ECD is one of Peacock's Great Suppliers. They have recently added a Chlorine Dioxide Analyzer to their already extensive family of Analyzers.

The New CDA‐22 Chlorine Dioxide Analyzer added to the family of
ECD Analyzers ‐ drinking water, rinse water, cooling water, & fresh water applications
The CDA-22 is a panel mounted,
ready to use Chlorine Dioxide
Analyzer. It is designed to monitor
chlorine dioxide in drinking water,
rinse water, cooling water or other
fresh water samples from 0.05 – 20
ppm ClO2. The CDA-22 features a
plug and play design that incorporates
a flow control device, a chlorine
dioxide sensor and the C22 analyzer/
controller conveniently mounted on a
PVC panel. Connect the sample and
drain lines, connect the power and
outputs and it is ready to use.
Calibration is accomplished by DPD
comparison.
Chlorine Dioxide (ClO2) exists as a
gas in solution, it does not dissolved
like other chlorine compounds and is
therefore not affected by the pH of the
solution. ClO2 is approximately 10
times more soluble than chlorine in
water but it is extremely volatile and
can be easily removed from dilute
aqueous solutions with minimal
aeration. Chlorine Dioxide diffuses
through the PTFE membrane of the
sensor and is reduced to chloride ion
by the addition of electrons from the
cathode. Silver from the anode is then
oxidized to silver chloride. The
electrons released from the gold
cathode and the electrons accepted
on the silver anode result in a current
flow which is proportional to the
chlorine dioxide concentration in the
medium. Temperature affects the
ClO2 permeability membrane,
increasing the temperature increases
the output of the sensor about 4%/oC.
The chlorine flow cell includes a
temperature sensor that allows the
C22 analyzer to perform automatic
temperature compensation of the
measurement. Amperometric chlorine
sensors are flow sensitive, the
minimum required flow by the sensor
is 0.5 ft/sec, above this value the
output is virtually flow independent. A
“Constant head” Flow control Device
(CFD) maintains the optimum flow by
the sensor over a wide range of
incoming sample flow rates. The
minimum flow required for the CFD is
10 gal/hr and the maximum flow is 80
gal/hr with the sample going to drain
at atmospheric pressure.
http://www.ecdi.com/products/chlorine_analyzers.html

Onyx & Peacock Partner in Canada

March 12, 2010… As an employee of Peacock, a division of Kinecor, I am very pleased with our most recent distribution partnership agreement with “Onyx Valve Company” for the distribution of their Isolation-Rings in Canada. Onyx is the fastest growing “Pinch Valve” Company in the world and Peacock is a division of Canada’s largest distributor of Industrial, Process Equipment and Instrumentation products. It only made sense that our two companies entered a distribution agreement for the Canadian market.

Onyx was started by six employees, who had worked for a major pinch valve manufacture in Southern New Jersey, fortunately for the world that pinch Valve Company was acquired by a large multi national corporation which promptly closed the facility in 1994. The six new entrepreneurs started Onyx on May 1, 1995 and now They Are the Fastest Growing Pinch Valve Company in The world!

Onyx Valves Products include: Pinch Valves from ½” through 24”, Pneumatic actuators, Pressure Isolation-Rings from ½” through 30” Diameter, Electro-Pneumatic Positioners, Expansion Joints and controls related to fluid handling applications.

Onyx manufactures their products in a state of the art facility in Cinnaminson, New Jersey. All their rubber valve sleeves and Iso-Rings sleeves are made in house to their exact specifications by the most experienced molders in the industry. All rubber recipes are a guarded secret and all molders follow these step-by-step recipes to the ‘T’. Onyx’s exacting processes meets machine-tool tolerances this guarantees the longest life in the industry. All sleeves are “Compression-Molded” during the vulcanization period. The tolerances on all Onyx Sleeves are +/- 0.005 inches on the wall thickness from end to end. With Tolerances like this, Onyx can assure their clients of their product’s superior life under the harshest of conditions.

The Onyx Isolation-Rings are recognized around the world for their; Quality, Longevity, Robustness and their “Module Seal”. Onyx Iso-Rings are “factory vacuum-filled with high viscosity silicone fluid” and are permanently sealed with Onyx’s Revolutionary “Module Seal”. Products Like United Electric Pressure Switches, Transmitters, and Smart Electronic Indicating Switches as well as Ametek Pressure Gauges paired with Onyx Iso-Rings, these pairings can be found in Waste-Water Treatment Plants around the world. Now with their patented “Module Seal” and “Stinger Fitting” this allows easy change out of instruments without loosing the “factory vacuum-filled with high viscosity silicone fluid”.

I know that my colleagues are as proud as I am to be a distribution partner with Onyx; I know that Peacock’s other market leading products like Ametek US Gauge and Pressure Transmitters, United Electric Pressure Switches, Pressure Transmitters and Smart Indicating Switches will all strongly compliment each other.

I am so very pleased to be associated with such a strong team of products.

Hydrogen Permeation - Galvanic Reaction

Honeywell Process Equipment has written the below white paper on the effects of "Hydrogen Permeation - Galvanic Reaction", This paper describes a potential problem and the solution for "Process Transmitters" being used in Hydrogen applications. I hope you find this article to be educational. And just maybe it might shed some light on problem applications you might be experiencing within your plant.


Hydrogen Permeation – Galvanic Reaction

Introduction
Hydrogen (H) is the simplest and smallest atom element in nature. Water, acids, bases, and the entire family of organic compounds all contain hydrogen. While hydrogen is not considered corrosive, it can cause problems with pressure transmitters if the application is not properly evaluated. Pressure transmitters with close coupled zinc- or cadmium-plated components that are used where water is the process medium, in part or in whole, are commonly susceptible to hydrogen migration.

Hydrogen is normally found as in a diatomic state as a molecule composed of two hydrogen atoms (H2). In this state, molecules will not penetrate the thin metal barrier diaphragms. However, if the hydrogen splits into two hydrogen ions (H+ atoms), it can penetrate barrier diaphragms because H+ ions are smaller than the space between the molecules of the barrier diaphragm metal.

The source of the hydrogen gas (H2) significantly influences the way migration affects a transmitter. The worst possible case is where (H2) is cathodically generated on the face of the diaphragm. All it takes to create a galvanic cell is a weak electrolyte (water serves very well) coupled with zinc- or cadmium-plated transmitter flanges, a galvanized pipe, or fittings near the stainless steel diaphragm.

Zinc or cadmium plating serves as limited but significant types of corrosion protection when the base metal cannot provide the needed protection. For applications that do not require maximum protection, zinc or cadmium offers an inexpensive solution. Due to environmental protection limitations, cadmium is no longer offered and zinc is now mainly used.

Zinc is applied as a thin coating sufficient to withstand normal atmospheric corrosion. However, its resistance to corrosion by most chemicals is low. Zinc acts as a sacrificial anode. This means the underlying metal is protected at the expense of the zinc plating ― even when the zinc plating is scratched or nicked, exposing the metal substrate.

A potential difference results when the electrically connected zinc-plated heads or galvanized piping (anode) and the positive diaphragm (cathode) are separated in a conductive medium (water). This potential difference causes positively charged particles to flow from the anode to the cathode through the conductive medium. To complete the circuit, the negatively charged electrons flow from the anode to the cathode through the metal-to-metal contact between the heads and diaphragm.

The loss of electrons by the zinc plating is called oxidation, and it causes the metal to become positively charged. The positively charged ions on the surface (Zn++) attract negative ions found in the aqueous process to form new compounds. This new compound no longer has its former metallic characteristic, but rather takes on a new form, such as zinc oxide (ZnO2). The gain of electrons at the diaphragm is referred to as reduction and allows the metal to retain its metallic properties while liberating monatomic hydrogen (H-) and oxygen (O) in the process. Some of the monatomic hydrogen (H-) migrates through the diaphragm; the remainder combines to form hydrogen gas (H2), which bubbles away harmlessly.

After passing through the barrier diaphragms, H+ ions will re-combine into H2 molecules, which become trapped. Gradually the H2 molecules dissolve into the transmitter’s fill fluid, and over time the fill fluid becomes saturated. The concentration of trapped H2 depends on the operating pressure (static pressure) of the system and the temperature. The moment the static pressure is relieved, the trapped H2 gas expand and a bubble appears.

Hydrogen gas trapped inside a transmitter causes zero and span shifts over time as the trapped gas increases degrading performance of the transmitter. As the hydrogen gas builds up, it causes outward expansion (‘bulging’) of the barrier diaphragms, leading to cracks and transmitter failure through the loss of fill fluid.

A typical pressure transmitter diaphragm measures 0.002 inches (0.025 to 0.050 mm) thick. If the permeation continues long enough, permanent distortion of the diaphragm takes place as the diaphragm continues to expand.

This distortion is most evident and damaging once the static or operating pressure is relieved from the transmitter with the trapped (H2) still at the static pressure behind the diaphragm. The trapped hydrogen gas occupies a greater volume than the liquid fill fluid and ‘bulges’ or ‘blows-out’ the diaphragm.

Applications
Where to watch for galvanic H2 permeation? Water applications with galvanized process heads, impulse piping, 2/3-way manifolds, fittings, valves, etc. in the process are the obvious sources of hydrogen permeation. Water applications include steam or steam generating applications.

However, hydrogen permeation can occur in applications where water is not the main component present in its liquid form. Water in its vapor form as moisture can lead to the same problems when the vapor condenses. This can include combustion-air or compressed-air applications where moisture is present in the air. Water vapor condensing out due to compression or temperature changes collects inside a transmitter and leads to the same problems.

Diaphragm Materials
Diaphragm metal material affects the rate of hydrogen permeation because molecular lattice spacing is different in each metal. The nickel (Ni) content of the metal also affects the rate of hydrogen permeation. While not totally understood, the rate of hydrogen permeation increases exponentially with the nickel content.

Stainless steel has the lowest nickel content and is the diaphragm material of choice for most applications. Nickel-based metals, like Hastelloy C-276 and Monel, should be avoided as well as Tantalum.

Solutions and Prevention
Although expensive, gold-plating the barrier diaphragms offers the best protection. A thin layer (0.00012 inch (3 μm) thick) of 99.9% pure gold virtually eliminates hydrogen permeation without itself being affected by the process. However, do not use gold plating to enhance resistance to corrosion. The gold plating is too thin and too porous to provide an effective barrier to corrosion.

• 
  The correct choice of metals affords the best prevention in aqueous applications. The following guidelines may be useful. However, Honeywell provides no assurances or guarantees as to their appropriateness in a specific application. It is customer experience that is paramount.
  
  • Do not use Hastelloy diaphragms with zinc-plated carbon steel process heads. Zinc is extremely anodic compared to the highly cathodic Hastelloy and rapid zinc corrosion can release excessive hydrogen ions and initiate rapid ion migration.
  
  • Do not use zinc-plated carbon steel process heads with stainless steel diaphragms. Stainless steel process heads should be used for this application.
  
  • Gold plate the diaphragms whenever hydrogen ion migration is a threat.
  
  wpdf5233 ©Honeywell International Inc., 2003

Flexim Clamp-On Ultra-Sonic Thermal Energy Meter

One of our Flag ship Products Flexim Clamp-On Ultra-Sonic flow meters recently printed the below in their latest news letter.

If you would more information call my cell phone 905-464-2605
The attached link is for the Energy Meter Brochure.
http://www.flexim.com/download/brochures/bubtuus.pdf

Featured Application: Thermal Energy Meter
Low Flow Capabilities used to recover Lost Energy!
Energy Recovery Initiative: The Engineering
and Utilities Department at Harvard University is
always at the forefront of energy reduction and
recovery. The university demands excellence from
their students and in turn exhibits excellence in
their facility operations. Harvard University is
launching a new energy program. It enables endusers
to view the amount of energy that they are
using. In joining the global effort to decrease
energy consumption, go green, and accurately
increase energy efficiency, Harvard Engineering and
Utilities has selected Flexim to upgrade the Thermal
Energy Meters.
Chilled Water: The Engineering and Utilities Department
operates a 13,000 Ton central plant and a 7,500 Ton
satellite plant. Both plants provide chilled water and
process cooling to 75 buildings located in the vicinity of
the Cambridge campus. Over 5 million square feet of
building and lab space must be cooled. The plant must be
able to accurately track the amount of Energy in Tons for
efficiency and billing purposes. During off-peak
conditions, some buildings may use very little thermal
energy which requires very low flow rates and small
temperature differentials. The previous metering solution
was incapable of measuring these low flow rates which
averaged 0.028 feet/second at some locations.
Go Green, Go Flexim! The Harvard-Flexim Thermal
Energy Project was a complete turnkey installation. A
total of 60 Thermal Energy meters were replaced in a
matter of six weeks. There were no costly shutdowns or
interruptions with the Chilled Water Utilities. The new
meters are capable of measuring extremely low flow
velocities as low as 0.028 feet/second, communicating
via MODBUS or dial-up modem networks, and are
completely non-intrusive. Engineering and Utilities at
Harvard University is now better equipped to measure
their Thermal Energy usage and tackle their next energy concerns. Harvard and Flexim
are going green, are you?
Thermal Energy Meter - Fast Facts:
Application: CW, HTHW, Condenser Water, Glycol, Condensate, Sub-Metering, Meter &
Verification (M&V), LEEDS certification
Markets: Universities, Hospitals, District Energy Plants, Public Utilities, Skyscrapers,Airports,GeoThermal Sites
References: Harvard, MIT, Brown, Columbia, NYU, NOVA, UVA, UCLA, Trigen, CitiBank,
Morgan Stanley, Siemens, Johnson Controls, Empire State Building

AW Lake Flow Company Partners with Peacock

Instrumentation Wireheads.

Good News.

AW-Lake Co Strengthens its Presence in Canada with New Distributor Agreement with Peacock, November 23, 2009
FRANKSVILLE, Wisc., Nov. 23 -- In September, AW-Lake Company inked a distribution agreement with Peacock, a division of Kinecor, to stock, distribute and support flow measurement systems from the AW-Lake brands AW Gear Meters and SABRE Flow Turbines. The agreement unifies AW-Lake’s Canadian market and provides more localized support. The two companies are working together to target oil & gas, HVAC, food & beverage, water and pharmaceutical markets, which are expected to continue to bounce back through the end of 2010. Although this is an exclusive distribution agreement, it is non-exclusive for the province of Quebec. Peacock will offer both of AW-Lake’s new products, the TW series turbine flow meter specifically designed for the oil & gas market, and the MicroFlow PD gear meter, which is ideal for low flow rate applications, such as chemical injection.

"We are very proud to align with Peacock, a key player and leading source of instrumentation and industrial products,” stated Curt Foreman, Director of Sales & Marketing for AW-Lake Company. “We are confident that Peacock is equipped with the talent and experience necessary to accelerate the growth of our flow measurement products in the Canadian markets.” Simon Bennington, Peacock’s VP & General Manger agrees, “We feel the AW-Lake products as well as the technical support and new product development program will provide Peacock with a strong product offering, allowing Peacock to use our technical sales and service expertise and Canada-wide presence to mutually benefit both companies.”

About AW-Lake Company
AW-Lake Company, a TASI Group company, is a leading North American manufacturer and distributor of flow control products servicing the fluid control needs of several industries, including oil & gas, paints & coatings, hydraulics & pneumatics, food processing, fluid power and waste water treatment. Together with its German sister company, KEM, AW-Lake has distribution throughout North America, South America, Europe, and Asia. For information, please contact Marcia Reiff, Marketing Manager, at 800-850-6110, e-mail mreiff@aw-lake.com, or visit AW-Lake’s Web site at www.aw-lake.com.

About the TASI Group
The TASI Group of Companies is comprised of three technologically advanced product platforms commonly linked by a disciplined focus of the three platforms Leak & Measurement, Flow, and Assembly & Test. Each TASI company delivers products and services to today’s world manufacturing environments, focusing on Automotive, Medical Devices, Oil and Gas, Plastic Containers, Consumer and General Industrial markets. For more information about the TASI Group, visit their Web site at www.tasigroup.com.

About Peacock
Peacock Process Equipment division of Kinecor represents Canada’s leading source of field-proven products and carries a broad range of mechanical, instrumentation and process control products for fluid handling, filtration and bulk materials handling. Over 20,000 customers in virtually every primary and secondary industry are serviced from two major distribution centers in the east and west, and local sales, stocking and service facilities in twelve regional offices from coast to coast. Visit www.peacock.ca or call 1-800-313-3103.