the main supply line.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cem\u003e\"Are these fittings reusable?\"\u003c\/em\u003e — Barb-lock fittings are semi-permanent. Tubing can be removed by cutting close to the fitting and extracting the stub with pliers, but the fitting may not reseal reliably after repeated removal. For reusable connections, use push-to-connect fittings with a collet release mechanism.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTypical Applications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAir compressor circuits:\u003c\/strong\u003e Branching main air supply to multiple tools or zones\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCNC coolant systems:\u003c\/strong\u003e Splitting coolant supply to multiple nozzles with different flow requirements\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAquariums \u0026amp; hydroponics:\u003c\/strong\u003e Air pump distribution to multiple tanks or grow beds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e3D printing:\u003c\/strong\u003e Bowden tube routing, multi-zone cooling circuits\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIrrigation:\u003c\/strong\u003e Drip line distribution with mixed tube sizes\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eInstallation Notes\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eCut all tubing ends square — angled cuts reduce barb contact area and cause leaks\u003c\/li\u003e\n  \u003cli\u003ePush tubing firmly until it contacts the internal stop — partial insertion is the primary cause of blowout under pressure\u003c\/li\u003e\n  \u003cli\u003eFor the reducing port (smaller branch on PEG fittings), ensure the smaller tube is fully seated before pressurizing\u003c\/li\u003e\n  \u003cli\u003eDo not exceed 60°C — PE body softens and loses grip on tubing OD at elevated temperatures\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003ePackage Contents\u003c\/h3\u003e\n\u003cp\u003eQuantity as selected above — PE or PEG push-in tee fittings in the configuration specified.\u003c\/p\u003e","brand":"Cable Parts Online","offers":[{"title":"PEG6-4-6 \/ 50 PCS","offer_id":47850792485109,"sku":"14:496#PEG6-4-6;183:202360806#50 PCS","price":55.93,"currency_code":"USD","in_stock":true},{"title":"PEG6-4-6 \/ 100 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