Inquiry (采购产品): low pressure check valves We need to treat the vapors coming off of an oil water separator using a carbon filter and will require something that will prevent backflow from the carbon filter back into the oil water separator. I think we will need a check valve that operates under low pressures. Any information or product recommendations that you might have would be greatly appreciated. **** Hidden Message ***** Nicole Gortian 08066 USA Company: Roux Associates, Inc. Phone: 856-423-8800 E-mail: ngortian@rouxinc.com **** Hidden Message ***** ngortian@rouxinc.com