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1 Products availableLeading Manufacturer, Supplier & Retailer of High Temperature Dampers, SS Dampers, Diverter Damper, VIV Dampers and Radial vane damper with electric actuator linkage.
The butterfly or wafer damper can be a stack damper where leakage is not all-important. This type has also been tried as an isolating damper for flue-gas scrubbers. The butterfly damper is lightweight, simple, quickly actuated, and often comparatively low in cost. Its frame shape is a handicap in power plant work, however, where much ducting is rectangular. In process work, oval shapes adapt to that shape of duct, but conversion of a round butterfly to a rectangular one results in a louver damper. Occasionally, a double-disc butterfly appears, resembling a circular two-bladed louver damper.
Disadvantages of the butterfly damper include high leakage, blade flutter, tendency of the blade to warp, and large clearance needs for the open blade. The frame of most butterfly dampers is light, so twisting and distortion are dangers.
Most butterfly blades or discs are flat and single-thickness, so reinforcement is necessary for pressurized duct service. Either angles or simple bars on edge will stiffen the plate. Welding of the reinforcing can warp the plate badly, requiring straightening. Another disadvantage of reinforcing is the flow resistance it causes when the damper is open. Seals for the butterfly damper are usually simple, either flat metal-on-metal, or a soft seat resembling a tadpole gasket.
The drive for a butterfly damper is also simple, needing only 90 of motion. The torque requirement can vary widely over damper life, if corrosion and thermal effects are severe. Electric motors, air cylinders, and oil cylinders are able to actuate butterfly dampers with little difficulty
Fostered by a team of engineers, we have been able to bring forth the best-in-classHigh Temperature Dampers.Designedto perfection, these offered products are in compliance with the defined parameters of the industry. These precision engineered products are able to meet working demands in high temperature applications. The offered products are made available with water cooled/air cooled disc and shaft as well as in accurate construction standards. Our products are effective and economic solution in process control applications.
Features:
SS Dampersofferedcan be made available by us in different diameter options of DN40 to DN250 as well as in pressure ratings of up to 1.6Mpa. These dampers are suitable for use with sewage, fresh water, weak acid and other liquid fluids. Some of its features include available in working temperature range of 20 to 135 degrees; choice of different body finishes like grey cast iron, cast steel and others; light weight and easy to maintain; compact structure finish; allows for quick 90 degree on-off operations; allows for perfect sealing support without leakages; product made to undergo pressure test as per industry standards for flawless performance.
Installed behind grilles and diffusers, opposed blade volume control dampers help in adjusting air volumes to suit the requirements of the space as per the consultants design. The vertical louvers at 25 mm spacing facilitate even air distribution of the supply grille.
Features:
Although any two dampers can be used to divert flow, Diverter dampers are a common way to divert a flow of gas from one outlet to another.
Diverter dampers are simple and can withstand high temperatures. The blade is located out of the gas stream, so erosive particles do not impact directly on the surface. Disadvantages include the large side of the frame and drive, and flutter of the blade when moving across the flow or when splitting flow between outlets.
The frame of a diverter damper represents a large piece of ducting with a branch in it. This frame requires reinforcement to ensure that the seal seats will retain reasonable flatness at temperatures near 900F.
The blade itself is built up to give stiffness for tight sealing and flutter resistance. Hinging of the blade is at the duct top and at the aperture edge farthest from the source of hot gas. This mounting allows upstream pressure to help seat the blade tightly.
One type of a seal consists of a tadpole-type gasket or rolled-up inconel fiber sheet, which is compressed by the closing blade. The blade strikes a metal bar stop, so the gasket is not compressed beyond the desired shape. The gasket completely surrounds the exit port, leaving a clearance along the duct wall, so the blade can swing freely.
Diversion of gas-turbine exhaust is not the only application for the swinging blade damper. In a straight duct, it can act as a bypass damper, as in flue gas desulfurization work.
Advantages of Diverter Dampers:
Disadvantages of Diverter Dampers:
A Gas Flow Diverting Damper is a three way damper ideally suited for gas flow diversion in bypass systems and is used for alternate isolation. A diverter replaces two guillotines or louver dampers and is very cost effective as it utilizes a duct transition piece providing three ports. Only one actuator system is required, simplifying flow control and making improper isolation impossible.
They are used widely in bypass stacks of gas turbine combined cycle plants. The frame of a swinging blade damper represents a large piece of ducting with a branch in it. This frame requires reinforcement to ensure that the seal seats will retain reasonable flatness at elevated temperatures. The blade itself is built to give stiffness for tight sealing and flutter resistance. The hinging of the blade is at the top of the duct and at the aperture edge farthest form the source of hot gas. This mounting allows upstream pressure to help seat the blade tightly.
we have gained popularity among our vast base of clients by offering significantVariable Inlet Vane Dampers.Based on advanced mechanism, these offered products are in compliance with the defined parameters of the industry.
These innovatively designed products ensure optimum functionality along with below cited attributes:
With our rich industry experience and knowledge, we are engaged in offering high qualityVIV Damper.This damper is manufactured by making use of first-class raw-material and cutting-edge technology as per the set industry norms. The offered damper is widely used for regulating the airflow through fans, ducting, tunnels or chambers. Apart from this, we offer thisVIV Damperin various sizes in accordance with the clients specific requirements.
We have expertise in manufacturing of all type of Actuator operated dampers for HVAC AUTOMATION & Industrial Process Application.
Pneumatic Actuator Operated Damper
Positioned Actuator Operated Damper
Electric Actuator Operated Damper
Motor Operated Damper
Motorized Damper
With our rich industry experience, we manufacture, exporter trader and supply a supreme quality range ofMotorized Damper. Used for flow control system, the offered damper is manufactured by our experienced professionals using high grade raw material with the help of latest technology. Also, it is used to cut off central air conditioning. ThisMotorized Damperis available in varied technical specifications as per the need of our clients at pocket friendly prices.
Features:
We are widely acknowledged for offering the best-in-classPneumatic Isolation Dampers.Conforming to the defined parameters of the industry, these offered products are able to meet application as process control device. These offered dampers are provided with options of base rollers for mechanical as well as pneumatic/hydraulic sliding applications. Along with this, these offered products are able to meet application of in pre-spinning isolation, duct air as well as modulating service applications. These are also used for stack isolation where the dampers are applied to protect as well as reduce heat loss from boiler, exhaust system other working elements.
Features:
Clients can avail from us the best-in-class Pneumatic Dampers.Designed to excellence, these offered products are available with solenoid values/ limit switch and cylinders which ensure efficient functionality standards. Further, these products are provided with high performance damper seals that are available in different material choices like FPM, PTFE, NBR, FKM to give precision sealing in involved process as demanded by the customers. Base rollers are provided to deliver smooth handling. Further, their housing of high grade stainless steel and mild steel also make these to deliver consistent performance for long time periods.
Salient features:
Fire dampers are passive fire protection products used in heating, ventilation, and air conditioning (HVAC) ducts to prevent the spread of fire inside the ductwork through fire-resistance rated walls and floors. Fire/smoke dampers are similar to fire dampers in fire resistance rating, and also prevent the spread of smoke inside the ducts. When a rise in temperature occurs, the fire damper closes, usually activated by a thermal element which melts at temperatures higher than ambient but low enough to indicate the presence of a fire, allowing springs to close the damper blades. Fire dampers can also close following receipt of an electrical signal from a fire alarm system utilising detectors remote from the damper, indicating the sensing of heat or smoke in the building occupied spaces or in the HVAC duct system.
Regulations and fire test regimes vary from one country to another, which can result in different designs and applications.
FireShield Damper CE Marked Damper
Fire Shield CE Damper
CE Marked 'E' Rated Fire dampers used to prevent spread of fire maintaining compartmentation
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Description :
The Actionair FireShield range of quality engineered dampers are suitable for air conditioning and ventilation systems.
Following the introduction of the new Construction Products Regulation (CPR) on the 1st July 2013
Actionair, a brand of Ruskin Air Management Limited, offer a comprehensive range of CE marked fire dampers together with approved installation methods.
Under the CPR, manufacturers of construction products which are covered by harmonised European standards (hENs) are required to affix the CE mark and make a Declaration of Performance (DoP) for their products.
CE marked fire dampers must fully comply with the product standards: EN 15650:2010 Ventilation for Buildings - Fire Dampers and compliance is verified through assessment by a "Notified Body".
Construction :
The Type 1.4016 (430) Ferritic Stainless Steel folding blade curtain, providing maximum strength, form a fire shield. The wide profile blades maximise the damper free area and ensure compact grouping to minimise blade stacking height.
Optional blade construction Type 1.4401 (316) Austenitic Stainless Steel.
Stainless Steel Closure Springs
Stainless Steel constant tension springs are fitted and positioned out of the airstream to close and latch the damper, regardless of vertical or horizontal operation.
Spigotted Casing
The spigotted casing with continuously welded corners and spigot connections, makes these dampers suitable for inclusion into air distribution systems to the test methods of Eurovent Class A, B & C and HVCA Ductwork specification DW144.
These galvanised casings are manufactured with either Square, Rectangular, Circular or Flat Oval duct connections.
As an option, casings can be manufactured in Type 1.4016 (430) Ferritic or Type 1.4401 (316) Austenitic Stainless Steel.
Specification :
Fire Shield, CE Marked 'E? Rated Fire Dampers with stainless steel folding curtain housed within a galvanised steel outer casing with continuously welded corners and spigot connections comply with DW 144 class A B and C. The Fire Dampers to include a release cassette with memory metal spring, which will release the damper at 72 dec C, the cassette shall also be self-latching reset. Fitted with an external visual indication of the damper curtain.
Fire dampers shall comply with EN 15650 fire tested to BS EN 1366-2 classified to EN 13501-3. Dampers shall be approved by the LPCB certification scheme.
Fire dampers to be complete with factory fitted appropriate installation system, suitable for masonry wall, concrete floor or dry wall partition. (as specified)
Fire dampers to be type Fire/Shield as manufactured by Actionair.
Fire/Shield Dampers are designed for application in normal dry filtered air systems. If exposed to fresh air intakes and/or inclement conditions the damper should be subject to a planned inspection programme. Any specialists and/or aggressive applications (e.g. swimming pools) may invalidate our warranty, please refer to Actionair Sales Office.
All Fire/Shield Dampers should be tested by competent persons on completion of the installation and at regular intervals not exceeding two years.
Spring Return Damper Actuators :- EF Series AF Series NF Series
Electronic Fail-Safe Damper Actuators:- EF Series AF Series NF Series
Fire and Smoke Damper Actuators:-FSAF Series, FSNF Series FSLF Series FSTF Series
Non-Spring Return Actuators:-GM Series AMQ Series NM Series AM Series NMQ Series LM Series LMQ Series CMB Series LHQ Series
We are counted amongst as one of the leading manufacturers, exporters and suppliers of excellent quality Toggle Damper. This damper is used for the shut " off of gas mains and also for diverting and bypassing the gas flow. The offered damper is manufactured using world-class raw materials under the guidance of highly skilled professionals. To meet the international standards, this Toggle Damper is strictly checked on various parameters. It is available in different specifications as per the exact need of the clients.
We manufacture and supply Toggle damper which are used for the shut off of gas mains .Our Toggle Dampers are technically leak proof and carry high sealing efficiency which is achieved by means of an endless sealing element, upon which the valve disc is pushed down by the action of the damper main levers. When the damper is opened, the blade is initially lifted away from the seal in a coaxial direction and subsequently tilted about through the action of the toggle levers until it reaches a position parallel to the duct centreline. Operated in this manner the seal is not subjected to frictional wear. Our Toggle disc valves can be powered by any type of actuator. In combination with counter weights or spring action, our Toggle disc valves may serve as fast closing or opening emergency valves. These high performance Toggle Dampers are available with us on most affordable rates.
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