Inquiry (采购产品): Back Pressure Regulator? Dear Sirs: I suppose I need a back pressure regulator for the prototype of an invention I am developing. The valve I need must support a working environment of 400° F. It will be managing hot gases. It must keep very stable the pressure behind it at 5 PSI, or even lower, up to 3 PSI. The tolerance regarding accuracy is very low, for example: + (-) 0.2 PSI. The pressure behind the valve is hold in a metallic container. The valve must be the most concise possible. The source of pressure behind the valve is very, very variable and the valve must react in real time. The flow of gases is relatively low. It ranges from one cubic feet per second to six cubic feet per second. If you need more information, please let me know. As I wrote, I don’t know if this valve is a back pressure regulator, in any case if you are able to provide me only one such valve for this time, excellent. Otherwise your advices about where to find it would be very appreciate. My hearing English is not as good as writing or speaking, then if you decide to call me, please be patient and talk to me the most clearly possible and slowly as well. Best regards, Luis González 220 W Bell Rd. # 2126 Phoenix, AZ 85023 602 547 0525 **** Hidden Message ***** Luis Gonzalez AZ 85023 USA Company: None Phone: 602 547 0525 E-mail: luixol@hotmail.com **** Hidden Message ***** luixol@hotmail.com