Product Overview | Pressure Regulators
7142A and 7152A Regulators reduce oil or compressed air line pressures (up to 250 psig) to a reduced constant outlet pressure.
7152A REGULATOR (for heavy oil)
Standard spring range is 15-30 psig, 25-75 psig or 70-150 psig outlet, factory set for 70 psig.
7142A REGULATOR (for light oil and air)
Body: cast iron with stainless steel trim. Diaphragm: Viton. Seat: Teflon. Maximum temperature: 300°F.
7142A Regulators are frequently installed upstream of North American 7052 Air/Oil Ratiotrols, which require 25-30 psig inlet pressures.
Standard 7142A Regulator spring range is 15-30 psig, 25-75 psig or 70-150 psig outlet--it is factory set for 30 psig.
Regulators can be installed in any position. An arrow on the body indicates direction of flow.
Body: cast iron with brass trim. Diaphragm: neoprene. Seat: Nitrile. Maximum temperature: 180°F.
Outlet pressure is adjusted by loosening locknut and turning spring adjusting screw on top of regulator, then tightening locknut.
More trim options are available upon request to Fives North American Combustion, Inc.
CAPACITIES gph 0.85 sp gr oil at 48 SSU 7142A and 7152A Regulators
½ "
¾ "
1"
10% 20% pressure, psig droop droop droop droop droop droop outlet inlet gph gph gph gph gph gph 60 495 846 846 1392 1132 1952 75 553 943 943 1529 1366 2342 100 651 1106 1106 1757 1757 2993 20% 10% 20% 10%
viscosity/sp gr correction factors
Multiply gph in tables by factor†. oil viscosity grade SSU factor 4,5,6 100 0.9 4 300 0.85 6 2000 0.5 5 4000 0.4 6 5000 0.3
30 psig (15 to 30 psig spring)
150 200 250
716 782 879 442 520 585 651 715 813 651 735 813 976
1171
1204 1301 1334 865 911 1171 1366 1562 1594
1887 2017 2083 1483 1562 1887 2212 2538 2538 1952 2166 2375 2798 3026
1887 2018 2473
3123 3254 3742 1952 2017 2668 3123 3579 3969 2472 3013 3546 4620 4815
1237 1269
60 75
852
1106
911
1171
50 psig (25 to 75 psig spring)
100
1106
1626
150 200 250 100 125 150 200 250
1171
1757 1887 2343 1431 1789 2148 2863 3026
1236 1367
† When choosing factors for heavier oils, make sure oil
temperature required for desired SSU value dœs not exceed regulator temperature rating.
1171
1171
75 psig (70 to 150 psig spring)
1269 1366 1562 1627
1334 1497 1822 1953
1008
Bulletin 7142A/52A Page 2
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