Mark 58FT/58A
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Cage Trim Back Pressure Regulators CRN Registration Number Available Mark 58FT installation – designed to be installed in a "T" fashion such that the fluid normally flows in one side and out the other side, with the flow being relieved through the bottom bypass when the pressure exceeds the setting. Mark 58A installation – designed to be installed with one side port as an inlet and the other side port plugged with the flow being relieved through the bottom bypass when the pressure exceeds the setting. • Easy to maintain and service – remove bottom entry cage to access plug; diaphragm accessible from top • Large effective diaphragm area – reduces droop for increased accuracy and sensitivity • Large orifices and body passages – provides high flow capacities • "Tight Shutoff" – choice of hard (ANSI CL IV) or soft (ANSI CL VI) bubble tight seats • Versatile application – use on steam, air, gas liquids or chemicals MK58A installation Jordan Valve, a division of Richards Industries 3170 Wasson Road • Cincinnati, OH 45209 513.533.5600 • 800.543.7311 • 513.871.0105 (f) info@richardsind.com • www.jordanvalve.com Mark 58FT/58A Cage Trim Back Pressure Regulators The Mark 58 is available in sizes up to 2" (DN50) in a wide variety of body materials. Diaphragms can be either Stainless Steel or elastomer. Low flow versions with Cv values as low as 0.21 (0,18 Kv) are available in certain sizes. Back Pressure Regulators

Mark 58FT/58A Cage Trim Back Pressure Regulator Specifications Sizes: 1/4" through 2" (DN8 through DN50) End Connections Inlet & Flow Thru • Threaded — FNPT, BSPT, BSPP • ANSI Flanges — 150#, 300# (1/2" – 2") • DIN Flanges — PN10/16, PN25/40 (1/2" – 2") • See accessories for bottom/bypass connections other than FNPT Body Materials • Ductile Iron • Bronze • Carbon Steel • Stainless Steel Maximum Inlet Pressure: 300 psi (20,7 bar) Hard Seat Plug • 17-4 plug with EPDM (Option 'H') -20°F to 500°F (-29°C to 260°C) • 17-4 plug with Viton (Option 'F') -20°F to 400°F (-29°C to 204°C) Stem: 17-4 Ph...

Mark 58FT/58A Cage Trim Back Pressure Regulator Dimensions • Threaded Ends – inches (metric) • Flanged Ends – inches (metric) Size Flange (DN) ANSI (PN)* Standard bottom/bypass is FNPT per chart. See accessories for optional connections. * Other configurations available, consult factory Ordering Schematic Model No Body Mat'l Body Material Ductile Iron Carbon Steel (WCB) Stainless Steel (CF8M) Bronze Model Flow thru installation Angle flow installation End Connections NPT BSPT BSPP FSW 150# FE 300# FE PN10 DIN FE PN16 DIN FE PN25 DIN FE PN40 DIN FE Non-Standard Note: Standard bottom/bypass...

Mark 58FT/58A Cage Trim Back Pressure Regulator Ordering Schematic (Con't) Model No Body Mat'l Plug Seat Material Buna-N Viton EPDM Hard/EPDM Hard/Viton Non-Standard Diaphragm Buna-N EPDM Jorlon 316SST Viton Non-Standard Actuator 1/4", 3/8", 1/2" (DN8, DN10, DN15) S6 Diaph/Ranges 20-50 & below VI, BN, & JL Diaph/Ranges 20-50 & below S6 Diaph/Ranges 40-200 & above VI, BN, & JL Diaph/Ranges 40-200 & above Non-Standard 3/4", 1" (DN20, DN25) For Metal Diaph (S6) All Ranges VI, BN, & JL Diaph/Ranges 5-22 & below VI, BN, & JL Diaph/Ranges 15-105 & above Non-Standard 1-1/4", 1-1/2", 2" (DN32,...