Product Introduction
SMS Union Sanitary Union Fitting
Brief Introduction
SMS Union fittings are applicable to industrial fields such as food, chemicals, and pharmaceuticals.
Operation
Before connection, place the SMS-specific gasket into the U-shaped sealing groove of the SMS male threaded fitting, pre-thread the SMS round nut onto the SMS flat head, then screw the SMS round nut onto the SMS male threaded fitting. The gasket between the SMS flat head and the male thread is compressed to achieve connection and sealing.
Features of SMS Union Fittings
- Facilitates supporting and fastening with SFC safety clamps and FR sleeves.
- Electropolished surface makes it more suitable for hygiene industry requirements.
- Specially designed with an extended joint neck for easy installation.
- Inner wall roughness Ra < 0.6μm; DU fittings with inner wall roughness Ra < 0.4μm are available upon request.
- Manufactured from forged components.
- Wear-resistant tail core ensures longer service life of the hose assembly.
Applications
Industrial environments including food, beverage, chemical, pharmaceutical, and life sciences, as well as industries such as bioengineering, filtration, and water treatment technology.
Operating Temperature
-40℃/-40℉ to +150℃/302℉ (depending on the sealing material).
Material Options
316L stainless steel, 304 stainless steel, stainless steel lined with Teflon.
Assembly Methods with Flexible/Rigid Pipes
- Use SMS Union welded parts for welding with stainless steel pipes.
- Connect hoses with FR sleeves or SFC safety clamps.
- Connect to equipment using other thread adapters.
Working Pressure
6bar/87psi (stainless steel material, NBR seal, hydrostatic test at 20℃).



