Chemical Processing
Mark 50 Series ⟶
Self-Operated Back Pressure Regulator
Mark 501/502 Series ⟶
High Flow
Mark 50HP Series ⟶
High Pressure
Mark 51 Series ⟶
High Sensitivity
Mark 52 Series ⟶
Internally Piloted
Mark 53/54 Series ⟶
Differential, Jorlon Diaphragm
Mark 55 Series ⟶
Upstream Vacuum, Jorlon Diaphragm
Mark 56/560 Series ⟶
Dome Loaded, High Accuracy
Mark 57 Series ⟶
Pilot-Operated, Superior Accuracy
Mark 575 Series ⟶
Wafer Style, Jorlon Diaphragm
Mark 58FT/A Series ⟶
Cage Trim, Dual Inlet & Outlet for Through-Flow
Mark 58G Series ⟶
Globe Style, Back Pressure Regulating Valve
Mark 586FT/586A Series ⟶
Dome Loaded
Mark 508 Series ⟶
Direct Operated Tank De-pad Regulator or
Gas Back Pressure Regulator for low pressures
3/4″ – 2″ (DN20 – DN50)
Mark 518 Series ⟶
Direct Operated Tank De-pad Regulator or
Gas Back Pressure Regulator for low pressures
1", 2", 4" (DN25, DN50, DN100)
Mark 60 Series ⟶
Self-Operated Sliding Gate Pressure Regulator
Mark 601/602 Series ⟶
Self-Operated, High Flows
Mark 60HP Series ⟶
High Pressure Regulator
Mark 61 Series ⟶
High Sensitivity
Mark 62 Series ⟶
Internally Piloted Regulator
Mark 63/64 Series ⟶
Differential, Jorlon Diaphragm
Mark 65 Series ⟶
Downstream Vacuum Regulators
Mark 66/660 Series ⟶
Dome Loaded, High Accuracy
Mark 67/69 Series ⟶
Pilot-Operated, High Flow
Mark 675 Series ⟶
Wafer Style, Jorlon Diaphragm
Mark 68G Series ⟶
Globe, High Capacity, Accurate
Mark 68HP Series ⟶
High Pressure Regulator
Mark 686G Series ⟶
Air-Loaded, Globe Trim, ANSI IV or VI
Mark 608 Series ⟶
Direct Operated Tank Padding Regulator or
Gas Pressure Reducing Regulator for Low Pressures
1-1/2" - 2" (DN40 - DN50)
Mark 608BP Series ⟶
Direct Operated Tank Padding Regulator or
Gas Pressure Reducing Regulator for Low Pressures
3/4" - 1" (DN20 - DN25); Balanced Plug - Good for High Inlet Pressures
Mark 608IS Series ⟶
Direct Operated Tank Padding Regulator or
Gas Pressure Reducing Regulator for Low Pressure
3/4" - 1-1/4" (DN20 - DN32); Internal Sensing - Good for Low Inlet Pressure
Mark 627 Series ⟶
Gas Regulator, Self-Operated, High Inlet Pressure
Mark 630 Series ⟶
Gas Regulator, Self-Operated, High Inlet Pressure
Mark 687 Series ⟶
Piloted Pressure Reducing Regulator for
Critical Low Pressure, High Flow Applications
1-1/2" - 2" (DN40 - DN50); Balanced Plug
Mark 70 Series ⟶
Sliding Gate Jorlon Diaphragm Control Valve
Mark 701/702 Series ⟶
Sliding Gate Control Valve for High Flow, Higher Cv's (Kv's)
Mark 78 Series ⟶
Globe Style, Accurate Performance
Mark 75 Series ⟶
Wafer Style, Motor Operated, Very Precise
Mark 75HW Series ⟶
Wafer Style, Hand Operated, Precise Adjustment
Mark 75MV Series ⟶
Wafer Style, Motor Operated
Mark 75PTP Series ⟶
Piston Operated with Smart Positioner
Mark 79/79MX Series ⟶
Three-Way, Bypass or Mixing
Mark 33 Series ⟶
Boiler Feedwater Control Valve
Mark 37 Series ⟶
Motor Operated
Mark 39 Series ⟶
Motor Operated Three Way
Mark 5108 Series ⟶
Piloted
Mark 688 Series ⟶
Piloted Tank Padding Regulator or
Gas Pressure Reducing Regulator for Low Pressures
1" - 2" (DN25 - DN50)
Mark 695 Series (3/4″ – 1″) ⟶
Piloted Tank Padding Regulator
3/4", 1" (DN20, DN25); External Pilot
Mark 695 Series – 2″ ⟶
Piloted Tank Padding Regulator
2" (DN50); Internal Pilot
Mark 695X Series ⟶
Direct Operated Tank Padding Regulator
1/2" - 3/4" (DN15 - DN20)
Mark 608BPM Series ⟶
Pressure Regulators
Mark 508MM Series ⟶
Self-Operated
Mark 608MM Series ⟶
Pressure Regulators
Mark 608UBAN Series ⟶
Pressure Regulators
Mark 6127 Series ⟶
Piloted, Liquid Pressure Regulating Valves
Y-Type Strainers ⟶
Line Strainers
Mark 80 Series ⟶
Self-Operated, No External Power Source
Mark 801/802 Series ⟶
Self-Operated, High Flow
Mark 82 Series ⟶
Internal Piloted
Mark 85 Series ⟶
Controlled Failure Option
Mark 86 Series ⟶
Ambient Temperature
Mark 87 Series ⟶
Externally Piloted
Mark 89/89MX ⟶
Three-Way, Diverting or Mixing Service