A valve assembly includes a valve body having a valve body central axis. A valve actuator is operably connected to the valve body and is located such that a central axis of the valve actuator is nonparallel to the valve body central axis. A strut extends from the valve body to the valve actuator to support the valve actuator in a fixed relationship to the valve body. A pneumatically-actuated butterfly valve includes a valve body having a valve body central axis and a valve disc. A pneumatic actuator is located such that its central axis is nonparallel to the valve body central axis. The actuator includes a piston disposed in a cylinder, the piston operably connected to the valve disc. A strut extends from the valve body to support the actuator in a fixed relationship to the valve body.