Mark D., Tyler G.

The Apollo crew installed a new 12" gate valve on IP12 port at end-X, along with chevron baffle and an adapter cap until a rebuilt ion pump returns from vendor (after pump down and perhaps after some commissioning). The baffle and cap were torqued on the valve at floor level and then the crane was used to carry the valve and torque the beam tube side flange. 

Prior, I assembled the baffle louvers with Gerardo in the VPW lab and then "top gunned" it at EX. All 12 bolts are torqued. Baffle nipple/housing is SN006. Chevron baffle assembly is SN004. We will leak check next.