CAPACITIES

gph

0.85 sp gr oil at 48 SSU

7142A and 7152A Regulators

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 

 

 

 

10% 20% 10% 20% 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

  

150  716 

1171 

1204  1887  1887  3123

  

200  782 

1237  1301  2017  2018  3254

  

250  879  1269  1334  2083  2473  3742

  

  60  442 

852 

    

865  1483 

  

1106 1952

  

  75  520 

911 

   

911 1562 1171 2017

  

100  585 

1106 

1171 

1887  1626  2668

  

150  651 

1171  1366  2212  1757  3123

  

200  715 

1236  1562  2538  1887  3579

  

250  813 

1367  1594  2538  2343  3969

  

100  651 

1171 

1171 

1952  1431  2472

  

125  735  1269  1334  2166  1789  3013

  

150  813  1366  1497  2375  2148  3546

  

200  976  1562  1822  2798  2863  4620

  

250  1008  1627  1953  3026  3026  4815

 

½  

" 

¾  

" 1"

Bulletin 7142A/52A

Page 2

30 psig

(15 to 30 

psig

spring)

50 psig

(25 to 75 

psig

spring)

75 psig

(70 to 150 

psig

spring)

  †  When choosing factors for 
    heavier oils, make sure oil 
    temperature required for
     desired SSU value dœ s not
     exceed regulator temperature
     rating.

7142A and 7152A Regulators reduce oil or compressed air line 
pressures (up to 250 psig) to a reduced constant outlet pressure.

7142A REGULATOR (for light oil and air)

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. 

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.

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. 

Body: cast iron with stainless steel trim.

Diaphragm: Viton.

Seat: Tefl on.

Maximum temperature: 300°F.

Product Overview | Pressure Regulators