LINEAR GLOBE/ANGLE CONTROL VALVES - MARK ONE™ THREE-WAY

BRAND: Valtek
A three-way version of the Mark One, this valve is used for combining or diverting service. Like the Mark One, it offers superior performance in liquid and gaseous services in simple, rugged design.
  • Power
  • Oil & Gas
  • Chemical
  • Water
  • General Industry
  • Nuclear
  • Conventional Steam
  • Geothermal
  • Combined Cycle
  • Concentrated Solar Power
  • Biomass and MSW
  • Upstream Exploration & Production
  • Midstream Transportation
  • Downstream Processing
  • Basic
  • Specialty
  • Biofuels
  • Pharmaceutical
  • Water
  • Waste Water
  • Agriculture
  • Water Management
  • Pulp & Paper
  • Mining
  • Steel & Primary Metals
  • Food & Beverage
  • Corn Wet Milling & Ethanol
  • Other Industries
Standards and Certifications


  • IS0 9001:2008
  • PED Directive 97/23/EC
  • ATEX QAN Quality Registration
  • IECEX QAR Quality Registration
  • SIL Certification
  • CRN Certification (Canadian Registration)
  • EMC Directive 2004/108/EC
  • ATEX Directive 94/9/EC
  • CE Mark
  • SSOV (FM Safety Shut-off Valve Fuel Service
  • API 607 Fire Safe


Electronic Certifications for Logix Positioners Mounted on Mark Series Valves


  • CSA
  • FM
  • SIRA
  • TR CU
  • INMETRO
  • TESTSAFE
  • KOSHA
  • CCOE


Design and Material Standards for Mark Series Valves


  • ASTM B16.5
  • ASTM B16.9
  • ASTM B16.10
  • ASTM B16.11
  • ASTM B16.25
  • ASTM B16.34
  • ASTM A (material)
  • ASTM SA (material)
  • -196°C to 400°C
  • (-320°F to 752°F)
  • Reliable, predictable performance provided by the position accuracy, repeatability and assured response of the stiff and high-thrust, spring-cylinder actuator
  • Enhanced process control due to exceptionally tight shutoff
  • Reduced inventory carrying costs owing to a high degree of interchangeability with Mark One Series valves
  • Fast, easy and inexpensive maintenance facilitated by compact, lightweight body and actuator package plus clamped-in seat and top-entry trim
Secured By miniOrange