Prevost
Prevost PrevoS1 Male Safety Coupler - Automotive Profile
- Availability:
- Allow 1-2 Business Days to Ship
- Weight:
- 0.00 LBS
Description
Prevost PrevoS1 Male Safety Coupler - Automotive Profile
Prevost PrevoS1 Male Safety Couplers provide professional compressed-air quick connections with a push-button safety-release design that combines decompression and disconnection. This listing combines the 1/4", 3/8", and 1/2" Automotive-profile male safety couplers into one product family.
Select the required Automotive quick-connect profile first, then choose the male NPT connection that matches the female threaded port on the pneumatic tool, hose fitting, manifold, regulator, machine, or other compressed-air equipment. The USI 06 family uses a 1/4" ID passage, the USI 08 family uses a 3/8" ID passage, and the larger USI 11 family uses a 1/2" ID passage.
Product Highlights
- Prevost PrevoS1 compressed-air safety coupler
- Male NPT threaded connection
- Available in 1/4", 3/8", and 1/2" Automotive profiles
- USI 06, USI 08, and USI 11 coupler families
- 1/4" ID passage on USI 06 models
- 3/8" ID passage on USI 08 models
- 1/2" ID passage on USI 11 models
- Male NPT connections from 1/4" through 3/4", depending on profile
- Push-button decompression and disconnection
- Helps reduce hose-whip risk during disconnection
- Optimized airflow for pneumatic equipment
- No conventional valve spring in the airflow path
- Anti-static design
- Silicone-free construction
- Anti-scratch protective exterior
- Lightweight and compact design
- Color-coded button helps identify the quick-connect profile
- Part number laser printed on the coupling
Available Male Coupler Configurations
| Part Number | Automotive Profile | Male Thread | ID Passage |
|---|---|---|---|
| USI 061251 | 1/4" | 1/4" Male NPT | 1/4" |
| USI 061252 | 1/4" | 3/8" Male NPT | 1/4" |
| USI 061253 | 1/4" | 1/2" Male NPT | 1/4" |
| USI 081251 | 3/8" | 1/4" Male NPT | 3/8" |
| USI 081252 | 3/8" | 3/8" Male NPT | 3/8" |
| USI 081253 | 3/8" | 1/2" Male NPT | 3/8" |
| USI 111252EB | 1/2" | 3/8" Male NPT | 1/2" |
| USI 111253EB | 1/2" | 1/2" Male NPT | 1/2" |
| USI 111254EB | 1/2" | 3/4" Male NPT | 1/2" |
Technical Specifications
| Manufacturer | Prevost |
|---|---|
| Product Family | PrevoS1 USI Safety Couplers |
| Product Type | Male NPT Compressed-Air Safety Coupler |
| Connection Profile | Automotive Profile |
| Available Profile Sizes | 1/4", 3/8" and 1/2" |
| Profile Code | D1 |
| USI 06 ID Passage | 1/4" |
| USI 08 ID Passage | 3/8" |
| USI 11 ID Passage | 1/2" |
| Thread Type | Male NPT |
| Male Thread Range | 1/4", 3/8", 1/2" and 3/4" Male NPT, Depending on Profile |
| Fluid | Compressed Air |
| Release System | Push-Button Decompression + Disconnection |
| Anti-Static | Yes |
| Silicone Free | Yes |
| Identification | Color-Coded Button and Laser-Printed Part Number |
1/4" Automotive Profile - USI 06
The USI 06 family uses the 1/4" Automotive quick-connect profile with a 1/4" ID passage.
- USI 061251: 1/4" Automotive Profile x 1/4" Male NPT
- USI 061252: 1/4" Automotive Profile x 3/8" Male NPT
- USI 061253: 1/4" Automotive Profile x 1/2" Male NPT
- 1/4" ID passage on all USI 06 variants
3/8" Automotive Profile - USI 08
The USI 08 family uses the larger 3/8" Automotive quick-connect profile with a 3/8" ID passage.
- USI 081251: 3/8" Automotive Profile x 1/4" Male NPT
- USI 081252: 3/8" Automotive Profile x 3/8" Male NPT
- USI 081253: 3/8" Automotive Profile x 1/2" Male NPT
- 3/8" ID passage on all USI 08 variants
1/2" Automotive Profile - USI 11
The larger USI 11 family uses the 1/2" Automotive quick-connect profile with a 1/2" ID passage. Three male NPT connection sizes are available.
- USI 111252EB: 1/2" Automotive Profile x 3/8" Male NPT
- USI 111253EB: 1/2" Automotive Profile x 1/2" Male NPT
- USI 111254EB: 1/2" Automotive Profile x 3/4" Male NPT
- 1/2" ID passage on all USI 11 variants
Choose the Correct Automotive Profile
1/4" Automotive - USI 06
Select the USI 06 family when the mating compressed-air plug uses the 1/4" Automotive profile.
- 1/4" Automotive profile
- 1/4" ID passage
- 1/4", 3/8", or 1/2" male NPT
3/8" Automotive - USI 08
Select the USI 08 family when the mating compressed-air plug uses the 3/8" Automotive profile.
- 3/8" Automotive profile
- 3/8" ID passage
- 1/4", 3/8", or 1/2" male NPT
1/2" Automotive - USI 11
Select the USI 11 family when the mating compressed-air plug uses the larger 1/2" Automotive profile.
- 1/2" Automotive profile
- 1/2" ID passage
- 3/8", 1/2", or 3/4" male NPT
Profile & Passage Comparison
| Coupler Family | Automotive Profile | ID Passage | Male NPT Options |
|---|---|---|---|
| USI 06 | 1/4" | 1/4" | 1/4", 3/8", 1/2" |
| USI 08 | 3/8" | 3/8" | 1/4", 3/8", 1/2" |
| USI 11 | 1/2" | 1/2" | 3/8", 1/2", 3/4" |
PrevoS1 One-Button Safety Release
Prevost PrevoS1 technology uses a push-button system designed to provide decompression followed by disconnection. Relieving compressed air before complete separation helps reduce sudden hose movement during disconnect.
- Simple push-button operation
- Decompression before complete disconnection
- Helps reduce hose-whip risk
- Designed to help protect operators, tools, and nearby equipment
- Suitable for frequently connected pneumatic equipment
Optimized Compressed-Air Flow
Reduced Turbulence
The PrevoS1 internal design avoids a conventional valve spring in the airflow path, helping reduce turbulence as compressed air moves through the coupling.
Profile-Sized Air Passages
The USI 06, USI 08, and USI 11 families provide progressively larger 1/4", 3/8", and 1/2" ID passages for compatible compressed-air systems.
Why Automotive Profile Size Matters
The Automotive quick-connect profile determines which mating plug fits the coupler. It is separate from the male NPT equipment connection.
- USI 06 uses a 1/4" Automotive profile.
- USI 08 uses a 3/8" Automotive profile.
- USI 11 uses a 1/2" Automotive profile.
- A male NPT thread size does not determine the quick-connect profile.
- The same NPT size may be offered across multiple profile families.
- Always verify both specifications before ordering.
Understanding Male NPT Size
The male NPT connection installs into a compatible female threaded port on a pneumatic component.
- 1/4" Male NPT is available in the USI 06 and USI 08 families.
- 3/8" Male NPT is available in the USI 06, USI 08, and USI 11 families.
- 1/2" Male NPT is available in the USI 06, USI 08, and USI 11 families.
- 3/4" Male NPT is available on USI 111254EB in the 1/2" Automotive family.
Anti-Static & Silicone-Free
Anti-Static Design
PrevoS1 couplers are designed to help prevent static-electricity buildup in compatible compressed-air systems.
Silicone-Free Construction
Prevost specifies PrevoS1 couplers as silicone free, helping reduce contamination in compressed-air systems used for painting, varnishing, and finishing.
Anti-Scratch, Light & Compact
Protective Body
The anti-scratch exterior helps reduce damage if the coupling contacts finished or delicate surfaces.
Compact Professional Design
The compact body helps minimize unnecessary bulk at pneumatic tools, manifolds, hoses, machines, and other compressed-air connection points.
Easy Profile Identification
Color-Coded Button
Prevost uses button color coding to help operators quickly identify the quick-connect profile and reduce connection errors.
Laser-Printed Part Number
The exact part number is laser printed directly onto the coupling for easier identification during replacement, maintenance, and inventory work.
Common Applications
Automotive & Service
- Automotive repair shops
- Body shops
- Service bays
- Paint-gun air systems
- Impact tools
- Air ratchets
- Grinders and sanders
- Inflation equipment
- Blow guns
Industrial & Manufacturing
- Assembly lines
- Pneumatic machinery
- Production equipment
- Plant maintenance
- Higher-flow compressed-air systems
- Air manifolds
- Filters and regulators
- Hose assemblies
- General compressed-air distribution
How to Select the Correct Male Coupler
- Step 1: Identify whether the mating plug uses the 1/4", 3/8", or 1/2" Automotive profile.
- Step 2: Select USI 06 for 1/4" Automotive, USI 08 for 3/8" Automotive, or USI 11 for 1/2" Automotive.
- Step 3: Identify the female NPT port size on the pneumatic tool, hose fitting, manifold, regulator, machine, or other equipment.
- Step 4: Select the corresponding male NPT connection.
- Step 5: Confirm the ID passage and compressed-air flow requirements.
- Step 6: Verify pressure, temperature, hose, tool, and complete-system requirements before installation.
Complete Variant Reference
| USI 061251 | 1/4" Automotive Profile x 1/4" Male NPT - 1/4" ID Passage |
|---|---|
| USI 061252 | 1/4" Automotive Profile x 3/8" Male NPT - 1/4" ID Passage |
| USI 061253 | 1/4" Automotive Profile x 1/2" Male NPT - 1/4" ID Passage |
| USI 081251 | 3/8" Automotive Profile x 1/4" Male NPT - 3/8" ID Passage |
| USI 081252 | 3/8" Automotive Profile x 3/8" Male NPT - 3/8" ID Passage |
| USI 081253 | 3/8" Automotive Profile x 1/2" Male NPT - 3/8" ID Passage |
| USI 111252EB | 1/2" Automotive Profile x 3/8" Male NPT - 1/2" ID Passage |
| USI 111253EB | 1/2" Automotive Profile x 1/2" Male NPT - 1/2" ID Passage |
| USI 111254EB | 1/2" Automotive Profile x 3/4" Male NPT - 1/2" ID Passage |
Installation & Safety Guidance
- Depressurize compressed-air equipment before installing, removing, or replacing the coupler.
- Confirm the Automotive quick-connect profile before connecting a mating plug.
- Confirm male NPT thread size before installation.
- Use thread-sealing material suitable for compressed-air NPT connections.
- Follow appropriate tightening practices and avoid overtightening threaded fittings.
- Never force an incompatible plug into the coupler.
- Inspect couplers periodically for wear, damage, contamination, or deformation.
- Replace damaged or excessively worn components.
- Do not exceed the operating limits of the coupler, hose, pneumatic tool, or connected equipment.
- Compressed-air equipment should be installed and serviced by qualified personnel.
Product Documents
Review the Prevost PrevoS1 Safety Couplers specification sheet for additional information about the PrevoS1 safety-release system, optimized airflow, anti-static construction, silicone-free design, anti-scratch protection, and product-identification features.
Frequently Asked Questions
Which SKUs are included in this listing?
This listing contains USI 061251, USI 061252, USI 061253, USI 081251, USI 081252, USI 081253, USI 111252EB, USI 111253EB, and USI 111254EB.
What Automotive profile sizes are available?
This male coupler family is available in 1/4", 3/8", and 1/2" Automotive profiles.
What is the difference between USI 06, USI 08, and USI 11?
USI 06 uses a 1/4" Automotive profile and 1/4" ID passage. USI 08 uses a 3/8" Automotive profile and 3/8" ID passage. USI 11 uses a 1/2" Automotive profile and 1/2" ID passage.
Which 1/4" Automotive male couplers are available?
USI 061251 has 1/4" male NPT, USI 061252 has 3/8" male NPT, and USI 061253 has 1/2" male NPT.
Which 3/8" Automotive male couplers are available?
USI 081251 has 1/4" male NPT, USI 081252 has 3/8" male NPT, and USI 081253 has 1/2" male NPT.
Which 1/2" Automotive male couplers are available?
USI 111252EB has 3/8" male NPT, USI 111253EB has 1/2" male NPT, and USI 111254EB has 3/4" male NPT.
What is the ID passage of the USI 11 models?
USI 111252EB, USI 111253EB, and USI 111254EB all have a 1/2" ID passage.
Does male NPT size determine quick-connect profile?
No. Male NPT size determines the threaded equipment connection, while the Automotive profile determines which mating quick-connect plug fits the coupler.
What does the PrevoS1 push button do?
The push-button system provides decompression and disconnection, helping reduce hose-whip risk during disconnect.
Are PrevoS1 couplers anti-static?
Yes. Prevost identifies anti-static performance as a PrevoS1 design feature.
Are PrevoS1 couplers silicone free?
Yes. Prevost specifies PrevoS1 couplers as silicone free.
How are the exact couplers identified?
Prevost uses a color-coded button to help identify the connection profile and laser prints the part number directly onto each coupling.
Important Ordering Notes
- This listing combines the 1/4", 3/8", and 1/2" Automotive-profile Prevost PrevoS1 male safety couplers.
- USI 061251: 1/4" Automotive x 1/4" Male NPT.
- USI 061252: 1/4" Automotive x 3/8" Male NPT.
- USI 061253: 1/4" Automotive x 1/2" Male NPT.
- USI 081251: 3/8" Automotive x 1/4" Male NPT.
- USI 081252: 3/8" Automotive x 3/8" Male NPT.
- USI 081253: 3/8" Automotive x 1/2" Male NPT.
- USI 111252EB: 1/2" Automotive x 3/8" Male NPT.
- USI 111253EB: 1/2" Automotive x 1/2" Male NPT.
- USI 111254EB: 1/2" Automotive x 3/4" Male NPT.
- USI 06 models have a 1/4" ID passage.
- USI 08 models have a 3/8" ID passage.
- USI 11 models have a 1/2" ID passage.
- Automotive profile and male NPT thread size are separate specifications.
- Verify both before ordering.
