Document O1bKxEdoQnGbKav9bwyQYKLKj

Springfield, Mass. July 24, 1961 Unloading VCM Tank Cars n. T 04 Nichols R, W. Bueker Unloading time for VCM cars has been estimated as out lined below: Hook up Pumping liquid Pumping vapor Disconnect 3 Regular Size (10-11,000 gals.) 1 hr, 3l~ - 4 hrs. l|r - 2 hrs. i. ,, A- hr, 3 King-Size (20,000 gals,) 1 hr, 7-8 hrs. 3-4 hrs. t - | hr. Total Time f - 7'h hrs * Hi - 13|' hrs. The above time estimates are based on summer temperatures. During winter months time for pumping vapors can be cut in half and sometimes more, depending on pressure needed to unload car. The liquid pumping time may be faster for king-size cars because they will be equipped with 3" excess flow valves instead of 2I!. We have no experience on which to base a faster unloading time through the larger valves. : sw 1 h TP 4^ < 4.--ef. A. Tierney /