Which sanitary design details should be checked on a commercial food pump?

Check the flow path for smoothness and freedom from crevices, then examine seal design, drainability, and dismantling access to confirm hygienic construction. Have the supplier run the pump with representative material and record process data, capturing both average results and abnormal samples, since a good average can hide unstable operation. Acceptance should tie each requirement to a measured result rather than a simple pass mark. When models look alike, compare measured application data instead of motor power or nominal speed.