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MANULI HYDRAULICS
2020 QUICK COUPLINGS

2020 QUICK COUPLINGS

Product catalog summary

Introduction
Q.Safe by Manuli Hydraulics offers high-quality quick coupling products that are environmentally friendly and exceed ISO 4520 standards. They feature E-Coat 500 and optional E-Coat 1000 for enhanced corrosion resistance, ensuring leak-free performance and interchangeability with other market products. Quality control includes visual, functional, and air sealing tests.

Applications
Q.Safe quick couplings are suitable for various fields:

Agriculture and Forestry: Includes ISO 7241-A standard couplings, hydraulic braking systems, flat face, screw-type, diagnostic, and direct hose integration couplings.
Construction Equipment and Utility Vehicles: Features high static pressure screw-type couplings and wing nut screw types.
Oil & Gas: Specialized couplings like MQS-SO and MQS-BOP.
Mining: Includes standard, flat face, and heavy-duty screw couplings.
Industry: Offers flat face, heavy-duty screw, and diagnostic couplings.

Quick Coupling Selection
Selection should consider pressure, flow rate, connection under pressure, fluid compatibility, temperature, and environmental conditions. Proper maintenance and precautions are advised to prevent damage and ensure longevity.

MQS-DHI “Direct Hose Integration”
This system allows direct assembly to hoses, reducing leakage risk and assembly costs, and improving safety and maintenance.

Q.Safe Flat Face Multiconnectors
These connectors enhance efficiency and safety, allowing high pressures and flow rates with minimal oil spillage and easy cleaning.

Technical Specifications
Detailed specifications for various quick coupling series are provided, including working pressure, flow rates, and material descriptions. The document includes tables with dimensions and part numbers for different coupling types.

Specifications

Termination Ends: BSP, Metric, NPTF, and SAE termination ends conform to standards such as DIN 3852, ISO 6149, ANSI B1.20.3, and SAE J1926-1.
Dimensions: Detailed dimensions are provided for each coupling type, including thread size, diameter, and length measurements.
Working Pressure: Designed to handle dynamic pressures up to 50 MPa (7250 PSI) depending on the size and type.
Rated Flow: Specified at a pressure drop of 0.2 MPa, with maximum recommended flow rates being 1.5 times the rated flow.

Materials and Construction

Made from high-grade carbon steel with hardened areas for stress points. Seals are typically made from NBR and polyurethane, with PTFE back-up rings.
Special versions like the MQS-BOP feature Viton seals and enhanced corrosion protection.

Performance and Testing

Temperature Range: Operating temperatures range from -22°F to +230°F (-30°C to +110°C), with options for specific seals for other temperatures.
Safety Factor: A safety factor of 4:1 is maintained for dynamic pressures.
Impulse Testing: Tested for 100,000 to 500,000 cycles at pressures exceeding the rated values, conforming to ISO 18869 standards.

Product Features

Interchangeability with ISO 7241 series A and B standards.
Simple connection and disconnection mechanisms, often involving a sleeve pull-back system.
Specific designs for high-pressure applications and safety systems to prevent accidental disconnection.

Technical Specifications
Provides detailed specifications for bi-directional check valves used in hydraulic systems. Made from high-quality steel with NBR seals, designed to minimize leak points with direct-to-hose connections. The working temperature range is from -22ºF to +230ºF (-30ºC to +110ºC), with a safety factor of 4:1 for dynamic pressures. Impulse pressure is tested for 1,000,000 cycles at 120% of the rated pressure.

Valve Types and Configurations
Outlines various valve types, including standard, compact, calibrated, and bi-directional. Details input/output configurations and provides a guide on constructing part numbers for bespoke check valves.

Performance Data
Rated for a working pressure of 35 MPa (5075 PSI) with a minimum burst pressure of 140 MPa (20300 PSI). Rated flow at a 0.2 MPa pressure drop varies by size.

Nominal Sizes and Dimensions
Lists nominal sizes ranging from 1/4" to 1", with corresponding part numbers, opening pressures, and dimensions.

Bespoke Solutions Program
Manuli Hydraulics offers a Bespoke Solutions Program (BSP) to tailor check valves to specific customer requirements, allowing customization in valve type, material, seal material, and termination end types.

Part Number Construction
Provides a detailed explanation of the part numbering system, including digits representing check valve type, input/output configuration, valve material, seal material, termination end type, crack pressure, and tube sizes.

Catalog excerpts

QUICK COUPLINGS

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Q.SAFE QUICK COUPLINGS INTRODUCTION Q.Safe is the Manuli Hydraulics offering for quick coupling applications. Composed of an ever-expanding range of products, the Q.Safe brand has rapidly become an industry byword for quality and performance. The entire Q.Safe product range is manufactured with our E-Coat 500 treatment which provides an environmentally friendly surface coating (chrome free) far exceeding ISO 4520 requirements (salt spray resistance: 240 hours for white corrosion and 500 for red corrosion). Some Q.Safe products also have the option to upgrade to our new E-Coat 1000 plating which...

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Q.SAFE QUICK COUPLINGS QUICK COUPLING SELECTION To ensure that you select the correct quick coupling for your needs, Manuli Hydraulics recommends that the following factors be considered: Pressure and Flow Rate - The selected quick coupling must always be suitable for the pressure and flow rate in the system. Always check that the selected quick coupling’s maximum working pressure is equal to or greater than the maximum pressure of the system (including pressure spikes). Connection Under Pressure - Many quick couplings can only be connected / disconnected when the line pressure has been reduced...

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Q.SAFE QUICK COUPLINGS MQS-DHI “DIRECT HOSE INTEGRATION” An innovative system to enable direct assembly of the quick-release coupling to the flexible hose, and therefore avoiding intermediate connection elements. Some of the benefits of this solution are: • Reduced risk of oil leakage • Elimination of unscrewing problems in the field • Reduction in the number of assembly elements leading to reduced assembly cost, minimised risk of assembly operation mistakes and greater safety in severe working conditions, as well as easier maintenance and replacement operations Design solutions are available...

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Q.SAFE INDEX Q.SAFE QUICK COUPLINGS QUICK COUPLINGS SERIES FEMALE MALE SHUT-OFF SYSTEM SHIELDED POPPET POPPET VALVE BALL VALVE SIZE SPECIFICATIONS CONNECTION ISO 7241 SERIES A LOCKING BALLS POPPET VALVE ISO 7241 SERIES A LOCKING BALLS ISO A CONNECTABLE WITH MALE UNDER PRESSURE POPPET VALVE ISO 7241 SERIES A LOCKING BALLS ISO A CONNECTABLE WITH BOTH PARTS UNDER PRESSURE POPPET VALVE ISO 7241 SERIES A LOCKING BALLS POPPET VALVE ISO 7241 SERIES B LOCKING BALLS ISO 7241 SERIES B POPPET VALVE + FLAME TEST RES. LOCKING BALLS TO API 16D POPPET VALVE ISO A CONNECTABLE UNDER PRESSURE BALL VALVE LOCKING...

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Q.SAFE INDEX QUICK COUPLINGS SERIES FLAT VALVE LOCKING BALLS FLAT VALVE ISO 16028 E HTMA (ONLY 3/8” SIZE) LOCKING BALLS FLAT-FACE HIGH PRESSURE FLAT VALVE ISO 16028 E HTMA (ONLY 3/8" SIZE) LOCKING BALLS FLAT-FACE CONNECTABLE UNDER PRESSURE FLAT VALVE ISO 16028 E HTMA (ONLY 3/8” SIZE) LOCKING BALLS FLAT-FACE SCREW TYPE FLAT VALVE MANULI STANDARDS SCREW-ON SLEEVE POPPET VALVE GERMAN MARKET INTERCHANGEABLE ISO 14541 (FROM 3/8" TO 3/4") SCREW-ON SLEEVE SCREW HEAVY DUTY POPPET VALVE GERMAN MARKET INTERCHANGEABLE ISO 14541 (FROM 3/8" TO 3/4") SCREW-ON SLEEVE SCREW HEAVY DUTY POPPET VALVE FRENCH MARKET...

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Q.SAFE INDEX Q.SAFE MULTICONNECTORS MULTICOUPLING SERIES MULTICOUPLING SERIES PAGE inch Dash No. inch Dash Q.SAFE ACCESSORIES SIZE ACCESSORY TYPE

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MQS-A TYPE Pressure Drop Pressure Drop [PSI] Pressure Drop Flow Rate [US gallons/min] WORKING PRESSURE (Dynamic) RATED FLOW at 0.2 MPa of pressure drop OIL SPILLAGE CONNECTION Connection/ EFFORT Disconnection CONNECTION/ DISCONNECTION UNDER PRESSURE MINIMUM BURST PRESSURE Male cubic inch MPa PSI The rated flow represents the normal operating condition. The maximum recommended flow rate is equal to 1.5 times the rated flow PRODUCT DESCRIPTION • • • • • • Reference series on the agriculture and industrial market Simple connection and disconnection by pulling back the sleeve Positive, quick connection...

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MQS-A TYPE BSPT TERMINATION ENDS TO ISO 7-1 TAPERED PART NUMBER Female coupling Male coupling PART NUMBER Female coupling Male coupling

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MQS-A TYPE BSP TERMINATION ENDS TO DIN 3852 X TYPE PART NUMBER Female coupling Male coupling METRIC TERMINATION ENDS TO ISO 8434-1 L SERIES PART NUMBER Female coupling Male coupling

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MQS-A TYPE METRIC TERMINATION ENDS TO ISO 8434-1 S SERIES PART NUMBER Female coupling Male coupling METRIC TERMINATION ENDS TO ISO 6149-1 PART NUMBER Female coupling Male coupling

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MQS-A TYPE METRIC TERMINATION ENDS TO ISO 8434-1 BULKHEAD L SERIES PART NUMBER Inch Dash Female coupling Male coupling METRIC TERMINATION ENDS TO ISO 8434-1 BULKHEAD S SERIES PART NUMBER Inch Dash Female coupling Male coupling

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MQS-A TYPE METRIC TERMINATION ENDS TO ISO 3852-1 X TYPE PART NUMBER Female coupling Male coupling NPTF TERMINATION ENDS TO ANSI B 1.20.3 PART NUMBER Female coupling Male coupling 1/4" NPTF 3/8" NPTF 1/2" NPTF 1/2" NPTF 3/4" NPTF 3/4" NPTF 1" NPTF 1.1/4" NPTF 1.1/2" NPTF PART NUMBER Female coupling Male coupling

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MQS-A TYPE PART NUMBER Female coupling Male coupling SAE TERMINATION ENDS TO ISO 8434-2 BULKHEAD PART NUMBER Female coupling Male coupling PART NUMBER Female coupling Male coupling ORB TERMINATION ENDS TO SAE J1926-2 S SERIES

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MQS-A TYPE ORFS TERMINATION ENDS TO ISO 8434-3 F PART NUMBER Female coupling Male coupling

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MQS-A TYPE ISO A SHIELDED POPPET VALVES Q00411041A BSP TERMINATION ENDS TO DIN 3852 X TYPE PART NUMBER Male coupling NPTF TERMINATION ENDS TO ANSI B 1.20.3 PART NUMBER Male coupling PART NUMBER Male coupling

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MQS-A TYPE Pressure Drop Pressure Drop [PSI] Pressure Drop Flow Rate [l/min] Flow Rate [US gallons/min] WORKING PRESSURE (Dynamic) RATED FLOW at 0.2 MPa of pressure drop OIL SPILLAGE CONNECTION Connection/ EFFORT Disconnection CONNECTION/ DISCONNECTION UNDER PRESSURE MINIMUM BURST PRESSURE Male cubic inch MPa PSI The rated flow represents the normal operating condition. The maximum recommended flow rate is equal to 1.5 times the rated flow PRODUCT DESCRIPTION Female couplings in steel, with some hardened areas, in correspondence to the most stressed points. Male couplings in high grade carbon...

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