Table of Contents
Advertisement
The chart below represents the pressure drop (Ft of Head) versus the water flow rate (GPM) for the P-K
STORM ST-1250 through ST-2000. This information is useful to help size an appropriate circulation
pump. Keep in mind this pressure drop represents the boiler only, additional consideration is needed
28
26
24
22
20
18
16
14
12
10
8
6
4
2
0
0
20
for any connecting piping, valves, strainers, couplings, flanges, etc.
™
P-K STORM
Flow
Boiler
Condition
Operation
Maximum Flow High Fire
Minimum Flow
High Fire
Minimum Flow
Ignition
Minimum Flow
Low Fire
Revised: October 2, 2019
Released: October 2, 2019
P-K STORM ST-1250 - ST-2000
Pressure Drop vs. Flow
40
60
ST-1250 through ST-2000 Boilers: Minimum & Maximum Flow Rates
ST-1250
121 GPM
38 GPM
(Flow
Switch
Setting)
Patterson-Kelley 2019
All Rights Reserved.
MAX FLOW ST-1500
@20°F ΔT
146GPM @ 23ft
MAX FLOW ST-1250
@20°F ΔT
121GPM @ 18.8ft
80
100
120
Flow Rate (GPM)
Flow Rate
ST-1500
ST-1750
146 GPM
170 GPM
46 GPM
54 GPM
(Flow
(Flow
Switch
Switch
Setting)
Setting)
P-K Storm
TM
Gas Fired Boiler
Technical Service 1.877.728.5351
MAX FLOW ST-2000
@20°F ΔT
194GPM @ 26 ft
MAX FLOW ST-1750
@20°F ΔT
170GPM @ 20 ft
140
160
180
Approximate
ST-2000
194 GPM
62 GPM
(Flow
Switch
Setting)
2691000099 P-K Storm Installation and Owners
200
ΔT
20 °F
60 °F
Manual.docx
Page 85
Advertisement
Table of Contents
