System components Boiler house Steam injectors
2
5
1
No.
Part
Material
1 2 3 4 5
Control valve
Bronze/gunmetal
Controller and sensor
Brass
3
Sensor pocket
Stainless steel
2
Horizontal injector
Stainless steel
Vacuum breaker
Brass
4
2.2 10
Capacities System capacities in kg/h of injected steam when heating tanks vented to atmospheric pressure.
System type
INS15
INS20
INS25
INS40
INS50
INS65
INS80
Control valve Size
½" BSP ¾" BSP 1" BSP 1½" BSP 2" BSP 2½" BSP 3" BSP
Steam supply pressure
Capacities in kg/h of saturated steam
bar g
psi g
2 3 4 5
29
87
110
350
580
1 150
2 500
3 700
44 58 73 87
120
160
425
750
1 400
3 350
4 900
150
200
550
1 000
1 750
4 200
6 000
180
240
650
1 150
2 100
5 000
7 200
6
215
280
750
1 400
2 525
5 800
8 400
6.9
100 102 116 118
237
316
840
1 535
2 800
6 500
9 450
7 8
240
320
850
1 550
2 950
6 600
9 550
275
360
1 000
1 750
3 200
7 400
10 700
8.2
278
370
1 020
1 780
3 280
7 550
10 950
9
131
290
410
1 100
1 900
3 600
8 200
11 850
10
145 150 160
315
450
1 200
2 075
3 800
9 000
13 000
10.3
325
460
1 230
2 135
3 920
-
-
11
350
-
-
2 275
4 200
-
-
12 13
174
375
-
-
2 500
4 500
-
-
189
400
-
-
2 675
5 000
-
-
Where steam supply pressures are higher consider the use of a pressure reducing valve or alternatively, the use of a combined pressure reducing and temperature control valve. Please consult Spirax Sarco for a suitable type.
TI-P401-03 AB Issue 5
Page 2 of 3
INS Direct Steam Injection Heating Systems
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