Universal Hinge

 The Only Turn-Key Solution for Bolted On Hinged Entry Into Every Access Cover

Universal Hinge

Universal Hinge Bolt-On Hinge™ Patented Worldwide

No Rigging. No Welding. No Dropping Heads. 
Increased Safety For Your Workers. 

The Bolt-On Hinge™ is the safest , most efficient, cost effective bolted-on hinged solution allowing for easy opening and closing of access covers on HVAC Chillers, Condensers, Heat Exchangers, Manways, Storage Tanks, Blind Flanges and more.


Round, Oval, Obround, Flat, Domed, Curved, Elliptical or Any Combination access cover bolted to a flange, we have a Bolt-On Hinge™ that is a perfect fit. 

  • Maximize Employee & Worker Safety

    Under OSHA law, employers have a responsibility to provide a safe workplace and Universal Hinge Bolt-On Hinge ™ helps you to achieve this obligation. 


    The Bolt-On Hinge ™ is the safest way to open and close access covers for inspection and maintenance.  It is installed while the access cover is attached to its mating flange. Once installed, the cover can be opened and closed just as easily and safely as you do a door. 


    The access cover is ALWAYS FULLY SUPPORTED, it is never free to fall.  With the Bolt-On Hinge™ never again will you need to “lay down the heads” risking worker injury. 

  • Eliminate Rigging!

    Installed while the cover is in place, the Bolt-On Hinge™ ALWAYS FULLY SUPPORTS the access cover. This totally eliminates the expense and risk to employees typically associated with rigging, chain falls, straps, cables, cranes, gantries, or any removal device.  


    Never again will you need to find a safe place to store heavy access covers while your mechanics perform necessary maintenance, inspection and emergency fixes of equipment. 


    The Bolt-On Hinge™ ALWAYS FULLY SUPPORTS the access cover allowing for easy, safe opening and closing just as one would open and close a door.

  • Reduce Down Time

    One or two workers can safely and easily install a Bolt-On Hinge™ in a fraction of the time it takes to “drop the heads”. The Bolt-On Hinge™ is installed while the access cover is attached to its flange. This eliminates the need for the extended down time hours and incremental workers traditionally required for assembling and rigging of special equipment to remove, store and then reattach the access cover. 


    The Bolt-On Hinge™ ALWAYS FULLY SUPPORTS the access cover and will take your mechanic approximately 15 minutes, NOT hours to quickly and safely open the cover to perform the required service.  Down time is reduced. Liability is reduced. Employee Safety is enhanced.

  • No Welding! No Recertification!

    The Bolt-On Hinge™ is installed while the access cover is attached to its mating flange. It is fastened by using the existing bolt holes in the cover and the mating flange. Installation does not require any hot work or welding eliminating the need to recertify the vessel.  

Universal Hinge Bolt-On Hinge™ Patented Worldwide

Covered by One or More of the Following Patents: 
US Patent Nos. 7,810,671; 7,931,168; 8,038,031; 8,499,501; 8,763,850; 8,784,024; 9,631,658; 9,752,296; 9,752,297; 9,764,892; 9,915,279; 10,060,091 - EP Patent Nos. 1,983,235; 2,976,185
 - JP Patent No. 5307440 - CA Pat. Nos. 2,629,106; 2,733,229;  2,907,430; 2,954,252; 2,997,542 - AU Patent Nos. 2014235891B2; 2014401842B2; 2015400392B2
Other Patents Pending