C. Performance
Appendix C—Performance for C-Model (Close-Coupled) Pumps
C10 (60 Hz only)
C12 (60 Hz only)
C13
C14
Service: Fill 20# cylinders in 30 seconds to 1 minute, 100# cylinders in 2-1/2 to 3-1/2 minutes, motor fueling
through a meter at 7 gpm (26.5 L/min)
1
Differential Pressure
gpm (L/min)
Capacity at 20 psid (1.4 bar d)
12 (45.4)
Capacity at 50 psid (3.4 bar d)
7 (26.5)
Capacity at 70 psid (5.2 bar d)
3 (11.4)
Service: Fill 20# cylinders in 15 to 30 seconds, 100# I.C.C. cylinders in 2 to 3 minutes, motor fueling through a
meter at 15 gpm (56.8 L/min)
1
Differential Pressure
gpm (L/min)
Capacity at 20 psid (1.4 bar d)
19 (71.9)
Capacity at 70 psid (4.8 bar d)
12.5 (47.3)
Capacity at 85 psid (5.9 bar d)
10 (37.9)
Service: Fill 20# cylinders in 10 to 20 seconds, 100# cylinders in 1-1/2 minutes, motor fueling through a meter at
23 gpm (87.1 L/min)
1
Differential Pressure
gpm (L/min)
Capacity at 20 psid (1.4 bar d)
28 (106.0)
Capacity at 75 psid (5.2 bar d)
16 (60.6)
Capacity at 100 psid (6.9 bar d)
11.5 (43.5)
Service: Fill 100# cylinders in less than one minute, motor fueling through a meter at 30 gpm (113.6 L/min)
1
Differential Pressure
gpm (L/min)
Capacity at 20 psid (1.4 bar d)
38 (143.8)
Capacity at 70 psid (4.8 bar d)
26 (98.4)
Capacity at 100 psid (6.9 bar d)
20 (75.7)
1
Times are estimates and will be affected by conditions at the site, cylinder and OPD design. PSID is pounds per square inch differential or
“differential pressure.”
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