1、_ _ - - - - A-A-50545 = 9499974 OL557L9 477 I INCH-POUND I A-A-50545 SeDtember 30. 1993 SUPERSEDING MIL-R-I7772C(YD) 17 December 1982 COMMERCIAL ITEM DESCRIPTION RADIATOR, HEATING, BASEBOARD PANEL, STEAM AND HOT WATER This Commercial Item Description (CID) is approved by the Commissioner, Federal Su
2、pply Service, General Services Administration, for the use of al1 Federal agencies. 1. Abstract. radiation and convection heating type for use on hot water or two-pipe steam system. barracks, warehouses, dining halls, and residential and office buildings. Assembly sizes (lengths) are as follows: Thi
3、s CID covers baseboard panel radiators of the combined These baseboard heating radiators are intended for the heating of Size 1 Size 1-1/2 Size 2 Size 2-1/2 Size 3 Size 3-1/2 Size 4 Size 4-1/2 Size 5 Size 5-1/2 Size 6 As s emb ly II II II Il II II II Il Il II length II II Il II II II Il It II Il 1 f
4、oot (0.30 meter (m) 1-1/2 feet (0.46 m) 2 feet (0.61 m) 2-1/2 feet (0.76 m) 3 feet (0.91 m) 3-1/2 feet (1.07 m) 4 feet (1.22 m) 4-1/2 feet (1.37 m) 5 feet (1.52 m) 5-1/2 feet (1.68 m) 6 feet (1.83 m) 2. Salient characteristics. 2.1. The baseboard panel radiator shall be an assembly of cast-iron or n
5、onferrous finned tube heating element with die-formed sheet metal enclosures. The radiator shall be for use with hot water or steam, as specified (see 6.1), and shall be designed for installation along the base of walls or for replacing conventional baseboard molding. The length of each assembly sha
6、ll be JBeneficial comments (recommendations, additions, deletions) and any pertinent1 Idata which may be of use in improving this document should be addressed to: I ICommanding Officer (Code 156), Naval Construction Battalion Center, (1000 23rd Avenue. Port Hueneme. CA 93043-4301. DescriDtion. I I F
7、SC 4520 DISTRIBUTION STATEMENT A. Approved for public release; distribution is a Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-A-A-50545 m 9999974 0355720 199 m A-A-50545 specified (see 6.1). The radiator shall include necessary component parts, in
8、cluding panel accessories, for a complete installation. Suitable fasteners shall be provided by the installing contractor. 2.2 Standard compliance. All radiators shall meet the requirements of the IBR Testing and Rating Code for Baseboard Type Radiation of The Hydronics Institute. 2.3 Desim. The rad
9、iators will be designed to withstand, without deformation, leakage or damage, a minimum pneumatic pressure of 45 pounds per square inch gage (psig) (310.26 kilopascals (kPa) (gage), or a minimum hydrostatic pressure of 60 psig (413.68 kPa (gage). 2.4 Capacitv ratinq. specified (see 6.1). The ratings
10、 shall be an approved IBR rating. The heat emission steam or hot water capacity shall be as 2.5 Construction. The radiator shall be of the combined radiant and convector type with suitable openings at top and bottom of the assembly. enclosure cover shall be provided for access to vents, valves, and
11、pipe connections. The back of the cast-iron section shall have finned surfaces cast integrally with the steam or hot water distribution section. Sections shall be in such lengths as to provide for radiator assemblies in linear multiples of 1 foot (0.30 m), the shortest length to be not less than 2 f
12、eet (0.61 m). The overall height of each assembly shall not exceed 12 inches (304.80 millimeters (mm), and depth shall not exceed 4 inches (101.60 mm). A removable 2.6 DamDers. When specified (see 6.1), full-length dampers formed from sheet steel for nonferrous type baseboard, with provisions for ad
13、justment in any position between fully opened and closed, shall be provided, Dampers over 5 feet (1.52 m) long shall be in multiple sections. When dampers provided are an integral component of the units enclosure, the dampers shall be constructed of not less than 20 gage steel. the dampers shall be
14、constructed of not less than 20 gage steel. When dampers provided are within the enclosure, 2.7 Connections, Push nipples connecting the cast-iron sections shall be not less than 0.750-inch (19.05 nun) in diameter and connections shall be at both the top and bottom of the sections. The assembled sec
15、tions shall be secured with tie bolts. Nonferrous heating elements shall have tubing sized for standard sweat solder type copper fittings for field joining. 2.8 TaminEs. - The end of Cast-iron sections shall have 0.750-inch (19.05 mm) tappings directly opposite the bottom nipple ports for supply and
16、 return connections. Air vent tappings at top of each end section shall be 0.125-inch (3.18 mm). 2.9 Resistance to water flow. The pressure drop per foot of cast-iron heating elements, exclusive of entrance and exit losses, shall not exceed that of a 0.750-inch (19.05 mm) pipe 7.5 inches (190.50 mm)
17、 long. The pressure drop of a nonferrous type heating element shall be as shown in the IBR rating data. 2.10 Commercial manual. When specified (see 6.1), a commercial off-the-shelf manual with parts list shall be provided for each baseboard heating radiator, 2 Provided by IHSNot for ResaleNo reprodu
18、ction or networking permitted without license from IHS-,-,- - ._ _ - - -_I_ A-A-50545 9999974 0155721 025 = A-A- 50545 3. Ree(u1atorY resuirements. The offerer/contractor is encouraged to use recovered materials in accordance with Public Law 94-580 to the maximum extent practical. 4. Oualitv assuran
19、ce. 4.1. Contractor certification. The contractor shall certify and maintain substantiating evidence that the product offered meets the salient characteristics of this CID and that the product conforms to the producers own drawings, specifications, standards, and quality assurance practices. The Gov
20、ernment reserves the right to require proof of such conformance prior to first delivery and thereafter as may be otherwise provided for under the provisions of the contract. 4.2. Metric products. Products manufactured to metric dimensions will be considered on an equal basis with those manufactured
21、using inch-pound units, provided they fall within specified tolerances using conversion tables contained in the latest revision of FED-STD-376, and all other requirements of this document are met. dimensions exceed the tolerances specified in the inch-pound units, a request should be made to the spe
22、cification preparing activity for changes to this document. If a product is manufactured to metric dimensions and those 5. Packanina. - the preservation, packing, and marking shall be in accordance with ASTM D 3951. Unless otherwise specified in the contract or order (see 6.1), 6. Motes. O 6.1 Order
23、ing data. Acquisition documents should specify the fol-lowing: a. Title, number, and date of this CID. b. c. Steam or hot water capacity (see 2.4). d. When damper shall be provided (see 2.6). e. f. Whether radiators will be used with hot water or steam and assembly length required (see 1 and 2.1). W
24、hen commercial manual shall be provided (see 2.10). When packaging and marking are to be other than as specified (see 5). 6.2 Document sources. FED-STD-376 is available from Standardization Documents Order Desk, Bldg. 4D, 700 Robbins Avenue, Philadelphia, PA 19111-5094. ASTM D 3951 is available from
25、 ASTM, 1916 Race Street, Philadelphia, PA 19103-1187. IBR Standard, “IBR Ratings for Baseboard Radiation and Finned Tube (Commercial) Radiation,“ is available from the Hydronics Institute (IBR), P.O. Box 218, 35 Russo Place, Berkeley Heights, NJ 07922. 3 Provided by IHSNot for ResaleNo reproduction
26、or networking permitted without license from IHS-,-,-_ A-A-50545 9999974 0355722 Tb3 W A-A- 50545 6.3 CID-based Dart identification numbers. The following part identification numbering procedure is for Government purposes and does not constitute a requirement for the contractor. A-XXXXX-X-X-X I I II
27、I Assembly length (size) Damper option Material and heating medium I I II I I II I I I I I I I I I I CID number Designates a CID I I 6.3.1 Material and heating medium. The material of construction and the heating medium of the baseboard radiator assemblies are identified by a single number (see Tabl
28、e I), TABLE I. Code number to material and heat medium. Material of construction Heating medium Cast iron Sheet metal enclosure-fin tube Steam Hot water 1 3 2 4 6.3.2 DamDer. The damper option of the baseboard radiator assemblies is identified as follows: With damper - 1 Without damper - O 6.3.3 Ass
29、emblv length (size). The length (size) of various baseboard assemblies is identified by a single alphabetic character (see table 11). TABLE II. Code number to lennth - (size) Size Length Code 1 1 foot (0.30 m) A 1 - 1/2 1-1/2 feet (0.46 m) B 2 2 feet (0.61 m) C 2 - 1/2 2-1/2 feet (0.76 m) D 3 3 feet
30、 (0.91 m) E 3 - 1/2 3-1/2 feet (1.07 m) F 4 4 feet (1.22 m) G 4- 1/2 4-1/2 feet (1.37 m) H 5 5 feet (1.52 m) J 5 - 1/2 5-1/2 feet (1.68 m) K 6 6 feet (1.83 m) L 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-I_ _ - A-A-50545 9999974 0355323 9T W A-A-50545 MILITARY INTERESTS: Custodians Navy - YDl Air Force - 99 Review Activities CIVIL AGENCY COORDINATING ACTIVITY: GSA - FSS PREPARING ACTIVITY: Navy - YD1 (Project 4520-0342) Army - CE DU - CS 5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
