Distance between spacers must be calculated so the maximum load per spacer ring does not exceed the maximum load carrying capacity for the type used as shown in the tables. Maximum load per spacer is calculated based on the weight of the pipe filled with liquid divided by the number of spacer rings installed.

The maximum distance of 10ft / 3m shall not be exceeded due to the danger of the pipe sagging between the spacers support points unless the pipe manufacturer states differently.

Our products: Spacers

Special applications. On request spacers can be manufactured in other types of plastic material according to the mechanical and temperature requirements of the application.


Raci Spacers are divided into 3 groups which address a wide range of pipe sizes, and weights. Individual spacers within each group have specific load carrying capacities. The tables below state these figures with a built in safety factor. All of these factors must be verified to determine the best spacer type for the application.

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small Spacer Diameter Pipe Range Runner Height available

S, T

60 - 164 mm O.D.
2 - 7 inch O.D.
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20 mm
.79 inches

C, D, I 42 - 200 mm O.D.
2 - 8 inch O.D.
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15 mm
.59 inches

A, B

55 - 281 mm O.D.
2 - 12 inch O.D.
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19, 36 and 50 mm
.75, 1.42 and 1.97 inches

medium Spacer Diameter Pipe Range Runner Height available

F, G

92 - 528 mm O.D.
3 - 20 inch O.D.
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25, 41, 60, 75 mm.
98, 1.61, 2.36 and 2.95 inches

M, N

143 - 1015 mm O.D.
6 - 39 inch O.D.
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18, 25, 36, 41, 50, 75, and 90 mm
.70, .98, 1.42, 1.61, 1.97, 2.95, and 3.54 inches

P, Q

143 - 1015 mm O.D.
6 - 39 inch O.D
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110 and 120 mm
4.33 and 4.73 inches

large Spacer Diameter Pipe Range Runner Height available

L

360 - 1241 mm O.D.
14 - 50 inch O.D
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25, 50, 75, 100, 125, 150, 175, 200 mm
.98, 1.97, 2.95, 3.94, 4.92, 5.91, 6.89 and 7.87 inches

E, H

221 - 3414 mm O.D.
9 - 134 inch O.D
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. 25, 41, 60, 75, 90, 110 and 130 mm
.98, 1.61, 2.36, 2.95, 3.54, 4.33, 5.11 inches

Spacer Extensions

When a higher element height is required, extensions are available in 146, 171, and 197 mm (5.75, 6.73 and 7.76 inches) heights. These extensions fit easily over the regular spacers projections. Contact a distributor for more information.