Prevost
Prevost PrevoS1 Safety Quick Hose Stem Coupler - 1/2" ID - High Flow Profile
- Availability:
- Usually Ships in 5-7 Business Days
- Weight:
- 0.00 LBS
Description
Prevost PrevoS1 Safety Quick Hose Stem Coupler - 1/2" ID - High Flow Profile
Prevost PrevoS1 ESI 11 Safety Quick Hose Stem Couplers provide a high-capacity compressed-air connection with a 1/2" ID passage and integrated hose stem. This listing includes hose-stem configurations for 3/8", 1/2", 5/8", and 3/4" ID air hose.
The PrevoS1 safety coupling system decompresses downstream compressed air before releasing the mating plug. This controlled disconnection sequence helps reduce sudden hose movement and hose-whip hazards during pneumatic tool and equipment changes.
Product Highlights
- Prevost PrevoS1 safety quick hose stem coupler
- ESI 11 coupling family
- 10.4 mm coupling profile
- 1/2" ID passage on every configuration
- Integrated hose stem / hose barb connection
- Available for 3/8", 1/2", 5/8", and 3/4" hose ID
- Four configurations on one listing
- Direct connection to compatible compressed-air hose
- Controlled decompression before plug release
- Helps reduce hose whip during disconnection
- Push-button PrevoS1 safety operation
- Designed for professional pneumatic systems
Available Configurations
| ESI 111810 | 1/2" ID Passage x 3/8" Hose Stem |
|---|---|
| ESI 111813 | 1/2" ID Passage x 1/2" Hose Stem |
| ESI 111816 | 1/2" ID Passage x 5/8" Hose Stem |
| ESI 111819 | 1/2" ID Passage x 3/4" Hose Stem |
Technical Specifications
| Manufacturer | Prevost |
|---|---|
| Product Series | PrevoS1 |
| Product Type | Safety Quick Hose Stem Coupler |
| Coupling Family | ESI 11 |
| Coupling Profile | 10.4 mm |
| ID Passage | 1/2" |
| Connection Style | Integrated Hose Stem / Hose Barb |
| Available Hose IDs | 3/8", 1/2", 5/8", and 3/4" |
| Fluid | Compressed Air |
| Disconnection System | Controlled Decompression Followed by Plug Release |
1/2" ID Passage
All four couplers in this listing use a 1/2" internal ID passage. The internal coupling passage remains the same while the hose-stem diameter changes to accommodate different compressed-air hose sizes.
- ESI 111810: 1/2" ID passage x 3/8" hose ID
- ESI 111813: 1/2" ID passage x 1/2" hose ID
- ESI 111816: 1/2" ID passage x 5/8" hose ID
- ESI 111819: 1/2" ID passage x 3/4" hose ID
Available Hose Stem Sizes
3/8" Hose ID
ESI 111810 combines the ESI 11 1/2" ID passage with a hose stem for 3/8" ID compressed-air hose.
1/2" Hose ID
ESI 111813 combines the ESI 11 1/2" ID passage with a hose stem for 1/2" ID compressed-air hose.
5/8" Hose ID
ESI 111816 combines the ESI 11 1/2" ID passage with a hose stem for 5/8" ID compressed-air hose.
3/4" Hose ID
ESI 111819 combines the ESI 11 1/2" ID passage with a hose stem for 3/4" ID compressed-air hose.
Understanding ID Passage vs. Hose ID
The 1/2" ID passage and the hose ID are separate specifications.
The ID passage describes the internal airflow path through the quick coupling. The hose ID determines which flexible air hose fits the integrated hose stem.
- All four couplers use the same 1/2" ID passage.
- Hose ID options range from 3/8" through 3/4".
- A 3/4" hose stem does not mean the coupler has a 3/4" internal passage.
- Hose size does not determine mating-plug compatibility.
- Verify both hose ID and ESI 11 coupling compatibility before ordering.
Direct Hose Stem Connection
The integrated hose stem allows the coupler to connect directly to compatible flexible compressed-air hose without requiring a separate threaded hose adaptor.
- Choose the stem according to the actual inside diameter of the hose.
- Push the hose fully onto the stem during assembly.
- Use a retention method appropriate for the hose construction and working pressure.
- Verify that the hose is rated for compressed-air service.
- Inspect the hose-to-stem connection periodically for loosening, leakage, or damage.
PrevoS1 Safety Disconnection
The PrevoS1 safety mechanism provides a controlled compressed-air disconnection sequence. Instead of immediately releasing a pressurized mating plug, the coupling first decompresses the downstream air line.
Once downstream pressure is relieved, the mating plug can be released. This helps reduce sudden hose movement and hose-whip hazards associated with disconnecting pneumatic equipment under pressure.
- Controlled downstream decompression
- Plug release follows decompression
- Helps reduce hose-whip hazards
- Simple push-button operation
- Designed for repeated professional use
High-Capacity ESI 11 Profile
These couplers use the larger ESI 11 / 10.4 mm coupling profile and a 1/2" internal passage for compressed-air applications requiring a larger flow path.
The hose-stem diameter does not determine the quick-connect profile. Confirm that the mating plug is compatible with the ESI 11 / 10.4 mm coupling family regardless of the hose size selected.
Benefits of an Integrated Hose Stem
Fewer Components
An integrated stem can eliminate the separate threaded hose adaptor otherwise required between the coupler and flexible hose.
Compact Assembly
The direct hose connection helps keep pneumatic hose assemblies compact and minimizes unnecessary connection points.
Multiple Hose Sizes
Four hose-stem sizes allow the ESI 11 coupling family to be incorporated into a range of larger compressed-air hose assemblies.
Safety & Operator Benefits
Controlled Release
The PrevoS1 mechanism relieves downstream compressed-air pressure before releasing the mating plug.
Reduced Hose Whip
Decompression before separation helps reduce sudden movement of the connected hose or pneumatic tool.
High-Flow Connection
The larger ESI 11 coupling family provides a 1/2" internal passage for demanding compressed-air applications.
Common Applications
Industrial & Manufacturing
- Manufacturing facilities
- Production machinery
- Assembly lines
- Machine shops
- Plant maintenance
- Large pneumatic equipment
- High-demand compressed-air systems
Shop & Service
- Automotive service facilities
- Heavy equipment shops
- Maintenance departments
- Large pneumatic tools
- Flexible air-hose assemblies
- Portable compressed-air lines
- Workstation air connections
How to Select the Correct Coupler
- Step 1: Confirm that the mating plug uses the ESI 11 / 10.4 mm coupling profile.
- Step 2: Confirm that the 1/2" ID passage is appropriate for the application.
- Step 3: Determine the actual inside diameter of the compressed-air hose.
- Step 4: Choose the corresponding 3/8", 1/2", 5/8", or 3/4" hose-stem configuration.
- Step 5: Use a suitable hose-retention method during assembly.
- Step 6: Verify the complete hose assembly's pressure and temperature requirements before use.
Complete Variant Reference
| ESI 111810 | 1/2" ID Passage x 3/8" Hose Stem |
|---|---|
| ESI 111813 | 1/2" ID Passage x 1/2" Hose Stem |
| ESI 111816 | 1/2" ID Passage x 5/8" Hose Stem |
| ESI 111819 | 1/2" ID Passage x 3/4" Hose Stem |
Installation & Safety Guidance
- Depressurize the compressed-air system before installation, removal, or service.
- Match the hose stem to the actual inside diameter of the hose.
- Push the hose completely onto the stem before installing the retention device.
- Use a hose clamp or retention method suitable for the hose construction and working pressure.
- Do not select a coupler based only on hose size.
- Verify ESI 11 mating-plug compatibility before pressurizing the system.
- Inspect the hose, stem, coupler, plug, and retention device periodically for wear, contamination, damage, or leakage.
- Replace damaged or excessively worn components.
- Do not exceed the rating of the lowest-rated component in the compressed-air system.
- Installation and service should be performed by qualified personnel.
Product Documents
Review the Prevost PrevoS1 Safety Couplers specification sheet for additional information about PrevoS1 safety coupling operation, controlled decompression, coupling profiles, hose connections, and compressed-air applications.
Frequently Asked Questions
Which part numbers are included in this listing?
This listing includes ESI 111810, ESI 111813, ESI 111816, and ESI 111819.
What ID passage do these couplers use?
All four couplers have a 1/2" ID passage.
What hose sizes are available?
Available hose-stem sizes are 3/8", 1/2", 5/8", and 3/4" hose ID.
Which model is for 3/8" ID hose?
ESI 111810 has a hose stem for 3/8" ID hose and a 1/2" internal coupler passage.
Which model is for 1/2" ID hose?
ESI 111813 has a hose stem for 1/2" ID hose and a 1/2" internal coupler passage.
Which model is for 5/8" ID hose?
ESI 111816 has a hose stem for 5/8" ID hose and a 1/2" internal coupler passage.
Which model is for 3/4" ID hose?
ESI 111819 has a hose stem for 3/4" ID hose and a 1/2" internal coupler passage.
Does the hose size change the coupler ID passage?
No. All four variants use the same 1/2" ID passage.
What coupling profile does this family use?
These couplers belong to the ESI 11 family with a 10.4 mm coupling profile.
How does the PrevoS1 safety release work?
The coupling decompresses downstream compressed air before releasing the mating plug, helping reduce sudden hose movement during disconnection.
Does the hose screw onto the stem?
No. Compatible flexible hose fits over the integrated hose stem and should be secured using an appropriate hose-retention method.
Can I select the coupler based only on hose size?
No. Verify both the required hose ID and ESI 11 quick-connect compatibility before ordering.
Important Ordering Notes
- This listing includes four Prevost PrevoS1 ESI 11 safety quick hose stem couplers.
- ESI 111810: 1/2" ID passage x 3/8" hose stem.
- ESI 111813: 1/2" ID passage x 1/2" hose stem.
- ESI 111816: 1/2" ID passage x 5/8" hose stem.
- ESI 111819: 1/2" ID passage x 3/4" hose stem.
- All variants use the ESI 11 / 10.4 mm coupling profile.
- All variants use a 1/2" ID passage.
- Hose size and quick-coupling compatibility are separate specifications.
- Verify mating-plug compatibility before ordering.
