Metal Bellows Correctedn 7/11/00 2:46 PM Page 24
SINGLE EXPANSION JOINTS – METAL 3" AND 3.5" SIZE
MATERIALS OF CONSTRUCTION
1. Rated cycle life is 2000 cycles per EJMA 7th edition for any non-
BELLOWS: ASTM A240 T304. To specify alternate bellows
concurrent movement tabulated.
material, add to part number. Refer to page 19.
2. To combine axial, lateral movements, refer to page 20, step 5.
PIPE: ASTM A53/A106
3. Maximum axial extension movement is 50% of tabulated axial
50 lb. Series: Sch. 40
value.
150 lb. Series: Sch. 40
4. To obtain greater movements or cycle life refer to page 20, step 5 or
300 lb. Series: Sch. 40
contact the factory.
FLANGES: ASTM A105/A36/A516-70
5. Catalog pressure ratings are based upon a maximum bellows
50 lb. Series: 150 lb. ANSI B16.5 R.F.S.O.
temperature of 800°F. Actual operating temperature should always
150 lb. Series: 150 lb. ANSI B16.5 R.F.S.O.
be specified.
300 lb. Series: 300 lb. ANSI B16.5 R.F.S.O.
6. If unit is flanged, see page 16 for maximum flange pressure ratings.
COVERS: Carbon Steel
7. Maximum test pressure: 1 1/2 x maximum working pressure.
TIE RODS, GIMBALS, HINGES: Carbon Steel
8. Maximum torque values are on page 68.
LINERS: 300 Series Stainless Steel * For available angular rotation, contact factory.
Nominal No. of Non-Concurrent Axial Lateral Angular WW FF/VV FW/VW
Diameter Pressure Convo- Axial Lateral Angular Spring Rate Spring Rate Spring Rate OAL Weight OAL Weight OAL Weight
(In.) (psig) lutions (In.) (In.) (Deg.) (Lbs/In.) (Lbs/In.) (In.-Lb/Deg) (In.) (Lbs.) (In.) (Lbs.) (In.) (Lbs.)
4 0.46 0.07 10.0 881 6794 30 7 3/4 4 5 7/8 16 6 3/4 10
3”
8 0.92 0.27 10.0 440 849 15 9 1/2 4 7 5/8 17 8 1/2 11
Effective
50 12 1.38 0.61 10.0 294 252 10 11 1/4 5 9 3/8 19 10 1/4 12
Area
12.4 in.
2
16 1.85 1.09 * 220 106 8 13 5 11 1/8 21 12 13
20 2.40 1.78 * 252 76 9 14 3/4 6 12 7/8 29 13 3/4 17
4 0.24 0.04 6.9 4077 31455 140 7 3/4 4 5 7/8 17 6 3/4 10
3”
8 0.48 0.14 10.0 2039 3932 70 9 1/2 5 7 5/8 18 8 1/2 11
Effective
150 12 0.72 0.32 10.0 1359 1165 47 11 1/4 5 9 3/8 21 10 1/4 13
Area
12.4 in.
2
16 0.96 0.56 10.0 1019 491 35 13 6 11 1/8 24 12 15
20 1.20 0.88 * 815 252 28 14 3/4 6 12 7/8 29 13 3/4 18
4 0.21 0.03 6.0 5035 38232 170 7 3/4 4 5 1/8 27 6 3/8 15
3”
8 0.41 0.12 10.0 2517 4779 85 9 1/2 5 6 7/8 28 8 1/8 16
Effective
300 12 0.62 0.28 10.0 1678 1416 57 11 1/4 5 8 5/8 31 9 7/8 18
Area
12.2 in.
2
16 0.83 0.49 10.0 1259 597 43 13 6 10 3/8 34 11 5/8 20
20 1.11 0.83 * 1293 387 43 14 3/4 7 12 1/8 45 13 3/8 26
4 0.50 0.06 10.0 833 8258 37 7 3/4 4 4 1/4 22 6 13
3.5”
8 1.00 0.26 10.0 416 1032 18 9 1/2 4 6 23 7 3/4 14
Effective
50 12 1.50 0.58 * 278 306 12 11 1/4 5 7 3/4 25 9 1/2 15
Area
15.9 in.
2
16 2.00 1.04 * 208 129 9 13 5 9 1/2 27 11 1/4 16
20 2.69 1.76 * 235 92 10 14 3/4 6 11 1/4 35 13 21
4 0.26 0.03 6.7 3855 38232 170 7 3/4 4 4 1/4 23 6 13
3.5”
8 0.53 0.14 10.0 1927 4779 85 9 1/2 5 6 24 7 3/4 15
Effective
150 12 0.79 0.31 10.0 1285 1416 57 11 1/4 5 7 3/4 27 9 1/2 16
Area
15.9 in.
2
16 1.06 0.55 * 964 597 43 13 6 9 1/2 31 11 1/4 18
20 1.32 0.86 * 771 306 34 14 3/4 7 11 1/4 36 13 21
4 0.26 0.03 6.6 2967 28613 127 7 3/4 4 5 1/4 34 6 1/2 19
3.5”
8 0.51 0.14 10.0 1483 3577 64 9 1/2 5 7 36 8 1/4 20
Effective
300 12 0.77 0.30 10.0 989 1060 42 11 1/4 5 8 3/4 38 10 21
Area
15.9 in.
2
16 0.96 0.50 10.0 1927 1195 85 13 8 10 1/2 52 11 3/4 30
20 1.19 0.77 * 1542 612 68 14 3/4 9 12 1/4 62 13 1/2 36
PART NUMBER EXAMPLE NOM I.D. STYLE ENDS PRESSURE NO. CONS ACCESSORIES BELLOWS MATERIAL
English 3 AT PP 50 8 C 304L
24
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