DLA A-A-59248-1998 METER VOLUMETRIC POSITIVE DISPLACEMENT LIQUID FUEL 600 GPM《600加仑每分正排量式液体燃料用容量表》.pdf
《DLA A-A-59248-1998 METER VOLUMETRIC POSITIVE DISPLACEMENT LIQUID FUEL 600 GPM《600加仑每分正排量式液体燃料用容量表》.pdf》由会员分享,可在线阅读,更多相关《DLA A-A-59248-1998 METER VOLUMETRIC POSITIVE DISPLACEMENT LIQUID FUEL 600 GPM《600加仑每分正排量式液体燃料用容量表》.pdf(6页珍藏版)》请在麦多课文档分享上搜索。
1、INCH-POUNDA-A-59248June 16, 1998SUPERSEDINGGG-M-2742June 26, 1991COMMERCIAL ITEM DESCRIPTIONMETER, VOLUMETRIC, POSITIVE DISPLACEMENT, LIQUID, FUEL, 600 GPMThe General Services Administration has authorized the use of this commercialit em description for all Federal agencies.1. SCOPE. This commercial
2、 item description (CID) covers 600 gallon per minute (gpm)(2 271 litre per minute (L/m) diesel fuel, automotive gasoline, jet fuel and aviation gasolinevolumetric, positive displacement meters.2. SALIENT CHARACTERISTICS.2.1 Description . The positive displacement meter, herein after referred to as m
3、eter, shall be usedto meter fuel pumped into tanker trucks. The meter shall be capable of handling fuels at a flowrate of 600 gpm (2 271 L/m). The meter shall have a digital readout register that indicates thegallonage throughput. The fuels most generally metered shall be diesel fuel and automotiveg
4、asoline, however, under some circumstances it shall be used for metering of jet fuel and aviationgasoline. All fuels shall pass through a strainer prior to reaching the meter.2.2 Standard commercial product . The meter shall, as a minimum, be in accordance with therequirements of this CID and shall
5、be the manufacturers standard commercial product.Additional or better features which are not specifically prohibited by this CID, but which are apart of the manufacturers standard commercial product, shall be included in the meter beingfurnished. A standard commercial product is a product which is b
6、eing sold or is being currentlyoffered for sale on the commercial market through advertisements or manufacturers catalogs orbrochures, and represents the latest production model.Beneficial comments, recommendations, additions, deletions, clarifications, etc. and any datawhich may improve this docume
7、nt should be sent to: Officer in Charge (Code 15E2), SeabeeLogistics Center, 4111 San Pedro St., Port Hueneme, CA 93043-4410, by using theStandardization Document Improvement Proposal (DD Form 1426) appearing at the end of thisdocument or by letter.AMSC N/A FSC 6680Provided by IHSNot for ResaleNo re
8、production or networking permitted without license from IHS-,-,-A-A-5924822.3 Performance .2.3.1 Static pressure. The meter shall be capable of operating at a working pressure of275 pounds force per square inch (psi) (1 896 kilopascal (kPa).2.3.2 Flow pressure drop. The maximum pressure drop between
9、 inlet and outlet shall be notgreater than 5 psi (34.5 kPa) when operating at rated capacity.2.3.4 Meter error. The meter repeatability error shall be not greater than 0.1 percent for any onepredetermined flow rate and accuracy setting.2.3.5 Overload protection. The meter shall be capable of 125 per
10、cent of maximum rated capacitywithout damage to the mechanism.2.4 Environmental conditions . Unless otherwise specified (see 6.2), the meter shall be capable ofmeeting all performance requirements specified herein at ambient temperatures ranging from- 20 to 126 F (- 29 to 52 C). The maximum pressure
11、 drop at - 65 F (- 54 C) shall be notgreater than 4 psi (27.6 kPa). The meter shall meet all performance requirements under highhumidity, salt fog, sand and dust conditions.2.5 Design and construction .2.5.1 Interchangeability. All units of the same classification furnished with similar options unde
12、ra specific contract shall be identical to the extent necessary to ensure interchangeability ofcomponent parts, assemblies, accessories, and spare parts.2.5.2 Adjustment mechanism. The meter shall be equipped with an accuracy adjustmentmechanism that will operate without change during the life of th
13、e meter, except by manualadjustment. The accuracy adjustment mechanism shall be so designed as to be direct-reading andpermit ready adjustment without disassembly of the mechanism. The accuracy adjustment shallhave a range of not less than 5 percent.2.5.3 Inlet and outlet. Unless otherwise specified
14、 (see 6.2), the meter shall be designed forstraight-through flow. Unless otherwise specified (see 6.2), the meter shall be provided with4-inch 300 class raised face flanges in accordance with ANSI B16.24, and as specified herein.2.5.4 Meter register. The meter register shall be capable of recording
15、a volume of 99,999,999gallons (378 499 996 L) of fuel, and shall have a 8-digit totalizer unit. The meter register drivemechanism shall have a positive counter drive with no friction devices or a adjustable drivingmechanism capable of transmitting without slippage, a torque not less than 4 ounce-inc
16、hes (oz-in)(0.028 Newton metre (N m).2.5.5 Strainer. When specified (see 6.2), each meter shall be protected from pipe scale or foreignobjects by a strainer placed in the inlet piping to the meter.Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-A-A-5
17、924832.5.6 Indexing. Unless otherwise specified (see 6.2), the registers shall be of a type that can beindexed throughout a full revolution in increments of 30 degrees or less, to permit positioning ofthe register in any direction with relation to the meter housing. The meter register face shall hav
18、ea transparent, colorless face of sufficient size to provide a full view of all digits.2.5.7 Torque limitation. The breakaway torque required to rotate the input shaft of the registershall be not greater than 4 oz-in (0.028 N m) at - 65 F (- 54 C).2.6 Workmanship . All operations and processes invol
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