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DAMPERS

Pariinfra Industries manufactured industry leading temperature control dampers. Today, we offer a complete line of HVAC dampers and air control products including volume control, balancing, round, zone, fire, smoke, and combined models.

Pariinfra Industries is committed to customer satisfaction, and that’s why we custom build each of our dampers to suit your specific size and model requirements.

Introduction to Dampers:

Dual-duct terminal units are used in a special type of air distribution system where the main system has both warm air and cold air separately ducted to each terminal unit

Rectangular Damper Components--------->


Parallel V/s Opposed blade operation

Parallel blade operation is preferred when the damper accounts for a significant portion of the total system pressure loss. Parallel blades are used when greater control is required near top end of the volume operating range or for system requiring two position operation. Because of uneven airflow, do not use parallel blades upstream of critical components.


Opposed blade operation offers the best control over the entire operating range when the damper does not account for a significant portion of the total system pressure loss. Use opposed operation when it is necessary to maintain an even distribution of air downstream from the damper.


Applications

  • Balancing: Designed for balancing airflow in duct work systems. They are typically intended for manual operation with a locking handle and do not provide tight shutoff.
  • Face/ Bypass- Apair of side -by-side, top -bottom modulating dampers that operate opposite each other in a single duct to direct airflow either through the face of coil or to bypass around the coil.
  • Fire – Two-position dampers that are typically found where air ducts penetrate walls or floor. They are designed to restrict the spread of fire.
  • Smoke – Two position or modulating dampers specifically designed to restrict the flow of smoke in a building
  • Fire / Smoke- Twoposition or modulating dampers designed to meet the combined requirements of fire and smoke dampers. They are equipped with a thermal link and are factory assembled with an actuator.
  • Gravity, Backdraft or Barometric- found in exhaust fan duct work and boiler flue exhaust. They open when airflow (differential pressure) is present and closes when there is no differential.
  • Mixing- Sets of modulating control dampers that operate opposite each other to mix outside air and return air in maintaining a specified mixed air temperature.
  • Multizone- Pairs of modulating control dampers located at the air handling unit (AHU) that operate opposite each other to mix hot and cold supply air in order to maintain a specified space temperature to an individually ducted zone.
  • Round – Typically available in balancing or control damper types. They are commonly specified in higher static pressure or high flow velocity applications and are installed in spiral wound duct.
  • VAV box- Small modulating zone dampers that control the air velocity or volume entering an individual (thermostat) temperature-controlled zone.


Contact Our Team

Please feel free to contact us. We will get back to you within 24 hour. Or just call us now.

CALL US: +91-7042394846,
+91-7042394848, +91-7042394849

MAIL US: enquiry@ducttech.co.in, enquiry@pariinfra.com


Address: N-001 Site-5, Kasna Industrial Area, Greater Noida UP.

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