② When flash steam is not involved
(For closed systems)
Determining the reservoir diameter and
length based on the amount of Condensate:
Amount of
Reservoir Diameter (mm) & Length (m)
Condensate
(kg/h)
40
50
300 or less
1.2m
0.7
400
1.5
1.0
500
2.0
1.2
0.5
600
1.5
0.6
800
2.0
0.8
1000
1.0
1500
1.5
2000
2.0
3000
4000
5000
6000
7000
8000
9000
10000
NOTE: Reservoir length can be reduced by 50% when the motive pressure (Pm) divided by the
back pressure (P
③ When there are small quantities of flash steam and a large amount of condensate
(E.g., open systems pumping large amounts of super-cooled condensate)
Consult the sizing tables in sections ① and ② above.
Select the condensate receiver size based on the larger of ① and ②.
Select the vent pipe diameter and overflow pipe diameter from ①.
Reservoir Table
(For equalized, closed system installations)
80
100
150
200
250
0.5
0.7
1.0
1.3
0.6
2.0
0.9
0.5
1.2
0.7
1.4
0.8
0.5
1.7
1.0
0.6
2.0
1.2
0.7
1.3
0.8
1.5
0.9
1.7
1.0
) is "2" or greater. (When Pm ÷ P
b
Pi
Condensate
Amount of
Reservoir Diameter (in) & Length (ft)
Condensate
(lb/h)
1
/
1 2
500 or less
3.0 ft
2.0
700
4.0
2.5
1000
5.5
3.5
1200
4.5
1500
2000
3000
4000
5000
6000
7000
8000
9000
10000
12000
14000
16000
18000
20000
≥ 2)
b
— 16 —
Reservoir
PowerTrap
2
3
4
6
1.0
1.5
2.0
1.0
2.5
1.5
3.5
2.0
4.5
3.0
6.5
4.0
1.5
5.0
2.5
5.5
2.5
1.5
6.5
3.0
1.5
3.5
2.0
4.0
2.5
4.5
2.5
5.0
3.0
6.0
3.5
6.5
4.0
4.5
1.5
8
10
1.5
1.5
2.0
2.5
2.5
3.0
1.5