CPC F15B 13/0814 (2013.01) [F15B 13/024 (2013.01); F15B 13/0842 (2013.01); F15B 13/0871 (2013.01); F15B 2211/50554 (2013.01); F15B 2211/55 (2013.01); Y10T 137/6007 (2015.04)] | 6 Claims |
1. A vacuum material handler including a hydraulically powered equipment connectable to a hydraulic supply of a host piece of equipment, the vacuum material handler comprising:
a manifold block located on the vacuum material handler between the hydraulic supply and the hydraulically powered equipment of the vacuum material handler, the manifold block including a manifold block body comprising:
a first side defining a first port and a second port in communication with an AB switch connected to the hydraulic supply of the host piece of equipment and a second side defining a first interface port and a second interface port in communication with the hydraulically powered equipment of the vacuum material handler;
a first passageway connecting the first port and the first interface port and a second passageway connecting the second port and the second interface port;
a first pressure control and a second pressure control located toward the first side of the manifold block for controlling a pressure of fluid, the first pressure control arranged along the first passageway for controlling a pressure of fluid passing out of said first port, the second pressure control arranged along the second passageway for controlling a pressure of fluid passing out of said second port;
a first flow controller and a second flow controller located toward the first side of the manifold block, the first flow controller arranged along the first passageway for controlling a rate of fluid passing out of said first port, said second flow controller arranged along the second passageway for controlling a rate of fluid passing out of the second port;
a first pressure relief pathway and a second pressure relief pathway located toward the second side of the manifold block, each pressure relief pathway having one end in communication with said first passageway and another end in communication with said second passageway;
a first pressure relief valve in said first pressure relief pathway for relieving pressure in said first passageway ahead of said first interface port when pressure in the first passageway is above a predetermined threshold, said first pressure relief pathway defining an unobstructed path from said first passageway to said first pressure relief valve;
a second pressure relief valve in said second pressure relief pathway for relieving pressure in said second passageway ahead of said second interface port when pressure in the second passageway is above a predetermined threshold, said second pressure relief pathway defining an unobstructed path from said second passageway to said second pressure relief valve.
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