Globe/Cage Style Regulators > Mark 58 Series




![]() |
The Mark 58 back pressure regulator features three ports: a bypass outlet on the bottom, and two side ports which are directly connected to serve as dual inlets or as inlet and outlet for through-flow. It can be installed in a "T" fashion such that the fluid normally flows in one side and out the other side, wit the flow being relieved through the bottom bypass when the pressure exceeds the setting. It can also be installed with one side port as an inlet and the other side port plugged. In this arrangement when the inlet pressure exceeds the set point, fluid is relieved through the bottom port. 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 yeastier. Low flow versions with Acv values as low as 0.26 (2,24 Kv) are available in certain sizes. |
Features & Benefits




![]() |
CRN Registration Number Available |
![]() |
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 — your choice of hard (ANSI Class IV) or soft (ANSI Class VI bubble-tight) shutoff |
![]() |
Versatile application — use on steam, air, gas, liquids or chemicals |
Download More Information


Mark 58 Series Cut sheet
Mark 58 Series Dimensional Drawings
Mark58 Series I & M
Condensed Catalog
For More Information



Find Your Local Representative
Request Literature
Catalog Navigator


Mark 58 Series Cut sheet
Mark 58 Series Dimensional Drawings
Mark58 Series I & M
Condensed Catalog
For More Information

Find Your Local Representative
Request Literature
Catalog Navigator




