Mark 508 Series – Tank Blanketing Valve

The Mark 508 Gas Back Pressure Regulator is the ideal valve for low-pressure gas regulation. The Mark 508 works in conjugation with the Mark 608 in a low-pressure tank blanketing valve system. 

The Mark 508 can be used to vent gas from the tank to prevent the blanketing pressure from rising to a level that could damage the tank while maintaining a small, constant flow to keep the blanket fresh. During filling, the Mark 508 opens to allow gas to escape as the vapor space in the tank grows smaller. 

  • Body rating up to 150 psi (10.3 bar)
  • Rugged, heavy-duty design – Emergency outlet pressure may reach 100% of inlet pressure without damaging valve
  • 360° body orientation – Valve can be installed in any position and easily repositioned while in-line (3/4” – 1-1/4”)
  • Easy maintenance – Seat and plug can be inspected without removing body from the line (3/4” – 1-1/4”)
  • Completely self-operated – No external power source required
  • Tight shutoff – Soft elastomer plug provides ANSI Class VI shutoff

Data Sheet
Mark 508 Series Data Sheet

I & M
Mark 508 (Small) Series I & M
Mark 508 (Large) Series I & M

Dimensional Drawing
Mk508 Series Dimensional Drawing

Jordan Valve Product Guide
Jordan Valve Product Guide – A4

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