Anderson Greenwood (AGCO) M5, M51 Gauge Valves

The Anderson Greenwood M5 gauge valve delivers compact, lightweight performance, enabling precise gauge positioning without the need for extra piping penetrations. For severe service applications, the M51 gauge valve features a rugged metal-seated bonnet designed specifically for pressures up to 10,000 psig (690 barg).

Both models feature three 1/2″ FNPT outlet ports for multi-port instrumentation tie-ins, with male or female inlet options, threaded or welded configurations, and standard or extended inlet lengths. BriceBarclay actively stocks a wide variety of AGCO M5 and M51 gauge valves in 316 Stainless Steel (soft and metal seated) for fast fulfillment.

The M5 offers two primary bonnet configurations: an integral metal seat, or a roddable soft-seated design with a one-piece rotating stem and plug and an optional FKM O-ring with PTFE back-up ring for enhanced sealing. The high-pressure M51 carries a metal-seated bonnet with a reinforced stem and larger T-bar handle for 10,000 psig (690 barg) service.

For high-temperature environments, a specialized graphite bonnet option incorporates adjustable graphite and back-up pressure rings to ensure reliable, leak-free performance.