Forged-Body Ball Valves
Trunnion-mounted ball valves rated ANSI 1500 through 4500. Forged carbon, low-alloy, and specialty materials. API 6D and 6A certified.
Forged-body high-pressure ball, gate, and check valves — engineered for wellhead, pipeline, autoclave, and the extreme pressures that snap standard cast bodies.
AVCO Valves specializes in forged-body high-pressure valves — ball, gate, and check designs rated through ASME Class 4500 for the most extreme pressure services. Wellhead manifolds, pipeline isolation at ANSI 1500+, autoclave discharge, hydraulic fracturing flow control — the kind of pressures that crack cast iron and pop standard cast steel.
What sets AVCO apart is the integrated forging-to-finish manufacturing approach. Bodies forged from solid bar stock, machined to precise tolerances, hardened trims, and tested to API 6A and ISO 10423 standards for upstream production service. Available in carbon steel, F22, F91, Inconel, and duplex alloys.
Miller Valve has partnered with AVCO to serve customers in oil & gas upstream production, mining autoclave operations, aerospace high-pressure gas, and steel mill BOF service. Engineered orders, NACE compliance, and full documentation for the most demanding applications.
Four product families covering forged-body ball, gate, check, and wellhead service — built for extreme pressure.
Trunnion-mounted ball valves rated ANSI 1500 through 4500. Forged carbon, low-alloy, and specialty materials. API 6D and 6A certified.
Bolted-bonnet and pressure-seal gate valves for high-pressure pipeline and refinery service. Specialty alloy bodies for sour service.
Swing, piston, and dual-disc check valves rated for high-pressure service. Forged construction with hardened trims for long life.
Specialty wellhead valves, choke valves, and surface production equipment. API 6A for upstream service.
When the application is high-pressure, sour-service, or autoclave duty, you need a partner who understands forged-body construction and code compliance.
Wellhead and pipeline service compliance — the codes your upstream and midstream specs require.
No porosity, no inclusions, no surprises. Forged bodies for the highest-pressure service.
Sour service material selection and compliance documentation for H₂S applications.
Engineered-to-order valves for autoclave, wellhead, and specialty high-pressure projects.
Tell us about your service — pressure, temperature, media, codes, materials. We'll spec the right valve.
Get in TouchIn loving memory of our founders and friends, Wayne and Lawton Miller
