Define supply and return
The skid sends cleaning liquid through a named circuit and receives its return where recovery forms part of the arrangement. Valves set the route and separate product from cleaning streams. Each circuit needs an agreed sequence and a complete drain path.
Different machines have different duties
Thermal paths, buffer vessels and filling connections impose different access and flow needs. Select the circuit around the surfaces and deposits. Open conveyors, bath sections and reject areas require their own accessible cleaning arrangements.
Maintain the cleaning network
Inspect tank access, pump seals, valves and instrument connections. Confirm correct return and discharge routing after maintenance. Recipes and acceptance checks are specific to the product and installation, rather than a universal three-tank setting.