shuangzhan machinery (SSWKTECH) as a professional manufacture of sanitary stainless steel valves, such as butterfly valve, ball valve, divert valve, pneumatic valve, sample valve, diaphragm valve, air pressure relief valve, etc, we supply quality stainless steel spunding valve, this kind of valve can be assembly with pressure gauge or not, the pressure gauge is English version. For the sake of serving more brewery, all of the fittings used on this air breath/pressure relief valve are precision, food grade finish, especilly the plastic column which used to keep water, you can even step on it, very toughed.
1. food grade 304 stainless steel
2. 1.5" tri clamp end
3. 0-2.2bar
4. blue or black ball
pls don't hesitate to send your inquiry, my email is rowan@newtekindustry.com