Introduction
Q.Safe by Manuli offers a solution for the efficient and secure connection and disconnection of hydraulic system components. It features a Cr3+ surface coating for enhanced corrosion resistance, surpassing ISO 4520 standards. The product line includes over 700 references, with options for accessories, spare parts, check valves, and direct hose integration.

Specifications and Standards
Products undergo strict quality controls, including visual, functional, and air sealing tests. Couplings must match application pressure and flow rate, with specific options for connections under pressure.

Precautions and Maintenance
Ensure fluid and material compatibility, verify temperature requirements, and consider environmental impacts. Regular maintenance includes cleaning, using protective caps, and replacing damaged parts.

Specifications
PTFE couplings operate between -22°F to +230°F (-30°C to +110°C). Safety factors are 1:4 for dynamic and 1:2 for static pressures. Impulse pressures are tested for 500,000 cycles at 120% of rated pressure per ISO 7241-2.

Procedures
Couplings are designed for easy connection/disconnection by pulling back the sleeve, connectable under pressure, and feature a mechanical valve block system. They are interchangeable per ISO 7241-1 part A.

Materials
Female couplings are steel with hardened stress points, carbonitrided valves and sleeves, C98 steel springs, NBR seals, and PTFE back-up rings. Other materials available upon request.

Technical Information
Includes working pressure, rated flow, connection effort, oil spillage, and minimum burst pressure for various sizes. Designed for high pressures up to 30 MPa.

Recommendations
Use within specified temperature and pressure ranges. Specific seals are recommended for non-standard temperatures. Regular testing and maintenance ensure longevity and reliability.

Norms and Standards
Conforms to ISO 7241-2, ensuring compatibility and interchangeability. References BSP and NPT termination ends per DIN 3852 and ANSI B 1.20.3.

Key Data from Tables
Tables provide dimensions, part numbers, thread types, working pressure, rated flow, connection effort, oil spillage, and minimum burst pressure for different sizes.

Graphical Data
Pressure drop graphs show flow rate versus pressure drop in metric and imperial units, illustrating performance under different conditions.

Material Specifications
Couplings are steel with hardened areas, carbonitrided valves, C98 steel springs, and NBR seals with PTFE back-up rings. Alternative materials available upon request.

Safety and Pressure Specifications
Safety factor is 1:4 for dynamic and 1:2 for static pressures. Couplings withstand 1,000,000 cycles at 133% of rated pressure per ISO 7241-2 and ISO 16028:1997aMD.1.2006(E).

Connection and Disconnection
Instructions for applying tightening torque during connection/disconnection, emphasizing proper torque application.

Warnings and Recommendations
Advised to hold the coupling body with a wrench during torque application to prevent damage. Highlights interchangeability with similar market products.

Technical Document Summary
1. Specifications: Details on hydraulic couplings and check valves for high-pressure applications, with materials and temperature ranges.
2. Procedures: Connection/disconnection procedures for screw-type couplings, interchangeable with other products.
3. Standards: Conforms to ISO 7241-2 for reliability and safety.
4. Recommendations: Use specific seals for different temperature ranges and appropriate tightening torque.
5. Key Data from Tables and Graphs: Dimensions, part numbers, pressure ratings, and performance characteristics.
6. Additional Information: Check valves as safety devices, with MQS-CV and MQS-CVC families.

Technical Specifications: Quick release couplings with material, temperature, safety, and pressure resistance details. Tested for 100,000 cycles at 133% of rated pressure per ISO 7241-2.

Connection and Disconnection: Flat-face couplings prevent contamination and spillage, interchangeable per ISO 16028 and HTMA.

Pressure and Flow Rate: Tables show pressure drop versus flow rate, working pressure, rated flow, and minimum burst pressure.

Accessories and Spare Parts: Importance of protective dust plugs and caps, availability of replacement seals using original Manuli Q.Safe parts.

Overview: Specifications for caps, plugs, and O-rings in MQS series, with materials, sizes, and part numbers.