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Tamper-Resistant Compressed Air Regulators



Prevent unauthorized or accidental pressure changes to these regulators—they let you lock down the set pressure. Use these regulators to adjust and maintain the pressure of your compressed air. All are relieving regulators, so they exhaust when the downstream pressure exceeds the set pressure. Install them in your air line after your filters.
Regulators with a key lock only let those with the key adjust the pressure. The lock is universal, so you can use the same key for multiple regulators.
Regulators with a removable T-handle can only be adjusted when the handle is in place. Remove the T-handle to prevent further adjustments.
Regulators with a knob-locking clip cannot be adjusted when the clip is installed between the knob and the body of the regulator. To adjust the pressure, remove the knob and clip, then reattach the knob.
Optional pressure gauges (sold separately) are for use with removable T-handle regulators.
Mounting brackets (sold separately) attach the regulator to a wall or equipment.
Regulators | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Pipe Size | Overall | Mounting Brackets | ||||||||||||||
| Inlet | Outlet | Max. Flow Rate | Max. Pressure, psi | Gauge Included | No. of Gauge Ports | Wd. | Ht. | Housing Material | Max. Temp., °F | Includes | Regulating Accuracy | Choose a Pressure Regulating Range, psi | Each | Each | ||
With Key Lock | ||||||||||||||||
NPT Female Inlet and Outlet | ||||||||||||||||
| 1/8 | 1/8 | 28 scfm @ 145 psi | 232 | Yes | __ | 3 1/8" | 4 13/16" | Aluminum | 120° | Mounting Bracket | ±5 psi | 00000000 | 0000000 | 000000 | 00 | |
| 1/4 | 1/4 | 72 scfm @ 145 psi | 232 | Yes | __ | 3 1/8" | 4 13/16" | Aluminum | 120° | Mounting Bracket | ±5 psi | 00000000 | 000000 | 000000 | 00 | |
| 3/8 | 3/8 | 228 scfm @ 145 psi | 232 | Yes | __ | 3 7/16" | 5 11/16" | Aluminum | 120° | Mounting Bracket | ±5 psi | 00000000 | 000000 | 000000 | 00 | |
| 1/2 | 1/2 | 245 scfm @ 145 psi | 232 | Yes | __ | 3 7/16" | 5 11/16" | Aluminum | 120° | Mounting Bracket | ±5 psi | 00000000 | 000000 | 000000 | 00 | |
| 3/4 | 3/4 | 353 scfm @ 145 psi | 290 | Yes | __ | 3 7/8" | 7 9/16" | Aluminum | 120° | Mounting Bracket | ±5 psi | 00000000 | 000000 | 000000 | 00 | |
| 1 | 1 | 406 scfm @ 145 psi | 290 | Yes | __ | 3 7/8" | 7 9/16" | Aluminum | 120° | Mounting Bracket | ±5 psi | 00000000 | 000000 | 000000 | 00 | |
With Removable T-Handle | ||||||||||||||||
NPT Female Inlet and Outlet | ||||||||||||||||
| 1/4 | 1/4 | 37 scfm @ 100 psi | 250 | No | 2 | 3" | 5 1/2" | Aluminum | 250° | __ | ±5% | 000000 | 00000 | 0000000 | 000000 | |
| 3/8 | 3/8 | 37 scfm @ 100 psi | 250 | No | 2 | 3" | 5 1/2" | Aluminum | 250° | __ | ±5% | 000000 | 00000 | 0000000 | 00000 | |
| 1/2 | 1/2 | 60 scfm @ 100 psi | 250 | No | 2 | 3 5/8" | 6 3/4" | Aluminum | 250° | __ | ±5% | 000000 | 00000 | 0000000 | 00000 | |
| 3/4 | 3/4 | 120 scfm @ 100 psi | 250 | No | 2 | 4 3/4" | 8 3/8" | Aluminum | 250° | __ | ±5% | 000000 | 000000 | 0000000 | 00000 | |
| 1 | 1 | 120 scfm @ 100 psi | 250 | No | 2 | 4 3/4" | 8 3/8" | Aluminum | 250° | __ | ±5% | 000000 | 000000 | 0000000 | 00000 | |
With Knob-Locking Clip | ||||||||||||||||
NPT Female Inlet and Outlet | ||||||||||||||||
| 1/8 | 1/8 | 45 scfm @ 100 psi | 250 | Yes | __ | 1 5/8" | 3 5/8" | Aluminum | 140° | __ | Not Rated | 0-140 | 0000000 | 00000 | 0000000 | 00000 |
| 1/4 | 1/4 | 59 scfm @ 100 psi | 250 | Yes | __ | 1 5/8" | 3 5/8" | Aluminum | 140° | __ | Not Rated | 0-140 | 0000000 | 00000 | 0000000 | 00000 |
| Replacement Pressure Gauge for Key Lock Regulators | 0000000 | Each | 000000 |
| Optional Gauge for Removable T-Handle Regulators with 0-50 psi Pressure Regulating Range | 0000000 | Each | 00000 |
| Optional Gauge for Removable T-Handle Regulators with 0-125 psi Pressure Regulating Range | 0000000 | Each | 00000 |
| Optional Gauge for Removable T-Handle Regulators with 0-200 psi Pressure Regulating Range | 0000000 | Each | 00000 |
Tamper-Resistant Precision Compressed Air Regulators

Prevent unintentional or unauthorized pressure changes in lines that demand constant, consistent air pressure. These regulators have a tamper-resistant cover that threads over the adjusting screw to block access. Use them to deliver steady air pressure in sensitive applications that rely on it for precise force and movement. All are relieving regulators, so they exhaust when the downstream pressure exceeds the set pressure. Install them in your air line after filters.
BSPP threads are also known as G threads.
Regulators | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Pipe Size | Overall | Mounting Brackets | ||||||||||||
| Inlet | Outlet | Max. Flow Rate | Max. Pressure, psi | Gauge Included | No. of Gauge Ports | Wd. | Ht. | Housing Material | Max. Temp., °F | Choose a Pressure Regulating Range, psi | Each | Each | ||
NPT Female Inlet and Outlet | ||||||||||||||
±0.1% Regulating Accuracy | ||||||||||||||
| 1/4 | 1/4 | 80 scfm @ 100 psi | 250 | No | 2 | 3" | 7" | Aluminum | 160° | 0000000 | 0000000 | 000000 | 00000 | |
| 3/8 | 3/8 | 80 scfm @ 100 psi | 250 | No | 2 | 3" | 7" | Aluminum | 160° | 0000000 | 000000 | 000000 | 0000 | |
| 1/2 | 1/2 | 80 scfm @ 100 psi | 250 | No | 2 | 3" | 7" | Aluminum | 160° | 0000000 | 000000 | 000000 | 0000 | |
BSPP Female Inlet and Outlet | ||||||||||||||
±0.1% Regulating Accuracy | ||||||||||||||
| 1/4 | 1/4 | 80 scfm @ 100 psi | 250 | No | 2 | 3" | 7" | Aluminum | 160° | 0000000 | 000000 | 000000 | 0000 | |

























