The BK-D17 glass enclosure is built to withstand standard operating pressures and temperatures common in liquid management applications

moving the flanges closer increases the pitch diameter and driven speed

The units are technically identical

ensuring precise thermal management during defrost cycles or high-demand heating scenarios

Field Controls 602602003 Pressure Switch R-407A The BK-D17 glass enclosure isOptimize your venting system with the Field Controls 602602003 Pressure Switch, a critical safety component designed specifically for the PVG 600 Power Venter. As a direct OEM replacement pressure switch for legacy part numbers 46246100 and 46283000, this unit ensures your heating appliance only fires when proper negative pressure and airflow are established. In the field, technicians rely on this switch to prevent unsafe combustion conditions by