MQDB Series Multi Quick Disconnect Blindmate Couplings

Parker MQDB Series Quick Disconnect Couplings are high-performance liquid cooling connectors developed in collaboration with NVIDIA to meet the evolving demands of data center liquid cooling. MQDB plugs and sockets are designed for interoperability and are interchangeable with other approved MQDB manufacturers.

Manufactured from high-quality stainless steel, Parker MQDB quick disconnects are available in multiple sizes and port configurations for integration with servers, IT equipment, inner manifolds, and high-performance computing systems. Their compact design supports reliable coolant connections within space-sensitive data center and electronics cooling applications.

Parker MQDB Series couplings feature a flush-face, non-spill valve design that helps minimize fluid loss while protecting sensitive electronic components. Each coupling is assembled and tested in a clean-room environment to help reduce contamination, with final assemblies undergoing helium leak testing for dependable quality and performance.

MQDB Quick Disconnect Technical Characteristics

• Sizes: 02–04 (1/8"–1/4")
• Material: Stainless Steel
• Port Ends: Male ORB, Male BSPP, Custom MQDB Port
• Seal Material: EPDM

Data Center Liquid Cooling Applications

• Data Center Liquid Cooling
• Server Liquid Cooling
• High-Performance Computing (HPC)
• AI Computing Infrastructure
• Supercomputers
• Inner Manifold Connections
• Rackable Server Systems
• Information Technology Equipment
• Electronics Cooling

MQDB Features & Benefits

• Interchangeable design: Plugs and sockets are interoperable with other approved MQDB manufacturers.
• Non-spill flush-face design: Helps minimize coolant loss and protect sensitive electronics during connection and disconnection.
• Reduced pressure drop: Supports efficient coolant flow, improved energy efficiency, and overall liquid cooling system performance.
• Helium leak tested: End-of-line helium leak testing provides additional quality assurance for demanding data center cooling applications.
• Clean-room assembly: Controlled manufacturing and assembly processes help reduce contamination within critical liquid cooling systems.
• Stainless steel construction: Provides durability and reliable performance for demanding server and electronics cooling environments.
• Global support: Backed by Parker's global manufacturing and service capabilities.