This valve body is rated for a maximum static pressure of 300 psi or 15 psi for steam applications

it stabilizes system performance and addresses low voltage start-up problems common in older air conditioning units

As an experienced tech knows

Standardized Compatibility: Fully compatible with Johnson Controls pneumatic mounting brackets

Amana-Goodman D6723320S Blower Wheel Els PW 17895 This valve body is ratedThe Amana Goodman D6723320S Blower Wheel is a precision engineered centrifugal fan component designed for high performance air delivery in 3. 5 to 4 ton residential HVAC systems. Featuring a 11 inch diameter and 9 inch width, this CW (clockwise) rotation wheel is built from heavy duty galvanized steel to resist corrosion and structural fatigue under high static pressure. The unit comes with a standard 1 2 inch bore hub, ensuring a direct fit interface