Prevost
Prevost PrevoS1 1/4" NPT Swivel Safety Quick Female Coupler - High Flow Profile
- SKU:
- ESI 071201SW
- Availability:
- Usually Ships in 5-7 Business Days
- Weight:
- 0.38 LBS
Description
Prevost PrevoS1 1/4" NPT Swivel Safety Quick Female Coupler - High Flow Profile
Prevost PrevoS1 ESI 071201SW Swivel Safety Quick Female Coupler combines the controlled safety disconnection of the PrevoS1 coupling system with a swiveling 90-degree body configuration. It features a 3/8" ID passage and a 1/4" female NPT connection for compressed-air applications where hose or fitting orientation benefits from a swivel-style connection.
The PrevoS1 safety release is designed to decompress downstream compressed air before the mating plug is fully released. This controlled sequence helps reduce sudden hose movement and hose-whip hazards during tool changes and other pneumatic disconnections.
Product Highlights
- Prevost PrevoS1 swivel safety quick female coupler
- Part number ESI 071201SW
- 3/8" ID passage
- 1/4" female NPT connection
- 90-degree swivel body configuration
- PrevoS1 safety disconnection system
- Controlled decompression before plug release
- Helps reduce hose whip during disconnection
- Compact connection for pneumatic equipment and hose assemblies
- Designed for professional compressed-air systems
Product Configuration
| Part Number | ESI 071201SW |
|---|---|
| Product Type | Swivel Safety Quick Female Coupler |
| ID Passage | 3/8" |
| Female Thread | 1/4" NPT (FNPT) |
| Body Configuration | 90-Degree Swivel |
| Manufacturer | Prevost |
| Product Series | PrevoS1 |
| Coupling Family | ESI 7.2-7.4 |
| Fluid | Compressed Air |
| Disconnection System | Controlled Decompression Followed by Plug Release |
Swivel Connection Design
The swivel-style body allows the coupler connection to change orientation relative to the threaded inlet. This can help improve hose routing and reduce the tendency of a connected hose to remain locked into a fixed direction.
- 90-degree body arrangement
- Useful where straight couplers create awkward hose routing
- Helps accommodate changes in hose direction
- Suitable for compact work areas and pneumatic workstations
- Can help reduce unnecessary twisting at the hose connection
3/8" ID Passage
The ESI 071201SW uses a 3/8" ID passage. This specification describes the internal airflow passage through the coupling and is separate from the 1/4" NPT system-side thread size.
The 3/8" passage should not be confused with the threaded connection. This coupler installs using a 1/4" female NPT thread while retaining the ESI 07 coupling family's 3/8" internal passage.
1/4" Female NPT Connection
The coupler has a 1/4" female NPT connection for installation onto a compatible male NPT fitting or compressed-air component.
- 1/4" female NPT inlet
- Installs onto compatible 1/4" male NPT components
- Suitable for pneumatic hose assemblies and equipment connections
- Verify male thread size before installation
- Use thread-sealing practices appropriate for compressed-air NPT connections
Understanding Thread Size vs. ID Passage
The 1/4" female NPT connection and 3/8" ID passage describe two different features of the coupler.
- 1/4" FNPT: system-side threaded connection
- 3/8" ID passage: internal coupling airflow passage
- The thread size does not determine the coupling profile.
- The ID passage does not determine the threaded installation size.
- Verify mating-plug compatibility separately from thread compatibility.
PrevoS1 Safety Disconnection
The PrevoS1 safety coupling system is designed to provide a controlled compressed-air disconnection sequence. Instead of immediately releasing a pressurized mating plug, the coupler first relieves downstream pressure.
Once downstream compressed air has been decompressed, the mating plug can be released. This helps reduce sudden hose movement during disconnect procedures.
- Controlled decompression before plug release
- Helps reduce hose-whip hazards
- Simple push-button operation
- Designed for frequent connection and disconnection
- Integrated safety function
Why Use a Swivel Coupler?
Improved Hose Routing
The angled swivel configuration can help direct the connected hose away from equipment, work surfaces, or the operator.
Reduced Twisting
A swivel connection can help reduce unnecessary torsional stress caused by forcing a flexible hose into a fixed direction.
Compact Installation
The 90-degree layout can be useful where a straight coupling would extend too far from the equipment or fitting.
Common Applications
Shop & Service Applications
- Automotive repair facilities
- Body shops
- Equipment service departments
- Pneumatic tool connections
- Workstation air lines
- Flexible hose assemblies
- Maintenance departments
Industrial & Manufacturing
- Manufacturing facilities
- Assembly stations
- Machine shops
- Production equipment
- Plant maintenance
- Pneumatic machinery
- Compressed-air distribution systems
Installation Considerations
- Confirm the system connection is 1/4" male NPT.
- Verify ESI mating-plug compatibility before installation.
- Depressurize the compressed-air system before installing or removing the coupler.
- Use sealing materials suitable for compressed-air NPT threads.
- Avoid overtightening the threaded connection.
- Allow sufficient clearance for the swivel body to operate as intended.
- Route connected hose so it does not interfere with surrounding equipment.
Safety & Operator Benefits
Controlled Release
The coupling decompresses downstream air before the mating plug is released.
Reduced Hose Whip
Relieving trapped downstream pressure before separation helps reduce sudden hose movement.
Flexible Orientation
The swivel body can improve hose positioning where a fixed straight coupling would be restrictive.
How to Confirm Compatibility
- Step 1: Confirm that the required quick-connect family is Prevost ESI 7.2-7.4.
- Step 2: Confirm that a 3/8" ID passage is suitable for the application.
- Step 3: Verify that the system connection is 1/4" male NPT.
- Step 4: Confirm that the swivel configuration provides suitable installation clearance.
- Step 5: Verify mating-plug compatibility before pressurizing the system.
Product Documents
Review the Prevost PrevoS1 Safety Couplers specification sheet for additional information about PrevoS1 safety coupling operation, controlled decompression, coupling profiles, and compressed-air applications.
Frequently Asked Questions
What is the part number for this coupler?
The part number is ESI 071201SW.
What thread connection does ESI 071201SW use?
It uses a 1/4" female NPT connection.
What is the ID passage?
The coupler has a 3/8" ID passage.
Is the 3/8" ID passage the same as the NPT connection size?
No. The 3/8" ID passage describes the internal coupling passage, while the threaded connection is 1/4" female NPT.
What does the SW configuration provide?
The SW configuration uses a swivel-style angled body that can help improve hose routing and connection orientation.
How does the PrevoS1 safety release work?
The PrevoS1 system decompresses downstream compressed air before releasing the mating plug, helping reduce sudden hose movement during disconnection.
Can this coupler install onto a 1/4" male NPT fitting?
Yes. The system-side connection is 1/4" female NPT and is intended for a compatible male NPT connection.
Can the swivel help prevent hose twisting?
The swivel configuration can help reduce unnecessary hose twisting and improve routing, although the complete hose installation should still be arranged to avoid excessive strain.
Can I select a mating plug based only on the 1/4" thread size?
No. The threaded system connection and quick-connect plug profile are separate specifications. Verify ESI compatibility before ordering the mating plug.
Important Ordering Notes
- Part number: ESI 071201SW.
- 3/8" ID passage.
- 1/4" female NPT connection.
- Swivel-style 90-degree coupler configuration.
- PrevoS1 safety disconnection system.
- Thread size and quick-coupling compatibility are separate specifications.
- Verify the required ESI mating plug before ordering.
- Confirm sufficient clearance for the swivel body in the intended installation.
