Anderson Greenwood (AGCO) M4A, M4T Three-Valve Differential Pressure Instrument Manifolds
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Anderson Greenwood (AGCO) M4A, M4T Three-Valve Differential Pressure Instrument Manifolds

In Stock Options

The TESCOM™ AGI / AGCO / Anderson Greenwood M4A and M4T three-valve manifolds have two main block valves and an equalizing valve for direct or remote mounting at pressures to 6,000 psig (414 barg). The AGCO M4A is designed for mounting on differential pressure transmitters with 2 1/8″ (54mm) center-to-center connections. The AGCO M4T is used in applications where direct coupling to orifice flanges is not desired.

Bonnet Assembly Options

The Anderson Greenwood M4A and M4T three-valve manifolds offer the option of metal or roddable soft seats. All stem threads are ENC plated, rolled and lubricated to prevent galling and reduce operating torque. The stem seal is a patented PTFE packing gland which is adjustable in service. All bonnets are assembled with a bonnet locking pin to prevent accidental removal while in service and a protective dust cap is fitted to contain stem lubricant and prevent the influx of contaminants.

Optional Soft-seated Bonnet Assemblies

The AGCO M4A and M4T three-valve manifold soft-seated bonnet assemblies have a one-piece rotating stem and plug. In addition to the adjustable PTFE packing gland, the bonnets are available with a FKM O-ring and PTFE back-up ring.

Metal-seated Bonnet Assemblies

The Anderson Greenwood M4A and M4T three-valve manifold metal-seated bonnet assemblies have a rotating stem with free swivel ball-type seat for long service life. The specially hardened ball seat is ideal for both gas and liquid service.

Features

  • Cost savings of 20-30% by eliminating several parts used in Ôpiping up'
  • ENC plated roddable soft seats simplify maintenance and ensure accuracy
  • Back seat stem design eliminates stem blowout or accidental removal while in operation
  • Fewer leak points reduce the chances of leakage
  • Soft seat design enables field replacement without valve removal
  • Rolled stem threads provide a stronger, more durable thread area, increasing valve life
  • Mirror stem finish in the packing area ensures smooth operation and extends packing life
  • Constant compression metal-to-metal bonnet-to-body seal below bonnet threads prevents corrosion, eliminates tensile breakage and creates a reliable seal point
  • Easily adjustable stem packing decreases downtime
  • PTFE-packed design bonnet cap protects against atmospheric contamination, reduces thread galling
  • AGCO Mount (OPT)

Applications

  • Chemical
  • Oil and Gas
  • Power
  • Marine