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About
About Downing
Manufacturing
Careers
Contact
Drilling
Wellheads
MultiBowl
Speed Heads
Conventional
BOP Quick Connect
Offline Cementing
One-Piece Mandrel Packoff
Freedom Series Tubing Head
Completions
Freedom Series
FS Completion System
FS Hot Swap
FS iControl
FS Flowline
FS Equalizer
FS Net
FS Flowline Quick Connect System
Frac Equipment
Valves
Coil Saver
Production
FS Lubricator
Solutions
Completion Solutions
Automated Pump Swaps
Continuous Pumping
Remote Operations
Automated Completions
Simul-Frac
ESG
Faster Pump Swaps
Faster Rig Up
Frac Data Solutions
Coil Saver
Wellhead Solutions
3+ String Systems
2 String Systems
5k Applications
Batch Drilling
BOP Quick Connect
Carbon Capture
ESP-compatible Wellheads
Lithium Wellhead
Offline Cementing
Pin-less Tubing Head
Production Enhancement
Saltwater Disposal
Well Control
Engineered Solutions
Production
Automated Snubbing
Field Services
News & Reports
Case Studies
White Papers
Industry Articles
Technical Papers
Podcasts & Video
Partnerships
MB-4 QC
A Metal to Metal Sealing BOP Quick Connector
Contact Us
MB-4 QC
A Metal to Metal Sealing BOP Quick Connector
Contact Us
Enjoy significant time savings while maintaining API connection strength with the Downing MB-4 Quick Connect System
Improve Safety
Metal seal maintains BOP connection pressure integrity at elevated temperatures where an elastometer would fail
Torque and test crew with hydraulic Enerpac-style torque wrench not required for makeup/breakout
Increase Time Savings
Demonstrated 15-minute makeup time
One hour saved per full BOP rig up/down cycle
Significant time savings in batch drilling scenario
Contact Us
Application:
Batch / Pad Drilling
Key Features:
5,000 and 10,000 psi options
Metal to metal seal using standard API BX ring gaskets
Low torque makeup
Full API 6A F connection strength
Rated for full bore working pressure + bending load