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Rating for spring hinges?
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RELATED FAQS
Question
Answer
Is the spring torque on 3SP1 hinge adjustable?
Resolution:
Yes, the spring torque on 3SP1 butt hinge is adjustable. See the 3SP1 instructions: :
Why is the Von Duprin 55 or 88 series crossbar sagging?
Resolution:
There are a number of reasons the Von Duprin 55 or 88 series cross bar may not operate properly:The hinge case spring lifts both lever arms and the crossbar. To check spring, push down on...: