John Crane 4610 - 11. Website; 12. Fitting Lubricants

4610, 4615, 4620P, 5610, 5610D, 5610L, 5610P, 5610Q, 5610VL,
5610VQ, 5611, 5611L, 5611Q, 5615, 5615L, 5615Q, 5620, 5620D, 5620P,
5620VP, 5620V, 5625, 5625P, EZ-1, FFET, SB1, SB1A, SB2, SB2A, SBW
STANDARD CARTRIDGE SEALS
Installation, Operation & Maintenance Instructions
4
TYPE
11. Website
These instructions and other seal information can be found at
www.johncrane.com.
12. Fitting Lubricants
Elastomers and PTFE Lubricant
General applications Soft hand soap/water solution, glycerine
(glycerol)
Food, pharmaceutical or similar Consult machine manufacturer
NOTE Always use a lubricant that is compatible with the machine
and any ancillary machine and sealed product. Use lubricant
sparingly.
Introduction
This document covers fitting of the mechanical seal to rotating machinery
and should be kept for future reference. It should be used with any
instruction manuals supplied with the rotating machinery and any
ancillary equipment.
The mechanical seal contains precision lapped components which have
been designed to minimize process fluid emissions when selected, fitted
and used correctly.
If the process fluid is toxic or hazardous, appropriate
precautions must be taken to contain any emissions.
Never burn any of the rubber or plastic parts of the
mechanical seal. Toxic fumes may be generated.
ATTENTION The machinery operating conditions must not exceed the
published operating limits of the mechanical seal.
ATTENTION Take care when handling the mechanical seal as it
contains precision lapped parts.
NOTE Operating limits and all dimensions can be found at:
www.johncrane.com.
The operating limits will depend on the materials
used.
TABLE 1. Socket Set Screw Tightening Torque
All Except 5600 Series
Screw Size
Torque
(lubricated)
Nm/lbf·ft
Screw Size
Torque
(lubricated)
Nm/lbf·ft
M5 3.0/2.2 1/4-20 UNC 7.9/5.8
M6 4.0/3.0 5/6-18 UNC 14.7/10.8
M8 11.0/8.1 3/8-18 UNC 26.0/19.2
TABLE 2. Socket Set Screw Tightening Torque
5600 Series Only
Seal
Size Code
Screw
Size
Torque
Nm/lbf·ft
Screw
Size
Torque
Nm/lbf·ft
Up to 0480 M5 3.5/2.6 #10-24 UNC 3.0/2.2
0500 to 1206 M6 7.0/5.2 1/4-20 UNC 8.0/5.9
1250 and above M8 15.0/11.1 5/16-18 UNC 15.0/11.1