HVA is the premier manufacturer and supplier of high and ultra high vacuum valves to the world's leading vacuum technology innovators. Our world class manufacturing facility in Nevada, USA supports our global sales and service network for the semiconductor, solar, scientific research, BioPharm, vacuum coating, and LED industries. We can offer you the perfect valve for your application at the best price. High Quality Precision Stainless Steel and Aluminum Vacuum Valves/Components, Gate Valves, Rectangular Valves MESC, Angle/Inline Valves, Custom Components, Low Particulate Valves, Large Rectangular Valves, Solar/FPD Valves, Harsh Process Valves, 3-Position Valves, Integrated Solutions and Valves with a Lockout/Tagout (LOTO) option.