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Due to its vast engineering experience, Control Seal can deliver a wide range of products based on customer request.

Ram Type Drain Valve

A ram type drain valve, also known as piston or plunger drain valve, is a kind of drain valve that has a piston (plunger) type disc. Ram type drain valves guarantee full flow as the valve disc travels completely out of the flow path. It extends into the vessel when closed to prevent clogging by dislodging accumulated sludge. Ram type drain valves are used as drain for vessels, tanks, pipelines, etc.


  • sampling or flushing from vessel, tanks, pipelines, etc.
  • flanged or threaded connections
  • short stroke for open/close operation
  • compact, lightweight design, ideal for a limited space
  • manual (handwheel), pneumatic, electric or hydraulic operations


Ram type drain valves are used in many industrial/chemical application as the oil and gas industry, pharmaceuticals, manufacturing and marine. Ram type drain valves are ideal for slurry applications, as the inside of the valve is cleaned when the valve disc is traveled. Ram type drain valves can be used in demanding environments such as low and high temperature conditions.

Design standards

  • ISO 9001:2008
  • API 598
  • API 6D
  • API 6F
  • ASME B16.10
  • ASME B16.25
  • ASME B16.34
  • ASME B16.47
  • ASME B16.5