Union nut - Import export

Due to the 24° taper (with o-rings) located on the fitting body itself, STAUFF Connect Tube Fittings with 24° Taper / O-Ring (DKO) represent a logical further development of traditionally available adjustable standpipe tube fittings with factory-assembled cutting rings and union nuts. The retention function is assured by a special swivel nut with a wire-pin located in a groove, which is factory-assembled by the manufacturer. The embedded o-ring on the 24° taper ensures a high level of protection against leakage. Thanks to the large number of available types and designs, almost all common types and combinations of adjustable fittings can be implemented. With regards to their dimensioning and general design, STAUFF Connect Tube Fittings with 24° Taper / O-Ring (DKO) fully comply with the latest versions of the ISO 8434-1 standard. They are thus completely interchangeable with conventional adjustable standpipe tube fittings.

The innovative SANHA installation system NiroTherm® combines high-quality NiroTherm® press fittings with a black sealing ring made from EPDM (=ethylene propylene diem rubber) and NiroTherm® stainless steel system tubes. The system is produced from the material 1.4301 (AISI 304). Due to the well-known corrosion resistance of stainless steel, NiroTherm® offers installers therefore a real alternative compared to conventional steels when it comes to closed systems in humid atmospheres such as screed. Since it needs considerably less isolation against humidity*, the installation is faster and labour costs accordingly lower. In addition to the system description, NiroTherm® system press fittings are marked on the outside with a red dot. * This does not affect thermal insulation necessitated by national energy efficiency laws. NiroTherm® system pipe, material no. 1.4301, reduced wall thickness, in 6 m lengths, for cooling, compressed air, heating and industrial applications

The piping system consists of high-grade NiroSan® press fittings with an EPDM (=ethylene propylene dien rubber) moulded sealing ring and NiroSan® stainless steel system pipes according to EN 10312. All NiroSan® press fittings are made from the premium stainless steel type 1.4404 / AISI 316L (for pressing components) and 1.4408 (for precision cast threaded stainless steel components). The material 1.4404 contains at least 2.3 % molybdenum, yet less carbon than the conventional type 1.4401. Thereby these materials are not only of equal value but in addition, material 1.4404 / 316L stands out on account of its considerably higher corrosion resistance. The NiroSan® press system and its components are certified in accordance with the rules and regulations of all important European certification bodies.

The piping system consists of high-grade NiroSan® press fittings with an EPDM (=ethylene propylene dien rubber) moulded sealing ring and NiroSan® stainless steel system pipes according to EN 10312. All NiroSan® press fittings are made from the premium stainless steel type 1.4404 / AISI 316L (for pressing components) and 1.4408 (for precision cast threaded stainless steel components). The material 1.4404 contains at least 2.3 % molybdenum, yet less carbon than the conventional type 1.4401. Thereby these materials are not only of equal value but in addition, material 1.4404 / 316L stands out on account of its considerably higher corrosion resistance. The NiroSan® press system and its components are certified in accordance with the rules and regulations of all important European certification bodies.

The installation system consists of high-quality NiroSan® Gas press fittings with yellow moulded sealing rings made of HNBR (hydrogenated nitrile butadiene rubber) and NiroSan® stainless steel system pipes according to EN 10312, DVGW-Arbeitsblatt GW 541 and EN 10312. All NiroSan® Gas press fittings are made of the material 1.4404 / AISI 316L (for moulded fittings) and 1.4408 (for threaded fittings and stainless steel precision castings). The material contains at a minimum of 2.3 % molybdenum and a lower carbon content than the conventional steel quality 316. Thereby these materials are not only of equal value but in addition, material 1.4404 / 316L stands out on account of its considerably higher corrosion resistance. The NiroSan® Gas press system is certified in accordance with and all important European certification bodies.

The installation system consists of high-quality NiroSan® Gas press fittings with yellow moulded sealing rings made of HNBR (hydrogenated nitrile butadiene rubber) and NiroSan® stainless steel system pipes according to EN 10312, DVGW-Arbeitsblatt GW 541 and EN 10312. All NiroSan® Gas press fittings are made of the material 1.4404 / AISI 316L (for moulded fittings) and 1.4408 (for threaded fittings and stainless steel precision castings). The material contains at a minimum of 2.3 % molybdenum and a lower carbon content than the conventional steel quality 316. Thereby these materials are not only of equal value but in addition, material 1.4404 / 316L stands out on account of its considerably higher corrosion resistance. The NiroSan® Gas press system is certified in accordance with and all important European certification bodies.