Patent ID: 9140469
Filing Date: 2015-09-22
Classification: F16K,F25B,Y10T

Abstract:
1. A service valve assembly for a refrigeration system that includes a condenser unit and an evaporation unit, comprising: a housing having a passageway, a condenser side port in communication with the passageway for connection to the condenser unit, an evaporation side port in communication with the passageway for connection to the evaporation unit, and a service port in communication with the passageway; a valve unit disposed within the passageway of the housing, the valve unit including a shut-off ball valve and a control valve, the shut-off ball valve controls flow through the housing and is rotatable into a first position that permits flow communication between the condenser side port and the service port through the shut-off ball valve, a second position that prevents flow communication between the condenser side port and the evaporation side port and the service port but permits flow communication between the evaporation side port and the service port through the shut-off ball valve, and a third position that permits flow communication between the condenser side port and the evaporation side port through the shut-off ball valve, and the control valve controls flow through the service port and has a first position preventing flow past the control valve and thereby preventing flow through the service port, and a second position that permits flow past the control valve and thereby permits flow through the service port.