Anderson Greenwood (AGCO) H7, H71 Hand Valve

The Anderson Greenwood (AGCO) H7 and H71 instrumentation hand valves are needle-style isolation valves built for severe-service process, instrument, and pneumatic systems. The H7 provides bubble-tight shutoff at pressures up to 6,000 psig (414 barg) with a metal-seated rotating-stem bonnet, while the H71 hard-seated variant carries the same body and stem technology to 10,000 psig (689 barg) for higher-pressure isolation and throttling on instrument root, drain, vent, and test connections in oil and gas, refining, petrochemical, and power generation service.

Both models use a free-swivelling stainless steel ball stem to prevent seating-surface damage, rolled and lubricated stem threads to reduce operating torque, and a patented bonnet lock that prevents accidental loosening and allows panel mounting without additional parts. The H71’s reinforced stem and bonnet assembly comes with a larger T-bar handle for higher-pressure control, and a high-temperature graphite-packed configuration is available with back-up pressure rings for dependable stem sealing in elevated-temperature service. BriceBarclay is an authorized Anderson Greenwood / AGCO distributor and stocks H7 and H71 hand valves in carbon steel and 316 stainless construction with multiple end-connection options; request a quote or browse our catalog below for available configurations.