HVAC control system

A HVAC control system is a computerized control system for climate control in buildings. Stand alone control devices may be pneumatic or electronic. Some may have microprocessors, but to be considered a "control system" for the context of this article, computerized and networked are expected requirements. HVAC stands for heating, ventilation, air-conditioning. Often, these integrate fire, security, and lighting controls into one system. These systems typically use one or more central controllers to command and monitor the remote terminal unit controllers, and they communicate with one or more personal computers that are used as the operator interface. These control systems are typically used on large commercial and industrial buildings to allow central control of many HVAC units around the building(s). The latest systems use ethernet for communications between central controllers--allowing remote access from a web browser.

Wire Mesh - Hardware and Industrial Cloth,,Hardware and Industrial Cloth Comparisons

Hardware and Industrial Cloth, available in a welded or woven construction, is widely used in the farming industry and serves many other applications due to its corrosion resistant and lightweight characteristics.
Product Finishes
Hardware and Industrial cloth can be hot-dip galvanized or pre-galvanized woven or welded wire mesh. Hardware cloth is a light gauge (usually between 2 and 8 mesh).

Hardware and Industrial Cloth Comparisons
Welded Hardware and Industrial cloth holds its shape better when cut because the weld holds the wires in place. For a given size, woven wire mesh is usually more flexible.

Pre-galvanized wire mesh is the most economical but is more prone to corrosion because the galvanized surface is burned off where the wires are welded. However, pre-galvanized is more attractive in appearance than hot-dip galvanized.

Hardware and Industrial cloth is not recommended for animal cages because the galvanizing is toxic if ingested.

Wire Mesh - Square Welded - Weldmesh,Wire Mesh - Square Welded

Wire Mesh - Square Weave
Woven is the most popular wire mesh. It is available in a wide range of meshes, weaves and opening sizes.
What is Woven Wire Mesh?
Woven wire mesh is cloth made from wire strands. The wires that make up wire mesh run parallel to the width of the roll (cross wires) and parallel to the length (line wires). The cross and line wires are interwoven. That is, the wires cross over and under each other. Wire Mesh can be woven in a number of different styles depending on the material type, wire diameter, and opening size (see weave styles). Woven wire mesh is available in rolls, sheets or panels, and cut-to-size.

Welded wire mesh typically has larger openings than woven wire mesh. With the wire strands welded at each intersection, welded wire mesh is more cabable of maintaining its shape when stressed.
What is Welded Wire Mesh?
In welded wire mesh, the wires that run parallel to the width of the roll are placed on top of the wires running parallel to the length. Then, the wires are welded where they intersect.

Manufacture Steel Weld Mesh used as a matting bars for concrete floating floors

The steel mesh is used as a matting bars for concrete floating floors, with the specifications as follows : 100mm x 100mm square opening, 10 to 14 mm dia. round rod and with pvc coating.
It is used in Warehouse racking and industrial shelving. UPS got to be the world's largest package delivery company one parcel at a time. Their operation specializes in huge numbers of small orders. Beaver's warehouse fit the company's needs perfectly: a system for non-palletized cartons.
Structural steel aisle guides and full-width structural steel entry guides protect the frames. These features also help guide the warehouse operator into the aisles. The system also features a custom coloured racking and beam location labeling system. It works, and it looks great.
General Auto Parts

When General Auto Parts began their first physical move in 17 years, they turned to Beaver for complete project management and guaranteed results.

The new facility is divided into four distinct areas, each one engineered to maximize picking efficiency and reduce forklift travel.

Manufacture Steel Flooring Weld Mesh

Weldmesh® is one of the most versatile of all Wire Cloth products. Weldmesh® is a welded steel wire mesh manufactured from bright drawn mild steel wire, electrically welded at all intersections.

Wire Mesh Weldmesh® Product Description
Weldmesh® is produced with a copper washed finish and can be hot dipped galvanized after manufacture. Because it is welded, it can be cut or bent to the shape required without the wires falling apart and forms its selvage when cut flush.

Weldmesh® is available in panels in a variety of wire diameters and meshes up to 3 inches.

The physical properties of the wires used are rigidly controlled to produce a welded mesh with a maximum weld strength.
Wire Mesh Weldmesh® Product Features
· Versatile
· High strength
· Easy cutting, shearing
· Flush edge finish
· All intersections welded
· Solid construction
· Wires hold together
· Easy handling
· Cutouts made easily
Wire Mesh Weldmesh® Product Applications
· Cages · Panel Inserts
· Lockers · Safety Barriers
· Security Guards · Racking/Shelving
· Pallets · Containers
· Grilles · Litter Bins
· Bins/Baskets · Partitions
· Machine Guards · Ceilings
· Fencing · Girder Lagging
· Window Guards · Trailer Sides
· Gates · Stairway Guards
· Catwalk Guards · Balustrading

HVAC From Wikipedia, the free encyclopedia

HVAC (pronounced either "H-V-A-C" or "H-vak") is an initialism or acronym that stands for "heating, ventilating, and air conditioning". HVAC is sometimes referred to as climate control and is particularly important in the design of medium to large industrial and office buildings such as skyscrapers and in marine environments such as aquariums, where humidity and temperature must all be closely regulated whilst maintaining safe and healthy conditions within. In certain regions (e.g., UK) the term "Building Services" is also used, but may also include plumbing and electrical systems. Refrigeration is sometimes added to the field's abbreviation as HVAC&R or HVACR, or ventilating is dropped as HACR (such as the designation of HACR-rated circuit breakers).

Heating, ventilating, and air conditioning is based on the principles of thermodynamics, fluid mechanics, and heat transfer, and on inventions and discoveries made by Michael Faraday, Willis Carrier, Reuben Trane, James Joule, William Rankine, Sadi Carnot, and many others. The invention of the components of HVAC systems went hand-in-hand with the industrial revolution, and new methods of modernization, higher efficiency, and system control are constantly introduced by companies and inventors all over the world.

The three functions of heating, ventilating, and air-conditioning are closely interrelated. All seek to provide thermal comfort, acceptable indoor air quality, and reasonable installation, operation, and maintenance costs. HVAC systems can provide ventilation, reduce air infiltration, and maintain pressure relationships between spaces. How air is delivered to, and removed from spaces is known as room air distribution.[1]

In modern buildings the design, installation, and control systems of these functions are integrated into one or more HVAC systems. For very small buildings, contractors normally "size" and select HVAC systems and equipment. For larger buildings where required by law, "building services" designers and engineers, such as mechanical, architectural, or building services engineers analyze, design, and specify the HVAC systems, and specialty mechanical contractors build and commission them. In all buildings, building permits and code-compliance inspections of the installations are the norm.

The HVAC industry is a worldwide enterprise, with career opportunities including operation and maintenance, system design and construction, equipment manufacturing and sales, and in education and research. The HVAC industry had been historically regulated by the manufacturers of HVAC equipment, but Regulating and Standards organizations such as ASHRAE, SMACNA, ACCA, Uniform Mechanical Code, International Mechanical Code, and AMCA have been established to support the industry and encourage high standards and achievement.

stainless steel mesh floor. steel mesh floor panels

pen steel floor grating may be used for many industrial purposes such as stair treads, cat-walks, drain covers and floor grating. Grating comes with a smooth-surface grating, or serrated-surface "Safety" grating. Grating is available in standard mesh types and closed mesh types.

Please call for sizing and additional information.Open Steel Floor Grating
Bearing
Bars Type
19W4 Type
19W2 Type
15W4 Type
15W2
3/4 x 1/8 4.0 4.6 4.8 5.5
3/4 x 3/16 5.6 6.3 6.9 7.5
1 x 1/8 5.1 5.7 6.2 6.9
1 x 3/16 7.3 8.0 9.0 9.6
1 1/4 x 1/8 6.1 6.8 7.5 8.2
1 1/4 x 3/16 8.9 9.6 11.1 11.7
1 1/2 x 1/8 7.3 7.9 9.0 9.6
1 1/2 x 3/16 10.6 11.2 13.1 13.8
1 3/4 x 3/16 12.2 12.9 15.2 15.8
2 x 3/16 13.9 14.5 17.3 17.9
2 1/4 x 3/16 15.4 16.1 19.2 19.9
2 1/2 x 3/16 17.1 17.7 21.3 22.0