13
Top-Transfer 2" Angle Valves A-720, A-721, A-721-B and A-724 Series
5.1.6
PACKING SCREW.
The thread is 1¼"-12 on the valve. It must be clean and sharp without nicks, scratches,
pits, and other defects that would strip or gall the thread when screwed into the body.
5.1.7
BOTTOM SPACER WITH WIPER:
The outer surfaces of the spacer surfaces must be free of nicks, scratches, and pits.
The internal wiper is clean without nicks and other defects. This part is custom made for use on Midland valves only
and must be purchased from Midland.
5.1.8
The remainder of the parts are O-rings, packing, gaskets, bolts, several types of nuts, lock washers, pins, etc.
These are inexpensive parts and to ensure that the right sizes, hardness, strengths, materials, and correctly
dimensioned parts are used, these replacement parts should be obtained from the factory.
Figure 5.1.6 Packing Screw
Figure 5.1.7 Bottom Spacer with Wiper
