Reducing nipple »NonPlusUltra«, G1/4 o., G1/8 i., PU10 - Riegler 132186

Reducing nipple, chamb. o-ring »NonPlusUltra«, G 1/4 o., G 1/8 i., AF 17, FPM (FDA), p = -0,99…25 bar, T = -20…150°C, 1.4404, PU10 The NonPlusUltra series combines excellent material quality with the best workmanship. All components are characterized by maximum tightness and optimized flow. Made entirely of corrosion-free and acid-resistant stainless steel with a surface roughness (Ra) < 0.8, they are extremely robust and easy to clean (can also be sterilized). Movable fittings are suitable for continuous movement due to a special swivel mechanism. The stainless steel unions have a wide range of applications, for example in process engineering, food and pharmaceutical industries, water-cooling, lubrication, gases, vacuum and clean room (suitable cleaning of the parts is the responsibility of the user). They are ideal for use in conjunction with our PUR hoses for food contact (FDA). Available on request with EPDM seals, EPDM seals with drinking water approval, suitable for cleanroom class 3 according to DIN EN ISO 14644-1 and with colored ceramic coding.

Technical data

Standards and origin

• Standard thread: DIN EN ISO 228-1
• Customs tariff number: 73072910
• Country of origin: DE

About Reducing nipples

Reducing nipples join two thread sizes, male on one side and female on the other. That lets a component with a small port sit on a larger line without changing the pipework. The 201 items cover M3 to G 2 female and M5 to G 3 male, with working pressures reaching 60 bar depending on version.

What matters when choosing

• Fix the thread pairing first. Female sizes documented run from M3 to G 2 including Rp 1, male sizes from M5 to G 3 including R 1/2.
• Mind the thread standard. Both DIN EN ISO 228-1 and ISO 7-1 appear in the range, and a nipple to the wrong standard will not seal reliably.
• Choose the material from medium and environment. Brass CW614N bright or electroplated nickel for compressed air, stainless steel 1.4404 and 1.4571 for corrosive media and cleaning processes.
• Check pressure and temperature. Working pressure is stated as 20 to 60 bar, individual items at 60 bar operating pressure, and operating temperature reaches 150 °C.
• The series separates standard from special cases. value line covers ordinary requirements, while NonPlusUltra adds the captive FPM O-ring in FDA-compliant quality on the stainless steel version.

Typical applications

• Adapting port threads on valves and air preparation units
• Fitting pressure gauges and instruments to existing connections
• Rebuilding and extending pipework already installed
• Systems carrying oil, grease or neutral liquids in the brass version
• Cleaning and food areas in stainless steel with FPM sealing

Documented thread standards are DIN EN ISO 228-1 and ISO 7-1, and documented materials are brass CW614N and stainless steel 1.4404 or 1.4571. The O-ring version of the NonPlusUltra series seals with FPM in FDA-compliant quality.