1、MIL-W-O052027C(MO) 16 DECEMBER 1963 USED IN LIEUOF 13 JULY 1962 MILW-52027B MILITARY SPECIFICATION WATER PURIFICATION UNIT, BASE-MOUNTED, ELECTRIC-MOTOR-DRIVEN, ERDLATOR-TYPE CLARIFIER, DIATOMITE-TYPE FILTERS, 3,000 GPH This limited coordination Military Specification has been prepared by the Mobili
2、tg Command (ERDL) based. itpon czcrrently available technical information, but it has not been approved for promulgation as a coordinated revision of Nilitary Speci- fication MIL-W-5227B. It is subject to modification. However, pending its promulgation as a coordinated Military specification, it may
3、 be used in procurement. 1. SCOPE 1.1 This specification covers a base- mounted, electric-motor-driven, water purifi- cation unit capable of producing potable water at a rate of 3,000 gph. 2. APPLICABLE DOCUMENTS 2.1 The following documents of the issue in effect on date of invitation for bids or re
4、- quest for proposal form a part of this spec- ification to the extent specified herein : SPECIFICATIONS FEDERAL QQ-S-781 TT-P-664 -Steel Strapping, Flat -Primer, Coating, Syn- thetic, Rust-lnhibit- ing, Lacquer-Resist- ing -Tags, Shipping and Stock -Cloth, Cotton, Duck, Unbleached, Plied- Yarns, Ar
5、my and Numbered -Boxes, Wood, Cleated- PlWOOC! PPP-T3-621 PPP-C-843 P PP-T-60 MILITARY MIL-C-104 MIGP-116 MIL-B-121 MIGV-173 UU-T-8 1 ccc-(7-419 MIL-P-514 PPP-B-601 -Boxes, Wood, Nailed and Lock-Corner -Cushioning Material, Cellulosic -Tape; Pressure Sensi- tive Adhesive, Waterproof - for Packaging
6、and Seal- ing -Crates, Wood ; Lum- ber and Pllwood Sheathed, Nailed and Bolted -Preservation, Methods of -Barrier . Material, Greaseproof ed, Ma- terproofed, Flexible -Varnish, Moisture-and -Fungus - Resistant (or the Treatment of Communications, Electronic, and As- sociated Electrical Equipment -Pl
7、ates ; Identification, Transportation - Da- Capacity) I FSC 4610 1 fl Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-W-0052027C 4b 7777706 0237743 7 MILW4052027C(MO) MILL-2105 -Lubricating Oil, Gear, Multipurpose MIL-G-3278 -Gre2se, Aircraft and
8、 Instrument (for Low and High Temperatures) NIL-C-3859 -Grease Guns, Hand, High-pressure, Le- ver-Operated (15- Ounce and 21-Ounce Capacity MILG-7118 Grease ; Aircraft Gear and Act-uator Screw, for Low and High Temperatures MIGP-10603 -Pumps and Pumping Units, Centrifugal, Power-Driven, for Water, P
9、ackaging of MIGG-10924 -Grease, Automotive and Artillery MILI-11748 -Interference Reduc- tion for Electrical and Electronic Equipment MIL-P-15024 -Plates, Identification - Information and Marking for Identi- fication of Electri- cal, Electronic and Mechanical Equip- ment NIGP-15145 -Paint, Zinc Dust
10、 Pig- mented, Fresh Wa- ter Tank Protective, Formula No. 102 MIGH-15424 -Hand Tools ; Packag- ing of MIL-P-16298 -Preservation, Packag- ing, Packing, and Marking of Electric Machines Having Rotating Parts and Associated Repair Parts.- MiL-L-21260 -LubricatinpOil, Inter- nal-Combustion En- gine, Pres
11、ervative - 2 STANDARDS FEDERAL FED. STD. No. 601 -Rubber: Sam- pling and Test- ing MILITARY MIGSTD-105 -Sampling Procedures and Tables for In- spection by Attri- butes MIL-STD-129 -Marking for Shipment and Storage MIGSTD-130 -1dentfication Marking of U. S. Military Property MS15003 -Fittings, Lubric
12、ation (Hydraulic) Sur- face Check, 1/8 Pipe Threads, Steel, Type III MS24207 -Coupling, Grease Gun MS35307 -Screw, Cap, Hexagon Head (Finished Hexagon Bolt), Cor- rosion Resisting Steel, Passivated Finish, UNC-2A BIS35842 -Clamp, Hose; Low Pressure MS36844 -Plug, M a c h i n e , Thread ; Magnetic, (
13、Drain) DRAWINGS MO (ERDL) DL13212E6880-Uater Purification Unit, Base Mount- ed, Erdlator Type, 3000 GPH (Copies of specifications, standards, and drawings required by suppliers in connection with specific pro- curement functions should be obtained from the pro- curing activity or as directed by the
14、contracting officer.) 2.2 Other publications. The folloving docu- ments form a part of this specification to the extent specified herein. Unless otlier- wise indicated, the issue in effect on date of invitation for bids or request for pro- posal shall apply. HYDRAULIC INSTITUTE Standards of the Hydr
15、aulic Institute .: . -. LJ$ .i: I :.“i- CIIS C?IC! Ihe CUS 1i!l fil! dii.i:z Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-. MIL-W-0052027C 46 7777706 02L774b 2 m orifice. The weir shall allow excess slurry to return to the tank. The cups shall mai
16、ntain a constant head over the orifice during the entire discharge period over the collecting funnel. 3.6.1.5 Collecting funnel. The collecting funnel shall prevent any slurry that flows into the funnel from the measuring cups from splashing out or overflowing from the funnel. The funnel shall he pr
17、ovided with a 1-inch NPT internally threaded connec- tion provided with corrosion-resisting helical inserts. 3.6.1.6 Rate-of-discharge controller. The rate of discharge from each compartment shall be controlled individually by the ad- justment of a shield over the collecting fun- nel. The shield sha
18、ll be linked to a lever out- side the tank, and the lever shall move over a scale marked to indicate the percentage of the collection funnel left uncovered by the shield. The percentage of maximum flow be- ing discharged is equal to the percentage of the collection funnel opening left uncov- ered by
19、 the shield. The opening shall be manually adjustble from zero to 100 per- cent. The scale shall be marked from zero to 100 percent in increments of 10 percent. The maximum rate of discharge through the oiitlet shall be 210 ml/min. The rate of dis- charge through the outlet shall be within plus or m
20、inus 5 percent of the scale setting and shall not be affected by the speed at which the cups rotate. 3.6.1.7- Sa.fety clutch. The safety clutch slid1 operate on friction so as to slip at a torque of 26 ft-lbs. 3.6.1.8 Filling connections. The filling con- nections shall be 1-inch NPT internally thre
21、aded connections, shall be located on the ends of i!? tank, and shall be above the high-level mark of each compartment. 3.6.2 Solution fceder assembly. The solu- tion feeder assembly shall consist of two dinphixgin pumps operated from one elec- tric irioto by means of a gear-rplnction mechanism, rec
22、iprocating mechanisms, and priming levers. Each pump shall have its MIGW-0052027C (MO) own reciprocating mechanism and priming lever and shall operate independently of the other, The gear-reduction mechanism shall reduce the speed of the motor so that the reciprocating mechanisms operate the pumps a
23、t approximately 12 strokes per minute. The gear-reduction mechanism and motor shall be contained in a cast iron or cast aluminum housing and shall operate in an oil bath. The top of the housing shall contain no de- pressions that will collect any solution spilled on the feeder. The pumps shall be mo
24、unted outside and on top of the housing, The prim- ing lever and the connection between the priming lever and reciprocating mechanism shall permit the stroke length of the pump to be adjustable to provide infinite variation of feed rate from 1/2 gph to 21/(2 gph without stopping the pump. Each primi
25、ng lever shall be equipped with a scale for use with a calibration curve (see 3.6.3). The scale shall be readable at any angle from 30 to 90 de- grees to the horizontal and at a distance of 18 inches when the feeder is viewed with pumps to right of viewer. The rate of dis- charge shall be within plu
26、s or minus 5 per- cent of indicated rate at any scale setting. The solution feeder assembly shall be pro- vided with a 125-volt, 15-ampere, 3-pole, 3-wire midget locking-type male receptacle. The feeder shall be suitable for mounting on a flat, horizontal base with the mounting bolts inserted from t
27、he top. 3.6.2.1 Pzcmps. Each pump shall have a pumping head of molded hard rubber and a diaphragm of rubber-coated cloth riiolded to a shape that will insure freedom from strain. The suction and discharge vaires shall be of the Fopp di- reciim not less than 50 percent of the time required for one co
28、mplete pumping cycle. The Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- - .r MIL-U-0052027C Lib m 7939706 0237747 4 m MfL-W-OQ52027C (MO) pump heads and diaphragms shall operate against a maximum pressure of 5 psi and a suctisi lift of approxinate
29、ly 6 feet of viater. All parts of the pumps that ure in contnct with clieniical solution shaf! iiot be adversely affected by a 35-percent solution of ferric chloride. 3.G.2.2 Sts.aine?*. The strainer shd1 consist of a polyvinyl chloride franio covered with polyviiiyl chloride screening a:d shzll per
30、- mit flow of the solution to the ieeder when the liquid level in the so!atio:i tmk is inches roin the bottom of the taiil. The con- tzct ;:rez for attaching the screening to the frame shall be not less tliaii .?.i2 iich mide. Screening shall have 1024 openings per square inch. Tlie strainer slia11
31、have a total efiective open area of not less than 0.5 square inch. 3.6.3 Calibration charts, Calibration charts covering the full range of feed rates for a flow of 50 gpin shall be furnished for each feeder. Each chart shall be Rot less than 6 by 6 inches nor more than 8 by 8inclies. The charts shal
32、l be attached to the front of the electrical control cabinet. The abscissa s1i:tll have two scales: one in ppm and one in inil/inin. The ordinate shall be in feeder scale readings. Each chai-t shall be identified as to respective feeder, slurry, and solution concentration, and each curve as to respe
33、c- tive flow rate. Curves shall be based on the solution and slurry concentrations specified in table I. TABLE I. Solution and slurry concentrations Pounds of cheinicol Chemical per gsllon of waier Ferric cliloridc 1 Calcium 1iypo:iilorite. 1 /4 Liinestone . 1 M:itomsccniis si!icn. Carbon. 1/10 . -
34、1Thc curve for carlm shall be on the same chart as for limcs of 4.5.11.4. Short shut-down periods for inspection, lu- brication, or functional changes will be per- mitted provided normal operation is resumed within 5 minutes. Upon completion of the last backwashing, shut down and examine the unit. R
35、emove the pumping heads of the solution feeder and examine for damage. Remove the filter dome and examine the elements for damage. 4.5.11.6 Criteria for failure. Evidence of any one of the following conditions shall constitute failure of this test: (a) Leaks at any welded seam or any connection. (b)
36、 Discharge rate of chemical feeders not as specified in 3.6.1.6 and 3.6.2. (c) Light, buzzer, or any switch fails to operate. (d) Low-level alarm fails to operate within the water-level limits. (e) Valves fail to operate properly. (f) Evidence of water escaping through (g) Bottom stub shaft and rubb
37、er-lined (h) Pumping heads of solution feeder (i) Mechanical failure of any compo- air-release valve. bearing scored or scratched. corroded. nent or part. 4.6 Pilot-pack inspection. 4.6.1 Ezamination. The pilot pack shall be examined in accordance with 4.8.1. Presence of one or more defects shall be
38、 cause for rejection. 4.6.2 Tests. The pilot pack shall be tested in accordance with 4.8.2. Failure of the vibra- tion test or the free-fall drop test shall be case for rejection. . 4.7 Quality conformance inspection of pack. Provided by IHSNot for ResaleNo reproduction or networking permitted witho
39、ut license from IHS-,-,-, 1. NIL-W-0052027C 46 M 9799706 021775L1 I 4.7.1 Unit of product. For the purpose of inspection, a completed pack prepared for shipment shall be considered a unit of prod- uct. 4.7.2 Sampling. Sampling for examination shall be in accordance with Standard MIL- 4.7.3 Examinati
40、on. Samples selected in ac- cordance with 4.7.2 shall be examined as specified in 4.8.1. AQL shall be 2.5 percent defective. STD-105. 4.8 Inspection procedure. 4.8.1 Examination. The preservation, pack- aging, packing, and marking shall be ex- amined for the following defects: 114. Materials not as
41、specified for levels A and B. 115. Preservative applied to surfaces which will come in contact with chemical solutions and water, except waste water. 116. Electrical wiring system not sealed with tape as specified. 117. Float switch not sealed, blocked, and secured to prevent move- ment. 118. Gate v
42、alves and drain cocks closed. 119. Boxes and chest not secured to the base to prevent movement or damage. 120. Strapping not zinc coated for level A. 121. Any overpack missing. 122. Marking illegible, incorrect, or 123. Effluent launder not blocked and 4.8.2 Tests. The railcar test method shall be p
43、erformed on the pilot pack. The base- mounted unit (3 sections) shall be securely blacked to prevent movement on the car and tie2 Gown to prevent tirping. Antiskid plates shdl not be used for this test. The car shall be humped or shunted to cause impact at not less than 10 miles per hour, driliing a
44、 string of five empty cars with brakes skt and draft gear extended. A single impact missing. secured to rails. MIL-W-0052027C(MO) shall be applied to each end of the base- mounted, water-treatment section and to each side of the base-mounted, filter sections (4 impacts). Shifting of contents or loos
45、en- ing or breaking of holddowns, ties, stays, blocking, strapping, or bracing shall be cause for rejection. Any damage incurred by the water purification unit shall be cause for rejection. 5. PREPARATION FOR DELIVERY 5.1 Pilot pack. The pilot pack is defined as a preproduction pack which will be id
46、entical to the pack which the supplier will subse- quently produce in fulfillment of the con- tract. A pilot pack shall be made, examined, and subjected to the tests specified to deter- mine conformance to the preservation, pack- aging, packing, and marking requirements. Approval of the pilot pack s
47、hall not relieve the supplier of his obligation to preserve, package, pack, and mark the water purifica- tion units in accordance with this specifica- tion. Any changes or deviations of production packs from the approved pilot pack shall be subject to the approval of the contract- ing officer. 5.2 P
48、reservation and packaging. Preserva- tion and packaging shall be level A or C, as specified (see 6.2). 5.2.1 Level A. 5.2.1.1 Caution. Contact preservatives specified herein shall not be applied to any surface which will come in contact with chemical solutions, slurries, or water, except waste water
49、. 5.2.1.2 Preservatives. Surfaces of compo- nents and parts of the water purific a t ion unit requiring the application of a contact preservative in accordance with Specification MIGP-116, except as specified in 5.2.1.1, shall be coated with preservatives conform- ing to the applicable specifications listed in and shall be applied in accordance with Specification MILI-116. Surfaces of bolts, nuts, linkages, pins, grease fittings, levers, adjusting rods, clamps, cap scre
