QUICK COUPLINGS DHI

Product catalog summary

Introduction
The document introduces the MQS-DHi system, which allows direct assembly of quick-release couplings to flexible hoses, eliminating intermediate connections. This innovation reduces oil leakage risks, unscrewing issues, and assembly costs, while enhancing safety and maintenance ease.

Specifications
The document details various series of quick couplings, including ISO A, ISO B, Push-Pull, and Flat-Face. Each series is designed for specific applications and includes specifications such as working pressure, rated flow, connection effort, and oil spillage.

Materials and Construction
Couplings are made from high-grade carbon steel with hardened areas for stress points. Seals are typically NBR, with options for other materials. The working temperature range is -22ºF to +230ºF.

Safety and Testing
All couplings have a safety factor of 4:1 for dynamic pressures and are tested for 100,000 cycles at 133% of the rated pressure. They conform to ISO standards for interchangeability and performance.

Product Descriptions
Each coupling type is described with its connection method, such as pull-back sleeve or push-pull systems, and features like positive connection and shut-off valves. The document emphasizes the use of high-resistant materials and compliance with international standards.

Dimensional Data
Tables provide detailed dimensions for each coupling type, including part numbers, thread sizes, and specific measurements for both male and female couplings.

Catalog excerpts

QUICK COUPLINGS

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Q.SAFE DHI INTRODUCTION 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 DHI INDEX QUICK COUPLINGS SERIES FEMALE COUPLING MALE COUPLING SHUT-OFF SYSTEM Poppet Valve Locking Balls Poppet Valve Locking Balls Poppet Valve Locking Balls Flat Valve Locking Balls MQS-DHI Flat-face

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MQS-DHI ISO A - TERMINATION ENDS RATED WORKING FLOW CONNECTION PRESSURE at 0.2 MPa EFFORT (Dynamic) of pressure drop OIL SPILLAGE Connection/ Disconnection MINIMUM BURST PRESSURE CONNECTION/ DISCONNECTION UNDER PRESSURE cubic inch Pressure Drop Pressure Drop Flow Rate [l/min] Flow Rate [US gallons/min] Product description: • Dimensional and performance requirements conform to ISO 7241-1 series A, ensuring worldwide interchangeability • Connect by pulling back the sleeve (with female ISO A) • Positive connection by the locking ball system • Shut-off poppet valve provides an effective hydraulic...

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MQS-DHI ISO A - TERMINATION ENDS Q30811MF1A FEMALE ISO-A COUPLING MULTIFIT INSERT Q30211MF1A MALE ISO-A COUPLING MULTIFIT INSERT Female coupling Male coupling PART NUMBER

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MQS-DHI PUSH-PULL - TERMINATION ENDS RATED WORKING FLOW CONNECTION PRESSURE at 0.2 MPa EFFORT (Dynamic) of pressure drop OIL SPILLAGE Connection/ Disconnection MINIMUM BURST PRESSURE CONNECTION/ DISCONNECTION UNDER PRESSURE cubic inch Pressure Drop Pressure Drop Flow Rate [l/min] Flow Rate [US gallons/min] Product description: • Female coupling designed for agriculture applications, connectable with ISO 7241-1 series A male couplings • PUSH-PULL connection and disconnection system, in case of bulkhead mounting on the external sleeve • Break-away function according to ISO 5675 (in case of bulkhead...

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MQS-DHI PUSH-PULL - TERMINATION ENDS Q31311MF1A FEMALE PUSH PULL COUPLING MULTIFIT INSERT PART NUMBER Size -08 Female coupling

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MQS-DHI ISO B - TERMINATION ENDS RATED WORKING FLOW CONNECTION PRESSURE at 0.2 MPa EFFORT (Dynamic) of pressure drop OIL SPILLAGE Connection/ Disconnection MINIMUM BURST PRESSURE CONNECTION/ DISCONNECTION UNDER PRESSURE cubic inch Pressure Drop Pressure Drop Flow Rate [l/min] Flow Rate [US gallons/min] Product description: • Reference series for all industrial applications • Simple connection and disconnection by pulling back the sleeve • Positive, quick connection of the male into the female by latching the ball system • Shut-off by poppet valve • High resistant materials • Interchangeable...

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MQS-DHI ISO B - TERMINATION ENDS Q32411MF1A Q32111MF1A FEMALE & MALE ISO B COUPLINGS MULTIFIT INSERT PART NUMBER Female coupling Male coupling

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MQS-DHI FLAT FACE - TERMINATION ENDS RATED OIL FLOW CONNECTION SPILLAGE at 0.2 MPa CONNECTED DISCONNECTED EFFORT Connection/ of pressure Disconnection (Dynamic) (Dynamic) drop WORKING WORKING PRESSURE - PRESSURE - CONNECTION/ DISCONNECTION MINIMUM BURST PRESSURE UNDER PRESSURE Male Female M&F cubic inch MPa PSI MPa PSI MPa PSI Pressure Drop Pressure Drop Flow Rate [l/min] Flow Rate [US gallons/min] Product description: • Connection is made by pushing the male coupling and disconnection by pulling back the sleeve of the female • Flat mating surfaces easily wiped clean to prevent contamination...

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MQS-DHI FLAT FACE - TERMINATION ENDS Q34111MF1A FEMALE FLAT FACE COUPLING MULTIFIT INSERT Q33911MF1A MALE FLAT FACE COUPLING MULTIFIT INSERT PART NUMBER Female coupling Male coupling

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