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4.0   PREPARATION FOR INSTALLATION cont.

4.2  Mechanical Seal

1. 

CAUTION:

 The 1/4 dog point set screws go into the small 

holes in the sleeve. Do not disengage these screws from the 

sleeve when positioning the seal. Make sure all screws are 

engaged in the sleeve but do not protrude into the ID bore. 

Also, when repositioning or removing the seal, make sure the 

centering clips and socket head cap screws are engaged.

2. Centering clips have been preset at the factory. If for 

any reason you loosen or remove the centering clip cap 

screw, retighten as follows prior to installing the seal on the 

equipment: Tighten the cap screw finger tight. Then using 

hex wrench, tighten cap screw an additional 1/8 turn. This will 

approximate the 3,4 Nm (30 inch-pounds) of torque for sizes 

45-60 mm (1.75" to 2 1/2"), and 4,5 Nm (40 inch-pounds) of 

torque for 65-120 mm (2 5/8" to 4 3/4") set at the factory. For 

sizes 25-43 mm (1" to 1.625") tighten the button head screws 

to 2,3 Nm (20 inch-pounds) of torque.

5.0   SEAL INSTALLATION

1

Remove seal from packaging and 

place on clean work surface.

IMPORTANT:

 Remove eye bolts  

(if present) prior to installation.

5

Tighten lock ring bolt as specified in 

Table 1

.  

Reassemble the equipment. Make 

all necessary equipment and 

impeller adjustments.

7

Turn the clips 180° from their 

original position.

6

Loosen the hex head cap screws 

attached to the centering clips.

4

Tighten gland bolts as specified in 

Table 1 

(page 8). 

*Only applicable for bolted gland 

configuration 85mm-180mm*

8

Retighten the cap screws (to hold 

clips in place).

3a

Apply a thin film of grease (provided 

with seal) on the shaft. Slide seal 

onto the shaft.

3b

Reinstall Frame plate (customer 

supplied).

2

Install Gland O-Ring into equipment 

prior to seal installation.

Содержание 170L

Страница 1: ... Transport and Storage 2 3 0 Description 2 3 1 Parts Identification 2 3 2 Operating Parameters 3 3 3 Intended Use 3 3 4 Pump Frame Size Availability Data 4 3 5 Clamped Gland Configuration 5 3 6 Bolted Gland Configuration 5 4 0 Preparation for Installation 6 4 1 Equipment 6 4 2 Mechanical Seal 7 5 0 Seal Installation 7 6 0 Commissioning Equipment Start up 8 7 0 Decommissioning Equipment Shut Down 8...

Страница 2: ...e Dust free environment Do not touch the mechanical seal for any reason while it is operating Lockout or uncouple the driver prior to personnel contact with the seal Do not touch the mechanical seal while it is in contact with hot or cold fluids Ensure that all the mechanical seal materials are compatible with the process fluid This will prevent possible personal injury Moderately ventilated at ro...

Страница 3: ... Seal Ring 3 Rotary Gasket 4 Sleeve Assembly 5 Lock Ring Assembly 6 Pusher 7 Gland 8 Centering Clip 9 Centering Clip Spacer 10 Hex Screw 11 Spring 12 Shoulder Screw 13 Washer 14 Shaft O Ring 15 Rotary O Ring 16 Stationary O Ring 17 Pipe Plug 18 Dog Point Set Screw 19 TORX Socket Head Cap Screw 20 SpiralTrac Optional ...

Страница 4: ...220 mm 12 m s 2400 FPM Consult Seal Applications Engineering for higher applications Temperature Limits Elastomers To 150 C 300 F EPDM To 205 C 400 F FEPM FKM To 260 C 500 F FFKM Standard Materials All Metal Parts 316 SS EN 1 4401 A2205 EN 3 017 Springs Alloy C276 EN 2 4819 Rotary Face SSC TC Stationary Face SSC TC Elastomers EPDM FEPM FKM FFKM Other materials available upon request 3 3 Intended U...

Страница 5: ...5 3 6 Bolted Gland Configuration 3 0 DESCRIPTION cont 3 5 Clamped Gland Configuration ...

Страница 6: ...t should not exceed 0 005 mm TIR per mm 005 in per inch of shaft diameter If possible attach a base dial indicator to the shaft and rotate both the indicator and shaft slowly while reading the runout of the stuffing box face Misalignment of the stuffing box face relative to the shaft should not exceed 0 005 mm TIR per mm 005 in per inch of shaft diameter The stuffing box face must be flat and smoo...

Страница 7: ... sizes 45 60 mm 1 75 to 2 1 2 and 4 5 Nm 40 inch pounds of torque for 65 120 mm 2 5 8 to 4 3 4 set at the factory For sizes 25 43 mm 1 to 1 625 tighten the button head screws to 2 3 Nm 20 inch pounds of torque 5 0 SEAL INSTALLATION 1 Remove seal from packaging and place on clean work surface IMPORTANT Remove eye bolts if present prior to installation 5 Tighten lock ring bolt as specified in Table ...

Страница 8: ...ated and check that the stuffing box is drained from any fluid and pressure is fully released Reposition centering clips prior to removing the seal from equipment Disassemble the seal and remove from equipment in the reverse order from installation instructions Incase of disposal ensure the local regulations and requirements for disposal or recycling of the different components in the seal are adh...

Страница 9: ...aintenance A correctly installed and operated mechanical seal requires little maintenance It is recommended to periodically check the seal for leakage Wearing components of a mechanical seal such as seal faces O Ring etc require replacement over time While a seal is installed and operating maintenance is not possible Therefore it is recommended that a spare seal unit or a spare parts kit be held i...

Страница 10: ...grease to the rotary O Ring and install in the rotary seal face outside diameter groove 17 12 Remove shaft O Ring from sleeve inside diameter and discard 13 Clean all metal components with approved solvent Remove spare parts kit components from packaging and place on a clean work surface NOTE Leave the two largest O Rings packaged for size identification 14 10 Remove O Ring from gland inside diame...

Страница 11: ...lip hex screws 31 30 Press down on gland assembly and rotate centering clips to engage under the lock ring 24 Insert shoulder screws with washers into springs and install in pusher holes Tighten shoulder screws evenly in a crisscross pattern and until they bottom out Flip the gland assembly and carefully slide the gland over the sleeve until the seal faces are mated Install dog point and TORX scre...

Страница 12: ...n com 2018 A W Chesterton Company Registered trademark owned by A W Chesterton Company in USA and other countries Chesterton ISO certificates available on www chesterton com corporate iso DISTRIBUTED BY 45 34 Seal is now ready for installation Install gland O Ring prior to seal installation does not apply to all sizes 33 ...

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