● Male part and liners in stainless steel threaded unions for the food industry are manufacturing to be used with stainless steel tube specified in ISO 2037 ● Welding type unions can be attached to the pipe ends by butt Welding. ● Expanding type unions can be attached to the pipe ends by expanding. But, recently it can be attached to the pipe ends by welding. ● Working pressure is 10㎏/㎠ or less ● Gasket : EPDM, NBR, SILICONE, TEFLON ● The standards of union has ISO(IDF), 3A, DIN, SMS, etc…