Prevost
Prevost PrevoS1 Stainless Steel Safety Quick Male Coupler - 1/2" Industrial Profile
- Availability:
- Allow 1-2 Days to Ship
- Weight:
- 0.00 LBS
Description
Prevost PrevoS1 Stainless Steel Safety Quick Male Coupler - 1/2" Industrial Profile
Prevost PrevoS1 Stainless Steel Safety Quick Male Couplers provide a rugged, high-flow compressed-air connection for demanding industrial environments using the 1/2" Industrial / ISO 6150 B profile. These ISI 11 couplers feature an 11 mm internal passage, stainless-steel body, and multiple male NPT connection sizes for heavy-duty pneumatic systems.
The PrevoS1 safety system combines high airflow with controlled decompression and disconnection. One press of the release button first vents downstream pressure and then releases the plug, helping reduce hose-whip hazards during tool changes. The stainless-steel body is designed for harsh operating conditions where impact resistance, corrosion resistance, durability, and long service life are important.
Product Highlights
- Prevost PrevoS1 stainless-steel safety quick male coupler
- 1/2" Industrial / ISO 6150 B profile
- 11 mm internal passage
- 148 SCFM at 100 PSI with a 10 PSI pressure drop
- Male NPT system connection
- Available with 3/8", 1/2", or 3/4" male NPT
- Three stainless-steel ISI 11 configurations
- One-button decompression and disconnection
- Helps reduce hose whip during disconnection
- Stainless-steel body with 17% chromium
- Designed for demanding industrial environments
- Nitrile NBR O-ring seal
- Anti-static construction
- Suitable for high-air-demand pneumatic applications
Available Configurations
| ISI 111252 | 1/2" Industrial Profile x 3/8" Male NPT |
|---|---|
| ISI 111253 | 1/2" Industrial Profile x 1/2" Male NPT |
| ISI 111254 | 1/2" Industrial Profile x 3/4" Male NPT |
Technical Specifications
| Manufacturer | Prevost |
|---|---|
| Product Series | PrevoS1 |
| Coupler Family | ISI 11 |
| Product Type | Stainless Steel Safety Quick Male Coupler |
| Connection Profile | Industrial / ISO 6150 B |
| Nominal Profile Size | 1/2" |
| Internal Passage | 11 mm |
| Flow Rate | 148 SCFM at 100 PSI with 10 PSI Pressure Drop |
| Male NPT Options | 3/8", 1/2", and 3/4" |
| Body Material | Stainless Steel with 17% Chromium |
| Other Components | Steel or Aluminum with Corrosion-Resistant Treatment |
| Seal | Nitrile NBR O-Ring |
| Service Pressure Range | 29 to 232 PSI |
| Operating Temperature | 5°F to 158°F |
| Compatible Plug Family | IRP 11 Industrial Plugs |
| Disconnection System | Automatic Decompression Followed by Safe Disconnection |
Stainless-Steel Construction for Demanding Service
The ISI 11 version of the PrevoS1 coupling uses a stainless-steel body with 17% chromium. Prevost positions the metal-body coupling for demanding applications where the connection may be exposed to impacts, crushing, dirt, moisture, and other harsh operating conditions.
- Heavy-duty stainless-steel body
- Designed for intense impacts and demanding service
- Suitable for dirty or damp environments
- Corrosion-resistant construction
- Well suited for heavy industry and mobile equipment
- Higher maximum service pressure than the composite ISI 11EB version
1/2" Industrial High-Flow Connection
The ISI 11 coupling uses an 11 mm internal passage and Prevost's 1/2" Industrial / ISO 6150 B connection profile. Prevost publishes a flow rate of approximately 148 SCFM at 100 PSI with a 10 PSI pressure drop.
This high airflow makes the ISI 11 family well suited for pneumatic equipment that requires substantially more air than smaller Industrial quick-coupling systems.
One-Button Safety Disconnection
The PrevoS1 safety mechanism controls downstream pressure before the plug is released. One press of the button first decompresses the connected air line and then disconnects the plug.
This controlled sequence helps reduce sudden hose movement and hose whip during disconnection while providing quick and intuitive operation.
Male NPT Connection Options
3/8" Male NPT
ISI 111252 combines the 1/2" Industrial / 11 mm flow profile with a 3/8" male NPT connection.
1/2" Male NPT
ISI 111253 combines the 1/2" Industrial / 11 mm flow profile with a 1/2" male NPT connection.
3/4" Male NPT
ISI 111254 combines the 1/2" Industrial / 11 mm flow profile with a 3/4" male NPT connection.
Understanding Profile Size vs. Male Thread Size
The 1/2" Industrial profile and male NPT connection size are independent specifications.
All three variants use the same ISI 11 Industrial quick-connect profile and 11 mm internal passage. The male NPT connection on the rear of the coupling is what changes between variants.
- ISI 111252: 1/2" Industrial profile x 3/8" MNPT
- ISI 111253: 1/2" Industrial profile x 1/2" MNPT
- ISI 111254: 1/2" Industrial profile x 3/4" MNPT
- Male NPT size does not change which quick-connect plug profile is required.
Industrial / ISO 6150 B Compatibility
These couplers use Prevost's ISI 11 Industrial / ISO 6150 B profile and are designed for compatible IRP 11 plugs.
- Use with compatible IRP 11 Industrial-profile plugs.
- Male NPT connection size does not determine plug compatibility.
- The mating plug must match the ISI 11 Industrial profile.
- Verify existing system compatibility before ordering.
Why Choose the Stainless-Steel ISI 11?
High Airflow
The 11 mm internal passage delivers approximately 148 SCFM under Prevost's published test conditions, making this coupling suitable for high-demand pneumatic equipment.
Heavy-Duty Body
The stainless-steel construction is designed for harsh service where impacts, dirt, moisture, crushing forces, and demanding operating conditions may be encountered.
Higher Pressure Capability
The stainless-steel version is rated for service pressures up to 232 PSI, providing additional pressure capability compared with the composite-body ISI 11EB family.
Common Applications
Heavy Industry & Manufacturing
- Heavy manufacturing
- Iron and steel production
- Foundries
- Cement plants
- Industrial maintenance
- Production machinery
- High-air-demand pneumatic equipment
Harsh & Mobile Environments
- Heavy construction
- Public works
- Mining and quarry operations
- Agricultural equipment
- Industrial vehicles
- Shipbuilding
- Offshore and demanding outdoor applications
How to Select the Correct Variant
- Step 1: Confirm the system requires the 1/2" Industrial / ISI 11 quick-connect profile.
- Step 2: Confirm that the 148 SCFM flow capacity is appropriate for the pneumatic equipment.
- Step 3: Determine the female-threaded system connection that the coupler will screw into.
- Step 4: Select the matching male NPT size: 3/8", 1/2", or 3/4".
- Step 5: Confirm that the mating quick-connect plug is an IRP 11 Industrial-profile plug.
- Step 6: Verify pressure, temperature, and installation requirements before placing the coupler into service.
Complete Variant Reference
| ISI 111252 | 1/2" Industrial Profile x 3/8" Male NPT |
|---|---|
| ISI 111253 | 1/2" Industrial Profile x 1/2" Male NPT |
| ISI 111254 | 1/2" Industrial Profile x 3/4" Male NPT |
Installation & Safety Guidance
- Depressurize the compressed-air system before installation, removal, or service.
- Confirm that the selected male NPT connection matches the female-threaded system connection.
- Use thread-sealing materials and installation practices suitable for compressed-air NPT connections.
- Confirm that the mating plug uses the IRP 11 Industrial profile.
- Do not select the coupler based only on male NPT size.
- Do not exceed the 232 PSI maximum service pressure.
- Keep operating temperature within the specified 5°F to 158°F range.
- Inspect the coupler and plug periodically for wear, contamination, corrosion, damage, or leakage.
- Replace damaged or excessively worn components.
- Compressed-air components should be installed and serviced by qualified personnel.
Product Documents
Review the Prevost PrevoS1 Quick Coupling specification sheet for additional information about the stainless-steel ISI 11 body, Industrial profile, airflow, materials, operating limits, and compatible IRP 11 plugs.
Frequently Asked Questions
Are these the composite ISI 11EB couplers?
No. This listing is specifically for the stainless-steel ISI 11 male-thread couplers: ISI 111252, ISI 111253, and ISI 111254.
What material is the coupler body made from?
Prevost specifies a stainless-steel body containing 17% chromium for the ISI 11 metal-body coupling.
What quick-connect profile do these couplers use?
They use the 1/2" Industrial / ISO 6150 B profile with an 11 mm internal passage.
What is the flow rate?
Prevost publishes a flow rate of approximately 148 SCFM at 100 PSI with a 10 PSI pressure drop.
Which plug family fits these couplers?
Use compatible Prevost IRP 11 Industrial-profile plugs.
What male NPT sizes are available?
This listing includes 3/8", 1/2", and 3/4" male NPT connections.
Does the male NPT size change the quick-connect profile?
No. All three variants use the same ISI 11 / 1/2" Industrial quick-connect profile. Only the rear male NPT connection changes.
Can this coupling screw directly into a female NPT fitting?
Yes. Select the male NPT variant that matches the female NPT connection on the compressed-air piping, manifold, regulator, hose fitting, or equipment.
What is the service pressure range?
The stainless-steel PrevoS1 coupling is rated for service pressures from 29 to 232 PSI and is not suitable for vacuum service.
What is the operating temperature range?
Prevost specifies an operating temperature range of 5°F to 158°F.
How does the PrevoS1 safety release work?
One press first decompresses downstream pressure and then releases the plug, helping reduce hose-whip hazards during disconnection.
Why choose the stainless-steel version?
The stainless-steel ISI 11 is intended for demanding environments where impact resistance, corrosion resistance, durability, and increased service-pressure capability are important.
Important Ordering Notes
- This listing includes three stainless-steel Prevost PrevoS1 ISI 11 male couplers.
- ISI 111252: 1/2" Industrial profile x 3/8" male NPT.
- ISI 111253: 1/2" Industrial profile x 1/2" male NPT.
- ISI 111254: 1/2" Industrial profile x 3/4" male NPT.
- These are ISI 11 stainless-steel couplers, not ISI 11EB composite-body couplers.
- All three variants use the same 11 mm / 1/2" Industrial quick-connect profile.
- Use compatible IRP 11 Industrial plugs.
- Male NPT connection size and Industrial plug profile are separate specifications.
- Verify connection size, pressure requirements, and mating-plug compatibility before ordering.
