Support

Support

Distributor Locator

SpiralTrac™ is distributed worldwide, so wherever you are there's a distributor nearby. Use the form to search by country, or if you are looking for a specific company you can search by name as well. We can also help you locate the closest distributor in your region, send us a quick message and we'll get back to you shortly.

If you are a distributor and you aren't listed, please contact us so we can fix the issue. The information is correct to the best of our knowledge.

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Engineered Solutions

engineered-solutions

EnviroSeal has been in business for over thirty years, and in that time we learned a lot about the industry. Our applications engineers gained unmatched experience in sealing solutions, we have and keep providing support all over the World. The SpiralTrac technology is a very unique product and a definite game changer in the pump sealing industry. Just browse away in our library section among the incredible success stories we collected throughout the years. We know that our product makes a difference so we make each device count.

Our workflow starts with information gathering. A filled out order form can tell us most vital information we need to start production. Each order is evaluated by our engineers and we follow up right away if something seems out of place or unusual. However, an order form is not required. If you get in touch with us about an application, we can ask the right questions. Over the years we have come across countless challenges to know which direction to take, and of course new challenges are always welcome. And though most applications would benefit from the SpiralTrac geometry, if we feel like it wouldn't make a difference we will offer you solutions without SpiralTrac. Over the years customers have come to us with split bushing manufacturing requests, as they know at EnviroSeal they will find a solution. If we can manufacture what you need, we'll make it happen.

Once we have all the info we need, the design process begins. Using professional engineering software, once the design is finalized we can send a visual drawing upon request so you know exactly what you were getting.

We manufacture each device up to 14" diameter in house. Our skilled production staff works with the highest quality standards, and we make sure that each device is within spec. Certificate of compliance can also be requested at no additional cost.

So contact us, you can trust us with your sealing solution.

Literature

Get the information you need in the Literature section. You can find Brochures, Order Forms, Istallation Instructions, Success Stories and more.

Browse Literature

Frequently Asked Questions

General

The SpiralTrac does not rotate. SpiralTrac's patented design creates new and unique flow patterns from existing flows caused by shaft and sealing element rotation.

Generally, a SpiralTrac cannot be used for most latex compounds or latex based paint because the exit groove would be blocked by the material, and the functionality of the SpiralTrac would be degraded as a result.

No, SpiralTrac is designed to operate in a fluid only.

SpiralTrac should not be used in any application where the process is at or near vapor margin.  In this situation, any increase in temperature or decrease in pressure could cause flashing.  Depending on the process, SpiralTrac may slightly change this condition, and we don't recommend taking the risk.

There should be one left-hand rotation device and one right-hand rotation device (either packing or mechanical seal versions).  Direction of rotation is determined from the motor end looking towards the impeller.

The maximum process temperature we recommend is 250oF/120oC.  If your process temperature is higher than this, you should consider using a metal SpiralTrac.

The radial clearance between the shaft and inside diameter of the SpiralTrac is 0.020"-0.040" / 0.51mm -1.02mm.  Upon flooding of the pump, contaminants larger than this size cannot enter the seal cavity.  Contaminants this size or smaller that do enter the seal cavity are easily removed by SpiralTrac.  Should a larger piece of contaminant enter the seal cavity through the flush port, the SpiralTrac will attempt to remove it.  This larger contaminant will be crushed to a smaller size between the shaft and SpiralTrac, resulting in complete removal through the exit groove.

EnviroSeal offers SpiralTrac in a number of materials: ESC (carbon-graphite filled PTFE), GLF (glass-filled PTFE), 416 & 316 stainless steel, bronze, and titanium. The material selection depends on the application and is normally made by the customer to fit the required needs.  Often, the SpiralTrac is constructed of the same material as the pump, and since it is a machined product, it can be made from just about any machineable material. Consult EnviroSeal to determine which is best suited for your application.


Version Specific

Version P Questions

Yes.  Non-split devices are standard, with Type S (Split) devices available at a premium.

  • Flush rates will vary from as little as 8-10 GPH (30-38 LPH) for smaller pumps and up, depending on the application and size of SpiralTrac. Generally:

    • On small-shaft equipment up to 5"/ 127mm, you can immediately reduce your flush rate to 8-10 GPH (30-38 LPH);

    • On large-shaft equipment over 5"/ 127mm, decrease the previous flush rate by 1/2;

      • If no problems are experienced, gradually reduce this flush rate until process begins to leak at the gland follower, or the pump housing becomes too hot to touch.  At this point, increase the flush rate to the last known point where these problems weren't evident.

  • In both cases, the previously recommended flow controller and check valve should be installed.

  • The length of the device is the first consideration:

    • Version F (Type S) SpiralTrac is 1.850" / 46.99mm  in length.

    • Version P SpiralTrac's length is dependent on the width of the lantern ring and the number of rings of packing it's replacing.

  • There are occasions when the axial length of the SpiralTrac is longer than the distance to the first obstruction.  When this occurs, consult EnviroSeal.

MGE, Bearing Grade Peek (BGE) and Bronze devices can be tipically modified for Shaft Support.

The required flush pressure is dependent on the pump seal chamber pressure. Normal flush pressure should be above seal chamber pressure to create a flow. This enables the flush to push any contaminants under the existing throat. Since the important issue is the flow rate, we strongly recommend the use of a flow controller and the installation of a check valve. The check valve will dead head the seal chamber in the event of a flush failure, preventing contaminants from being drawn into the chamber and flush piping.

As this is still a "packed" application, the gland follower would be tightenened just beyond finger tight.  For this reason, double-nuts or lock nuts are recommended.

We recommend a minimum of 3 rings of packing above the SpiralTrac.

We recommend using a grade of packing that can tolerate slightly higher temperatures.  Why?  Since the leakage on the packing is at a controlled "drops-per-minute" rate (due to the greatly reduced flush rate), the packing will sometimes run a little hotter.

These devices are designed to be easily installed in the field where the required upgrades associated with the air vent cannot be done.

  • Typically, any wear is usually under the first two rings of packing, which is in the area that is covered by the SpiralTrac, and unless the wear is excessive, the device will function properly.

  • It is very important that the shaft/sleeve area under the packing behind the SpiralTrac is in perfect condition.

The SpiralTrac Version P has four pre-drilled, threaded holes on the gland side of the device to facilitate the starting of a packing extractor.

No.  At this time, all packing versions of SpiralTrac require a flush to force any contaminants under the existing throat.  We do not recommend or support running these devices flush-free.

There are a number of methods to ensure the SpiralTrac Version P is installed correctly:

  • There is an installation label indicating the impeller side of the device (which should be removed prior to installation!);

  • Rotation direction is engraved on the lantern ring section;

  • The part number is engraved on the impeller end of the SpiralTrac;

  • The tangential hole will inject the flush in the direction of shaft rotation; and,

  • The four pre-drilled and threaded holes that facilitate the removal of the device should be facing the gland.

  • Case (A):  In some cases, yes.  If a 3/4" / 19.05mm cross-section is available, EnviroSeal can design a packing device where the cross-section is reduced and the minimum three rings of packing above can be used, providing a much better sealing solution.  Consult EnviroSeal to discuss your particular application; 

  • Case (B):  A minimum of 1-1/4" / 31.75mm is required to incorporate the SpiralTrac technology into a device.  For example, if the lantern ring is 1" / 25.4mm and there are 5 rings of packing on the gland follower side, SpiralTrac would replace the lantern ring and one ring of packing.  This total length will give us the minimum space required, so a lantern ring in this position does not pose a problem; and,

  • Case (C):  Consult with EnviroSeal.  We've been able to manufacture customized SpiralTracs to replace many different bushing and lantern ring combinations (e.g. common in Warman and Allis-Chalmers SRL pumps).  We may have already designed a SpiralTrac for your arrangement!

No; however, if you are changing the packing, and time is available, you can remove, inspect, clean and reinsert the SpiralTrac before replacing the packing.

No.  For ease of installation, the SpiralTrac Version P is designed to be inserted from the gland side of the stuffing box with a locational clearance fit. The rings of packing above and the gland follower will keep the device in place.

Version N / D / C Questions

No, the seal versions of SpiralTrac are not designed to work with packing. The only SpiralTrac that is specifically designed for packing is the Version P.

  • The Version D and Version N are both used in mechanical seal applications and are installed similarly: however, they differ in the length of the devices and the applications that they are used in.

  • The Version N SpiralTrac is designed to be used in applications where non-fibrous particles such as silt, sand, etc. are typical. Particles of this type separate based on density: thus, heavier particles centrifuge to the bore where the SpiralTrac collects them and moves them out of the seal cavity into the process and away from the seal.

  • The Version D has a double spiral and is therefore longer than the Version N. It was designed for applications where the product is fibrous, such as pulp, corn mash and municipal wastewater applications. The double spiral provides greater capacity to move material out of the seal cavity. A Version D used in an application with non-fibrous particles could prematurely erode the pump and seal as a result of this increased movement of abrasive material. If you are unsure whether you should use a Version N or Version D, please contact EnviroSeal for assistance.

  • The spiral groove always faces the seal and should spiral in the direction of the shaft as viewed from the seal end looking toward the impeller. This will be either clockwise (right-hand rotation) or counterclockwise (left-hand rotation) as viewed from the drive end (typically, ANSI/ISO is clockwise, API is counterclockwise);

  • The part number is engraved on the impeller end of the SpiralTrac;

  • There is an installation label indicating the direction of rotation (which should be removed prior to installation!); and,

  • For SpiralTrac Versions D and N (with an integral air vent), the air vent must be in the 12 o'clock position.

  • Double-ended pumps: There should be one left-hand rotation device and one right-hand rotation device (either packing or mechanical seal versions). Direction of rotation is determined from the motor end looking towards the impeller.

It depends on the application. If solids are removed, there are certain applications where the less expensive and cooler running soft faces can be used where only hard faces were used previously. Consult with EnviroSeal to determine your application's suitability.

The typical clearance between the SpiralTrac and the OD of the shaft is .018" / 0.46mm  radial, but this can vary depending on the size of the device and the material it is made from.

Yes.  SpiralTrac is designed to work with nearly any type or make of mechanical seal.

Absolutely!  The problems associated with air and solids in the cavity are the same with double seals as they are with single seals.  Double seals are expensive, and using SpiralTrac is an excellent, low-cost way of protecting your investment!

The Version D is available in Type I (metals only), Type A, and Type E only.

The Version C is available in Type I only. The drain must have a clear path to the impeller cavity in order to allow trapped product to completely drain from the seal cavity.

Version F Questions

  • The length of the device is the first consideration:

    • Version F (Type S) SpiralTrac is 1.850" / 46.99mm  in length.

    • Version P SpiralTrac's length is dependent on the width of the lantern ring and the number of rings of packing it's replacing.

  • There are occasions when the axial length of the SpiralTrac is longer than the distance to the first obstruction.  When this occurs, consult EnviroSeal.

No, the seal versions of SpiralTrac are not designed to work with packing. The only SpiralTrac that is specifically designed for packing is the Version P.

The required flush pressure is dependent on the pump seal chamber pressure. Normal flush pressure should be above seal chamber pressure to create a flow. This enables the flush to push any contaminants under the existing throat. Since the important issue is the flow rate, we strongly recommend the use of a flow controller and the installation of a check valve. The check valve will dead head the seal chamber in the event of a flush failure, preventing contaminants from being drawn into the chamber and flush piping.

  • The spiral groove always faces the seal and should spiral in the direction of the shaft as viewed from the seal end looking toward the impeller. This will be either clockwise (right-hand rotation) or counterclockwise (left-hand rotation) as viewed from the drive end (typically, ANSI/ISO is clockwise, API is counterclockwise);

  • The part number is engraved on the impeller end of the SpiralTrac;

  • There is an installation label indicating the direction of rotation (which should be removed prior to installation!); and,

  • For SpiralTrac Versions D and N (with an integral air vent), the air vent must be in the 12 o'clock position.

  • Double-ended pumps: There should be one left-hand rotation device and one right-hand rotation device (either packing or mechanical seal versions). Direction of rotation is determined from the motor end looking towards the impeller.

These devices are designed to be easily installed in the field where the required upgrades associated with the air vent cannot be done.

It depends on the application. If solids are removed, there are certain applications where the less expensive and cooler running soft faces can be used where only hard faces were used previously. Consult with EnviroSeal to determine your application's suitability.

Yes.  SpiralTrac is designed to work with nearly any type or make of mechanical seal.

Absolutely!  The problems associated with air and solids in the cavity are the same with double seals as they are with single seals.  Double seals are expensive, and using SpiralTrac is an excellent, low-cost way of protecting your investment!

Adaptor Questions

The turbulence in the seal cavity will not be changed with the standard Adaptor. What is important is to protect the environment around the seal itself, and that is achieved with this design. An option, should you wish to control the turbulence in the seal cavity, is to order the Adaptor with a nose piece that will fill the entire void of the seal cavity. It is important to note that this option can be used only when there is enough first obstruction space available.

The two halves are machined to a polish finish to ensure total face contact when tightened together with the Allen-head bolts that are supplied with each device. As an option, a gasket sealant can be applied to each half for added sealing performance.

The device has been pressure tested to 100 PSI / 689.47 kPa. The typical applications for the Adapter are well within this limit. Should you have a higher pressure application, we suggest you contact EnviroSeal.

The SpiralTrac Adaptor has been designed with a built-in gasket on the face sealing area. If the stuffing box face is in excellent condition, the built-in gasket should provide an effective seal. If the stuffing box face is damaged or eroded, there are options available to you. Firstly, you can insert an o-ring into the o-ring groove that is supplied with all standard configuration Adaptors, or secondly, you can order the Adaptor with a machined gasket groove in the face sealing area so that a flexible gasket can be inserted for an effective seal. For added sealing effectiveness, an appropriate gasket sealant can be used in either case.

Yes. Type S SpiralTrac Adaptors are now available in ESC, Bronze and Stainless Steel.

At this time, all  SpiralTrac Seal Adaptors require sufficient flush pressure to drive a positive flow into the box.  We do not recommend or support running these devices flush-free.

Ask an Expert


Have a question about an application? Need some clarification on SpiralTrac versions or help picking the best material? Our engineering team is here for you. Fill out the form and we can guarantee to get back to you within 24 hours.

You may also call us at +1 (902) 861-3464 Monday - Friday 8 AM - 4:30 PM (ADT).