Combined function valve MAG-S

Fast acting

The combined function valve MAG-S is a fast-acting tilting disc valve offering fast response to flow change, tight shut-off, low pressure loss, and excellent flow characteristics.

This check valve is often used in steam or gas applications to protect the steam turbine or compressor against backflow.

Numerous installations in gas cracking units confirm high reliability in critical services


  • Excellent sealing characteristics
  • Low pressure loss coefficients
  • Axial pressure balanced shaft seals for low friction
  • Additional screw safety device
  • Robust construction
  • Minimum maintenance


  • Manual or electrical over-ride via free travel coupling
  • Pneumatic or hydraulic actuator
  • Steam purge at seat
  • Heating jacket
  • Butt weld ends

Features of the combined function valve MAG-S

  • Quick closing check valve with internal balance weight in a pressurized external housing
  • Laminated metal-to-metal sealing
  • Triple offset design with inclined conical sealing system
  • Opened by flow
  • Auto-closing
  • Ffast response at low differential pressure


ADAMS Product range

FCC brochure

Ethylene brochure