Xylem MM 320C Series 851, 851 2 and 847 Make-up Water Feeders - Manual (Page 2)

2
Capacities
DIFFERENTIAL PRESSURE IN POUNDS PER SQ. IN.
(Water pressure less boiler pressure)
4,000
lbs./hr.
BOILER
Btu/Hr.
(K-Calories/Hr.)
4,000,000
(15,800)
3,000,000
(11,900)
2,000,000
(7,900)
1,000,000
(4,000)
116
(1137)
87
(853)
58
(569)
29
(284)
16,000
12,000
8,000
4,000
0 0 0
BOILER
hp
(Kilowatts)
STEAM
Sq. Ft.
3,000
2,000
1,000
0
psi
(1814)
(kg/hr.)
(1361)
(907)
(454)
(0)
0 10 20 30 40 50 60 70 80 90 100
(kg/cm 2 ) (0) (.7) (1.4) (2.1) (2.8) (3.5) (4.2) (4.9) (5.6) (6.3) (7.0)
Capac
ity at Sw
itch Cut-
Off
Ma
xim
um
Cap
acit
y
Cap
acity
at Swi
tch Cut
-Off
Ma
xim
um
Capac
ity
FEEDER DISCHARGE
DIFFERENTIAL PRESSURE IN POUNDS PER SQ. IN.
(Water pressure less boiler pressure)
10,000
lbs./hr.
9,000
8,000
7,000
6,000
5,000
4,000
3,000
2,000
1,000
0
0 psi 10 20 30 40 50 60 70 80 90 100
(0) (kg/cm 2 ) (.7) (1.4) (2.1) (2.8) (3.5) (4.2) (4.9) (5.6) (6.3) (7.0)
(4536)
(kg/hr.)
STEAM
Sq.Ft.
BOILER
hp
(Kilowatts)
40,000
36,000
32,000
28,000
24,000
20,000
16,000
12,000
8,000
4,000
0
290
(2843)
261
(2559)
232
(2274)
203
(1990)
174
(1706)
145
(1421)
116
(1137)
87
(853)
58
(569)
29
(284)
0
(4082)
(3629)
(3175)
(2722)
(2268)
(1814)
(1361)
(907)
(454)
(0)
FEEDER DISCHARGE
DIFFERENTIAL PRESSURE IN POUNDS PER SQ. IN.
(Water pressure less boiler pressure)
10,000
lbs./hr.
9,000
8,000
7,000
6,000
5,000
4,000
3,000
2,000
1,000
0
0 psi 10 20 30 40 50 60 70 80 90 100
(0) (kg/cm 2 ) (.7) (1.4) (2.1) (2.8) (3.5) (4.2) (4.9) (5.6) (6.3) (7.0)
(4536)
(kg/hr.)
STEAM
Sq.Ft.
BOILER
hp
(Kilowatts)
40,000
36,000
32,000
28,000
24,000
20,000
16,000
12,000
8,000
4,000
0
290
(2843)
261
(2559)
232
(2274)
203
(1990)
174
(1706)
145
(1421)
116
(1137)
87
(853)
58
(569)
29
(284)
0
(4082)
(3629)
(3175)
(2722)
(2268)
(1814)
(1361)
(907)
(454)
(0)
M
ax
im
um
C
ap
ac
ity
Cap
acity
at Sw
itch C
ut-Of
f
Max. Water Supply Max. Valve
Series Pressure, psi Pressure, psi
851 150 35
851-S 100 35
847 150 25
Operation
Series 851
Series 847
Series 851-S