Vacuum ValvesVented Ball Valves with Locking Handles Model No.: BVV-34F Part No. Pipe Thread AHex in. (mm) Bin. (mm) Cin. (mm) Ein. (mm) Hin. (mm) Lin. (mm) DFlow in. (mm) BVV-34F 3/4″ NPT 1.38 (34.9) 2.98 (75.9) 1.69 (42.9) 4.35 (110.5) 2.85 (72.4) 5.84 (148.3) 0.685 (17.4)