Pump Shaft Seals

Face Materials

Pump Seals come in a wide range of designs however the most important factor.

Face Materials

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In-line Pump Seals

The term In-line seals simply refers to seals that are mounted to a shaft or sleeve.

In-line Pump Seals

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Metal Bellows

Metal bellows mechanical seals feature a bellows core made of one of several types...

Metal Bellows

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PTFE Pump Seals

Mechanical seals often need to be used in chemical applications.

PTFE Pump Seals

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Mixer and Agitator Pump Seals

 

Mixers and agitators require more from a mechanical seal. They require that a seal maintain the seal while moving in two directions. Yes, the mixer seal must rotate, but it also must move with a shaft that has mixer shaft runout ( If the run-out is greater than 0.005" a seal designed for higher run-out should be considered).

Because most mixers or agitators are mounted on top or on the side of a vessel the long shaft being used to mix or agitate often will have run out.  The longer the shaft the bigger the Problem. Ideally a seal should be mounted as closely to the bearings as possible, but this is not always possible. Like cartridge seals, mixer seals can have one or two seal faces. Creating a seal that can handle runout, but must have seal faces has many limitations for runout accomidation. We have appraohed it differently by sharing one seal face the rotaing faces can be on the same plain. Our type 19 is unique and very effective.

If conventional double seal with environmental controls are utilized  caution must be taken to be certain enough lubrication is provided without contamination of the product being mixed.

Not all mixers require a double seal or enviromental controls. For our single outside mixer seal applications we offer the Sepco OMS (Outside Mixer Seal). This mixer seal is capable of handling up to 1/4" shaft deflection.

Single Mixer Seal
Mixer and Agitator Seal

 

Style 19 Features

• Preassembled, easy installation

• Withstand shaft run-out

• Springs are isolated from product

• Non-fretting static 0-ring

• Spring design minimizes vibration and harmonic problems

• No depth required in the stuffing box

• Adding a closed loop flush system prevents contamination

• Pressure tested

 

 

 

If you have any questions please contact us at:  E-mail about your pump seals applications.

Phone: 714-593-9780

Fax: 714-593-9701