Page 169 - Fluid Fitting 2018_extended

TECHNI-TURN STAINLESS STEEL
90° ROTARY ELBOW

SEAL TYPES

The standard unit comes with nitrile rubber seals , teflon back up washers and PETP bushes
to align the shaft. This combination is mainly suitable for cold water or hydraulic oil. If the
application involves chemicals or excessive temperatures then please see the basic application
seal material resistance chart listed below. If you are still unsure of correct seal type then
please contact our sales staff for advice. All units supplied with Viton or Ethylenepropylene
(EPR) seals are also supplied with Teflon bushes instead of the standard PETP bushes.

FLUID NITRILE VITON EPR

Acid - all types - - -
Air - up to 71deg C. E E E
Air - 71deg C. to 93deg C. G E E
Air - 93deg C. to 150deg C. U E G
Diesel Oil E E U
Gasoline E E U
Hydraulic Oil - up to 120deg C. E E U
Hydraulic Oil - 120deg C. to 230deg C. U E U
LPG E E U
Steam - up to 198deg C. U U C
Water - up to 93deg C. E E E
Water - 93deg C. to 176deg C. U U C

E = Excellent, G = Good, C = Conditional, U = Unsuitable, - = Consult Factory

For constant rotation applications i.e. cooling rollers, hydraulic clutches etc, roller bearings
should be used in place of the bushes.

Size : 1/4” – 3/4” Up to 20 RPM use Bushes – Over 20 RPM use Bearings.
Size : 1” – 1.1/2” Up to 10 RPM use Bushes – Over 10 RPM use Bearings.

Note : The above is indicative only. The bushes will not handle high revolutions as they wear
out very quickly which can cause the shaft to pick up on the inside of the body & then makes
the unit unrepairable. With the bearing unit the seals wear out but the shaft stays aligned by
the bearings and the seals can then be replaced at a much lower cost than replacing the whole
unit.

I19

PH: 0800 FITTINGS 24 HOURS.
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