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Chesterton 442C Installtion, Operation And Maintenance Instructions

Cartridge split mechanical seal
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442 C
™
Split Mechanical Seal
Installation, Operation and Maintenance Instructions
Seal Data Reference
(Insert seal and equipment data here for future reference)
ITEM #
SEAL
(Example: 442C - 50 mm SSC/CB)
INSTALLATION DATE
Cartridge
INSTALLATION, OPERATION and
MAINTENANCE INSTRUCTIONS

TABLE OF CONTENTS

1.0
Cautions .............................................................................2
2.0
Transport and Storage .................................................2
3.0
Description ........................................................................2
3.1 Parts Identification .............................................................2 - 3
3.2 Operating Parameters .............................................................. 3
3.3 Intended Use ........................................................................... 3
3.4 Dimensional Data ...............................................................4 - 5
4.0
Preparation for Installation .................................6 - 8
4.1 Equipment ............................................................................... 6
4.2 442C Cartridge Split Mechanical Seal..................................... 7
5.0
Seal Installation ..................................................... 9 - 11
5.1 442C Installation Video ......................................................... 11
6.0
Commissioning/Equipment Start-up .................. 11
7.0
8.0
Spare Parts .................................................................... 11
9.0
Seal Maintenance and Repair ......................12 - 16
9.1 442C Seal Repair Instruction Video....................................... 16
Hazard Communication Requirements .................................. 16

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Summary of Contents for Chesterton 442C

  • Page 1: Table Of Contents

    3.3 Intended Use ................3 3.4 Dimensional Data ...............4 - 5 Preparation for Installation .........6 - 8 4.1 Equipment ................6 4.2 442C Cartridge Split Mechanical Seal........7 Seal Installation ............. 9 - 11 5.1 442C Installation Video ............11 Commissioning/Equipment Start-up ....11 Decommissioning/Equipment Shut Down ..

  • Page 2: Cautions

    These decisions are to be made by the user. The decision to use this seal or any other Chesterton seal in a particular service is the customer’s responsibility. TRANSPORT AND STORAGE Transport and store seals in their original packaging.

  • Page 3: Parts Identification

    (710 mm Hg /28") to the maximum pressures at the application and/or outside the operating parameters, consult conditions listed. Chesterton to confirm the suitability of the mechanical seal prior to putting the mechanical seal in operation. Small Sizes: 25 mm through 60 mm (1.000" through 2.500") Reaction Bonded Silicon Carbide/Carbon –...

  • Page 4: Dimensional Data

    DESCRIPTION cont. 3.4 Dimensional Data (Drawings) Figure 3 P NPT P NPT KEY (chart) A – Shaft Size B – Max. Gland Dia. Table 1 – Dimensional Data (Metric and Inch) C – Min./Max. Stuffing Box Dia. D – Gland Length HOLDER SHAFT SLEEVE...

  • Page 5: Dimensional Data

    DESCRIPTION cont. Table 2 – Dimensional Data METRIC - Millimeters G MIN 8 mm 10 mm 12 mm 14 mm 16 mm 18 mm 20 mm 25,0 125,5 47,2 53,3 40,1 47,8 79,8 81,8 83,8 85,8 87,8 59,9 70,9 30,0 125,5 47,2 53,3...

  • Page 6: Preparation For Installation

    PREPARATION FOR INSTALLATION 4.1 Equipment < ø < .005" 0,13 mm 125 µ" 3,2 µm ø If practical, place the dial indicator tip on the end of the shaft If possible, attach a base dial indicator to the shaft and rotate sleeve or on a step in the shaft to measure end play.

  • Page 7: 442C Cartridge Split Mechanical Seal

    PREPARATION FOR INSTALLATION cont. 4.2 442C Cartridge Split Mechanical Seal Review seal packaging ensuring no damage or shortage has occurred to the contents. Review the seal fit dimensions in Tables 1 and 2 to ensure the equipment to be sealed has the required dimensions.
  • Page 8 PREPARATION FOR INSTALLATION cont. Shipping Spacer Assembly Remove seal from packaging and place on Disengage rotary holder screws and separate Important! Remove entire shipping spacer clean work surface. Ensure installation spacers rotary holder halves. assembly from each holder half by pulling on tab; retain for future use.

  • Page 9: Seal Installation

    SEAL INSTALLATION Equipment shaft should be cleaned and greased Bring rotary holder assembly halves together Use hex wrench and alternately tighten holder prior to rotary holder installation. Apply supplied over shaft, engaging the pins. Caution: DO NOT cap screws to finger-tightness to allow holder grease only to face splits.
  • Page 10 5.0 SEAL INSTALLATION cont. Installation Tool 90° Clean stationary face with cleaning wipe, Position the gland splits approximately 90 Bring the first gland half squarely into position by ensuring that there is no debris at splits. degrees from the rotary holder splits. sliding the gland gasket face against the gland installation tool, ensuring the stationary face does not make contact with the rotary face.

  • Page 11: 442C Installation Video

    Ensure that the pump is isolated and check that the stuffing box is drained from any fluid and pressure is fully released. Disassemble the 442C split seal and remove from equipment in the reverse order from installation instructions.

  • Page 12: Seal Maintenance And Repair

    SEAL MAINTENANCE AND REPAIR A correctly installed and operated mechanical seal requires little • Small pliers (remove centering buttons) maintenance. It is recommended to periodically check the seal for • Small, flat-head screwdriver (set spring lifter location) leakage. Wearing components of a mechanical seal such as seal faces, O-Ring, etc., require replacement over time.
  • Page 13 SEAL MAINTENANCE AND REPAIR cont. Remove used spring retainers from gland Remove used stationary face O-Ring. Remove used stuffing box gasket from gland halves. Note: When last retainer is removed the recess and all adhesive residue with cleaning stationary seal ring can be removed solvent.
  • Page 14 SEAL MAINTENANCE AND REPAIR cont. Ensure that the rotary face O-Ring ends are Apply a thin film of grease and install rotary face Install rotary face halves in rotary holder halves. flush, not below, with the face splits. Push on O-Ring halves in rotary holder halves.
  • Page 15 SEAL MAINTENANCE AND REPAIR cont. Install new gland cap screws in gland halves. Apply a thin film of grease to the stationary face Install stationary face halves into gland halves. Note: Gland cap screws are installed in one end O-Ring halves and install in gland halves; Ensure of each gland half, in the ends away from the that O-Ring splits are protruding evenly on both mounting bolt slot.

  • Page 16: 442C Seal Repair Instruction Video

    SEAL MAINTENANCE AND REPAIR cont. 9.1 442C SEAL REPAIR INSTRUCTION VIDEO To view an instructional video on how to repair the 442C, please scan the QR Code with your mobile device or go to our web page at www.chesterton.com/442C_Videos and click on the desired video.

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