1、. -* MIL-P-82442 (6) 13 W 7977706 0360887 O W MIL-P-82442( OS) AMENDMENT 6 19 April 1989 AMENDMENT 5 30 March 1979 SUPERSEDING MILITARY SPECIFICATION PUMP, SEA WATER This amendment forms a part of Military Speci fi cati on MIL-P-82442( OS) dated 10 May 1966. Wherever it appears in specification dele
2、te Bureau of Naval Weaponsn and substitute “Naval Sea Systems Command“; also, delete BuWepsn and substitute NAVSEA“ . PAGE 1 Paragraph 2.1, under SPECIFICATIONS: Delete *MIL-C-4343n and its title. * Paragraph 2.1, under STANDARDS: Delete “S-29561, Packing, Preformed, O, Ring, Synthetic Lubricant Res
3、istant. . Paragraph 2.1, under DRAWINGS: Delete “Pump Assemnly, Sea Watern and sub- stitute Pump Assembly, Sea Watern; delete Pakcing, Preformed“ and sub- stitute “Packing, Preformed“. At the bottom of page, add the following: Beneficial comments (recommendations, additions, deletions) and any perti
4、nent data which may be of use in improving this document should be addressed to: Commanding Officer, Naval Ordnance Station, Standardization/Documentation Division (Code 3730), Indian Head, MD 20640-5000n. PAGE 3 Paragraph 3.3.1. Delete and substitute: “.3.1 Pressure and flow requirements. The pump
5、shall deliver 8.3 gallons per minute (gpm) minimum during the initial test of 1-112 minutes duration, when operating at 3880 +10 revolutions per minute (rpm) and having an inlet pressure of 15 +2 pouns per square inch gage (psig) and outlet pressure adjusted to 265 ClO psig. The flow rate of the pum
6、p, when operated under the same conditions as above, must be at least 7.5 gpm during the first six duty cycles of the operational service life of the pump, and at least 6.8 gpm during the remaining four duty cyclesn, AMSC NIA Page 1 of 5 FSC 1355 DISTRIBUTION STATEMENT A. 1 imi ted. Approved for pub
7、lic release; distribution is un- J_ - L_-C - - - - 7 _1 - -_ - - - _ Licensed by Information Handling Servicesa. MIL-P-82442 (6) 13 777770b 03bO 2 MIL-P-82442(OS) AMENDMENT 6 PAGE 5 Paragraph 4.1. Delete and substitute: H44.1 Responsibflity for inspection. Unless otherwise specified in the contract,
8、 the contractor is responsible for the performance of all inspec- tion requirements as specified herein. Except as otherwise specified in the contract, the contractor may use his own or any other facilities suitable for the performance of the inspection requirements specified herein, unless disappro
9、ved by the Government. The Government reserves the right to perform any of the inspection set forth in the specification where such inspections are deemed necessary to assure supplies and services conform to prescribed requirements“ PAGE 9 Paragraph 4.4.4.1. Delete and substitute: “4.4.4.1 Operation
10、al test. Install the pump in the pump test stand and connect it to the appropriate fittings in accordance with Figures 1 and 2. With the drive unit operating the pump at 3880 +10 rpm and with an inlet pressure of 15 +2 psig, the output pressure sharl be adjusted to 265 510 psig. The flow-rate shall
11、be at least 7.5 gpm during the first six duty cycles of the operational service life, and at least 6.8 gpm during the remaining four duty cycles. The pump shall operate for one complete duty cycle of 7 minutes on salt water. Post-test servicing and maintenance shall be performed in accordance with 4
12、.5.7n. PAGE 10 Paragraph 4.4.4.4, lines 4 and 5: Delete *in accordance with Table VII in the sequence shownw and substitute accordance with Table VIII. Test sequence is optional.“ Table VIII: Delete “Test Sequencen column entirely. PAGE 13 Paragraph 4.5.3, line 4: Delete wcharacteristics indicated:“
13、 and substitute characteristics indicated: (See Figure 2)#. Paragraph 4.5.3(a): Delete nPressure gage:“ and substitute gage, outlet :“ Paragraph 4.5.3(b): Delete nHorsepower: two nominalH and substitute nHorsepower: two minimumn, Paragraph 4.5.3(e): Delete and substitute: khen connected in the test
14、configuration, the orifice shall be capable of.restricting the outlet water flow to produce a pressure of 265 - +10 psig minimum as indicated on the outlet pressure gagew. #(e) Variable orifice: ., Pige 2 of 5 I t-:r Licensed by Information Handling Services- MIL-P-82442 (6) 13 9999906 0360889 4 W M
15、IL-P-82442(OS) AMENDMENT 6 Paragraph 4.5.3 Add the following subsections: “f) Pressure gage, inlet: Range; O to 25 psig Accuracy: - - +2% full scale Operating temperature +25F to +150F minimum Gage size: 6-inch minimumn Element: 50 micron maximum Operating pressure . 50 psig minimum F1 ow capaci ty
16、: 10 gpm minimumw “h) Flow meter: hange : O - 10 gpm, accuracy to 22% full scale Minimum operating “(9) Filter: temperature: +25OF to +10O0Fn PAGE 14 Paragraph 4.5.4.2. Delete and substitute: “4.5.4.2 O eration. Install the pump in the pump test stand and connect it to the appropr 9-rt a e fittings
17、in accordance with Figures 1 and 2. With the drive unit operating the pump at 3880 210 rpm and with an inlet pressure of 15 52 psig, the output pressure shall be adjusted to 265 +10 psig. The flow rate shall be at least 8.3 gpm. The pump shall operate far 1 1/2 minutes on tap water. Post-test servic
18、ing and maintenance shall be performed in accordance with 4.5.7. When this acceptance test is performed as part of the preproduction test schedule, the minimum flow rate shall be 7.5 gpm”. Paragraph 4.5.7. Delete and substitute: #4.5.7 Post-test servicing and maintenance. The pump shall be dis- asse
19、mbled and cleaned after each run. All packing preforms shall be re- placed. The pump shall then be reassembled. The vanes must be installed in their original position with regard to rotation and contact edge, but may be interchanged from slot to slot. The wear plate shall not be reversed from its or
20、iginal position. The pump shall be lubricated in accordance with instructions on Drawing 1566923”. After paragraph 4.5.7 add new paragraph as follows: shall comply with th e requirements of Sec PAGE 17 4.5.8 Packaging, packing, and markin . Packaging, packing, and marking Paragraph 4.7.3. Delete the
21、 following: G rease MIL-G-3278 Lub r cant MIL-L-4343” * Paragraph 4.7.4. Under IDENTIFICATION delete wMS-29561-012, 014, 016n and substitute n1550752-15, 16, 17#. Page 3 of 5 -. - - -I_- Y Licensed by Information Handling ServicesPAGE 18 * Paragraph 4.7.4. Under IDENTIFICATION delete wNAS-617-4n and
22、 substitute “1557052-24“ PAGE 22 Replace Figure 2 with new Figure 2, attached. The margins of this amendment are marked with an asterisk to indicate where changes (additions, modifications, corrections, deletions) from the previous issue were made. This was done as a convenience only and the Governm
23、ent assumes no 1 iabi 1 i ty whatsoever for any inaccuracies in these notations. Bidders and contractors are cautioned to evaluate the requirements of this document based on the entire content irrespective of the marginal notations and relationship to the last previous issue. MIL-P-ZY42 (b) 13 W 999
24、9906 03b0890 O MIL-P-82442(OS) AMENDMENT 6 I Custodian Navy - OS Preparing Activity Navy - OS Project No. 1355-N xrc .- I . c _CI_-_?! f- Licensed by Information Handling Services. MIL-P-82LI42 (6) 33 m 9999906 0360893 2 m MIL-P-82442(OS) AMENDMENT 6 u Lc 1 x d o. a 1 rn I & I I r &I a 3 a 8 Page 5 of 5 ,r- II_ _ Licensed by Information Handling Services
