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TESCOM™ Anderson Greenwood Instrumentation Series M5K/M5AK/M5YK Gauge Valves
Series M5K/M5AK/M5YK Gauge Valves
Root isolation valves with outside screw and yoke, bolted bonnet construction for pressures up to 6,000 psi (414 barg)


  • True 4-bolt bonnet design provides easy access to the packing gland. Stem threads are completely isolated from the process.
  • Protective stem bellows and cap protects against atmospheric contamination, increases valve life and helps contain stem lubricant, reducing thread galling.
  • Compact design minimizes space requirements. Lower valve weight improves connection strength and reduces induced bending moments.
  • Multi-port outlet means fewer fittings, fewer leak points and reduced installation cost.
  • Standard CF8M investment cast yoke resists corrosion, increasing valve life.
  • Single-piece yoke design eliminates stem binding.
  • Widely compatible graphite or PTFE flange gasket ring minimizes bonnet-to-body gasket deterioration.
  • Free-swivelling ball end stem design (M5K, M5YK) or non-rotating plug design (M5AK) provide bubble-tight valve closure without metal seat galling and low seating torque.
  • Integral hard back seat (M5K, M5YK) protects against stem blowout and provides alternate sealing for longer packing life.
  • Optional replaceable soft seat design (M5K, M5AK) provides bubble-tight seat with a fully roddable, bi-directional flow.


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