Linde North America, Inc. Two Stage High Purity Regulator F7220 Series

The F7220 Series two stage, high purity regulators are designed for corrosive analytical and process applications requiring precise, stable, delivery pressure control. The two stage design yields a delivery pressure change of less than 0.04/100 psi inlet change. Convoluted stainless steel diaphragms provide excellent regulating characteristics and allow for internal purging. The metal-to-metal diaphragm seal prevents contamination by eliminating the need for a soft seal, and also provides a leak-rate design of less than 2 x 10-8 ccs helium. This minimizes cleanup time in purging and yields lower residual contaminant levels.