John Crane R33 Manual Download Page 4

ROPAC COMPONENT SEALS

Installation, Operation & Maintenance Instructions

4

TYPE R33/34/50

9.6 Packaging

All packaging materials used are made from recyclable, environmentally 

friendly materials. When in doubt or for further information and advice on 

this subject, please consult John Crane.

10. Quality Assurance

This seal has been assembled in accordance with John Crane Quality 

Assurance Standards and with proper machine maintenance and use 

will give safe and reliable operation to the maximum recommended 

performance as shown in any relevant approved John Crane publication.

11. Mechanical Seal Piping Plans

To create the optimum environment for the mechanical seal it is usually 

necessary to add piping and sometimes extra equipment.
For advice on a specific application please contact John Crane.
For liquid lubricated seals, venting of air trapped around the seal faces 

is essential for correct seal operation. For horizontal machines the best 

method of automatically achieving this is a piping connection at top dead 

center (TDC). For vertical machines a piping connection above the seal 

faces is required.

12. Website

These instructions and other seal information can be found at  

www.johncrane.com.

13. 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.

Summary of Contents for R33

Page 1: ... performance limits in accordance with its designated use and the instructions set out in these instructions 4 If the pumped fluid is hazardous or toxic appropriate precautions must be taken to ensure that any seal leakage is adequately contained Further information on sealing hazardous or toxic fluids should be obtained from John Crane prior to seal installation 5 Fluorocarbon components should n...

Page 2: ... free rotation 4 Consult all available equipment operating instructions to check for correctness of all piping and connections particularly regarding seal recirculation flush heating or cooling requirements and services external to the seal ATTENTION This mechanical seal is designed to operate in a liquid so the heat energy it creates is adequately removed The following check should be carried out...

Page 3: ...to allow immediate replacement of the seal in the machine The order codes for spare parts can be found in the parts list on the installation drawing or from John Crane directly In the case of non contacting gas seals only complete cartridges should be stored The following data is necessary for spare part orders Part number Quantity 9 Environmental Aspects 9 1 Company policy extract It is the polic...

Page 4: ...uctions and other seal information can be found at www johncrane com 13 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 Thi...

Page 5: ... John Crane seal selection literature or process Typical operating limits can be found on the specification sheet from John Crane The selection of materials used in the construction of a seal should be made with regards to their temperature and chemical resistance compatibility with the liquid being pumped TypicalSealCrossSection andSealsDimensions FIGURE 2 Type R33 A Seal size B 0 3 0 6 μm Ra 12 ...

Page 6: ... Setting procedure is described with respect to the shaft but is equally applicable to a fitted sleeve ATTENTION If L3 is over length the seal will be under compressed and will leak If L3 is under length the seal will be over compressed and this will cause dry running and high wear of the seal faces Find the true seal position as follows 1 Refer to the appropriate seat mating ring instruction manu...

Page 7: ...ive collar positively engaging the drive pin Set screw driven seals Adjust the set screw until clear of the retainer bore Fit the seal unit onto the shaft and accurately align the back of the retainer with the seal setting mark Lightly tighten the set screws to hold the seal in position then fully and evenly tighten the screw to the torque recommended table ATTENTION Accurate torque settings will ...

Page 8: ...0 40 0 55 0 60 0 51 0 58 0 4 0 40 8 47 5 4 0 54 2 58 0 3 0 2 5 1 0 7 0 39 0 45 0 28 0 2 0 6 0 9 0 5 0 4 0 1 5 0430 43 0 58 0 63 0 54 0 61 0 4 0 43 8 50 5 4 0 57 2 61 0 3 0 2 5 1 0 7 0 39 0 45 0 28 0 2 0 6 0 9 0 5 0 4 0 1 5 0450 45 0 60 0 65 0 56 0 63 0 4 0 45 8 52 5 4 0 59 2 63 0 3 0 2 5 1 0 7 0 39 0 45 0 28 0 2 0 6 0 9 0 5 0 4 0 1 5 0480 48 0 63 0 68 0 59 0 66 0 4 0 48 8 55 5 4 0 62 2 66 0 3 0 2 ...

Page 9: ...0 0 6 0 7 5 2 5 1350 135 0 167 0 175 0 157 0 166 0 8 0 135 8 151 0 5 0 160 0 166 0 8 5 8 0 3 2 12 0 82 0 57 0 3 0 9 0 13 0 7 0 7 5 2 5 1400 140 0 172 0 180 0 162 0 171 0 8 0 140 8 156 0 5 0 165 0 171 0 8 5 8 0 3 2 12 0 82 0 57 0 3 0 9 0 13 0 7 0 7 5 2 5 1450 145 0 177 0 185 0 167 0 176 0 8 0 145 8 161 0 5 0 170 0 176 0 8 5 8 0 3 2 12 0 82 0 57 0 3 0 9 0 13 0 7 0 7 5 2 5 1500 150 0 182 0 190 0 172 ...

Page 10: ... 4 0 43 8 55 5 4 0 57 2 61 0 3 0 2 5 1 0 7 0 49 0 52 5 23 0 38 0 2 0 6 0 9 0 5 0 4 0 1 5 0450 45 0 50 0 66 0 70 0 56 0 63 0 4 0 45 8 57 5 4 0 59 2 63 0 3 0 2 5 1 0 7 0 49 0 52 5 23 0 38 0 2 0 6 0 9 0 5 0 4 0 1 5 0480 48 0 53 0 69 0 73 0 59 0 66 0 4 0 48 8 60 5 4 0 62 2 66 0 3 0 2 5 1 0 7 0 49 0 52 5 23 0 38 0 2 0 6 0 9 0 5 0 4 0 1 5 0500 50 0 55 0 71 0 75 0 62 0 70 0 4 0 50 8 62 5 4 0 64 8 70 0 4 ...

Page 11: ...50 0 156 0 7 0 6 5 1 7 12 0 92 0 42 0 70 0 3 0 9 0 10 0 6 0 7 5 2 5 1350 135 0 140 0 172 0 180 0 157 0 166 0 8 0 135 8 156 0 5 0 160 0 166 0 8 5 8 0 3 2 12 0 97 0 47 0 72 0 3 0 9 0 13 0 7 0 7 5 2 5 1400 140 0 145 0 177 0 185 0 162 0 171 0 8 0 140 8 161 0 5 0 165 0 171 0 8 5 8 0 3 2 12 0 97 0 47 0 72 0 3 0 9 0 13 0 7 0 7 5 2 5 1450 145 0 150 0 182 0 190 0 167 0 176 0 8 0 145 8 166 0 5 0 170 0 176 0...

Page 12: ... 2 0 6 0 9 0 1 5 54 2 58 0 3 0 2 5 1 0 0430 43 0 59 0 63 0 45 0 34 0 54 0 61 0 4 0 43 8 2 0 6 0 9 0 1 5 57 2 61 0 3 0 2 5 1 0 0450 45 0 61 0 65 0 45 0 34 0 56 0 63 0 4 0 45 8 2 0 6 0 9 0 1 5 59 2 63 0 3 0 2 5 1 0 0480 48 0 64 0 68 0 45 0 34 0 59 0 66 0 4 0 48 8 2 0 6 0 9 0 1 5 62 2 66 0 3 0 2 5 1 0 0500 50 0 66 0 70 0 47 5 34 5 62 0 70 0 4 0 50 8 2 5 6 0 9 0 2 0 64 8 70 0 4 5 4 0 2 5 0530 53 0 69 ...

Page 13: ...e right to alter designs and specifications without prior notice It is dangerous to smoke while handling products made from PTFE Old and new PTFE products must not be incinerated ISO 9001 and ISO14001 Certified details available on request 2021 John Crane 12 21 johncrane com IOM RopacComponent Seals NorthAmerica United States of America Tel 1 847 967 2400 Europe United Kingdom Tel 44 1753 224000 L...

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