prevoS1 Safety Coupling

One-push safe connection and disconnection. The pressure release mechanism eliminates accidental disconnection risks - a next-generation coupler system.

Prevost prevoS1 safety coupling full series - European, Industrial, Automotive quick couplers

Safety Coupler Combining Technical Performance and Economy

prevoS1 is the safety coupling system developed by Prevost. It enables one-push connection and disconnection, equipped with a safety mechanism that prevents accidental disconnection during work. Combining technical performance with economic benefits, it is adopted in industrial sites worldwide.

Supporting multiple profiles (European, Industrial, Automotive), it accommodates various applications including air tools, paint guns, and blow guns. With a 3-year warranty for long-term reliable use.

One-push safe connection & disconnection
Safety lock mechanism prevents accidental disconnection
European, Industrial & Automotive profiles
High pressure support up to 16 bar (232 psi)
Nickel-plated brass & stainless steel durability
3-year warranty & EU 2014/68 (PED) certified

prevoS1 Features

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One-Push Safe Attachment/Detachment

Connect and disconnect with just a button press. Safety lock mechanism prevents accidental sudden disconnection.

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Multi-Profile Support

Multiple profiles including European (DN 7.4), Industrial (DN 10.4), and Automotive to match your site's standards.

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High Flow Design

Optimized internal flow path design minimizes pressure loss and maximizes air tool performance.

Durability & Economy

High-quality materials (nickel-plated brass, stainless steel) achieve long service life. Reduces maintenance costs.

Coupling Product Lineup

A comprehensive coupling system covering 4 fluid categories

Compressed Air Couplings

Over 267 models. Industrial couplings pursuing safety, flow rate, and durability

FLAGSHIP

prevoS1 (ESI / ISI Series)

Patented one-push safety coupling. Silicone-free, anti-static construction with ATEX Zone 2 certification. 3-year warranty.

prevoS1 ESI/ISI Series full lineup
Safety Features (Patented Technology)
  • One-push connection/disconnection - two-stage method with automatic depressurization before disconnection
  • Anti-whiplash mechanism (patented) prevents hose recoil
  • Zero air leakage when connected and disconnected (with Prevost nozzle)
  • ISO 4414 compliant safety design
Supported Profiles
ProfileStandardIdentification Color
Profile IISO 6150 BBlue
Profile CISO 6150 CGray
Profile EEuropeanGreen
Profile UTruflateRed
ARO 210ARO 210
BritishBritish Standard
AsianAsian Standard
Flow Performance (P=6 bar, delta P=0.6 bar)
Bore (mm)ProfileFlow Rate (L/min)
6ISO 6150 B / ISO 6150 C / Truflate833
6ARO 210800
6British750
7.4European1,820
8ISO 6150 B / ISO 6150 C / Truflate2,028
11ISO 6150 B / European / Truflate3,686
High-Flow Model (11EB - 11mm Bore)
SpecificationComposite (Polyamide)Stainless Steel
Flow Rate (at 6 bar)3,686 L/min3,686 L/min
Weight177 g445 g
Operating Pressure2-12 bar2-16 bar
FeaturesLightweight, scratch-resistant, anti-staticCorrosion-resistant, high durability, anti-static
Connection Types
Female Thread (G1/4, G3/8, G1/2) Male Thread Hose Type Swivel Thread Bulkhead Twin Coupler Adapter (IRP / CRP)
ESI 07 Series Dimensions & Weight (European 7.4mm)
ModelThreadWeightLength ADim. BDim. C
ESI 071101G1/4 Female0.124 kg73.3 mm32.25 mm23 mm
ESI 071102G3/8 Female0.117 kg73.3 mm32.25 mm23 mm
ESI 071103G1/2 Female0.129 kg80.3 mm32.25 mm26 mm
ESI 071151G1/4 Male0.127 kg81.3 mm32.25 mm23 mm
ESI 071152G3/8 Male0.130 kg82.3 mm32.25 mm23 mm
ESI 071153G1/2 Male0.130 kg84.3 mm32.25 mm26 mm

CSM Safety Coupling

Metal body safety coupling. Combines high reliability and durability. ISO 6150 C compatible.

Metal Body Safety Lock High Durability Air Leak Prevention ISO 6150 C

Used as a combination of CSI coupling + CRP adapter. Robust design ideal for long-term industrial use.

Prolac Coupling

Compact design with push connection and button disconnection. Lightweight body resists fatigue during extended use.

Push Connection Button Disconnect Compact Lightweight Instant Disconnect

Ergonomic design ideal for sites with frequent attachment/detachment. Reduces fatigue and improves work efficiency.

IRM Metal Coupling

Full metal body robust coupling. Maximum toughness to withstand harsh environments.

Full Metal Maximum Durability Harsh Environment High Robustness

Provides maximum durability for extremely harsh conditions found in construction sites, foundries, and heavy industry.

Available Materials & Thread Standards
Materials
Steel Stainless Steel Composite Aluminum Polyamide
Thread Standards
G1/4 G3/8 G1/2 R1/4 NPT

Breathing Air Couplings (BAC / BAP)

For personal protective equipment and medical devices. Anti-disconnection mechanism protects lives

BAC / BAP Series

Precision-dimensioned design for complete sealing. Dedicated mechanism prevents unintended disconnection from accidental operation.

Anti-Disconnection Complete Seal Chrome-Plated Brass EURO_LONG Profile
SpecificationValue
Bore7.2 mm
MaterialChrome-plated brass
Operating Pressure6 bar
ProfileEURO_LONG
Valve TypeValved / Straight-through
ThreadG1/4
ModelType
BAC 071101Long Profile Female Thread Coupler
BAC 071151Long Profile Male Thread Coupler
BAP 076150SHLong Profile Male Thread Adapter
BAC 07CA / BAP 07CAProtective Plug

Cooling Circuit Couplings (CPI / PREOL)

For injection mold temperature control, welder cooling, and machine tool washing. 46 models available.

CPI Connector

Compact body achieving high flow rates. Available in 8mm and 12mm bore sizes.

8mm / 12mm Bore High Flow Compact Injection Molding

PREOL Coupling

Versatile compact coupling for cooling circuits.

Compact Design Multi-Purpose Industrial Cooling
SpecificationOptions
Bore6mm (Type 11) / 8mm (Type 19) / 9mm / 12mm (Type 14) / 16mm
MaterialBrass / Chrome-plated brass / Nickel-plated brass / Polyamide
ThreadG1/8, G1/4, G3/8, G1/2, R1/8, R3/8, R1/2, NPT1/2
Valve TypeValved (Type 10) / Straight-through (Type 36)

Water Couplings (ELS / ELP)

For cold water and cleaning agents. From maintenance and car washing to food processing and construction sites

ELS / ELP Series

Valve-gasket-spring shut-off system achieves complete sealing during connection and disconnection.

Complete Seal Brass / Galvanized Steel 9mm Bore G1/2, G3/4, G3/8
ModelType
ELS 090103Straight-through Female Thread Coupler
ELS 090153Straight-through Male Thread Coupler
ELS 091103Valved Female Thread Coupler
ELS 091153Valved Male Thread Coupler
ELS 091813Valved Hose Tail Coupler
ELS 092154Bulkhead Coupler
ELP 096103Female Thread Adapter
ELP 096153Male Thread Adapter
ELP 096813Hose Tail Connector

Starter Kits

Ready-to-use coupling + adapter sets

ISO 6150 B Profile Kit

  • G3/8 Female Swivel Coupling (ISI 061102SW) x 1
  • G1/4 Female Adapter (IRP 066101) x 2
  • Hose Tail Adapter ID 10mm (IRP 066810) x 1
  • Ear Clamps x 2

ISO 6150 C Profile Kit

  • G1/4 Female Coupling (CSI 061101) x 2
  • G1/4 Female Adapter (CRP 066101) x 2
  • G1/4 Male Adapter (CRP 066151) x 2
  • Hose Tail Adapter ID 8mm (CRP 066808) x 2

prevoS1 Key Specifications

prevoS1 certification logos - ISO 4414, ATEX Zone 2, EU PED 2014/68

Applications

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Automotive Repair Shops

For connecting air tools such as impact wrenches and paint guns. Safe and reliable even with frequent attachment/detachment.

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Production Lines

Stable connections for air cylinders and air blow processes. Contributing to improved line productivity.

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Maintenance Sites

Air tool connections during maintenance work. Safety lock mechanism ensures worker safety.

Want to Learn More About prevoS1 Safety Couplings?

We are happy to assist with product selection, demos, and implementation consultation. Please feel free to contact us.

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