background image

For vented crankcase use the
cane vent. For sealed
systems, vent must be
piped back to crankcase, 
above oil level.

Shutoff 
Valve

CLEAN Oil Supply Tank.
Height above LR recommended
2 ft. (0.6 m) minimum and
25 ft. (7.7 m) maximum

Wire to 
switch
circuits

LR857

Oil Outlet 

Electrical
Conduit

Crankcase

Oil
Inlet

NOTE:

 LR857 shown mounted

using a pipe bracket.

LR857 Typical 
Installation

4.50 in.

(114 mm)

5.20 in.

(132 mm)

2.50 in.

(64 mm)

Hole .88 in.
(22 mm) dia.

1/4-20 NC

2 places

.376 in.
(10 mm)
minimum
bottom surface
2 places

1.75 in.

(44 mm)

7.50 in.

(191 mm)

Slot, .390 in. (10 mm)
x 4.71 in. (120 mm)
3 places

6.69 in.

(170 mm)

Slot, .390 in. (10 mm)
x 2 in. (51 mm)
4 places

4.50 in.

(114 mm)

5.19 in.

(132 mm)

4-13/16 in.

(122 mm)

4-15/16 in.

(125 mm)

4-1/2 in.
(114 mm) 
Mounting Holes

Plug
1/2 NPT

1/4 NPT

2-25/32 in.

(71 mm)

9/32 in. (7 mm)
Diameter Holes
2 places

5/

8

 in. (16 mm)

I.D. Inlet Hose
Connection
1/4 NPT Internal 
Threads

Test

Knob

Plug
3/

8

 NPT

1/2 NPT
Electrical
Conduit
Connection

3/

8

 NPT

Outlet
Connection

How to Order

Specify model

LR857

Accessories (

Specify part number)

Description

Part Number

Fittings Kit

15000420    

Pipe Bracket Kit

15000238    

Universal Flange Kit

15010224    

Replacement Parts (

Specify part number)

Inlet Valve Assembly

15000159

Glass and Switch Ass'y

15000100

Lid Assembly

15000161

Float Assembly (Brass-std) 15000941

LR857 Shipping Dimensions:

9 x 5-1/2 x 6 in. (229 x 140 x 152 mm). 

LR857 Shipping Weight:

3 lbs. 6 oz. (1.5 kg).

Mounting Brackets with Hardware

Murphy offers two mounting brackets for the LR857. The 15000238 Pipe
Bracket Kit fits a 7/8 in. (22 mm) diameter pipe (see typical installation
below). The 15010224 universal Flange Kit allows various mounting methods. 

Dimensions

15000238

Pipe Bracket Kit

15010224

Universal Flange Kit

Additional Hardware Supplied

(2) 

1/4-20 x 7/8 inch 

(22 mm) screws

(2) 

1/4-20 x 1 inch 

(25 mm) screws

(4) 

1/4-20 hex nuts

(4) 

1/4 inch (6 mm) 

dia. split washer

Additional Hardware Supplied

(2) 

1/4-20 x 1-1/4 inch 

(32 mm) bolts

(4) 

1/4 dia. flat washer

(2) 

1/4-20 hex nuts

(2) 

5/16-18 x 1-1/4 inch 

(32 mm) bolts

(4) 

5/16 dia. flat washer

(2) 

5/16-18 hex nuts

LR-7225B page 2 of 2

CONTROL SYSTEMS & SERVICES DIVISION

P.O. Box 1819; Rosenberg, Texas 77471; USA
+1 281 633 4500  fax +1 281 633 4588 

e-mail

[email protected]

MURPHY DE MEXICO, S.A. DE C.V.

Blvd. Antonio Rocha Cordero 300, Fracción del Aguaje 
San Luis Potosí, S.L.P.; México 78384 
+52 444 8206264  fax +52 444 8206336
Villahermosa 52 993 3162117

e-mail

[email protected]

www.murphymex.com.mx

FRANK W. MURPHY, LTD.

Church Rd.; Laverstock, Salisbury SP1 1QZ; U.K.
+44 1722 410055  fax +44 1722 410088  

e-mail

[email protected]

www.fwmurphy.co.uk

In order to consistently bring you the highest quality, full featured products, we reserve the right to change our specifications and designs at any time.

FW Murphy

P.O. Box 470248
Tulsa, Oklahoma 74147 USA 
+1 918 317 4100  

fax

+1 918 317 4266  

e-mail 

[email protected]

www.

fwmurphy

.com

Printed in U.S.A.  850740B

Reviews: