Page 353 - The Tribology Handbook

Total loss grease systems C14

Typical pipe sizes used in grease systems

Bore Wall thickness Outside diameter
Material Standard No.
mm in mm in mm in
~~
STEEL 15* 2 1 3.25 0.128 21.5 0.756
20 3 4 3.25 0.128 26.5 1.006
Heavyweight grade IS0 65 25 1 4.05 0.160 33.1 1.320
40 1 4.05 0.160 48.1 1.820
50 2 4.50 0.176 59.0 2.350
Cold drawn, seamless, fully annealed IS0 3304 3.35 0.132 0.70 0.028 4.80 -
3
4.50 0.178 0.90 0.036 6.40 I6 I i
I
6.10 0.240 0.90 0.036 7.90 -
16 3
7.10 0.279 1.22 0.048 9.50 a
10.30 0.404 1.22 0.048 12.70 I
COPPER IS0 196 3.35 0.132 0.70 0.028 4.80 I6 -
I
4.50 0.178 0.70 0.028 6.40 I 4
As drawn (M) quality 6.10 0.240 0.90 0.036 7.90 -
16
Annealed (0) quality 7.10 0.303 0.90 0.036 9.50 3 8
IS0 274 2.80 0.110 0.60 0.024 4 0.158
3.40 0.130 0.80 0.032 5 0.197
4.00 0.160 1.00 0.039 6 0.236
6.00 0.240 1.00 0.039 8 0.315
7.60 0.300 1.20 0.047 I10 0.394
______
BRASS IS0 196 3.35 0.132 0.70 0.028 4.8 -
3
IS
4.50 0.178 0.90 0.036 6.1 I
Half-hard or normalised 6.10 0.240 0.90 0.036 7.9 -
16
5
7.10 0.279 1.22 0.048 9.5 3 I
-
3
NYLON IS0 7628 3.10 0.122 0.80 0.033 4.8 I6
I
4.10 0.165 1.10 0.043 6.4 -
I
5.40 0.213 1.30 0.050 7.9 16 5
6.20 0.245 1.80 0.070 9.5 3 8
2.40 0.090 0.80 0.032 4 0.158
3.30 0.130 0.85 0.034 5 0.197
4.00 0.160 1 .00 0.039 6 0.236
5.40 0.210 1.30 0.051 8 0.315
6.50 0.260 1.75 0.069 PO 0.394
* Figures in bold type indicate nominal bore or outside diameters used in ordering
data for flexible hoses used in grease systems
-
Typical working 7ypical working
Sizes pressures at 20°C' Sizes pressures at 20°C
GPe
mm in kN/rn2 Ibf/in2 mm in kN/mZ lbfjin'
_______-
SYNTHETIC RUBBER §ingle-wire 23000 3300 3500 500
Reinforced with cotton, terylrne: or braid Nominal
wire braid or spiral wrapped 5o bore
Multi-spiral L Nominal 7ooo0 10000 27000 4000
wrapped bore
- -~
PLASTICS High pressure 24500 3500 12.5 f Nominal 17500 2500
Simple extruded for low pressurc to single braid 28000 4000 bore 35000 5000
braided high pressure doublebraid
-. _.
Unreinforced 4 o.d. 3500 500 28 1Q o.d. 1750 250
-__-
POLYMER AND METAL
bore
Inner core of polymerlc material. Stainless steel outer 3 8 Nominal 7ooo 1000
braid
_~~~_______~____~___ ~~ -~
C14.4