Max-Air Technology has worked to solve many different types of speed and fluid media requirements for a wide array of valve applications throughout the world. The HCFD series High Capacity Flow Devices have been designed to provide a solution to increasing the volumetric media flow (mainly air or water) into our MT and UT series pneumatic actuators by providing a mechanism to supplement delivery through bypassing the inflow and outflow of media supply to the actuator in question. The HCFD blocks have been designed to work with double acting and spring return applications.