This is the "wpengine" admin user that our staff uses to gain access to your admin area to provide support and troubleshooting. It can only be accessed by a button in our secure log that auto generates a password and dumps that password after the staff member has logged in. We have taken extreme measures to ensure that our own user is not going to be misused to harm any of our clients sites.
Due to its highly corrosion-resistant nature, the requirement to provide a hygienic environment for both liquids and air service to a process will often involve sanitary stainless steel. The industries that demand a sterile microbiological-free system can be found in Aerospace, Semi-Conductor, Food & Beverage, Pharmaceutical and Personal Care. Some facilities, such as Nuclear and other power generating plants may not have the same need for a biological free environment but require the other benefits found in a sanitary stainless-steel system, such as the durability of the steel.
Sanitary Stainless steel piping systems typically have welded joints with elongated bends and are so designed so that there is a smooth transition from section to section and, therefore, contaminants cannot accumulate. The welds need to be smooth and have full penetration inside and precautions must be made to prevent oxidation during welding. Most Sanitary Stainless-Steel systems use a grade of steel that is either 304 or 316. This type of steel contains Chromium Oxide which protects the sheets or piping components from corrosion or contamination. Welding processes that keep a consistent temperature and exhibit a lower heat input will help maintain the proper amount of Chromium in the steel. Inert gases such as Argon or Helium are commonly used to create this type of welding condition. Orbital welding systems are very precise and reliable due to their speed, consistency and ability to perform most welding in a sterile environment with limited human involvement.
Borescope testing (fiber optics) is frequently required on sanitary stainless steel piping to insure that the interior welds on the piping can be visually seen and confirm that there is a smooth surface with no pits, cracks or areas where contaminants could accumulate. Passivation or pickling can additionally be performed if further hygienic cleaning of the pipe is required.
Discoloration around the welds is often a good indicator of potential corrosion hazards in a sanitary stainless-steel system and should be kept to a minimum or eliminated.
The fabrication and installation of sanitary stainless-steel piping, fittings, valves and equipment requires a contractor’s commitment to extreme quality assurance, proper documentation, verifiable traceability of materials and the ability to provide assistance to the facility during commissioning and start up. Waco has trained welders who are practiced at sanitary stainless steel welding processes. We have a trained QA/ QC staff that keeps updated on current requirements and certifications. We have a quality system in place that streamlines the entire process from design to product delivery.
Waco performs complete HVAC system replacement packages for our many commercial and institutional clients. New technologies from manufacturers have vastly improved the quality and comfort of air as it is distributed throughout the building. Waco has been proactive in advancing the implementation of these new systems. We will explain the many components required for constructing a properly functioning commercial HVAC system.
Important Components of a HVAC System:
Depending on what system or combination of systems that are being utilized in a building – these are the main components that we will review:
*Boiler *Cooling Tower
*Chiller * Ductwork & Piping
* AHU * Controls & Instrumentation
The main components in a boiler are: the combustion chamber, burner, economizer, heat exchanger, intake fan, exhaust stack, pumps, piping, valves, controls and instrumentation.
Boilers vary greatly in size, type of fuel and the type of heat produced (usually steam or hot water). Many of the larger types of boilers used in the past have been replaced with new more efficient packaged boiler systems. These new units require less space, and ramp up times are greatly reduced so that needed heat is available quickly and effectively.
The main components in a chiller are: the evaporator, condenser, compressor, air separator, cooling towers, pumps, piping/ valves, controls and instrumentation.
Chillers vary greatly in size, too, and are dependent upon the size of the building and how much humidity control is needed. Data Centers are one example. These buildings have equipment that generates vast amounts of heat and therefore require larger chiller systems, very strict humidity controls and an extensive backup system. On the other hand, standard office buildings or schools vary as to the time of day they are occupied, and will require a system that can more efficiently meet these fluctuations in occupancy.
Air Handling Units (AHU)
There are many types of AHU’s, some which incorporate a boiler or chiller and others which will operate independently. These systems involve moving air within a building. Fan coil units ( FCU’s) usually have hot and cold water piping entering the unit and piping to drain excess condensate. These systems are connected to a network of air ducts that are controlled by dampers and instruments that allow the system to offer both warm and cold air to the required space. Variable Air Volume ( VAV’s) and Constant Air Volume ( CAV’s ) are another type of system often used and are connected to the ductwork as well. Variable Refrigerant Flow ( VRF ) is a type of fan coil system that uses refrigerant rather than cold or chilled water piping.
These are critical components to a commercial system. They typically transfer heat coming from piping through a network of fans, louvers, or spray nozzles and return the cooler fluid back into the system. Different fluids are used in these systems but the most common ones are water, brine and glycol. Large cooling towers will have a substantial structural support framework, which can deteriorate over time. Waco has an experienced team to replace both the structural steel and cooling tower.
Reference job: Richmond City Hall.
Ductwork and Piping
Properly sealed and sized ductwork is a critical component to ensuring proper air flow and ventilation in a HVAC system. Efficiently bringing in conditioned outside air and reducing pollutants entering the system is an important aspect of providing the occupants with a healthy environment. Properly engineered ductwork (including transitions in duct size and other airflow design) will further increase the efficiency of the system. Waco has invested in sheet metal equipment, plasma cutters and other technologies to ensure that airtight sealing of all connections of the ductwork and equipment will be done correctly and in accordance with engineered specifications. Determining the right piping materials (PVC, Copper, Black Iron or Stainless Steel) are critical for maintaining an efficient system and one that will require the least amount of maintenance in the future. Waco has many years of experience properly installing pipe systems as designed for differing systems.
Controls and Instrumentation
No area of the HVAC system has seen more innovation and technical improvements than controls and instrumentation equipment and software. The ability to easily regulate the HVAC components that control temperature, humidity, airflow and ventilation is critical for a building owner. The BAS ( Building Automation System ) of today, involves a system of sensors and controllers which submit or receive data and electronically send messages to the devices that operate the pumps, dampers, actuators, flow meters and other HVAC equipment. Most HVAC BAS systems utilize either BACnet (an ASHRAE designed system) or another designed system, and can be controlled through the internet. These systems can be operated on site or remotely, allowing the building facility manager greater flexibility when changes are needed. Waco uses the services of several well known building control specialists when installing these systems on HVAC equipment.
Contact Waco for Your HVAC System Needs!
Waco is one of the leading commercial HVAC contractors in the industry. Our company has been in business for over 60 years.
Asbestos is widely used in construction, industrial, shipbuilding, and automotive industries. Asbestos mineral fiber was once hailed for insulation, fireproofing, high tensile strength, water heat & chemical resistance, low cost and natural abundance qualities. Most common uses include pipe & boiler insulation, fireproofing, floor tile & mastic, ceiling tiles roofing & roof flashings, and asbestos cement products.
Disturbance of asbestos requires the skill and knowledge of a professional contracting team that can protect you from the dangers and liabilities associated with an improper disturbance and/or abatement. Asbestos fibers can remain airborne for up to 72 hours and there is no known safe level of asbestos.
Asbestos fibers can be inhaled or ingested and can cause diseases such as asbestosis, mesothelioma, lung cancer, and digestive cancers. Many of these diseases have a latency period of 10-40 years.
This article is a basic guide to the asbestos abatement process
What Is the Asbestos Abatement Process?
The process usually begins with an asbestos survey and risk assessment of potential asbestos containing materials. This survey is needed prior to any renovation or demolition projects. Asbestos response actions include removal, repair, encapsulation, enclosure, and operations & maintenance. We can help you determine which response action fits your requirements and submit proper asbestos project notification forms as required by government agencies.
The process of asbestos abatement includes the following steps:
1. Preparing the Work Area
The process usually begins with background air sampling, posting of danger signs & barricade tape, lock-out/tag-out of HVAC/electrical systems, sealing of critical barriers with polyethylene, constructing containment chambers, installing HEPA negative air machines, and checking for proper negative air pressure within the containment. Containment integrity will be inspected by the supervisor prior to asbestos removal.
2. Removing Asbestos Containing Materials (ACM)
Specially trained, licensed, and medically monitored workers will don appropriate respirators and personal protective gear prior to entering the work area. ACM will be removed using wet, hand, and mechanical methods. Inside and outside air monitoring may be conducted to ensure the engineering controls are working and no exposure is released outside the containment.
3. Cleanup and Air Testing
Upon completion of the gross removal, the work area will be fine cleaned, wet-wiped, and HEPA-vacuumed to remove any remaining contamination. A final visual inspection of cleanliness will be performed prior to the application of a lockdown encapsulant which is used to trap any remaining airborne fibers. Once the encapsulant dies, then final air clearance samples will be taken as required.
Asbestos waste will be doubled-bagged and sealed in labeled waste bags per regulations. All waste will be properly manifested and sent to an authorized asbestos landfill.
Containment barriers and equipment will be removed once final air sampling standards are met. At this time, the work area will be ready for occupancy. Finally, we will provide the owner with waste shipment records and project records.
Why Is It Important To Hire Asbestos Professionals?
All abatement requires the skill and knowledge of a professional contracting team that can protect you from the health dangers and liabilities associated with improper handling of ACM.
The regulations and governing agencies can be varied and complex and an experienced professional contacting team is required.
Asbestos National Emission Standard for Hazardous Air Pollutants (NESHAP)
NESHAP is an Environmental Protection Agency regulation that requires building owners to perform asbestos inspections by an accredited asbestos inspector prior to renovating or demolishing a building. It also established project size criteria, industry definitions, work practices, training, notification, emission, and waste disposal requirements.
Asbestos Hazard Emergency Response Act (AHERA)
The AHERA is an Environmental Protection Agency regulation that applies to all public and private schools, k-12 grades. The regulation establishes the requirement for inspections, re-inspections, periodic surveillance, development and updates of management plans, development of response actions, operations & development of maintenance programs, custodial staff training, and parental notifications.
Asbestos School Hazard Abatement Reauthorization Act (ASHARA)
ASHARA requires individuals working with asbestos in public and commercial buildings to have AHERA level training. This regulation established the training requirement for workers, supervisors, project designers, inspectors, and management planners.
OSHA Asbestos Construction Standard
Established Class1-Class IV definitions, industry definitions, work practices, multi-employer worksite requirements, permissible exposure & excursion limits for asbestos workers, training requirements, and communication requirements.
State and Local Regulations
Each state, city, or local agency can have their own set of asbestos regulations..
Waco’s Safe and Effective Asbestos Abatement Services
Waco, Inc. can handle your asbestos abatement needs throughout the Mid-Atlantic regions. We have numerous offices throughout Virginia and an office in Maryland that covers Maryland, the District of Columbia, and Northern Virginia.
We are dedicated to providing exceptional customer service at every process stage. Contact us today to learn more about our asbestos removal services, or request a quote now!
Waco Inc. offers complete HVAC systems that include: fabrication, installation, renovation, and replacement services. With over 50 years of experience, our highly qualified technicians have what it takes to handle large commercial buildings and industrial facilities , from replacing a single chiller to renovating an entire HVAC system.
The term “industrial HVAC” can refer to an HVAC system used in an industrial facility, or a more general term for an HVAC system used in a large building like a hospital or large business. At Waco, Inc, our specialty lies with HVAC services for industrial facilities, and we’ve put together this guide for existing and potential customers. It outlines the types of equipment used and how they differ from residential units.
HVAC Systems for Industrial vs Residential
Industrial HVAC systems provide heating, cooling, and ventilation to larger facilities, such as chemical processing, manufacturing, power generation, and water treatment plants. While they follow the same basic operating principles as residential HVAC units, they are greater in capacity and complexity. Additional concerns such as excessive heat generation from equipment or toxic fumes, require greater attention than one would expect from a residential or commercial building. That’s why it is essential to partner with an experienced industrial contractor when you want to upgrade or replace a system. They will have the knowledge and skills to ensure that the entire HVAC systems components function correctly as it pertains to the individual facility’s needs.
Types of Equipment Required for HVAC Systems in Industrial Facilities
Industrial HVAC systems consist of many components, which vary depending on the specific needs of the facility. The types of equipment commonly found in them include:
In HVAC systems, compressors reduce the volume of refrigerant gas, which increases its pressure and temperature. The high-pressure, high-temperature gas then enters the HVAC system’s condenser, which removes the heat it absorbed.
Air separators separate and remove entrained air from fluids. This function helps keep HVAC systems running efficiently and safely.
Chillers use water to transfer heat away from a space. They are available in two variations: water-cooled and air-cooled.
Control systems allow users to monitor and manage the operation of various elements within an HVAC system. Automated control systems enable any necessary HVAC system changes (e.g., increased or decreased temperature or airflow) to be made automatically.
Cooling towers are used in combination with chillers or condensers to remove heat from the facility. Their design and size vary depending on the cooling load of the facility.
Industrial facilities use fans for a variety of purposes. For example, they are used for exhaust, air intake, ventilation, and more.
Hot water or steam must be produced and maintained at much greater volumes in industrial facilities. Sizing and piping to the boiler is critical.
HVAC systems can be used to control humidity within an industrial facility. If the facility requires more moisture, the system may have a humidifier unit. If the facility requires less moisture, the system may have a dehumidifier unit.
Industrial Ventilation Systems
In addition to temperature and humidity, industrial HVAC systems are used to establish proper airflow within a facility. The ventilation components help purify and circulate air as needed.
Heat pumps extract heat from the air, water, or ground. They can be used to heat or cool a facility.
Rooftop HVAC Units
Rooftop HVAC units are installed on the roof of facilities. They use ducts to circulate the air into various zones of the facility.
Split HVAC Units
HVAC systems can be categorized into single-split and multi-split units. Single-split units require each indoor unit to have a corresponding outdoor unit, while multi-split units allow multiple indoor units to connect to one outdoor unit.
How Do Residential and Industrial HVAC Systems Differ?
Industrial HVAC systems operate similarly to residential HVAC systems. The main differences between them are:
Capacity. HVAC systems components for industrial facilities are much larger. A home or business might use a 5-ton unit while an industrial facility might use a 50 ton unit. Note: 1 ton is equivalent to 12,000 btu of cooling.
Location. HVAC systems at industrial facilities are generally located on the rooftop of facilities or in a courtyard where both noise and heat can be reduced while in operation. Most residential HVAC systems are commonly located near the home on the ground floor.
Complexity. HVAC systems at industrial locations are more complex and modular in design than residential HVAC systems. This means that multiple HVAC units will have all of the electrical and automatic controls in one panel box. This is critical for proper climate control and any adjusting as required.
HVAC System Solutions at Waco, Inc.
The experts at Waco, Inc. are here to help with your industrial facility’s HVAC needs. Whether you require a new installation or replacement assistance, we’ve got you covered. To learn more about our HVAC system capabilities, contact us today. To discuss your project requirements with one of our representatives, request a quote.
Piping systems can be broadly divided into two categories: process piping and plumbing. When selecting the right piping for your operation, it is important to understand which piping you need for your application. Both process piping and plumbing offer unique benefits, and each must comply with specific industry standards and material requirements, depending on their use.
What is Process Piping?
Process piping refers to the system of tubes, pipes, hoses, valves, flanges, fittings, gaskets, and other components specifically used in manufacturing and conversion operations. Process piping arrays are specifically used to mix, separate, transport, and otherwise control the flow of fluids from one point to another. Most manufacturing processes require process pi
ping to facilitate the conversion of raw materials into finished products such as beverages, chemicals, pharmaceuticals, textiles, and paper products.
Process piping is used to convey gases and liquids for a wide range of industries and applications, including:
Oil and Gas Processing
Food and Beverage Processing
Power and COGEN Plants
Aerospace and Automotive Manufacturing
Wastewater and Water Treatment
Since process piping is in direct contact with a product that could be acidic, caustic, corrosive, or toxic, it is manufactured in a variety of materials. These include 304 or 316 stainless steel, Inconel, fiberglass resin, chrome moly, heavy wall carbon steel, and many others. In some cases, the actual pipe is internally lined with a glass, plastic or epoxy coating for protection.
What is Plumbing Piping?
Most of the utility systems and equipment in a commercial building or home are connected with piping that is considered plumbing. This would typically include piping to showers, faucets, toilets and drains. Common materials used in plumbing systems are copper, carbon steel, brass, PVC, CPVC, and other plastic types.
Process Piping vs. Plumbing: Key Differences
Plumbing systems must comply with a variety of codes, regulations, and industry standards for installation, maintenance, and inspection. Plumbing is typically found in heating and cooling, waste removal, and water distribution operations. In order to meet regulatory standards for corrosion resistance and strength, copper and plastic are the most popular plumbing materials. Plumbing equipment must also be built to comply with standards specific to its intended use.
There are two primary differences between process piping and plumbing. These include:
Building Codes. While detailed building codes govern the materials, size, and configuration of plumbing within a facility or system, process piping must meet far fewer requirements. Process piping is less regulated and can be designed with materials that are particularly suitable for the process application at the engineer’s discretion.
Purpose. Plumbing and process piping have different purposes. For example, if your system is used to transport water to the facility and move wastewater away, it is a plumbing system. If your piping system conveys, mixes, or removes chemicals, water, gases, and other fluids that are incorporated into or in direct contact with the finished product, it is process piping.
Process Piping Contractor Services at Waco, Inc.
Waco, Inc. specializes in the development of custom piping systems for heavy industrial processes where reliability and dependability are a must. Our superior craftsmanship, consistent performance, and attention to our in-house quality assurance guidelines create an exceptionally precise piping system guaranteed to meet the needs of even the most complex applications. We maintain records for complete verification and testing of materials and components to ensure optimal compliance.
Our extensive selection of piping services includes:
Sanitary Stainless Steel
Air / Instrumentation
Large and Small Bore Piping
Extensive In-House Fabrication / Storage
Process Skid Packages
Hi Purity Systems
Natural Gas and Fuel Piping
Shutdowns / Outages
Steam / Condensate Piping (R-Stamp)
Process Piping Experience
Waco, Inc. is the go-to provider for complex industrial process piping projects. Since 1963, we have served businesses, industries, and institutions while completing complex projects for some of the nation’s largest, most established Fortune 500 companies. We have decades of experience, adhere to safety and regulatory standards, and maintain a reputation for completing complex jobs on time and on budget. This makes us the company of choice for custom piping solutions, from design through completion. For more information on our process piping capabilities, contact us today or request a proposal for your next project.
Asbestos is a material that poses little risk when undisturbed. However, this naturally occurring mineral can release microscopic fibers into the air when disrupted, making it very dangerous if ingested or inhaled. The fibers enter the body and lodge in the lining of the chest, abdomen, and heart cavity. Over time, it causes irritation and life-threatening conditions such as lung and pulmonary disease and mesothelioma. In this blog, we’ll answer some of the most common asbestos questions to give you a thorough overview of this material.
Where Is Asbestos Found in a Commercial or Industrial Building?
Click to Expand Asbestos was seen as a highly desirable commercial and industrial building material because the fibers were insulating, fire-resistant, and added no weight but significantly increased the strength of the material to which it was added. It can be found in churches, schools, and large industrial facilities built before 1980 in the following places:
Cement pipe and conduit
Drywall joint compound
Floor tiles and adhesives
Insulation around boilers, ducts, pipes, sheeting, and fireplaces
Roofing shingles, flashing, and adhesives
Sprayed on ceiling material
Window Caulking and Glazing
Products Containing Asbestos
Asbestos is included in a variety of products, including:
Brake linings and clutch pads
Sprayed-on fireproofing and insulation in buildings
Putties, caulks, and cements, such as in cement pipes used for carrying chemicals
Fume hoods and lab benches
Wall and ceiling texture
Insulation for ducts, pipes and boilers
Siding shingles on commercial and residential buildings
Wall and ceiling insulation
Where Is Asbestos Found in a Home?
Homes built after the 1920s and before 1980 likely have some form of asbestos. Even floor tile installed in the 1980’s may be asbestos containing. It was used in a variety of building materials until the danger was recognized, and the mineral was regulated for most uses. Structures that have not already undergone some type of remodeling and asbestos remediation may still have asbestos-containing materials inside or outside the building, including the following.
Backing of vinyl sheet floor coverings
Compressed asbestos sheets
Insulation below a wood heater
Internal walls and ceilings
Loose-fill attic insulation
Vinyl floor tiles
Backing for electrical meter boards
Eaves and gables end
Insulation for hot water pipes and tank
External building siding
Is Asbestos Still Used Today?
Asbestos became highly regulated in the U.S. between 1973 and 1990. Gaskets, brake pads, and some products containing less than 1% asbestos are exempt and still sold in America. The exemption states that warning labels aren’t necessary for products containing less than 1% asbestos or those that will not release asbestos fibers within normal use. The list of products regulated in the U.S. include:
Asbestos wall compound
Asbestos fireplace decorations
Asbestos filters for pharmaceutical manufacturing
Asbestos flooring felt
Asbestos paper products
Friable asbestos pipe and block insulation
New uses of asbestos after August 25, 1989
Spray-on coatings containing more than 1% asbestos
Industry Leading Asbestos Abatement Services
Asbestos abatement requires skill, training, and experience. Since 1979, Waco, Inc. has successfully removed asbestos in thousands of private residences and commercial facilities. We are proud to be recognized as an industry leading environmental contractor in the development and completion of asbestos removal and disposal, and we serve Virginia, West Virginia, Maryland, District of Columbia, North Carolina, Tennessee, and South Carolina. Contact us today if you have questions about our services or submit a quote request for your project.
Mechanical contractors oversee mechanical construction, replacement, and repair projects in a range of industries. Their responsibilities vary depending on the project, but mechanical contractors are often in charge of supervising other mechanical workers, scheduling subcontractors, and making sure mechanical systems are installed correctly and within budget. They work in a variety of areas, including process piping, HVAC systems, industrial process equipment, structural steel installation, and more.
The role of a mechanical contractor is essential to the success of a range of projects and day-to-day operations.
What Types of Projects Require Mechanical Contractors ?
From troubleshooting and redesigning faulty systems to installation, maintenance, and repair, mechanical contracting is a multi-faceted job. Mechanical contractors respond to the needs of the particular job site and commonly provide services such as:
No matter where they work or what kind of machinery or equipment they’re dealing with, mechanical contractors are expected to coordinate work between their team and other contractors while staying on schedule and keeping within the budget. It’s a job that requires creativity, problem-solving and decision-making skills, a high level of organization and time management, and strong communication abilities to ensure clear explanations of tasks.
Mechanical Contractor vs. Mechanical Engineer
It’s important to note the difference between a mechanical contractor and a mechanical engineer. The engineer designs systems and components and oversees the production process. The contractor takes over at that point to install the system or component for a client. Both roles contribute to the success of a project, and it’s important to have highly-skilled, experienced professionals in each of those positions.
Mechanical Contracting Services from Waco, Inc.
Founded in 1963, Waco, Inc. has grown to incorporate a wide range of products and services. Over the years, we have served a number of industries with mechanical and environmental contracting services, and we’ve had the pleasure of completing a variety of complex projects for prominent Fortune 500 companies.
With locations in Virginia, North Carolina, and Maryland, we offer mechanical contracting solutions throughout the Mid-Atlantic region with a focus on productivity, safety and regulatory compliance, adherence to schedules and budgets, and professional customer care. To learn more about mechanical contracting and what we can do for you, contact us or request a quote.