Rating, Performance, Dimensions | Flexible Pipe Nipples
Ratings, Performance, Dimensions 8777 nipples are available in sizes ½ ” NPS through 6” NPS. Epoxy coating is only available on 1 ½ ” pipe size and larger. For pipe sizes larger than 6” see Bulletin 8782A Flanged Expansion Joints. Pressure drop: Pressure drop through a corrugated metal hose is approximately three times that of comparable size standard steel pipe. Standard lengths offered are the minimum lengths required for up to 3⁄16 ” maximum vibration and ¾ ” static offset. They are not intended to be stretched or compressed at installation.
Velocity: 8777 unbraided hose are rated for a maximum velocity of 100 ft/sec gas (50 ft/sec liquid). When the hose is installed in a bent condition, these velocity values should be reduced by 50% for a 90° bend, 25% for a 45° bend, and so on, proportional to the angle of bend.
3/4" OFFSET
See table below for minimum bend radii, dimensions, and additional specifications.
A–pipe size
A–pipe size
Corrugated Flexible SST Tubing
B
C
B
D
Dimensions Table
Minimum centerline bend radius (permanent bend) (inches)
Minimum centerline bend radius (constant flexture) (inches)
Flexible Pipe Nipple 8777, 8777-H, 8777-E pipe size designation
Maximum Working Pressure (PSI)
A (male npt)
C
D
B
Weight (lb.)
(inches)
(inches)
(inches)
1 ½ 1 ½
4 ¼ 4 ¼
7 ¼ 7 ¼
10 ½ 10 ½
2 2 3
20 20 20 15 10 10 6.5 4.5
¾ ¾
-01
½ ¾
-0 -1 -2 -3 -4 -5 -6 -7 -8
1
2 2 2
5 7 7 9
9
12 12
1
1 ¼ 1 ⁄2
11 11
3 ½ 4 ½
1 ½
12 ½
2
2
2 ¼ 2 ¼ 2 ¾ 2 ¾
13 ½ 14 ½ 16 ½
11 13 15 23 39
5
3 ½
2 ½
10 11
5 ½
4 5
3 4 6
6
14 ½ 14 ½
20
11 20
2
10 19
3
20 ½
3.5
Bulletin 8777 Page 3
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