RD Dry-Running Mechanical Seal Update

In our original post about our dry-running RD seal we mentioned that the next generation would be fully ASME BPE compliant as a standard, unlike seals from other manufacturers: http://sharpemixers.blogspot.com/2009/07/next-generation-dry-running-mechanical.html. We introduced new grades of elastomers for specific use in high end biopharm applications. These elastomers meet or exceed the requirements of USP grade materials. The seal elastomers have the following properties:

• Available in EPDM (standard), FPM (Viton®^a equivalent⁾, Silicone, & FFPM (Kalrez®^a equivalent⁾.



• Full traceability



• Properly postcured



• Contain no ingredients derived from animals



• Free from melamine and mercury



• Complies with the FDA Code of Federal Regulations for rubber and rubber-like materials under Title 21, Paragraph 177.2600.



• Complies with the 3-A Sanitary Standards for rubber and rubber-like materials used as product contact surfaces in dairy equipment, number 18-03, Class II.



• Compound has passed testing in accordance with the current USP section <87> and <88> Class VI – 121°C or ISO/AAMI/ANSI 10993-5, 6, 10 and 11.

The seal has gone through some design changes as well to better meet the requirements of BPE:

· The ID of the debris well is tapered for drainability.

· The debris well flush ports are angled for drainability.

· Debris well gasket has been replaced by an o-ring which mounts close to the flange hole.

· Heat number for wetted metal parts are etched on the parts.

· Silicone Carbide (standard) and Tungsten Carbide static faces are available, as well as Hastelloy® ^b C-276 & AL-6XN®^c metal parts.

· Various finishes, including electropolish & passivation are available.

a - Viton® & Kalrez® are the registered trademarks of DuPont Performance Elastomers.

b - Hastelloy® is a registered trademark of Haynes International, Inc.

c - AL-6XN® is a registered trademark of Allegheny Ludlum Corp.

Spare Drives for Municipality

Down times are often not an option for many of our customers. Does this hold true for you?

Recently, a water treatment facility recognized that their floculator mixers had been in service for over a decade. Due to the critical nature of their operation, they realized they should have spare drives on hand to minimize any possible down time.

Sharpe Mixers received an order for 22 spare mixer drives, and went to work immediately to provide them in the best possible delivery time. Not only did we meet the delivery date, we beat it by 10 days!

How can we help you with your spare part needs? Contact us today and let us know!

Electric or Air Powered Stainless Mixer Stands

Our line of electric and air powered stainless mixer stands have really taken off in popularity. These stands are a result of uncompromising demands for quality and versitality. The modular construction offers simple and precise adjustment for various applications. The stands are constructed in SS316, and available in 36", 48" and 60" sizes.

Be sure and check out our latest product release in Processing magazine. Brochures can be downloaded directly from our web site at www.sharpemixers.com.

Excluder Seal Kits

Excluder seals are a type of lip seal that actually rotates with the shaft. The skirt extends out and slightly downward to seal small tank openings.

Sharpe Mixers' excluder seal kits have really gained in popularity over the last couple of years, especially in the food industry. Seals are are available in almost any size from 1.0" to 6.63" as a standard. They are available in both Buna N and Viton material.

Buna excluder seal kits are our most popular, and suitable for most applications. They are stocked and available for quick shipment (excluding large quantity orders).

Viton excluder seal kits are designed for higher temperature applications, and can ship in 1-2 weeks.

For more information, visit our web site at http://www.sharpemixers.com/!

Expedited Shipments

At Sharpe Mixers, we enjoy the flexibility to work with our valued customers in expediting important ship dates when necessary. Let's face it, even with the best planning, emergencies can still pop up from time to time. Suddenly a standard shipment schedule isn't good enough to meet our customer's needs.

How do we help our customers to meet critical deadlines in such emergencies? We expedite! Most often, we can improve ship dates with an additional fee. This allows us to authorize overtime in engineering and production to get the job done, without affecting other jobs in house.

The mixer pictured here is going into a crystalizer feed tank. It's a special impeller and includes Hasetelloy C276 wetted parts. Special alloys can add to lead times, and require longer fabrication times. Standard delivery on such a mixer would be 10-12 weeks.

In this case, we promised delivery in 6 weeks - and delivered in 5! That's right, we beat our own estimate by a full week!

How can we help you?

Impellers, Impellers, Impellers!

Recently we accepted a large order for impellers and steady bearing assemblies from a large food producer. However, it wasn't without its challenges. The task? To manufacture 30 large hydrofoil style impellers and 6 steady bearing assemblies in only 10 days. This would require over 140 hours of blade forming and fabrication hours - a huge task! We completed the job in just 9 days - one day sooner than promised!

Pictured here are the first 12 completed impellers. They will next be cleaned up for appearance and go through a rigorous inspection process by an engineer before being released for final packaging and shipment.

How can we help you with your RUSH needs? Let us know!

Agitation in the Water & Wastewater Treatment Industry

The water & wastewater treatment industries offer many applications for agitation equipment. Both industrial and municipal plants require mixing equipment for many of their treatment processes. Potable water, boiler water, process water, wastewater are some examples.

Sharpe Mixers offers mechanical agitators for use in the many applications where liquid mixing is required.

The wide-ranging scope of products can handle mixing volumes from 50-gallon drums through multi-million gallon holding tanks.

Some examples of applications include
Chemical make-up and storage
Polymers, Lime slurry, Magnesium Hydroxide, carbon slurry, process water aids
Influent-Effluent Rapid Mixing
Chemical addition in high rate continuous systems
Sludge Blending and Storage
Polymer-sludge blending with the patented SimFlocc high-speed in-line blender
Slow speed low shear mixing for sludge storage
Equalization
Side entry agitators installed on large influent equalization tanks
Neutralization & pH control
Rapid addition and blending of pH adjustment chemicals
Anoxic and Anaerobic Mixing
Provide mild agitation without aeration using Up-Flow HYLFO hydrofoils
Flocculation
Slow Speed top entry agitators equipped with low shear HYFLO hydrofoil impellers and variable speed drives are the state of the art for municipal water treatment plants.
Filtration Backwash
Filtration media is washed for re-cycle.

The Sharpe Mixers product line ranges from fractional horsepower clamp-on portable mixers up to 300 hp top and side entry agitators. A wide variety of drive configurations are offered, including helical and worm gear reducers and v-belt drives. Various motor types and variable speed drive options are available. Wetted parts are available in a wide variety of materials such as SS316, Duplex Stainless Steels, plastic and rubber coatings.