Manual

32
Boiler Control Replacement Parts
McDonnell & Miller
B
OILER
C
ONTROLS
1
2
3
12
5
10
6
11
7
8
9
4
Series 25-A
Make-Up Water Feeders
Water Feeders – Make-Up
Replacement Head Mechanisms
For Repl. Head Part Weight
Series Model No. Number Description lbs. (kg)
25-A 25A-HD 127100 Head mechanism 20 (9.1)
Components
Item Part Model Weight
Number Number Number Description lbs. (kg)
1 304100 F-26 Gasket 0.1 (.05)
2 334100 421-30 Float 1.5 (0.7)
(includes item 2)
3 340400 SA27T-75 Diaphragm seal assembly 0.1 (.05)
(includes item 1)
4 339800 SA25-5 Arm assembly 0.1 (.05)
5 311100 21-27 Gasket 0.1 (.05)
6 312900 37-28 Gasket 0.1 (.05)
7 342300 SA51-9R Strainer assembly 3.0 (1.4)
(includes item 6)
8 324435 37-101 Tetraseal O-ring 0.1 (.05)
9 339700 SA21-38R Strainer basket 1.0 (0.5)
(includes item 8)
10 339900 SA25A-6 Valve assembly 3.0 (1.4)
11 340000 SA25A-15 Stem, disc & seat assembly 0.3 (.14)
` (includes item 6)
12 311900 27T-9 Float Rod 0.1 (.05)
Series 25-A
Model 25-A-HD
MM-701A_FINAL.qxd 7/15/08 12:34 PM Page 32