Reducing piece POM, Supports 6 mm, for hose exterior Ø 4 mm - Riegler 136481

Reducing piece POM, Supports 6 mm, for hose exterior Ø 4 mm, working pressure -0.95 to 16 bar Lightweight, push-in fittings distinguished by high strength, toughness, resistance to abrasion and impact resistance - ideal for a wide range of applications. All our push-in fittings made of POM have the following approvals: drinking water DVGW, KTW, FDA and NSF. Plastic and metal tubes are connected together quickly and easily. Suitable for compressed air or liquids, with good resistance to a large number of chemicals. Please contact us for critical applications.

Standards and origin

• Customs tariff number: 39174000
• Country of origin: GB

About Reducers

A reducer joins two different push-in sizes so a thinner tube can be connected to a larger line without replacing the whole run of pipework. The group covers tube outside diameters from 5 to 28 mm and works between -0.98 and 16 bar.

What matters when choosing

• Tube O.D. 5 to 28 mm on the push-in side and for tube O.D. 4 to 8 mm on the outlet side: both sizes have to match the existing lines, and the smaller cross section limits the flow.
• Series speedfit or value line: the series sets the design and how well the part combines with the other push-in fittings in the system.
• Material acetal polymer (POM) or nickel-plated brass: brass for a small, space-saving build at mechanically loaded points, POM for light connections with high impact strength.
• Working pressure from -0.98 or -0.95 bar up to 10 or 16 bar: the lower limit in the vacuum range allows use in suction lines, the upper limit differs per item and has to stay above the system pressure.
• Operating temperature -20 °C to 80 °C on the compressed air versions with their silicone-free NBR seal.

Typical applications

• Connecting a thinner tool hose to a larger ring main
• Adapting an equipment port to existing pipework without rebuilding it
• Adding single draw-off points to an installed compressed air network
• Vacuum lines on handling systems working under negative pressure
• Paint and coating areas where silicone-free seals are required

The 21 items are made of acetal polymer (POM) or nickel-plated brass, and the compressed air versions are sealed with silicone-free NBR. Production takes place in Great Britain and Italy.