our thirty six and fifty-two round models are designed for flow rates up to 1040 gpm. Housings accept double-open-end style cartridges. Options include 304l or 316l stainless steel with swing bolt closure and lifting davit. Design pressure 150 psi (10 bar) @ 300° f (149° c). Standard inlet and outlet connections for the 36 & 52 fos series is 6" flanged, with many other options available by special order. Standard finish is poly-coat over stainless. All thirty six and fifty-two round models are standard with heavy duty stainless steel mounting legs and fda grade buna-n gasket.