Standard Units

BF Models. Available in all-steel or nylon-base construction. The nylon-base unit is more than strong-enough, and it costs less.

BFG MODELS. Available with a steel plated grip cap and steel base in 3/4". Both 10 and 40 micron available

NBF Models. These are of all-nylon construction, and have larger than usual threaded bases, up to 1-1/2 in. NPT. They can be used in ports large enough to serve also as filling openings. Nylon dipsticks are optional; just add "dipstick" to the model number. A weatherproof cap is another option; add "WP" at end of model number. For splash proof cap; add "SP" at end of model number.

PRESSURIZED TANK BREATHER Allows air flow to 30 cfm and available in either 10 or 40 micron with a 5 psi relief valve setting (3 psi and 10 psi available with special order). Available in 3/4" NPT with a steel base and a grip cap made of plated steel

Order By Part Number

Type Filter
(Micron)
NPT
(in.)
Model
Number
Nylon
Base
40 3/8
1/2
3/4
BF-2041
BF-2042
BF-2043
10 3/8
1/2
3/4
BF-2011
BF-2012
BF-2013
Steel
Base
40
40
40
40
10
10
10
1/4
3/4
3/4
3/4
3/4
3/4
3/4
BF-2140***
BF-2143
BFG-2143
BFGP-2143*
BF-2113*
BFG-2113*
BFGP-2113*
All
Nylon
10 1/4
3/8
1/2
3/4
1
1-1/4
1-1/2
NBF-2010***
NBF-2011
NBF-2012
NBF-2013
NBF-2014
NBF-2015
NBF-2016

*3 and 5 spi in stock. 10 psi is not in stock
**Add "WP" at the end of model no. for weatherproof top.
Add "SP" at end of model no. for splash proof top.

***Dip stick not available.

bf and nbf drawings
image of standard tank breathers