Document jy9xQq1O5KvR7qQ0gr4dJgwER
ESSINEERING PURCHASE. SPECIFICATION ESO-INEERIKS AND RESEARCH PI7ISI0K
"CRAI72TE." SHEET PACKING
November 20, 1943 Engineorlag Purokas; Specification No. IT;
Sheet 1 of 5
i - scope These specifications cover compressed asccstoa cospooition elect packing kncna as "Granite", tMch is suitable for us* C3 a gackst material on a wide variety of liquids end gases encountered in pressure-piping systems.
NCE5: Tho'aaaa "Granite" is registered in tha United States Patent Cffice0
2 - DETAIL EEQUIHE^ESTS To) Packing shall be suitable for uso on steam, water, oil, air, acids, ammonia, alkali, gasoline, geese and for temperatures up to 750 degress F0
(b) Sheets shall have a natural asbestos color, parallel smooth surfaces, uni form hardness and density. They shall be pliable, resilient and suitable for gaeksts to prevent the leakage of fluids on pressure Joints,,
.(c) The finished sheet shall not bo graphitsd or otherwise coated,
(d) .Sheets shall ho cross-laminated, i.e,, the plies arc at right angles to each other. The plies shall be 1/64" thlok,
(e) The finished sheets shall be free from solvents used in the process of manufacture.
(f) Every square foot of packing shall be plainly marked on one surface only in accordance with Crene Co. drawing. All marking shall be in Crane Orange. Color sample to be obtained from Crene Co.
(g) Packing shall not deteriorate with age while in stook, and shall not cause objectionable corrosion of finished metal surfaces due to contact.
(h) Material shall be suitable for cutting into gaskats by ordinary Beaus.
S - MATERIAL (a) Sacking shall consist basically of en asfceetcs-rucber mixture together with other essential ingredients properly assembled and processed to pro duce a sheet which meet3 the -requirements specified herein.
(b) Packing which manufacturer proposes to furnish to these specifications must have the approval of the Underwriters' Laboratory (National Board
- " DIMENSIONS Dimensions of sheets shall be aa epacified on purchase order, p-vfl thickness shall be within the following tolsrances:
-continued.
CRTX 1240
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EHQIKE55LK3 PURCHASE SPECIFICATION EKOIKESHIHG AND RESEARCH DITISIOH
November 20, 1942 Engineering purchase Specification Ho. HC-
Sheet 2 of S
"CRAISTE." SHEET PACKING
4 - DIMENSIONS (CcatinnaA)
Thickness
Tolerances
l/&4
.0015
l/52 .
.005"
1/16"
x.006" (.062" to O067" thiokaess desired)
3/52"
.009"
l/8"
.012"
3/16"
.012"
)
1/4"
.012"
5 - PHYSICAL PROPERTIES (AT ROOM TEEfFEP-ATURE) Rhcn tes.tad in accordance with Section 6, packing shall have the following;
Tensile strength - Pc-nada per square inch W - - - ----------- --- - 4,500 Minimum (JCcapresaioa strength,-
0Thi3 test ia only required on the sheets 1/16" thick.
6 TESTS (a) Tensile Strength
|f
Three specimens, of size and shape shown below Fig. 1, shall be -out lengt:
wise of the sheet (longitudinal) end three specimens at right eagles ther
(treasverse). Specimens shell be pulled* in tension at e rate not exceed
lag. 0.4" per minute end the rsaulta obtained from tbs six specimens will '
-.1 used to determine the' tensile strength.
The breeding lead is computed in pounds per square inch, using the amille cross-sectional erea at the breaking eaotion of specimen,,
If in any case the result cf a single longitudinal or a single transvere*
specimen is below specification requirement, it will be discarded and a r\
test made. Efcen the results cf ths els specimens are inconsistent, k re
test of a coaplats set will ba made0
'
^HOTg.: The spscimon should bs eligacd carsfully so as to produce axial pull and avoid tearing.
CRTX 1241
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C RAKE
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EROXBERIMa PURCHASE SPECIFICATIGH EKGIHEERIKQ ASP RESEARCH DIVISION
Hotembar 20, 1842 Engineering Purohana Spooifioation Ko. wo-^
"CRAyrEE" SHSEJ PAGEUP
Shoot 3 of 0
6 - TR9TS (Continued)
(b) Compression Strength Three specimens, each 3TM square, shall bo tested by forcing the raised faco oi? compression ring (one squaro in. area) of a special stool block Against
* specimen as shown In Fig. 3 and not 1Jig the load required to crush the speci men* .
The specimen shall bo oompressod at a rate not exceeding .09" per minute .
The compression strength shall be determined by the force required to col-- lapse the pecking In contact with tho raised face,
IT in any case the result of a single spoeijasn is below specification re quirements, It will bo discarded and a retest made* When the results of the three specimens are inconsistent, a retest of tho complete set will be
made. V RAM
(Ci) SPECmEN
TEST auooc To BE. HARD&NC.O AND QKOOND (VT '
(A) RAiSE-D r-ACEL DE.TA.L'POSITION
(UNIT fDR COMPRESS\ON TEST)
IMPORTART! During t.he compression tost it is Tory important that
' ''.the* applied load bo perpendicular to the surface of
the raised face on test block and.that ell horizontal
surfaces of-each member in tho assembly Pig. 2 bo flat, -
parallel and smooth. <
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PROPOSED
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EKGIKEERIKa PURCHASE. SPECIFICATION EKOZNSPRINO jam RESEARCH DIVISION
Novccbor SO, 1942 Engineering Purchase Specification No, w
"CRANrE^affiSTPACKlK}
Sfcoet 4 of g
6 - TESTS (Continued)
(o) Nelght Logo ut Taraporaturc Three specimens, 3/d" wido s 5" long, shall is subjected to dry boat at a temperature of-900 degrees F, for a period of 24 houro, Tbs weight loss stall not exceed 15#.
7 - EORKUAKSHIP' Packing eta'll bo froo from impcrfeoticns end cay injurious foreign particles.
8 - WBIQ3T Tbs qpighte of tie finished packing shall confers to tha fallowing:
Thickness ~l76d
1/32"
1/16" 3/32" 1 1/8" 3/ld
1/4"
:
Pounds per Square Tard
Uinim.ua
Maximum
1,00
lo3
2,2 2*7
M. 6.6
5*4 8,1-
6,8 '
10*6
13*2.-
16*2 ^
ir06-.
21,6 *
9 - PATENTS The Tender must agree to defend any end all infringement aulto in which 6rcno Co* and/or its customer is (sro) cade a defendant (or defendants) by reason of the sale and use of this material# Further, the vendor agrees that it shell pay all opeta end expenses incident to say such litigations end, further, that it shall hold Crane Co* ahl/ar its customers safe end. heroines, absolutely and at all
[' events , against all claims or demands of eTory kind to uhloh Crane Co, end/or its customers nay be subjected under the patent lavs in connection Wtfc. the sale and
use. of this materiel*
10 - INSPECTION (BY CRAMS CO.) ) Eaoh shipment of materiel received shall be inepaoted by the Inspection end
Metallurgical Departments for ocxpiiance with those specifications, end approved before raleesins'tp the shop for use*
11 - REJECTION Crcne Co, reserves the right to reject any portion or all material purchased to thsso specifications .which fails to conform to the requirements specified heroin
or which is found to have injurious dsrocta during fabrication,.
12 ** P-&CKIKS FOR SHIPMENT AH material shall be suitably protested egaiaot domes during shipment and c-rdi**
- aory handling,
...
All material shall *b properly,separated by size and ordor-number.
-OM'-t-isuad-
CRTX 1243
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PROPOSED
CRANE
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EHOIHSSRIKS PURCHASE SPECIFICATION BSGISSERINO AND RESEARCH DIVISION
"CRANITE" SHEETPACEINa
November 20, 1942 Engineering Purchase Specification Ho. po~
Sheet 5 of 8
12 - PAOKjDiG- POR SKTPUKV& (Continued)
Sheets shall be peoted in suitable ooatainaro eo they can bo handled convenieatly at destination, end tho .i.'3igbt of each p&clcage shall cot'eroeed that specified on purchaao order.
Each container shall be carted to designate:
Size cad thicfcnecs of cheat. Engine orleg Purchase Spsoifiaation number. Name of manufacturer. Purchase order number. Net might.
13 - ORDERING Orders should designate:
Size end thicknsss. Quantity. Engineering Purchase Specification No. BO-____ Haxiona might of package. Purchase order number.
APPROVED BY; 0
Direoting Engineer Valve end Pitting Engineering Department
Metallurgical Department
Standards Department Manufacturing fiesearch Division
WRITTEN BT: J. G-. Oskol
CRTX 1244