Power Generation

Graver Technologies has engineered top-quality filters for power generation to remove impurities that could result in damage to machinery such as boilers, steam generators, reactors, or turbines.

Fossil fuel (coal, oil, gas) and nuclear power stations produce electricity with turbines powered with high-pressure steam. During the process of steam generation in power plants, the steam cools, forms condensate and is then utilized as boiler feedwater. The condensate must be purified or "polished" in order to remove impurities for the ultimate purpose of removing all soluble impurities in order protect the high-pressure boilers, steam generators, reactors, and turbines. Condensate polishing typically involves ion exchange technology for the removal of these trace dissolved minerals and suspended matter including silica oxides and sodium, iron oxide particulates from corrosion, also called 'crud', and other contaminants which can cause corrosion and maintenance issues. The condensate polisher will require back washing and regeneration based on increasing pressure drop and on ionic exhaustion.

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Graver is the world’s largest supplier of condensate system filters and components and has been manufacturing precoat and non-precoat septa for condensate systems for more than 50 years. Graver is the consistent technology innovator with more than 40 patents and numerous technical advances, providing the know-how and ability to modify ion exchange media, both mechanically and chemically, for the removal of trace containments from condensate and other high purity water streams in power generation. We provide expertise in the design, manufacturing and application of specialty back-washable filter elements for power generation used alone or in combination with ion exchange. With our extensive experience in engineered septa for the high value HPCPU power generation market along with an engineered line of products for specific applications (PWR, BWR, Fossil) as well as reputation for quality, performance, competitiveness, and service, Graver Technologies can support customers with superior products and services.

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Frequently Asked Questions

Do refrigerator water filters remove arsenic?

Always check labeling for certification of contaminant removal from filter products.

What is nitric acid? What is it used for?

Nitric acid is the inorganic compound with the formula HNO3 and is considered to be a strong, highly corrosive acid. It has broad application in industrial manufacturing from fertilizers to high purity uses as an etchant in semiconductor production.

What do compressed natural gas filters protect against?

Natural gas is filtered at multiple stages in the process of manufacturing and transport to remove particles, hydrocarbons, water vapor and acid gas. These contaminants contribute to excessive wear, loss of efficiency and decrease the risk of downtime of equipment.

Is reverse osmosis water good for you?

Reverse Osmosis (RO) is a common process to produce potable water as a supplemental treatment for a residence or as a large-scale municipal process. While there is some debate on the question, there is no scientific evidence that RO water creates any adverse health effects. RO does remove some minerals such as calcium, magnesium and potassium which are beneficial to health.

Why do cooling towers need water treatment?

Cooling tower systems operate most efficiently when their heat transfer surfaces are clean, but by design, require a large air-_water interface to obtain this cooling and thus the system is subject to four major water treatment concerns: corro_sion, scaling, fouling and microbiolog_ical activity. These waterborne deposits (suspended solids) reduce heat transfer efficiency, which substantially increases the energy cost for operation of chillers.

How to remove heavy metals from water and wastewater?

Many MetSorb(R) adsorbents will remove heavy metals from water and wastewater. Please view our product pages for more information.

How to become a distributor?

Contact the Regional Sales Manager responsible for your specific geography, which can be found on the website in the "Where To Buy" link, or email your request to [email protected].

What is a pre reverse osmosis filters and why is it necessary?

In order to maximize the life of reverse osmosis membranes, it is highly recommended to use a filter in front of the membrane with the goals of reducing the risk of fouling the membrane. Membrane fouling is the main cause of permeate flux decline and loss of product quality in reverse osmosis systems. Silt Density Index or SDI (ASTM standard test method D 4189-82), is the empirical test developed for measuring the potential rate of fouling of RO membranes

What's in a HEPA filter?

HEPA (high efficiency particulate air) filters are made by using microfiber media typically polypropylene or fiberglass fibers which are capable of removing particles between 0.3 and 10 microns (µm)

What is the difference between MOCVD and CVD? What does MOCVD stand for?

Chemical vapor deposition (CVD) is a vacuum deposition method generally used for depositing crystalline micro/nano thin films and structures on wafers using materials such as silicon, carbon, fluorocarbons, tungsten and titanium nitride. Metal organic chemical vapor deposition (MOCVD), a variant of CVD, is most commonly used for the production of red, blue, green and white LEDs

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ANNA 2023 Conference
ANNA 2023 Conference

Graver Technologies will be exhibiting at the ANNA Conference in Varna, Bulgaria from September 10th to September 15th

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The Role of Membranes in Microbial Retention

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Polishing Filtration of Plant Extracts

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