Vacuum ValvesVented Ball Valves with Locking Handles Model No.: BVV-1F Part No. Pipe Thread AHex in. (mm) Bin. (mm) Cin. (mm) Ein. (mm) Hin. (mm) Lin. (mm) DFlow in. (mm) BVV-1F 1″ NPT 1.63 (41.3) 3.37 (85.6) 1.99 (50.8) 4.35 (110.5) 3.10 (78.7) 6.04 (153.4) 0.875 (22.2)