Anderson Greenwood, AGCO, AGI, TESCOM, M9 Block and Bleed Instrumentation Gauge Valve, Needle Valve
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Anderson Greenwood (AGCO) M9 Block and Bleed Gauge Valves

In Stock Options

The Anderson Greenwood M9 block and bleed valve is the industry standard for the safe, compact, and economical isolation and venting of static pressure gauges and instrument installations. Engineered by TESCOM™ AGI / AGCO, this versatile block and bleed gauge valve features an integral metal-to-metal seated bleed plug, allowing technicians to safely vent pressure without breaking threaded connections.

To prevent lubricant washout and thread corrosion, the M9 utilizes a premium packing-below-threads design. The compact mini-valve bonnet assembly features a one-piece rotating stem with a ‘V’ tip, available in both hard and soft-seated configurations to ensure repetitive, bubble-tight shutoff.

As an authorized distributor, BriceBarclay maintains a deep, ready-to-ship inventory of the M9 series. Whether you need standard Carbon Steel (M9VIC) or 316 Stainless Steel (M9VIS/M9VDS) configurations with 1/2″ or 3/4″ connections, we have the exact block and bleed valve in stock to keep your facility running safely.

The AGCO M9 block and bleed gauge valve bonnet comes in three designs:

  • An adjustable PTFE stem packed bonnet which is suitable for panel mounting via external bonnet threads.
  • O-ring bonnet assemblies which use a FKM O-ring seal below the stem thread.
  • A graphite-packed bonnet suitable for temperatures of up to 1000°F (538°C) which is available for 316 SS valves only.
  • -70°F (-57°C) available on 316 PTFE and Graphite packed bonnets and integral, PEEK and PCTFE seats.
  • Delrin® Seats -40°F (-40°C)

Features

  • Packing below threads prevents lubricant washout, thread corrosion, process contamination and eliminates galling
  • Easily adjustable packing decreases replacement downtime
  • Metal-to-metal seated bleed plug for safe pressure venting without breaking threaded connections
  • Safety back seating prevents stem blowout or removal during operation, and provides a metal-to-metal secondary stem seal while in the fully open position
  • ENC plated 316 SS prevents galling or freezing of stem threads
  • Rolled stem, bonnet and male NPT threads provide additional strength
  • Mirror stem finish in the packing area enables smooth operation and extends packing life
  • One-piece handle prevents loss due to vibration or during maintenance
  • Soft or metal seat for bubble-tight shutoff is field-replaceable for easy maintenance
  • Extended valve life: damaged soft seat can be removed, leaving a metal seated valve

Applications

  • For isolation and venting of static pressure gauge or isntrument installations