Back-Pressure Inducers

These devices eliminate the need for expensive components to induce hydraulic back pressure, as well as the misapplication of other components, such as check valves, for the same purpose.

When installed in a heat-exchange bypass line, the inducer will limit the pressure of the fluid flowing into the heat exchanger. They can be used to maintain a required return line back-pressure. Many other uses are possible.

image of a back‐ pressure inducer


PI - 8 - 126 - 15
MODEL - FEMALE
NPT
- MALE
NPT
- VALVE
RATING


STYLE FEMALE
NPT
MALE
NPT
VALVE
RATING
PI 2(1/4)
4(1/2)
6(3/4)
8(1)
10(1-1/4)
12(1-1/2)
16(2)
8(1)

10(1-1/4)
12(1-1/2)
16(2)

24(3)
3
(3 PSI)
5
(5 PSI)
15
(15 PSI)

Standard size combinations are those shown side-bSIMPLEX side (6-10, 8-12, 10-16, 16-24). Any feasible size combinations may be ordered, but they're not stocked (4-12, 8-16, etc).

DIMENSIONS (approximate)
back-pressure inducer dimensions
Male
Thread
A B C
1 1-1/2 1 3/4
1-1/4 1-13/16 1-1/4 1-1/8
1-1/2 2 1-5/16 1-3/8
2 2-9/16 1-5/16 1-1/4
3 3-1/4 1-5/8 1-1/4


LINE SIZE (in.) 3/4 1 1-1/4 2
VELOCITY (fps
thru schd. 40 pipe)
10 20 10 20 10 20 10 20
FLOW RATE (gpm) 17 34 27 54 47 94 105 210
SPRING RATING
(cracking pressure, psi)
PRESSURE DROPS (psi)
3
5
15
14
16
45
39
41
70
7
9
17
16
18
30
5
6
14
23
25
40
6
8
26
23
25
60