Duncan Co/Arjay will be at the 2019 Cheese Industry Conference April 17-18, 2019

Make plans to stop by Booth 1136 at the 2019 Cheese Industry Conference being held at the Alliant Energy Center in Madison, Wi on April 17-18th.

Come see what new technologies we have to help with your processes and sign up to win some prizes!

Cashco/VCI are now available through Duncan Co-Wisconsin

Cashco, Inc is a leading manufacturer and worldwide marketer of a broad line of industrial control products. Products include control valves, regulators, controllers, pressure/vacuum relief vents, and flame and detonation arrestors. Industries served include chemical, terminal storage, oil & gas, electronics, food and pharmaceutical.

We can help you with your applications, contact us today!

for more information on Cascho & VCI, contact us at Duncan Co (formerly GWS Supply)

Resilient Seated & High Performance Butterfly Valves available at GWS Supply

GWS Supply/Duncan Company can help you with your Butterfly Valve needs from Resilient Seated Butterfly Valves to High Performance and anything in between such as Damper Valves or Sanitary Butterfly Valves we have it all.

Having trouble finding a valve in stock for quick delivery?  Contact us at GWS Supply/Duncan Company and our inside technical staff can help solve your problems.

Quadbeam S20 Hygienic Suspended Solids Sensor can help Dairy Plants increase Yields & Efficiency!

Quadbeam Technologies S20 Hygienic Suspended Solids Sensor

Locating the exact point of transition between product and water or different products can be challenging with many plants relying solely on time and flow calculations.

A Quadbeam Sensor will quickly and accurately identify the interface time after time which could mean any or all of the following to your process:

  • Faster Change Times giving to reduced down time
  • Increased Yields
  • Decreased waste treatment
  • Decreased water consumption

With the use of a Quadbeam sensor you get to change at the actual point you want to, not a theoretical point.  Quadbeam’s four beam ration metric technology self compensates for change caused by contamination or sensor surface or aging of the instrument.

Contact us at GWS Supply for more information or help with your applications!

3-Way Mixing Electric Actuated Ball Valve with Sharpe/VSI available at GWS Supply

1.5″ 3-way 150# Flanged Full Port Ball Valve with 120V Electric Actuator was built for a 3-way mixing application.  Our customer wanted control with reliability, the switches are for full open/closed signal.


  • Full Port Design, bodies rated to 600CWP
  • Valve designed for many applications involving diverting or mixing
  • Valve available in Threaded, Socket Weld & 150# Flanged
  • Traceability on Body & End piece castings (CMTR)
  • Control Module:  Direct Digital control input 4-20mA or 1-20VDC from controller
  • Housing:  Nema 4, watertight, corrosion-resistant, powder coated, rubust aluminum die cast
  • Position Indicator:  Mechanical dome type with visible red/yellow close/open indicator
  • Ambient Temp Range:  -31°F to 150°F
  • Certification and Approvals:  CE, NEMA4, NRTL, CSA File 226201

Compact & Economic Brass Automated Ball Valve


Rub 1″ Brass Ball valve with AVCS AV16S4 Spring Return Actuator give you a complete package that is compact and economically priced. 

Contact us today to see how we can help you with your valve automation applications!

ASUH-I Series Miniature Pressure Transmitter

The ASUH-I Series has been designed for demanding installations where space is extremely limited and high vibration/temperature are anticipated.

Features are:

  • Sub-Miniature Size
  • 70 to 6000 psi Range
  • 4-20mA Output
  • +/- .25% Accuracy
  • Lightweight 0.4 oz


Aseptic Samplers for Food Production with Sentry

In the food industry, aseptic equipment is vital to ensure food safety. That equipment includes aseptic samplers used by quality control personnel to easily and safely sample liquids from closed systems such as food and beverage process lines and vessels. Aseptic samplers guide the product through a hermetically sealed system directly into a bottle without contact to the environment.

What is Aseptic?

The definition of aseptic is “free from the living germs of disease, fermentation, or putrefaction or protection against pathogenic microorganisms.” Aseptic sampling equipment is used in food processing to reduce the likelihood of contamination from harmful pathogens mainly from microorganisms, during sampling.

Contamination risk in food production comes from using incorrect samplers or using samplers incorrectly. Therefore it’s critical to choose the right aseptic sampler to prevent contamination and ensure food safety.

Design Determines Effectiveness

Aseptic sampler selection starts with the design, which determines the sampler’s effectiveness in preventing contamination as well as ease of use. An aseptic sampler consists of the body, an actuator and a stem with a sealing element that seals at the process connection.

The sealing element, which is either a diaphragm or a bellows, is a critical part of the sampler, especially the material of construction. Seals made of softer material such as ethylene propylene diene monomer (EPDM) can move over the complete area of the seal. This can cause dead spaces and infiltration of the seal by the food product which leads to contamination.

The best aseptic samplers use a bellows made of polytetrafluoroethylene (PTFE) as the sealing element. The PTFE bellows has many advantages. The PTFE’s slippery surface guarantees an optimum cleanability as no product can stick to the bellows. Another reason is the elasticity. The PTFE bellows is only moving at one point, the fold itself. Superior to common metal bellows design, the low-adhesive, long-life PTFE bellows provides one-piece sealing that’s resistant to nearly any product. The cost of replacement of a PTFE bellows is considerably less compared to a metal bellows. Also, PTFE bellows can be changed without special tools to simplify maintenance and reduce downtime.

Select a No Dead Space Design

The design of the sampler body is important to preventing contamination, too. It affects how well the sampler seals, drains and cleans via clean-in-place (CIP) and sterilization-in-place (SIP) methods. The body of a sampler with a one-piece, dead space free design made from a solid billet of 316L stainless steel provides hermetic sealing against the environment in combination with the PTFE bellows to eliminate process contamination.

The dead space is where food debris can collect and contaminate the process. The lack of dead space also makes the sampler drain completely and easier to clean. A dead space free design also allows food products to flow gently through the sampler to preserve the product sample quality.

Following the selection guidance above can help you select the best aseptic sampler for your food production application to avoid contamination and ensure food safety.

Contact us at GWS Supply LLC for help with your application.


V-Ball Control Valve Packages

YTC Positioners lead the way in tough applications.

Process industries often depend on high performance valve actuation in harsh environments.  Despite the difficult surroundings, process plants demand the latest technology, such as smart positioners, which allow technicians to use auto-calibration and simple diagnostics to commission and monitor their entire system at the push of a button.  In many cases, the valve, actuator and smart positioner package is exposed to extreme temperatures, dirty conditions and other challenges such as high vibration.

For an overview on how the YTC Smart Positioners click here