1、Comments, suggestions, or questions on this document should be addressed to: Commander, Naval Sea Systems Command, ATTN: SEA 05S, 1333 Isaac Hull Avenue, SE, Stop 5160, Washington Navy Yard DC 20376-5160 or emailed to CommandStandardsnavy.mil, with the subject line “Document Comment”. Since contact
2、information can change, you may want to verify the currency of this address information using the ASSIST Online database at https:/assist.dla.mil. AMSC N/A FSC 2040 INCH-POUND MIL-PRF-32478 22 October 2013 PERFORMANCE SPECIFICATION FIRE ZONE DOOR, SHIPBOARD USE This specification is approved for use
3、 by all Departments and Agencies of the Department of Defense. 1. SCOPE 1.1 Scope. This specification covers fire zone doors for use in internal shipboard fire zone boundaries where ingress and egress are required in interior, non-structural bulkheads. The door assembly includes the panel (door), fr
4、ame, hinges, latch or lock assembly, light assembly, insulating material (if any), structural supports, sealing assembly, and all related mounting hardware. 1.2 Classification. Fire zone doors are of the following configurations (operation) and styles. 1.2.1 Configuration (operation). Door-swing (i.
5、e., left-hand or right-hand) designations are opposite that of standard commercial practice. Door-swing determination is made by standing on the side of the door opening in which the panel swings towards an individual from the closed position; if the door hinges are located on the left side, it is c
6、onsidered a left-hand door; if the door hinges are on the right side, it is considered a right-hand door. Fire zone doors are of the following configurations as classified by operator orientation: a. Operation I Left-hand operation. b. Operation II Right-hand operation. 1.2.2 Styles. Fire zone doors
7、 are of the following styles: a. Style 1 With latch assembly. b. Style 2 With latch assembly and fixed light assembly. c. Style 3 With lock assembly. d. Style 4 With lock assembly and fixed light assembly. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-
8、,-,-MIL-PRF-32478 2 1.3 Part or identifying number (PIN). PINs to be used for fire zone doors acquired to this specification are created (see 6.2) as follows: M 32478 - X X X Prefix for Military Specification Specification Number Dimension A CO 26“ 66“ B CO 26“ 69“ C CO 30“ 66“ D CO 30“ 69“ (see 3.4
9、) Configuration (Operation) 1 Left-hand 2 Right-hand (see 1.2.1) Style A Latch B Latch assembly footprint 34 73; Left-hand operation; latch assembly and fixed light M32478-A2C CO 26W 66H; assembly footprint 30 70; Right-hand operation; lock assembly only M32478-C1D CO 30W 66H; assembly footprint 34
10、70; Left-hand operation; lock assembly and fixed light 2. APPLICABLE DOCUMENTS 2.1 General. The documents listed in this section are specified in sections 3, 4, or 5 of this specification. This section does not include documents cited in other sections of this specification or recommended for additi
11、onal information or as examples. While every effort has been made to ensure the completeness of this list, document users are cautioned that they must meet all specified requirements of documents cited in sections 3, 4, or 5 of this specification, whether or not they are listed. 2.2 Government docum
12、ents. 2.2.1 Specifications, standards, and handbooks. The following specifications, standards, and handbooks form a part of this document to the extent specified herein. Unless otherwise specified, the issues of these documents are those cited in the solicitation or contract. DEPARTMENT OF DEFENSE S
13、PECIFICATIONS MIL-S-901 - Shock Tests, H.I. (High-Impact) Shipboard Machinery, Equipment, and Systems, Requirements for MIL-DTL-15024 - Plates, Tags, and Bands for Identification of Equipment, General Specification for DEPARTMENT OF DEFENSE STANDARDS MIL-STD-167-1 - Mechanical Vibrations of Shipboar
14、d Equipment (Type I-Environmental and Type II-Internally Excited) MIL-STD-3020 - Fire Resistance of U.S. Naval Surface Ships (Copies of these documents are available online at http:/quicksearch.dla.mil/ or https:/assist.dla.mil.) Provided by IHSNot for ResaleNo reproduction or networking permitted w
15、ithout license from IHS-,-,-MIL-PRF-32478 3 2.2.2 Other Government documents, drawings, and publications. The following other Government documents, drawings, and publications form a part of this document to the extent specified herein. Unless otherwise specified, the issues of these documents are th
16、ose cited in the solicitation or contract. NAVAL SEA SYSTEMS COMMAND (NAVSEA) INSTRUCTIONS NAVSEAINST 9491.1 - Location of Approved Class HI Shock Testing Facilities (Copies of this document are available online at www.navsea.navy.mil.) NAVAL SEA SYSTEMS COMMAND (NAVSEA) DESIGN DATA SHEETS DDS 078-1
17、 - Composite Materials, Surface Ships, Topside Structural and Other Topside Applications Fire Performance Requirements (Copies of this document are available from Commander, Naval Sea Systems Command, ATTN: SEA05S, 1333 Isaac Hull Avenue, SE, Stop 5160, Washington Navy Yard DC 20376-5160, or by emai
18、l at CommandStandardsnavy.mil with the subject line “DDS request”.) 2.3 Non-Government publications. The following documents form a part of this document to the extent specified herein. Unless otherwise specified, the issues of these documents are those cited in the solicitation or contract. AMERICA
19、N NATIONAL STANDARDS INSTITUTE (ANSI) ANSI A156.2 - Bored and Preassembled Locks and Latches ANSI A156.4 - Door Controls Closers (Copies of these documents are available from the American National Standards Institute, 25 W. 43rd St, 4th Floor, New York, NY 10036 or online at http:/webstore.ansi.org/
20、.) ASTM INTERNATIONAL ASTM E84 - Standard Test Method for Surface Burning Characteristics of Building Materials ASTM E662 - Standard Test Method for Specific Optical Density of Smoke Generated by Solid Materials ASTM E800 - Standard Guide for Measurement of Gases Present or Generated During Fires (C
21、opies of these documents are available from ASTM International, 100 Barr Harbor Dr., P.O. Box C700, West Conshohocken, PA 19428-2959 or online at www.astm.org.) 2.4 Order of precedence. Unless otherwise noted herein or in the contract, in the event of a conflict between the text of this document and
22、 the references cited herein, the text of this document takes precedence. Nothing in this document, however, supersedes applicable laws and regulations unless a specific exemption has been obtained. 3. REQUIREMENTS 3.1 First article. When specified (see 6.2), a sample shall be subjected to first art
23、icle inspection in accordance with 4.2. 3.2 Materials. Material selected shall meet the requirements specified herein. Materials specified herein are recommended, not mandatory. The use of carcinogenic materials is prohibited. 3.3 Recycled, recovered, environmentally preferable, or biobased material
24、s. Recycled, recovered, environmentally preferable, or biobased materials should be used to the maximum extent possible, provided that the material meets or exceeds the operational and maintenance requirements, and promotes economically advantageous life cycle costs. Provided by IHSNot for ResaleNo
25、reproduction or networking permitted without license from IHS-,-,-MIL-PRF-32478 4 3.3.1 U.S. Environmental Protection Agency. The use of these materials on the list should be minimized or eliminated unless needed to meet the requirements specified herein. The list of chemicals and additional informa
26、tion is available on their website: http:/www.epa.gov/osw/hazard/wastemin/priority.htm. 3.4 Design. The door assembly shall be a swing type, flush-mounted, radius cornered panel that is manually operated. Door assemblies shall be constructed in the types and sizes listed in table I. The dimensions s
27、hown in table I are the required clear openings of the door and the maximum footprint of the entire door assembly. Components of the door assembly shall be contained within the footprint of the door frame. Specific configurations and styles are identified in 1.2.1 and 1.2.2. The door frame shall be
28、of the bolt-mounted variety. Door frames shall be provided with no mounting holes drilled to accommodate retrofitting door assemblies onto legacy ships. Corners of 8716-inch radius shall be incorporated into the door panel. Doors sizes that are not specified in table I and are required for back-fit
29、shall meet all requirements stated herein. TABLE I. Fire zone door sizes and footprints. Type Clear opening width (inches) Clear opening height (inches) Door assembly footprint (W) (inches) Door assembly footprint (H) (inches) 1 26 66 30 70 2 26 69 30 73 3 30 66 34 70 4 30 69 34 73 3.4.1 Latch or lo
30、ck assemblies. Latch or lock assemblies shall be provided in accordance with ANSI A156.2. Both the latch and lock assembly shall include a commercial standard size doorknob on both sides of the panel. 3.4.2 Automatic closing devices. Door assemblies shall be supplied with an automatic closing device
31、 (closer) in accordance with ANSI A156.4. The closer shall provide a force to close and latch the door automatically after the door panel has been pulled or pushed open. The closer shall include a dampening mechanism with a two-stage closing speed arrangement to prevent the door from slamming. The c
32、loser shall be provided with four adjustable controls; back-check, sweep, latch, and spring force. The back-check feature acts as a dampening device to prevent uncontrolled opening of the door panel, reducing the possibility of slamming the panel against the door bumper, bulkhead, or another piece o
33、f equipment. The closing speed is to be controlled by the sweep and the latch mechanisms. Routine adjustments to the closer shall be capable without requiring the closer to be removed from the door assembly. 3.4.3 Light assembly. When specified (see 6.2), the door assembly shall be provided with a c
34、lear glass light assembly with the following characteristics: a. Minimum viewing area of the glass shall be 12.56 square inches. b. The light assembly design shall allow for easy replacement of the light. c. The center of the light assembly shall be located vertically 55 inches above the bottom of t
35、he door panel and horizontally centered on the door panel. 3.4.4 Sealing mechanism. The door assembly shall be supplied with a means of sealing the door panel/frame interface with the door panel in the closed position. The fire zone door assembly shall not allow for passage of flame, air, or smoke w
36、ith the door panel in the closed and latched position. The sealing mechanism shall be adjustable 0.5 inch (normal to the clear opening) to accommodate variations in local bulkheads. If an intumescent material is used to provide sealing performance when subjected to high temperature fire, that materi
37、al shall be in a recess or channel to prevent damage caused by hard objects being carried through the door by shipboard personnel. 3.4.5 Special tools. Fire zone doors shall be designed so that special tools are not required for installation and maintenance. Special tools are defined as those tools
38、not listed in the Federal Supply Catalog. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-32478 5 3.5 Physical requirements. 3.5.1 Edges. Exposed burrs and raw or sharp edges on doors and frames which might be injurious to personnel shall be
39、removed. 3.5.2 Finish. The finish (including color) of the fire zone door panels and frames shall be as specified in the contract or order (see 6.2). 3.5.3 Identification plate. Each fire zone door assembly shall be supplied with an identification plate affixed to the door panel by double-back tape.
40、 The identification plate shall be 3 inches high by 5 inches wide. The identification plate shall be in accordance with the requirements of MIL-DTL-15024, Type H. Lettering shall be 532 inch high. Spacing between text lines shall be 716 inch. Double-back tape shall cover the entire face of the ident
41、ification plate. Each identification plate shall list the following information: a. Specification number. b. Part or identifying number (PIN). c. Manufacturer name. d. Date manufactured. 3.6 Performance requirements. 3.6.1 Endurance. The fire zone door assembly, with the lock or latch assembly remov
42、ed, shall be capable of withstanding a minimum of 1,000,000 closed-to-open-to-closed cycles with the automatic closing device set at its highest resistance level and with no adjustments allowed. 3.6.2 Closure speed. The sweep shall control the initial 70 to 75 degrees of the doors closing and shall
43、be adjusted to reach this location within 3 seconds. The latch shall control the final 15 to 20 degrees of the door panels closing and latching. The panel shall reach the closed and latched position in 1 to 2 seconds once the latch control engages. The transition from fully open to the closed and la
44、tched position shall be smooth with no perceivable bounce at the point of speed change. 3.6.3 Force to open. The force perpendicular to the door panel required to open the door shall not exceed 17 pounds. 3.6.4 Closure force. The closer shall not prevent the door from traveling from fully closed to
45、open (90 degrees) within 2 seconds. The closer shall provide a force sufficient to close and latch the fire zone door when the door assembly is positioned to a list angle of 3.5 degrees opposing the closer direction within 5 to 7 seconds. 3.6.5 Shock resistance. The entire fire zone door assembly sh
46、all be capable of withstanding Grade A shock in accordance with MIL-S-901, medium weight shock test, Class I, hull mounted, front or face mounting plane requirements. 3.6.6 Vibration resistance. The entire fire zone door assembly shall be capable of withstanding shipboard vibration in accordance wit
47、h MIL-STD-167-1, Type I vibration. 3.6.7 Moisture and water resistance. Neither the door material nor the insulating material (if any) will degrade when exposed to water or moisture. The materials will continue to be able to provide the same level of fire protection after exposure to water or moistu
48、re. Absorbent materials which encourage the growth of mold shall not be used. 3.6.8 Fire resistance. When tested in accordance with 4.6.6.2, the entire fire zone door assembly shall be capable of preventing passage of hot gases, smoke, and flames on the unexposed surface for 30 minutes. The fire res
49、istance performance rating for a fire zone door is N-30, as defined in MIL-STD-3020. The door shall be capable of preventing an average unexposed surface temperature rise of 250 F (139 C) and the temperature rise at any point on the unexposed surface not exceeding 325 F (181 C) above the initial temperature for the 30 minute test period. The specimen is considered to have satisfied the criteria of t
