ANSI/ API and ISO Certified Fireproof Interlock

July 31, 2013
The MRL Multi Rotation Lock from Netherlocks has been awarded the Fire Test Certificate according to ANSI/ API and ISO standards.

The MRL Multi Rotation Lock from Netherlocks has been awarded the Fire Test Certificate according to ANSI/ API and ISO standards. The award certifies that even in the event of a fire, the MRL will continue to function safely as intended without causing additional interruption to the normal procedure of operation afterwards.

During testing, the MRL interlock was subjected to sustained temperatures above 1800°F for approximately 20 minutes. After cooling down, the interlock functioned correctly to safely lock and unlock the handwheel valve according to specification.

The test, performed by Yarmouth Research and Technology (North Yarmouth, Maine), found the MRL to be compliant with ANSI/ API Standard 607 Sixth Edition – 2010 and ISO 10497:2010. During the test, the MRL was burned with one key in the lock. After cooling, the lock remained securely locked unless both keys were inserted, whereby it unlocked and operated smoothly as intended.

The Netherlocks MRL is an interlock for multi rotation handwheel operated valves. The interlock operates with a series of keys that lock into place, and are impossible to remove out of sequence. This eliminates human error when improper operation of a valve could cause injury to personnel or damage to equipment.

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