Document rx5Z9M03bBaJ14Vk3o1QJ36aa

<* \ RWOVUSTHEirSSUP. 1 M(KOCVO. FkFI5C4>E MEMO ;-+-- _2> l T U (-* iOt to tot otuet no* orncui couuesnuottct **in o nut iteinr it tut / mttf-it- '4 s' l f* *. NAVAL SPEEDLETTER me Not EP/L5/JJ.0(712B) Tost GQL0276A Serial No. ie 22JAWl9o7 SPEEDLETTER TO: Chief, Bureau of Ships (Code 345C) Cm ia lira of doapoteboo. tiliafirae. UMira auilgrama whoa appropriate. Do not handle through ComaraatesUoa OSie. Deopatakphraemiogr mar bo aoed. Cm iIm No. window earolop-- whoa appropriate oad aTollablo. If nod for elaaaliM aiottor boadlo oo prooeribod la C S. Kray Bags. Aria. JtH oad fa ___ _____ Cpoa rocoipt EXPEDITE BANDUNQ oad DEUVEBT m much oo poootblo. / Subj: Investigation of packings and gaskets for use in hydraulic systems sen'll nji ng phosphate-ester fluids; MS 066-001; Test 01Q276A Baf: (a) BOSHZPS ltr A11/Bs 066-001(3450) ser 3450-164(64876) of 16 Aug 1955 (b) BGSHIPS apdltr All/HS 066-001(3450) Mr 3450-6 of S Jan 1957 (e) Kllitaxy Specification MU>P-29U para. F-3a By referanoe (a) the Station ws requested to conduct the subject investiga tion In compliance with reference (b), this is a progress report covering tests of sheet naterials and practical tests of hydraulic-re* packings. The physical properties of the sheet naterials were detemined initially and after lanereion for one week in Cellulube 220 phosphate-ester hydraulic fluid at 1$8*F. The ran packings were subjected to simulated-service test in the Station's telmotor-ra* packing-test apparatus. This test was conducted as described in reference (c), except that the fluid temperature was 150*F. The results ere tabulated below. 3K~C *^11405-57 . *. Copies to Signature and Title ^ , ,imM By direction ' ' '- ` n -,V ; A ` . ATTENTION ADDRESSEE: actly as Indicated on right Aadadrress reply ex- SENDER'S MAILING ADDRESS (Including Identity of originating office.) DIRECTOR AifflABOIIS. MVRrLUB) i~ t oitsnw PropTtlM m s 1 1 1 o ? as u if. s S! 43 ! *> *? ? so w 0 O 1& ycv> ' < 88 il g 0o0 3 z * T 55 f t ? o 8i1 IAt f 8i in1 V1C o 8i I ? Ri 0? Os ? W-+' 3at <X< <8B a<s a<s c* CrHM 3r4H IA 4 1 mO - o ? r o cIAy CoAAt w\ 3 NCC4TA"e o 3 O S4- CC4MM C l 3 est <A CM Cw4M> o 4 OC4MA t1 2 I*A' I I oa* Oar* fc Os 8 8 CITM 8 if, 1 53 ! -4a H IA & *i I9eAy* a s C Ak 8HtA4% 3 <as <BB a<s a. s < as utHrHs>4 *r i igH !i 1 1S ]l * si *SI H S Si s. 5 l*J P *1n * 1 *s 4 *oo J2i38 |H f CL, O il 5 COO ejS Sg oSo .4co0*o> 1 ll i *I*so r CaO s03 OHO%O 3ir> H JaO* 3 r^C8HOn #3OH r.>H co S3 432 s S <> $noo e<IoAysJi o8 3, a i 4l I e 1* t :itT H l i*J1a o @4 o 1 |1 3T HH |5 TM i B5TJ oh^ 1 3o 2 su> si X 0rH0 *4 1 i CH8M H 1 t i 1 J Mm S3o lid -p i Auo ff -O 5S-. 11* i Sif'3 s i & f.& * 3 8 ? 3 1 82 & ms s i 1 Ppk*ool Conical hydraulic neoprene binder Conical hydraulic neoorene binder Conical hydraulic butyl binder h b ooCH P3 s Pt. b 1t 2 c o2 1i *3 o 403 8 -s 1 ><s| Oo 09 1 i 43* | 8*H ia| . f43 4i3 iO ^s-H^wC?S^B KP/W/J10(7ia CRMC-M&S-003946 * ^ MP/L5/J10(7L2B) Bag. Bq>* St*. - 4m*^ ftaa Slanlatad Service Test Mfr. tv< Stria Hour* of Test Conical with Garlook binder 8321 176 Conical with butyl binder T with batjrl Wader Garlook 7514 Oarlock 8220 950 56 Cenieal with John-Mansville binder Conepae 44 124 Teat 0102764 Results Recessive leakage duo to extensive deterioration Satisfactory test continuing Insufficient ligULtr of oonstruetion to retain dupe tnder Ugh service preeeures Swelled and caused eoBsessive friction The reedlts dwv that the packings with conventional synttaetio-rubber Under* are not resistant to Cellulube 220. With few exceptions, these Materials swelled excessively, softened and lost strength. Only the bntyl or vyrsa naterlals are resistant to Cellulube 220. The latter Materials also were found to have alaost the sane resistance to a Mixture of Cellulube 220 with by volume of petroleum base fluid such as might result from incomplete drainage of the system during conversion to the phosphate-ester fluid* Result* of the simulated-service test show that conical or Y-type hydraulic puking* with neoprene binder are unsuitable for use with the phosphateeater fluid* Only the conical packing with butyl Under, Garlook 7514, is indicated to bo suitable by its 950 hours of satisfactory performance to The investigation will continue with tests of practical flange-joint tests of gasket materials* packings and SUT0001 CRMC-M&S-003 947 ' ""i w--- - M