Mark 908 series from Steriflow is an inline style sanitary low pressure blanketing (gas overlay) pressure reducing valve suitable for medium to large stainless and SUD vessels.
Designed specifically to provide accurate blanketing and purge pressure control on very low pressure stainless steel and single use systems.
Mark 908 is pilot operated and is able to responds to very small changes in tank vessel pressure by throttling open or closed to maintain the pressure set point.
Mark 908 features an all 316L bar stock construction, with a 20 Ra µin (0.5 Ra µm) internal surface finish.
Mark 908 is available in either DN20 or DN25 sizes (3/4” or 1”) with Tri-Clamp, tube weld end, FNPT or optional pipe flanges. Five Cv's are available, either: 1, 2, 4, 7.5*, 10* (* 7.5 Cv and 10 Cv available in 1" size only).
Pressure regulation is accurate down to 1.25 mbar with four available spring rates dependant on process requirements up to a maximum control pressure of 103 mbar.
Valve shutoff is ANSI Class VI.
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