Filler Breather – Bayonet Style - Hydraulic Filters

These filler breathers have a bayonet fitting and are used in a wide variety of hydraulic tank reservoir systems. Filler breathers are essential when air exchange is needed and there is a risk of air-borne contaminants and particles. With a handy steel grip cap, our bayonet-style filler breathers come with a standard wording on dipstick “Full” & “Add”, but we can custom print wording as well. Contact us to discuss your requirements.

Benefits

Pressurized breathers (OBB-P style) provide clean air flow into reservoirs where there is an exchange of air during changes in tank fluid levels
Available with grip cap as a standard product
Pressurized breathers provide positive suction head at the pump inlet
Easy to install

Features

Steel cap with multiple cap finishes
Air intake valve opens at 0.435 PSI/3 KPԚ
Temperature range: -22°F to 240°F
Relief valve setting at 5 psi/.34 bar
Default wording on dipstick “Full” & “Add” – Custom wording upon request

Standard Options – All Styles

Multiple cap finishes (all styles) – zinc plated standard
3”, 6”, 8” stainless and 4” nylon basket
Oblong, round or no mounting holes
Multiple flange options with locking tabs
Multiple gaskets
Multiple link chain
Rivet bayonet

Cap Finish				Code
Black E-Coat				B
Chrome Plated				C
Zinc Plated				Z

Filter for OBB & OBB-P Only				Code
3 micron OBB Only				3
10 micron				10
40 micron				40

Basket				Code
None				None
3" Stainless Steel				3S
6" Stainless Steel				6S
8" Stainless Steel				8S
4" Nylon				4N

Flange				Code
Oblong Mounting Holes				FO
Round Mounting Holes				FR
No Mounting Holes				FN
Oblong Mounting Holes, Locking Tab				FL

Base Style for OBB & OBB-P Only				Code
Bayonet Black				B
Bayonet Zinc (Clear)				Z
Bayonet with Locking Tab (Zinc)				LTZ
Bayonet with Locking Tab (Black)				LTB

Base Style OBN Only
No Hole Bayonet (Zinc)				NH
No Hole Bayonet with Locking Tab (Zinc)				NHLT

Available Options				Code
14 Link Chain with Small Ring				C1
10" Chain with Small Ring				C2
Rivet Bayonet				RB
Neoprene Cork				NC
Dipstick (Contact Factory)				D

Standard on All Styles
6 Pack Screw Kit
Buna Gaskets

All dimensions are in inches and for reference only.

How to Order: OBB-P (Pressurized) series - Chrome plated, 40-micron, 6" basket, Round holes, zinc base = OBB-P-C-40-6S-FR-Z

Style	Cap Finish	Filter	Basket	Flange	Base Color	Option
OBB-P	C	40	6S	FR	Z

How to Order: OBB (Vented) series - Vented, Chrome plated, 40-micron, 6" basket, round holes, zinc base = OBB-C-40-6S-FR-Z

Style	Cap Finish	Filter	Basket	Flange	Base Color	Option
OBB	C	40	6S	FR	Z

How to Order: OBN (Non-Vented) series – Chrome plated, 6” basket, Round holes, No hole bayonet, zinc plated = OBN-C-6S-FR-NH

Style	Cap Finish	Basket	Flange	Base Color	Option
OBN	C	6S	FR	NH

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