TM 5-4610-223-12 (14) Quick opening gate valve. Manufacturer .............................................................. Hammond Brass Works Material .............................................................. Bronze Type .............................................................. Quick action Size .............................................................. 2 in. (5.08 cm) Working pressure .............................................................. 150 lb (68.0 kg) Threads .............................................................. Inside pipe (15) Plug valves. Manufacturer .............................................................. Met-Pro, Inc. Type .............................................................. 3 way, 2 port, lubricated Degrees .............................................................. 90 Size    1 1/2 in. .............................................................. (3.81 cm) Working pressure .............................................................. 200 lb (90.7 kg) (16) Plug valves. Manufacturer .............................................................. Met-Pro, Inc. Type .............................................................. 3 way, 3 port, lubricated Degrees .............................................................. 90 Size .............................................................. 1 1/2 in. (3.81 cm) Working pressure .............................................................. 200 lb (90.7 kg) (17) Air release valve. Manufacturer .............................................................. Met-Pro, Inc. Model .............................................................. 2003 Part number .............................................................. 13206E7458 Valve model .............................................................. 5 sq.in. (32.26 sq cm) (18) Diatomite filter pressure gage. Manufacturer .............................................................. United States Gage Co. Type .............................................................. P6440 Mounting .............................................................. Flush Size connection .............................................................. 1/4 in. npt Dial .............................................................. 2 1/2 in. (6.35 cm) Specification number .............................................................. 46779 Range .............................................................. 0-100 psi (O - 7.03 kg/sq cm) (19) Aspirator manifold pressure gage. Manufacturer .............................................................. United States Gage Co. Type .............................................................. 500 Size connection .............................................................. 1/4 - 18 Dial .............................................................. 3 1/2 in. (8.89 cm) Range .............................................................. 0-30 psi (0 - 2.11 kg/sq cm) (20) Filter pumps. Manufacturer .............................................................. Carver Pump Co. Type .............................................................. 11/4ML Size .............................................................. 1 1/4 x 1 1/2-7 Capacity .............................................................. 25 gpm at 115 ft. head 1-21