Operating Manual
Item Description
1 Stationary Face 'O' Ring
2 Stationary Face
3 Rotary Face
4 Shaft 'O' Ring
5 Wave Spring
6 Drive Ring
The seal comprises of a rotary face which is
sealed to the shaft by an 'O' ring. A wave
spring(s) provide a force to maintain face to
face contact. Rotation is provided by socket
set screws which are tightened onto the shaft.
The stationary face is located in the rotorcase
and is prevented from rotating by three pins.
Seal faces are extremely brittle.
Take extreme care when handling.
Removing the Single Mechanical Seal
1. To release the seal from the shaft loosen
the socket set screws.
2. Remove the rotorcase with the stationary
sealing face still within its bore, taking
care not the chip the face.
3. Carefully remove the remaining part of
the seal from the shaft.
Fitting the Single Mechanical Seal
1. Use a solvent to wipe the lapped surface
of the seal faces until perfectly clean,
being extremely careful not to scratch the
faces.
2. Lightly lubricate the 'O' ring and shaft end
with a silicon grease (food quality if
necessary).
3. Firmly press the stationary face 'O' ring
onto the stationary face edge and locate
within the rotorcase bore over the roll
pins.
4. Mark the shaft to indicate the seal setting
length.
5. Push the 'O' ring within seal assembly
face bore and gently slide the seal onto
the shaft until it reaches the setting
position.
6. Tighten the socket set screws.
Shaft
Abutment
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11.0 Product Seals Removal and Fitting
11.1 Single Mechanical Seal
37
