A-18
Appendix A Model 224 Differential Pressure Unit
Table A.4—Model 224 DPU Parts List
Item Description Part No. Qty
1 Bellows Unit Assembly, 3/4" or 5/8" 1
Bellows Unit Assembly, 1-5/8"
*2 O-Ring, Housing Gasket 2
Viton 9A-C0001-0039R
EPT 9A-C0001-1054R
3 Bracket, Mounting 9A-C0273-0001C 2
4 Washer, ET Lock, 1/4" SST 9A-C0003-0068K 4
5 Screw, Hex Hd. SST, 1/4-28 x 1/2" 9A-C0116-1011J 4
6 Housing, Pressure 2
Housing, SST, .5/1.5K SWP, 1/4 x 1/4 NPT 9A-C0224-1543C
Housing, SST, .5/1.5K SWP, 1/4 x 1/2 NPT 9A-C0224-1610C
Housing, SST, .5/1.5K SWP, 1/2 x 1/2 NPT 9A-C0224-1579C
Housing, SST, .5/1.5K SWP, Absolute 9A-C0224-1618C
Housing, SST, 3/6K SWP, 1/4 x 1/4 NPT 9A-C0224-1556C
Housing, SST, 3/6K SWP, 1/4 x 1/2 NPT 9A-C0224-1608C
Housing, SST, 3/6K SWP, 1/2 x 1/2 NPT 9A-C0224-1580C
Housing, CuNi, .5/1K SWP, 1/4 x 1/4 NPT 9A-C0224-1581C
Housing, CuNi, .5/1K SWP, 1/4 x 1/2 NPT 9A-C0224-1616C
Housing, CuNi, .5/1K SWP, 1/2 x 1/2 NPT 9A-C0224-1655C
Housing, CuNi, .5/1K SWP, Absolute 9A-C0224-1651C
7 Screw, Housing 4
Soc Head Screw, 1/4-28 x 2-1/2, SST (17-4)
(for .5/1.5K SST units)
9A-C0220-1017J
Soc Head Screw, 3/8-24 x 2-1/2, SST (17-4)
(for 3/6K SST units)
9A-C0220-1014J
Soc Head Screw, 1/4-28 x 2-1/2, Monel
(for .5/1K CuNi units)
9A-C0220-0045J
8 Plug, Pipe 2
Pipe Plug, SST, 1/4 NPT 9A-C0199-0214C
Pipe Plug, SST, 1/2 NPT 9A-C0199-0215C
Pipe Plug, Monel, 1/4 NPT 9A-C0199-0235C
Pipe Plug, Monel, 1/2 NPT 9A-C0199-0234C
9 Spring Pin 9A-C0003-0002T 4
* Indicates recommended spare parts.