Air Sentry Breather Adapters for Easy Installation
Flange adapters, used with breathers having a 1" slip-fit connection, are used for reservoirs where the tank wall is not thick enough to allow for tapping threads. With the Model A-101 adapter, mounting holes can be drilled in the high impact ABS molded flange to mate with any required hole pattern. The Model A-114 flange adapter has a standard ANSI 6-hole pattern pre-drilled for mounting.
Threaded adapters, suitable for use with Air Sentry breathers that have a 1" slip fit connection, are intended for reservoirs or gearboxes with a wall thickness sufficient for a tapped hole. Male and female NPT and male BSP thread versions are available.
The bayonet adapter replaces a standard breather cap on a hydraulic reservoir. Simply remove the breather cap, place the bayonet adapter on the breather flange, and rotate one-quarter turn. No tank modification is required. Bayonet adapters fit Air Sentry breathers with a 1" slip-fit connection.
Threaded spin-on adapters replace the standard spin-on particle filters made by many manufacturers. These adapters fit Air Sentry breathers with 1" slip-fit connections, are available in different sizes, and thread configurations. No tank modifications are required.
Threaded metal adapters fit the X-100 and any Z series breather. The breather connection is ½" male NPT while a variety of reservoir connection types are available.
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Adapter Specifications
Slip Fit – Threaded Adapters (male)
| Part # |
Material |
Connection to Breather |
Connection to Reservoir |
M1 (inches) |
N (inches) |
L (inches) |
Max. breather
flow rate
(cfm) |
| A-102 |
Schedule 40 PVC |
Slip Fit - 1 inch |
1 inch male NPT |
1 5/8 |
7/32 |
2 |
35 |
| A-103 |
Schedule 40 PVC |
Slip Fit - 1 inch |
¾ inch male NPT |
1 21/32 |
3/16 |
2 |
26 |
| A-409 |
Schedule 40 PVC |
Slip Fit - 1 inch |
½ inch male NPT |
1 9/16 |
5/8 |
2 7/16 |
10 |
| A-501 |
Schedule 40 PVC |
Slip Fit - 1 inch |
1 inch male BSP |
1 5/8 |
7/32 |
2 1/8 |
35 |
| Fits all breathers with slip fit connections |
Slip Fit – Threaded Adapters (female)
| Part # |
Material |
Connection to Breather |
Connection to Reservoir |
M (inches) |
M1 (inches) |
N (inches) |
L (inches) |
Max. breather
flow rate
(cfm) |
| A-410 |
Schedule 40 PVC |
Slip Fit - 1 inch |
½ inch female NPT |
1 11/16 |
1 3/16 |
5/32 |
2 |
10 |
| Fits all breathers with slip fit connections |
Slip Fit Bayonet Adapters
| Part # |
Material |
Connection to Breather |
Connection to Reservoir |
M1 (inches) |
L (inches) |
Max. breather
flow rate (cfm) |
| A-104 |
High Density EDPM, Gasket, Metal Dowel |
Slip Fit - 1 inch |
Bayonet push &
turn connection |
2 3/4 |
1 5/8 |
35 |
| Fits all breathers with slip fit connections |
Slip Fit Threaded Spin-On Adapters
| Part # |
Material |
Connection to Breather |
Connection to
Reservoir |
M1 (inches) |
L (inches) |
Max. breather
flow rate
(cfm) |
| A-105 |
High Density EDPM |
Slip Fit - 1 inch with
O-ring seal |
1 inch - 12 UNF, 3/4 inch
thread length |
2 |
1 5/8 |
35 |
| A-106 |
High Density EDPM |
Slip Fit - 1 inch with
O-ring seal |
1 1/2 inch - 16 UNF, 3/4 inch thread length |
1 21/32 |
2 |
35 |
| A-115 |
Delrin |
Slip Fit - 1 inch with
O-ring seal |
1 1/2 inch - 16 UNF, 3/4 inch thread length |
1 9/16 |
2 7/16 |
35 |
| Fits all breathers with slip fit connections |
Slip Fit Flange Adapters
| Part # |
Material |
Connection to Breather |
Connection to Reservoir |
Max. breather
flow rate
(cfm) |
| A-101 |
High Impact ABS |
Slip Fit - 1 inch |
Customer drilled holes |
35 |
| A-114 |
High Impact ABS |
Slip Fit - 1 inch |
Six 3/8 inch clearance holes spaced 60 degrees
apart on 2 7/8 inch diameter center |
35 |
| Fits all breathers with slip fit connections |
Threaded Metal Adapters
| Part # |
Material |
Connection to Breather (A) |
Connection to
Reservoir (B) |
L (inches) |
Hex Size (inches) |
Max. breather
flow rate
(cfm) |
| A-401 |
Carbon Steel |
1/2 inch male NPT |
1/4 inch male NPT |
1 5/8 |
7/8 |
5 |
| A-402 |
Carbon Steel |
1/2 inch male NPT |
1/4 inch female NPT |
1 1/2 |
7/8 |
5 |
| A-403 |
Carbon Steel |
1/2 inch male NPT |
3/8 inch male NPT |
1 5/8 |
7/8 |
7 |
| A-404 |
Carbon Steel |
1/2 inch male NPT |
3/8 inch female NPT |
1 11/16 |
7/8 |
7 |
| A-406 |
Carbon Steel |
1/2 inch male NPT |
3/4 inch male NPT |
1 7/8 |
1 1/16 |
10 |
| A-407 |
Carbon Steel |
1/2 inch male NPT |
3/4 inch female NPT |
1 15/16 |
1 3/8 |
10 |
| A-408 |
Carbon Steel |
1/2 inch male NPT |
1 inch male NPT |
2 3/32 |
1 1/16 |
10 |
| Fits all Z-Series breathers and X-100 |
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