Watson-Marlow MR-Series - Manual (Page 17)

Revision 1.4 / August 2013 Visit our website at www.masosine.com 17
Seal System – Disassembly and Assembly, cont.
Table 4 – Mechanical, Press (INTO) Plug Diameters
MR-120 = 1-5/8” or 41.2 mm
MR-125 = 2” or 50.8 mm
MR-130 = 2-5/8” or 66.6 mm
MR-135 = 2-5/8” or 66.6 mm
MR-150 = 3-5/8” or 92.1 mm
It can be fitted in either way, as there is no front and back side. NOTE: Apply even pressure to
the stationary face so as not to damage the o-ring located on the outer diameter of the face.
3. Install the mechanical seal, item 511, onto the shaft sleeve, item 531, such that the carbon face
slides over the sleeve last. The slot on the end of the mechanical seal opposite the carbon face
must be installed over the drive pin on the shaft sleeve.
4. Fit the mechanical seal and shaft sleeve assembly into the seal housing with the seal being
installed first. This will mate the stationary ceramic face to the carbon face.
5. For instructions regarding the disassembly and assembly procedures for the double lip seal or the
o- ring seal with flush, please contact Watson-Marlow MasoSine at +49 (0)7062 9560-0