PFC News - Volume 7
June-July 2003

Welcome to PFC News!
In this issue you’ll find:

New Product: Hydra-Cell Sealless Diaphragm-Style Pressure-Regulation Valve
New Product Highlight: Fybroc
Shop Talk
Did you know...
Company Highlight: Dean
Employee Profile
Maintenance Tips
PFC Quiz

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Past Issues
June - July 2003
April - May 2003
February - March 2003
December - January 2003
October-November 2002
August-September 2002
June-July 2002


Congratulations to Scotty Andrews of Tiro Industries who was last edition's quiz winner! Thank you to all of those who entered our contest.

#1 What materials of construction are available for the C-62 series valve?
#2 Up to what temperature of hot oil can a Dean Pump pump?
#3 Where is the PFC Equipment Clean Room located in the building
#4 What separates the air chambers in an AOD pump?

Submit your answers to http://www.pfcequip.com/quiz.html or email sales@pfcequip.com or fax to 763-425-1132.

All correct submissions will be placed in a drawing for this issue's giveaway.




New Product...Fybroc

Fybroc is the world's most complete line of non-metallic, fiberglass reinforced, thermoset vinyl ester/epoxy pumps for handling corrosive and other difficult liquids. As the first company to develop fiberglass reinforced pumps in 1966, Fybroc has continued to focus on non-metallic pumps as their only business.

The fiberglass components in Fybroc pumps are produced using a Resin Transfer Molding (RTM) process. The major advantage of this process is that it allows for the controlled placement of long strand fiberglass reinforcement in high stress areas. These components have excellent physical properties, which allow for the design of thinner-walled structures, and in turn permitting the use of nearly pure resin systems for optimum corrosion resistance. Ordinary compression molding methods used by our competitors utilize chopped glass random reinforcement that provides comparatively lower strength characteristics. In addition, the inherent physical properties of this technique and the exothermic properties of the highest quality resins force the inclusion of large amounts of clay filler in the bulk molding compound. These fillers detract from the corrosion resistance of the base resin and certainly adds no strength to the components.

While the compression molding approach sacrifices both corrosion resistance and strength, the Fybroc RTM method optimizes both. Traditional markets served by Fybroc pumps include, chemical process, electric utilities, electronics, pulp & paper, metal finishing, scrubbers, aquariums, waste treatment and food processing. Typical applications include, acids, bleach, caustic, saltwater, industrial wastewater, solvents and high concentration sulfuric acid. The Fybroc pump line includes horizontal base-mounted ANSI and close- coupled, self-priming base-mounted and close-coupled, close-coupled mag-drive and vertical and cantilever configurations.

What are the advantages of buying a Fybroc pump?

  • Over 30 years of experience
  • FRP centrifugal pump are our only business
  • Broadest range of available sizes, types and materials for FRP centrifugal pumps
  • Superior manufacturing techniques/RTM
  • Flexibility to meet a broad range of customer requirements
  • Shortest lead times in the industry
  • Best value at a competitive price

Contact PFC Equipment to inquire about Fybroc pumps in your application!




Did You Know?
  • Pumps can be classified into two basic groups: kinetic and positive displacement.
  • The most common kinetic pump is centrifugal
  • Common positive displacements pumps are gear, lobe, diaphragm and progressing cavity.
  • PFC Equipment offers on-site service, repair and preventative maintenance programs.
  • Teikuko of Japan recently acquired Crane Canned Motor Pumps from Crane Pumps & Systems.
  • Yamada suction and discharge manifolds can be split so that you can pump two liquids at the same time without cross contamination.
  • PFC Equipment offers EDI ordering, invoice processing and payment.
  • General Electric has acquired Osmonics, a manufacturer of equipment and components for a variety of fluid handling applications.

Wayne Arenkiel - Purchasing Manager

Wayne Arenkiel, an eight-year veteran of PFC Equipment, has had the luxury of learning multiple aspects of our business before moving into his current position of Purchasing Manager.

Because Wayne worked in our shop/service center in the beginning of his tenure, he was able to learn hands-on how fluid-handling equipment works. This in-service knowledge coupled with his initiative to learn, helped Wayne move into inside sales. After a three-year stint as an Application Engineer, Wayne was ready to move into a more challenging role as Purchasing Manager. In this position, Wayne's responsibility covers not only product buying, but also our inventory levels and warehouse management. This unique conversion of experience, responsibilities and enthusiasm bodes very well for PFC Equipment and our customers.

When Wayne is not hard at work, he can be seen on a lake in his boat with his family near-by or playing softball or golf. If you need an entrant for your next golf outing, contact Wayne and he will be happy to attend.




Hydra-Cell Sealless Diaphragm-Style Pressure-Regulation Valve

Ideal for High Pressure, Dirty Fluid Applications

C62 Series Hydra-Cell Industrial Diaphragm Valves from Wanner Engineering Inc. feature a sealless, flow-through design that reduces wear on internal parts for longer valve life. These valves bypass system fluid to prevent excess system pressure. When a system discharge is completely closed - such as a closed spray gun, closed valve or plugged nozzle - the Hydra-Cell valve bypasses the total system fluid flow. They also balance system pressure for multiple-gun operations.

These valves feature heavy-duty industrial construction and immediate response, and can be used with any positive displacement pump. Their innovative diaphragm design eliminates the need for valve plunger seals - a troublesome component of most regulating valves. These valves also have no troublesome external springs or moving parts. Additional features include accurate and repeatable flow, minimal pressure surge and smooth, chatter-free bypass.

These valves can be configured to provide optimum performance in your specific application. Available materials of construction include brass, 316 stainless steel, and nickel alloy. Valve seats and plungers are available in Hastelloy C, 17-4 stainless steel and 316 stainless steel.

How it works
The Hydra-Cell C62 valve design is simple, and consists of a tapered plunger with an attached diaphragm. When excess pressure overcomes the adjustable spring pressure on the plunger, the plunger lifts the valve seat allowing fluid to bypass and reduce system pressure. When a C62 valve is mounted in the discharge line, its modified flow-through design reduces plunger and seat wear.

Hydra-Cell valves are some of the easiest to service too! They can be serviced in place without removing any fittings or plumbing - simply remove the top of the valve and replace the worn internal components! Contact PFC Equipment for more information on Hydra-Cell valves.




Dean

Dean Pump Division is recognized world wide for high quality pumps that handle a broad range of industrial applications for the chemical, petrochemical, refining, pharmaceutical, plastics, pulp and paper, and food processing industries.

For more than 130 years, Dean Pump has been recognized as the industry leader in developing pumps for high temperature liquids. Over the years, Dean's design and manufacturing expertise has evolved from steam-driven hot water pumps in 1869 to the development of the first hot oil pump for the emerging process industry in 1931. Since that time, Dean Pump has provided rugged, service tested equipment, which has set the industry standard for performance and reliability.

Today Dean Pump offers pumps capable of pumping thermal fluids up to 850° F. Dean recently introduced an improved RA series design capable of pumping hot oil up to 650° F without the need of any supplemental external cooling. These designs represent today's highest available quality and most cost-effective means of pumping heat transfer fluids. They are used in a host of processes including:

The Chemical Industry — heating of agitators, reactors, drying plants, polymerization plants. Plants for conveying highly viscous products and producing plastic material and synthetic fibers.

The Rubber & Plastic Industry — Heating of calendars, melting pots, automatic injection molding machines and power presses.

The Food Industry -— Heating of baking and fish frying ovens, rendering plants, distillation of fatty acids and glycerin and production of milk powder and potato chips.

The Paper Industry & Laundries — Calendar rolls, production of corrugated cardboard, heating of laundry machines and industrial ironers.

Dean also offers a wide range of pumps for various industrial applications that include vertical inline, ANSI horizontal and self-priming, and magnetically driven designs. Quality construction, combined with design features normally found in much higher priced pumps, provide maximum service life and hydraulic coverage. Contact PFC Equipment to find out how to fulfill your most demanding industrial pumping needs today using Dean Pumps





How an AOD Pump Works

John Armitage, Product Engineer, Price, Pump Company

The general principle behind AOD, pumps is to transfer fluid through the pump by means of a user supplied source of compressed air. The AOD, pump consists of suction and discharge manifolds, suction and discharge ball valves, liquid and air chambers. The air chambers are separated by diaphragms, which are in turn, connected by a common shaft. The final and most important component is the air distribution system. The compressed air is directed into the air valve. Through a series of passages, the air is directed into one of the air chambers. As one air chamber fills with air, the diaphragm in that chamber will begin to expand into the pump chamber, displacing the fluid in that pump chamber past the discharge valve into the discharge manifold. Conversely, the shaft that is connected to the opposing diaphragm pulls it into its own air chamber. This creates a vacuum in the pump chamber, which "pulls" the fluid past the suction valve and into the pump chamber. As the pump chamber reaches its maximum capacity, the diaphragm will trigger a switch, which reverses the air-flow to the opposite chamber and the process is repeated. The two pump chambers are always simultaneously in opposing cycles of the stroke: one is always discharging fluid while the other is in the suction cycle. This continuous redirecting of the compressed air causes the reciprocating motion of the diaphragms, which results in pumping of the process fluid.

The basic design of AOD, pumps, offers many advantages over other pumping alternatives. Because the driving force of the pumps is compressed air, the pumps do not require complex electrical and/or electronic controls to install and operate. The pumps handle a wide variety of fluids ranging from very high to low viscosity, to those that are corrosive and/or abrasive. They also have the ability to pump low-density powders and can pass fairly large solids. AOD, pumps do not "shear" the fluid during transfer, so they are ideal for handling shear-sensitive media such as foods, paints and inks where fluid consistency needs to be maintained. Due to the diaphragms being fixed at the outer diameter bead, the pumps have static sealing surfaces and do not require mechanical seals. They are self-priming with lifts greater than 20 feet, and can run dry or against a closed discharge without damage. In some cases, they can even be run while completely submerged in the process fluid. For applications where performance needs to be varied, the pumps offer an infinitely variable flow rate without the need of a variable speed motor. Just by varying air inlet pressure the performance of the pump can be adjusted to suit the application. AOD, pumps are portable and because of their quick and easy installation, they are easily transferable from site to site. Couple all of this with their ease of repair and maintenance, and you begin to see why AOD, pumps have remained an industry favorite.

PFC Equipment can answer all of your AOD questions, contact our application engineers!




PFC Equipment is continually researching new equipment, products and services to better respond to our customers' requirements. One way of addressing our customers' needs is the Clean Room we built four years ago to meet the production requirements for a major supplier of semiconductor equipment.

The semiconductor industry has a very stringent requirement for cleanliness of production equipment. For several years PFC has been a key supplier for high purity Teflon products into this industry. One of our customers was modifying standard pumps and dampeners supplied by PFC. To help this customer lower the cost of using these products and to streamline the supply line, PFC Equipment proposed modifying the products in-house. In order to minimize any possibility contamination of the products during modification, PFC built a separate repair and re-work area.

PFC's clean room is located on the second floor of our 20,000 SF building. The room is separated by two lockable doors from the rest of the building. The first door leads to a changing and staging area. After clean-room gowns, hairnets and booties are donned, employees enter the actual clean room and production area. The equipment in this area consists of HEPA air filter, two test and production benches, a 1 megohm DI water loop, an 18 megohm DI water loop and waste containment tank. The 18 megohm water loop is piped in high-purity PFA tubing to assure water quality. Both water loops are monitored by a Thornton dual-band conductivity monitor.

The clean room is just another one of PFC Equipment's innovative solutions to better meet our customers' requirements.