North American 4031 Pilot Mixer

Sheet 4031-1

GAS

AIR

3⁄8

"

 

fpt

Gas Inlet

A

¾  

fpt

Air Inlet

R510-2150

Locknut

A

4-6590-1 Gas

Adjustment Screw

¾  

fpt

Mixture Outlet

Section 

A-A

1⁄8

fpt Pressure Tap

(R590-7810

 

1⁄8

"

 

square head

pipe plug, steel - 2 required)

PARTS LIST

Cop

yr

igh

t © 2020 - F

iv

es - All r

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ts r

eser

ved | Shee

t 4031-1 09/18

WARNING: 

Situations dangerous to personnel and property may exist with the operation and maintenance of any combustion equipment. The presence of fuels, oxidants, hot and cold combustion products, hot 

surfaces, electrical power in control and ignition circuits, etc., are inherent with any combustion application. Components in combustion systems may exceed 160°F (71°C) surface temperatures and present hot 
surface contact hazard. Fives North American Combustion, Inc. suggests the use of combustion systems that are in compliance with all Safety Codes, Standards, Regulations and Directives; and care in operation.

Maximum Operating Pressure:

 20 psig (1.4 bar)

Normal Operating Pressure:

 10-30"w.c. (25-75 mbar)

Minimum Design Temperature:

 -40°F (-40°C)

Maximum Design Temperature:

 375°F (190°C)

Body Materials:

 Cast Iron with Brass air orifi ce

Gas Adjustment Screw Material:

 416 Stainless Steel

Weight:

 1.7 lbs. (.8 kg)

SPECIFICATIONS

ENERG

Y | C

OMBUSITION

Fives North American Combustion, Inc. 

4455 East 71st Street - Cleveland, OH 44105 - USA

www.fi vesgroup.com

CONTACT

fna.sales@fi vesgroup.com
T +1 800 626 3477 - F +1 216 373 4237

Catalog Combustion 2021 - Page 0090

Fives Group
FIVES GROUP
FIVES GROUP-FIVES GROUP-0090-0094

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Fives Group Part Numbers on this Catalog Page
Line Part Number Manufacturer Request Quote
1 590-7810 Fives Group Request Quote
2 4-6590-1 Fives Group Request Quote
3 510-2150 Fives Group Request Quote