Manual Plastic Butterfly Valves

The butterfly valves are the first valve designed exclusively for the pool service industry. This cost-effective butterfly valve can be completely submerged in chlorinated water. The unique blue handle identifies that this butterfly valve is ideally suited for use in chlorinated water applications. The butterfly valve’s durable PVC-constructed body provides superior corrosion resistance and weighs less than similar valves made of metal.

The butterfly valve provides exceptional, reliable performance, and is virtually maintenance-free. Easy to install, the butterfly valve’s self-gasketing seat design eliminates the need for mating flange gaskets. The butterfly valve comes with an ISO mounting pad, allowing for easy field-mounting of accessory options, including stem extensions, gear operators, and electric or pneumatic actuation.

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Valves and Controls: ball valves, butterfly valves, gate valves

Flow Line Valve and Controls, L.L.C. manufactures a wide range of high quality valve and actuator products for today’s diversified market place. We beginning approach was to start from the ground up and design a valve and actuator product line that encompasses all the latest industry standards, advanced engineering, and manufacturing techniques.

Product types include Ball Valves, Butterfly Valves, Gate Valves, Globe Valves, Check Valves, and a complete line of Pneumatic and Electric Actuators, with an accompanying line of Automation Accessories. We have a large and extensive based inventory, which utilizes a highly trained and motivated sales force dedicated to bringing our valve and automation products to our customers with the highest level of quality and service possible.

Our extensive line of butterfly valves range from resilient seated 1” to 84,” PTFE seated 1” to 24,” high performance 2” to 24,” triple offsets 2” to 24.” An extended variety of valve trim designates our inventory to be the most versatile butterfly valve inventory on the market. ISO 5211 mounting is standard throughout the product offering.

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Butterfly Valves for Craft Brewing Applications

20170508What could be better than sampling beer at a craft brewery on a beautiful Friday afternoon at the Jersey shore. Some would call it playing hooky but I prefer to call it building a good customer relationship. Consisting of a production facility, retail shop and tap room, Beach Haus Brewery is the perfect destination for a sunny summer afternoon.

Sitting on the corner of Main St. and 8th Ave, the site of the former Freedman Bakery in downtown Belmar NJ, this brewery is an impressive mix of new and old, glass and reclaimed wood, with a laid back Jersey Shore atmosphere.

The brainchild of Brian Ciriaco and John ‘Merk’ Merklin, Beach Haus had its beginnings in a garage in Brick, NJ in 2007. Tom Pryzborwski soon joined the team as head brewer and their first beer, Beach Haus® Classic American Pilsner, was developed reflecting the taste preference of the Jersey shore.

Chris McCallion another Jersey shore resident became a partner in 2009 and by 2010 Beach Haus® Classic American Pilsner was being sold through local NJ distributors. Within 2 years, Beach Haus® Winter Rental, Kick Back Amber Ale and Cruiser IPA were released and distributed throughout NJ, Pennsylvania, Connecticut, New York and Delaware.

In 2013 the partners purchased a building that housed the Freedman Bakery, a destination for residents and vacationers since the 1950’s, noting that the transition from bakery to brewery was fairly easy given the facility already contained a production area and was capable of handling large equipment and deliveries.

Structural changes had to be made to convert the bakery into a brewery but a real effort was made to keep some of the building’s history intact. The flooring, bar top, and tables in the tap room are constructed of wood reclaimed from the bakery; as is the Beach Haus sign crafted by a local artist and prominently displayed over the taproom bar. The brewery opened its doors to the public in the spring of 2015 and is enjoying great success.

We showed up unannounced on a Friday afternoon and true to the beachy laid back style reflected in the brewery, we were quickly offered a tour. Our tour guide ended up being one of the original founders, John Merklin.

We explained that our company, Assured Automation supplied over 20 automated butterfly valve assemblies to the design firm that engineered the 30 BBL, 4-Vessel brew house. John was soon called away but the very capable Dylan Kohan shared the details of the brewing process.

The Brewing Process:

The process begins at the hopper and super sack where bags of specialty and bulk grains enter the system and move into the roller mill where they are crushed and then sent to the grist tank where they sit overnight.

The milled grains, typically malted barley and supplementary grains, are then transferred to the mash mixer where the initial brewing activity begins. The grains are mixed with warm water to extract their natural colors, flavors and sugars. This mashing process allows the enzymes in the malt to convert the starch in the grains into sugars, typically maltose, to create a malty liquid called wort.

The wort is separated from the spent grains during the two stage lautering process that occurs in the Lauter tun. Being ecologically minded, the spent grains are saved for a local farmer who feeds them to his livestock.

In the wort kettle, the wort is brought to a boil; hops and other flavorings are then added and held at a rolling boil for 45 to 90 minutes. Many important chemical reactions occur during this stage; hop flavors are released, bitterness and aroma compounds are developed and the wort becomes concentrated. At the end of this boil, the trub or solid hop particles are separated out of the wort in the whirlpool.

After the wort passes through the wort chiller it goes into a fermentation tank where yeast is added and fermentation begins. The sugar from the malt is converted into alcohol and carbon dioxide and the product finally can be called beer. The beer is then filtered to remove yeast and other solids and piped into the brite tank where carbonation is added and the final product is achieved.

This article comes from assured-automation edit released

Application Considerations for Butterfly Valves

1. It is noted that the disc of butterfly valve is unguided; therefore, operability of the valve is affected by the flow characteristics. A butterfly valve should not be located just downstream of a source of flow turbulence, such as pump-discharge nozzle, elbow, control valve, or a tee-branch. To minimize the effects of flow turbulence on the valve, attempts should be made to

● Locate the valve 4 to 6 diameters downstream of the source of flow turbulence.

● Orient the valve shaft in the same plane as the elbow or the pump outlet configuration. When there is more than one component on the upstream side of the valve, then the component adjacent to the valve is to be considered in determining the valve-shaft orientation.

2. When used in throttling applications, an attempt must be made to provide an adequate straight length of pipe downstream of the valve to allow the flow turbulence to subsidize prior to diverting the flow.

3. Butterfly valves are essentially bidirectional. In the case of high-performance butterfly valves, and sometimes in the case of low-pressure and low-temperature butterfly valves, the valve design may require more actuating torque to open or close the valve when the flow is reversed. In such cases, the valve manufacturer must be contacted to ensure that the valve is designed and the actuator is sized for flow in both directions.

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Metal Seated Butterfly Valves

The butterfly valve incorporates a metal to metal seat with a geometrically significant triple offset design, which gives bi-directional zero leakage and 90° non-rubbing rotation.

Features & Applications

  • Torque generated elastic metal seal provides zero leakage performance, as from API 598 and API 6D.
  • Torque-seating action ensures continuous bi-directional, zero leakage performance.
  • Quarter turn non-rubbing design is achieved by a unique, triple offset geometry, completely eliminating all seat-to-seal rubbing throughout the valve’s 90 degrees rotation.
  • Stellite® hard faced standard integral seat results in broader applications, longer valve life and less maintenance.
  • Single-piece cast body, with face-to-face dimensions in accordance to ISO 5752, ASME B16.10 and API 609 provides interchangeability with gate, ball, high performance butterfly, plug and other valves for simpler and more flexible installation.
  • All metal construction and sealing and zero leakage performance translate into an inherently fire safe valve.
  • Long-length hardened bearings, incorporating a standard reinforced, die-formed, flexible graphite bearing protector ensure additional reliability.
  • Internally and externally retained, three times blowout proof stem is safer to operate and provides complete compliance with API 609.
  • Integral position indicators on the stem and the top mounting flange ensure positive disc position indication.
  • A long-lasting experience of valves successfully working on the following media: hydrocarbons, steam (saturated and superheated), geothermal steam, hydrogen, oxygen, cryogenic fluids, hot gases, sulfur (tail gas), chemical solvents, chlorinated solvents, flare gas.

Advanced Butterfly Valve Technology for High Flow Applications

The newly designed butterfly valve and actuator assembly is the most intelligent, energy efficient, and reliable high flow solution in the HVAC market. With a focus on the ease of installation, application flexibility and longevity, this series sets new performance standards in HVAC applications.

  • Saves energy with up to 80% less power consumption and reduces transformer and wiring costs.
  • Patent pending, self-adjusting end stop logic ensures zero leakage at 200 psi close-off.
  • Industry leading fail-safe function and universal power supply input 24-240 VAC /

    24-125 VDC requires only one actuator type which eases planning and increases flexibility for all applications

  • Unique position indication viewable for easy troubleshooting.
  • Near Field Communication (NFC) along with BACnet communication protocol provide superior application data access.

Applications

The resilient seated butterfly valves are designed to meet the needs of HVAC and commercial applications requiring zero leakage. The large Cv values provide for an economical control valve solution for larger flow applications and designed for use in ANSI flanged piping systems. Typical applications include chiller isolation, cooling tower isolation, change-over systems, large air handler coil control, and bypass and process control applications.

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What Butterfly Valves Are and How They Work

A butterfly valve otherwise known as quarter-turn valves, isolate and control the flow of a liquid. Most often used in water or waste treatment, especially in the field of agriculture, a ball valve , much like butterfly valves, also have the distinction of being one of the most common valve types on the market. Butterfly valves serve reliably even when a heavy-duty valve is required. These valves need very little maintenance and are extremely durable.

Butterfly valves are devices used for flow control, usually the flow of a fluid through a section of pipe. The butterfly valve operates similarly to an electric ball valve. A flat disc located at the pipe’s center has a rod running through it that connects to the actuator on the exterior of the valve. Turning the actuator rotates the plate to a position either perpendicular or parallel to the flow. The flow may be regulated more specifically through different disc rotations.

The “butterfly” is the metal disc mounted on the rod. When the valve is in the closed position, the disc is rotated to a position in which it totally blocks the passage of liquid. When the valve is open fully, the disc has been rotated one-quarter turn—90 degrees—allowing for nearly unrestricted passage. Flow may be incrementally regulated by various positions of the valve. This advantageous feature of butterfly valves makes them ideal for many industrial uses. The size of butterfly valves is one more of their advantages. Since they are lighter and smaller than other valve forms, they do not necessitate the large degree of supporting structure required for other valves, such as the electric ball valve.

The butterfly valve has a resilient seat, a body, a butterfly disk, packing, a stem, an actuator, and a notched positioning plate. When the resilient seat is mounted in the valve body, it is under compression and makes a seal around the edges of the disk and the lower and upper points where the stem runs through the seat. Packing provides a positive seal all around the stem for extra protection, should the seal made by the seat suffer damage.

Butterfly valves are available in different styles, such as high-performance and eccentric valves. Butterfly valves can be found on fire apparatus and large lines, such as tank to pump lines and rear and front suctions.

The design of the butterfly valve does give it a disadvantage, because unlike an electric ball valve, a portion of the disc will always be in contact with the liquid, regardless of whether it is in the open or closed position, and this causes a constant pressure switch regardless of the setting. Viscous or thick liquids also may slow the disc’s functional movement.

Though butterfly valves may be configured for electronic or manual operation, the most rapid is pneumatic control. The gearbox must receive a signal to both open and close an electric ball valve. However, an advantage to pneumatic operation lies in its flexibility, for it permits either double or single actuation. Single actuation requires a fail-safe, so that in the event of power loss, on a spring-loaded system, the valve will change to the closed position if open. So, a signal must be sent to open the valve initially. Double actuation valves need signals to both open and close the mechanism, because they are not spring-loaded.

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Application of Butterfly Valves

In the pharmaceutical, chemical and food industry a butterfly valve is used to interrupt product flow (solid, liquid, gas) within the process. The valves used in these industries are usually manufactured according cGMP guidelines (current good manufacturing practise).

Butterfly valves can be used in many applications because they can be used with many different media types including water applications, corrosive materials and some slurries. Typical applications include:

  • Cooling water, air, gases, fire protection, etc.
  • Slurry and similar services
  • Vacuum service
  • High-pressure and high-temperature water and steam services.

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Plastic Handle Butterfly Valve

Sanitary Solutions introduces the following: Plastic Handle Butterfly Valve to service the Beverage, Brewery, Tank and Winery Industries.

Our valve is designed with multiple positions so you can slowly open the valve and create less stress on the valve seat versus the open and close style of valve and the option of multiple positions for more or less flow depending on your needs.

Since the valve comes standard with a clamp end, it is easy to assemble and disassemble when cleaning or working in a tight space. We have provide a black plastic handle for your fingers to turn the valve easier especially if it is wet and interchangeability of the Handle to either side when placed in an area where a wall could be a problem and you can not open and close the valve.

Sanitary Solutions Black Plastic Handle Clamp Multiple Position Butterfly Valves are 100 percent Hydraulic Pressure Tested and 100 percent inspected, no special tools needed in the field to work on the valve, and your choice of Silicone or EPDM seats depending on the product. As for the finish and all wetted surface, the sanitary finish is to a 32 Ra or better. Each valve is capped and bagged so you have no dings on the ends as well as permanent etchings for the size, alloy and heat number for full trace ability.

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Expander Butterfly Valves

Whenever flue gas enters the expander lines from the catalyst regenerator of the FCC unit, it passes through one of the following Butterfly Valve types:

  • by-pass,
  • control,
  • shut-off.

These butterfly valves are designed for minimum pressure drop since the main pressure drop should occur across the expander. The size of control and shut-off butterfly valve is determined by the flue gas volume.

Under normal operation the high flow by-pass butterfly valve is closed and the low flow by-pass is controlling, while the shut-off butterfly valve is fully open.

Low flow by-pass butterfly valves are active at all times. The relatively small size of the butterfly valve is due to to the fact that they take the full gas pressure drop.

High flow by-pass butterfly valves are normally closed. They are designed to direct the flue gas flow directly to the boiler burners. In order to prevent any large back pressure peak in the regeneration in the event of an emergency shutdown of the expander, this butterfly valve must be able to open at the same rate of speed.

Control butterfly valves are designed to regulate the flow to the expander and the expander speed. They are able to close as rapidly as a safety shut-off butterfly valve.

The shut-off butterfly valve is the main protection of the expander and in order to do so it needs to be tightly sealed and to have the capability to close at the required speed. This butterfly valve is activated by a signal from the expander control.

Regardless of the type, the main components of a butterfly valves are body, shaft, disc, springs, bushings and stuffing boxes.

All body internal surfaces are hard-faced to minimize erosion caused by catalyst particles and the extension and shape of hard-faced areas are calculated with the aid of Computational Flow Dynamics analysis.

To provide the required mechanical strength at the design temperature, minimize its size and consequently maximize the flow coefficient Cv, the shaft is made of INCONEL X-750.

In order to minimize friction losses and torque unbalancing the disc shape too is determined with the aid of Computational Flow Dynamics analysis.

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