Globe Style Control Valve

The Mark ED Series is intended for general control applications over a wide variety of temperatures and pressure drops.  This design has an upper piston ring seal and metal-to-metal seating.

The Mark ET Series is intended for applications requiring low leakage rates with composition seating (TFE) for tight shutoff requirements or metal-to-metal seating for higher temperature capabilities. The valve plug has a two-piece upper seal.

Features & Benefits
  • Top entry cage design allows easy, in-line maintenance
  • Balanced Plug allows the use of smaller actuators
  • Characterized flow options including equal percentage, linear, and quick opening
  • Available in a variety of body and trim materials make the Mark E Series suitable for a variety of applications including liquids, gasses or steam
  • Cage guiding allows the Mark E to handle high pressure drops while providing greater plug stability
  • Sour Service Capability: Optional NACE MRO175/ISO15156-2009
  • Tight shutoff

Size: 8″

End Connections:

  • ANSI Flanges – Class 150. 300, 600
  • Raised Face or Ring Type Joint Flanges as per ASME B16.34 latest edition

Body Materials: LCC, WCB, WCC, WC9, C5, Monel, CF8M SST, additional materials may be available upon request

Trim Materials: 316SST, 416SST, 17-4PH, Alloy 6-Co.Cr-A, Cobalt, 316SST/Tungsten Carbide

Seats: Metal, PTFE


  • Mark ET: ANSI Class IV & V
  • Mark ED: ANSI Class II & III

Maximum Inlet Pressure & Temperature: consistent with ASME Class per ASME 16.34

Maximum Pressure Drops: all valves are capable of full rated pressure drops

Flow Characteristics: Quick opening, linear, equal percent

Trim Options: Noise abatement, Anti-cavitation

Flow Direction: 

  • Normally Down, Linear, Quick Opening, Equal Percent
  • Always up, Noise Abatement
  • Always Down, Anti-Cavitation

Valve Travel Indication: Valves are supplied with Visual Travel Indicator


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