546-00437B | LAB EL ACT, AN/FP, ACT ONLY | Siemens Hex Size_4.2 in 10 CPVC WAFER BFYVLV EPDM

10 CPVC WAFER BFYVLV EPDM L/GEAR OPERATOR

3/4 PVC Y-CHECK VALVE SOCKET EPDM

18X6 PVC REDUCING WYE SOCKET LOW HEAD PIP N

8X6 PVC REDUCING TEE SOCKET DUCT

546-00437B | LAB EL ACT, AN/FP, ACT ONLY | Siemens Hex Size_4.2 in 10 CPVC WAFER BFYVLV EPDMLAB EL ACT, AN FP, ACT ONLY The Fume Hood Controller is an integral part of the APOGEE Automation System. The controller is a proven, patented stand alone Direct Digital Control (DDC) system for Variable Air Volume (VAV) control of laboratory fume hoods. The controller maintains constant face velocity as the fume hood sash is raised and lowered. An Operator Display Panel provides the fume hood user with the face velocity readout, operating status of