HVAC & ELECTRO MECHANICAL

Air curtains are used at entry / exit points of climate controlled spaces to reduce building energy costs, keep environments sanitary through the elimination of flying pests and debris and ensure consistent building temperatures using an invisible un- obstructing flow of air. A good performing air curtain provides a laminar airstream that is uniform, forceful and quiet.

The major brands we deal with for HVAC products are : American Wheatley ; Ferguson Marsair

A humidifier is a device, primarily an electrical appliance, that increases humidity (moisture) in a single room or an entire building. In the home, point-of-use humidifiers are commonly used to humidify a single room, while whole-house or furnace humidifiers, which connect to a home's HVAC system, provide humidity to the entire house. Medical ventilators often include humidifiers for increased patient comfort. Large humidifiers are used in commercial, institutional, or industrial contexts, often as part of a larger HVAC system.

PVI specializes in manufacturing commercial ASME water heaters that are right-sized to provide the optimal balance between BTU input and storage. Available in a wide range of energy sources including gas, electric, steam, boiler water and oil, our Dynamic Water Heating solutions feature energy inputs from 199 MBH – 7000 MBH and range from instantaneous on demand water heating to storage type heaters. Fabricated from corrosion-resistant AquaPLEX duplex stainless steel, our long-lasting water heaters are extremely durable, require no linings or anodes, and include the best warranties in the industry.

Stand blast waves up to 2 bar reflected without damage. Customization of higher blast grade is upon request.

The Valves used in HVAC applications are specifically designed to meet the process conditions which characterize the heating and cooling fluids. Low pressure drop, Minimum turbulence, Clearance for insulation etc. are some of the requirements of HVAC Valves. The following types of valves are used in a HVAC circuit:

Check Valve, Butterfly Valve, Balancing Valve, Air release Valve, Relief Valve, Ball Valve etc.

Automated valves which are pneumatically or electrically actuated are also used.

A dehumidifier is an electrical appliance which reduces and maintains the level of humidity in the air, usually for health or comfort reasons, or to eliminate musty odor and to prevent the growth of mildew by extracting water from the air.

The air inside a room should not be too dry but most of all not too humid. This applies to both industrial and commercial as well as to private rooms. After all, a balanced room climate not only proves advantageous for the building structure and sensitive products but also for human beings. With their innovative high-quality dehumidifiers, Trotec offers the perfect solution when it comes to keeping rooms dry – no matter in which sector! The modern industrial desiccant dehumidifiers keep the water content of the air at a moderate level, exactly as the user wishes.

In case of leakage, the controller unit will shut down the power supply of the cooling installation..

Find for all measured values the right meter: Find professional leak detectors! Check out our high quality devices now! DVGW-tested. long-term quality. testo high speed printer. one-hand operation. Graphic color display. Types: Flue gas analyzer, Emissions analyzer.

Brief description:

• Two modes of operation: leak detection and cable location
• Storage of 31 signal level with a graph displayed
• Visual indication of the signal on the display: scale, graph and spectrum
• Graphic visualization (moving chart) of sequence of measurements, max and min signal levels
• extra function of energized cable detection underground
• Sound indication
• Protection from random acoustic noise
• Choice of bandwidth
• Two-segment indication of frequency spectrum (and “filtered”) signal
• Light weight
• Comfortable to wear for long terms
• LCD display

Application:

• water leak detection from the pipelines (plastic or metal) underground up to 3 m depth
• water leak detection inside the house
• detection of energized cables underground up to 3 m depth
• measurement of the depth by indirect electromagnetic method

FC-BRV-02 rapid blast dampers are specifically developed for those applications where high air flow rate and blast protection are required. It could stand the over pressure up to 200KPa reflected with long duration and shut off in milliseconds. It also could stand multiple blast impacts and maintain full functions after blasts.

FC-BRV-02 rapid blast dampers could serve wide range applications, including civil defense, OGP, nuclear power, chemical, etc.

• Standing strong blast impulse
  Being able to stand multiple blast impacts and maintain all functions after blasts
• Unparalled rapid response
  Being able to completely close within 8ms under 200KPa peak pressure reflected, which assures the safety by minimizing the passing through impulse
• High ventilation volume
  High air flow based on normal open position
• High corosion resistant performance
  Being made of chemical-resistance materials and fit for all corosive conditions
• ATEX certified
  Safety work in explosive environments

A chilled water valve is often utilized in air conditioning systems, as they need to transport chilled water as part of the process of cooling down air before it is released as a circulated product.

Our inertial filters are a high efficiency filter without mobile components, exploiting the inertia principle. On these basis we developed a range of filters, which combines important construction and functional advantages, particularly:

• > high and continuous efficiency with high working reliability (characteristic documented by several Excellence Certificates issued by our customers);
• > the capacity to treat large air volumes in heavy conditions (i.e. desert environment);
• > minimum installation dimensions;
• > low and constant pressure drops;
• > continuous working;
• > application and use versatility;
• > easy installation;
• > low environmental impact, the filters elements are cleaned, not replaced and are completely recyclable.

The filter is normally defined self-cleaning as the sands divided from the flow, are collected in a suitable duct and ejected continuously by a secondary fan. Anyway it is good rule, with marine/salty environment, with particular moisture, sand storm, etc. to provide periodically for an inspection of the filtering cells and possibly for a cleaning of these.

Working principle

The filter is defined “inertial” because, if an air flow containing the dust particles or other impurities undergoes a direction change, the particles are subject to the force of inertia which makes them follow the direction of the original motion. The difference of kinetic energy that the particles with different masses have, helps the separation of the impurities from the air flow. The filter is formed by one or more assembled modular inertial cells, through which the dusty air undergoes an acceleration and a sudden change of direction. The air is separated from the dust crossing special slots. The dusts highly accelerated, maintain a rectilinear direction, go inside the cell and are conveyed in a collecting duct. The dusts, are, then, sucked and ejected by a secondary fan. Such fan, duly designed*, is usually supplied with the filter. The secondary fan has to be suitable to transport dusty air and must have an air flow of 10% (about) of the primary fan air flow

FC-BRD-01 series blast doors are designed to block the blast waves through the passage ways into the protected buildings. Its steel structure assures the reliable protection against blast impacts under tough conditions such as high temperature or fire.

FC-BRD-01 series blast doors could serve wide range of applications, including civil defense, OGP, new energy and other applications where blast-resistant protection is required.

FEATURES& BENEFITS

• Strong blast resistance
  Being able to stand blast impacts with peak pressure up to 7 bar for long duration.
• Fire-resistant
  3-hour fire rating for the toughest scenarios.
• Air tightness
  The seal of door frame ensures the good performance of tightness.
• Different colors for options
  Door’s color can be customized upon requests.


Blast type test done by ASTM F2927(2012) at Intertek lab

Fire type test done by NFPA 252(2017), CAN/ULC S104(2015), UL 10C(2016), UL 10B(2015), at Intertek lab

FC-RBV-11 high performance blast valves are specifically developed for those applications where protection from extremely high pressure and dual side protection are required. Its state of art design assures it provides the high impulse block rate against blast waves, which makes it one of the best safety solutions in the world.

FC-RBV-11 high performance blast valves could serve wide range applications, including civil defense, OGP, nuclear power, chemical, etc.

• High performance of blast resistance
  Innovative tortoiseshell design to ensure high performance of blast resistance against blast waves with peak pressure more than 13 bar reflected by long duration and multiple blast impacts and maintain all functions after blasts.
• High performance of impulse block rate
  Unique tiny blade design enables rapid response to blast waves to assure approximately 100% impulse block rate.
• Automatic-reset
  Being able to retrieve ventilation function automatically after the blast.
• Double acting
  Being able to provide protection from both positive pressure and negative pressure.
• Excellent corrosion resistance
  Being made of chemical-resistant materials ensures long term maintenance-free.