UL PRODUCT CATEGORY

[Fire Doors] (Hardware) (Builders' Hardware) Flush and Surface Bolts, Self-latching Type, GXVV


See General Information for Builders' Hardware

715.4715.4.3715.4.7.1

GENERAL

This category covers self-latching flush and surface bolt assemblies intended to secure the inactive door of swinging fire doors mounted in pairs with the active door provided with a certified single-point latch.

All products in this category comply with the positive-pressure requirements in ANSI/UL 10C, "Positive Pressure Fire Tests of Door Assemblies."

They have been investigated only with respect to fire protection for a period of 3 h on doors mounted in pairs not exceeding 8 ft in either dimension (unless otherwise noted in the individual certifications). For certifications of assemblies investigated for both fire protection and panic features, see Fire-exit Hardware (GXHX). For certifications of automatic flush and surface bolts, see Flush or Surface Bolts, Automatic Type (GXOW), and for certifications of manual flush and surface bolts, see Flush or Surface Bolts, Manual Type (GXSR).

These assemblies consist of either individual self-latching top and bottom flush bolt units actuated by a trigger mechanism or concealed and surface mounted vertical rod mechanisms with top and bottom bolts, a release lever, operating handle, or thumb turn, strikes, the necessary mounting screws, and installation instructions. A coordinator may be provided.

PRODUCT IDENTITY

One of the following product identities appears on the product:

    Self-latching Flush Bolt

    Self-latching Surface Bolt

ADDITIONAL INFORMATION

For additional information, see Hardware (GWGR), Fire Doors (GSNV) and Fire Resistance Ratings (BXRH).

REQUIREMENTS

The basic standard used to investigate products in this category is ANSI/UL 10C, "Positive Pressure Fire Tests of Door Assemblies."

UL MARK

The Certification Mark of UL on the product is the only method provided by UL to identify products manufactured under its Certification and Follow-Up Service. The Certification Mark for these products includes the UL symbol, the words "CERTIFIED" and "SAFETY," the geographic identifier(s), and a file number.

Additional Certification Markings

The UL symbol, the letter "F," and any qualifications to the product hourly rating are cast or stamped on the exposed surface if the entire Certification Mark is not visible after installation of the product.

Alternate UL Mark

The Listing Mark of UL on the product is the only method provided by UL to identify products manufactured under its Listing and Follow-Up Service. The Listing Mark for these products includes the UL symbol (as illustrated in the Introduction of this Directory) together with the word "LISTED," a control number, and the product name "Self-Latching Flush or Surface Bolt." In addition, the UL symbol, the letter "F," and any qualifications to the product hourly rating are cast or stamped on the exposed surface if the whole Listing Mark is not visible after installation of the product.

UL had previously authorized the use of the letter "f" to denote products that comply with the positive-pressure-test requirements from those that complied only with the neutral-pressure test in ANSI/UL 10B. All products in this category now comply with the positive-pressure requirements of ANSI/UL 10C. The use of the small letter "f" is no longer required for products in this category. Some manufacturers re-tooled their dies and may be marking their products with both an uppercase "F" and lowercase "f."

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Last Updated on 2013-05-16
GXVV.GuideInfo GXVV Active 20130516 20121009

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