Cair Euromatic Automation Pvt. Ltd. Ahmedabad, Gujarat

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.

The Poppet damper resembles a globe valve, with a short lift directly from a circular port. It finds application primarily in baghouses. The seating must be tight, and an anti rotation guide for the disc spindle makes certain that the disc seal surface will repeat its positioning on the seat at each closing. Poppet Dampers are ideal for applications that require quick cycling time and tight shut-off. Poppet dampers provide isolation capabilities for bag house applications and incineration systems. Poppet dampers are used for multi-directional airflow control. They are engineered to control the reverse gas flow, outlet flow, and bypass flow of gases, in turn enhancing filtration, eliminating gas starving and reducing bag wear. Poppet valves employ a seal disc that is capable of extremely rapid actuation and used in critical gas ducting applications that require rapid diversion or isolation of gasses. Applications : Isolation of a single duct (two-way) Control flow from one gas path to either of two new paths (three-way) Control flow from two gas paths to either of two new paths (four-way) Performance advantages : 99.9 to 100% sealing efficiency One second or less cycle time standard design features Stainless steel push rod and seal disc Self aligning seal disc options : Configuration options (2-way, 3-way or 4-way) Pneumatic or hydraulic actuation Controls

CAIR EUROMATIC AUTOMATION PVT. LTD. has earned a reputation amongst its customers for quality, service and reliability. Our vast range of electrical actuator and valve automation products enables us to solve most flow control problems and the refreshing positive attitude and enthusiasm of our team reflects our willingness to satisfy the many diverse enquiries that we receive daily. The commitment of the whole firm and the techniques incorporated, together with the continual training of our personnel and the investment in research, means of production and quality control not only gives CAIR product a better Life Cycle Cost but also makes them some of the very best in the market.

Low Power Consumption, high efficiency and excellent weatherproof heavy-duty motor. All the joint on the housing are armed with waterproofing seal (IP67), which is appropriate for use in outdoor environment. Stabilized start speed to effectively avoid water hammering to prolonge the service of life tubes. Continuous mechanism position indication. Low noise level. Built - in Thermal Protection which prevent motor burning out. Auto declutch type manual override. (Model : MOD - 2-1 & 3-1, to MOD -12).

"Cair" offers damper valves used for IDOD fans and other controlling applications. Body Cl (IS 210 Gr. FG 200 220) WCB Disc CF8 CF8M CF3M WCB Power Coated Seat Metal to Metal Shaft AISI 410 Valve Type Centric Disc Butterfly Valve with Metal to Metal Body Type Short Wafer (Sandwiched Between Flanges) Seat Type Metal to Metal End Connection Wafer Sandwiched (Lug Type On Request) Pressure Rating PN 10 (Maximum) Oper. Temp, Range -25°C to 200°C (depending on MOC) Up to 600°C Seat Leakage Tight Shut Off (Batter then Class) 0.5 % Leakage Operation Hand lever for sizes from 40 NB to 150 NB Worm Gear Boxes for 200 NB to 300 NB.

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-class High Temperature Dampers.Designed to 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: Longer service life Efficient performance Smooth finish Robust construction

SS Dampers offered can 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.

Multi Louver Damper   The louver type of damper consists of several blades mounted parallel across a duct, with centrally pivoted shafts extending out through a frame and driven by a linkage. Louver dampers are versatile, able in theory to handle any application in the power plant.   Some of their advantages:   Fit anywhere in ducting, at any altitude. Compact, no bonnet, little external clearance needed. Lightweight Drive and linkage more readily accessible Control function simple with opposed blades. Thin metal blade construction gives quick response to thermal transients. Fast opening and closing. Low leakage to outside environment. Good modulation and control characteristics. Actuation power requirements are low. Normally does not require a support structure.   Louver dampers have basic disadvantages, however. Here's a partial list:   Large leakage perimeter. Leakage through seals goes downstream inside the duct. Comparatively high pressure drop because of blade and seal obstruction of flow. Obstructions such as seals, shafts, stops, and fasteners tend to catch ash and scrubber slop. Inherent flimsiness of long thin blades tends to promote flutter. Blades and seals, always in the flow, tend to corrode and erode more. Blades can buckle and wrap, causing leakage and lockup. Bearing troubles are possible. Inadequate drive power and blade strength to crush through concretions and force a seal. Larger flange-to-flange required to contain blade(s) in full open position. Sealing problems in dirty applications. More moving parts and thus increased maintenance   The drive for a louver are 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 louver dampers with little difficulty.   Louver dampers are best applied to balance or control flow. The normal leak path of 0.7% of duct area produces a three to five percent leak rate in average applications.   As a general rule, a damper should be used in the middle third of the control range for best results. This gives equal percentage in either direction should the need arise.   A variety of options are available. Metallic spring seals, sealed (dust tight) blade ends, shear seals, and many materials are available.   Leakage performance of a louver depends on ratio of flowing to shutoff pressure, design temperature, number of blades, and blade edge treatment. Since the first two are system related, the last two are the usual areas of improvement. Reduction of number of blades reduces leak path to the limit that a single blade has only perimeter leakage.

are the most effective type of damper for controlling the flow of gases with the least disturbance to flow in ducts. Each pair of blades is carefully fitted to ensure precise operation in opposing directions, and thus creating highly controllable passages for the gas. The frame is made from a formed or fabricated channel and is designed to withstand any system upset conditions. The blades are designed to adequately handle all loads, up to and including upset conditions with a maximum center span deflection determined by the engineering department so as to ensure smooth and trouble free operation. The drive shafts are supported in maintenance-free bearings. An adjustable floating packing gland seals the shaft passage through the damper frame. A special non-binding, fully adjustable external linkage is used to operate the damper. A wide variety of operators can be specified -electric, pneumatic, hydraulic or manual.

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: Aluminum construction Nylon bushing for friction free operation Manufactured in High Quality Mild Steel or Galvanized Iron. Designed to control air volume in all handling Accessories like grilles and diffusers. Opening Mechanism like Screw or handle types are available. Standard Finish: Natural anodized & Powder coated.

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 900°F.   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:   Good isolation Low pressure drop across the wide open damper Flow modulation may be possible Good for high temperature applications Blade can be insulated to mitigate condensation Seal air requirements lower than with louver type   Disadvantages of Diverter Dampers:   Movement is slow A large frame structure required Sensitivity of attitude is higher than for the louver damper Linkages exposed to flue gas Not much experience in coal-fired boiler applications Generally more costly than either the louver or guillotine on a per unit basis   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 embarked our presence in this discipline by offering qualitative Industrial Diverter. Designed to perfection, these offered products are able to meet specific application processes followed in areas like cement plants, power plants and others. The precision design of these diverter allows easy transfer of material from one feed point to other discharge points. These offered products are available with us in different technical specifications addressing divergent demands of the clients. Features: Longer service life Efficient performance Robust construction Resistance against corrosion

Country of Origin : India

Radial vane louver dampers have cantilevered or center-supported radial blades spaced around a circular frame are rotated by a linkage outside the ring frame. The blades usually turn in the same direction, so this damper imparts whirl to the air. Buffering and vibration, occurring in disturbed flow, can be dangerous. The Radial Vane Damper is predominantly used on fan inlet applications, offering an enhanced level of flow and pressure control. A Radial Vane Damper has multiple blades arranged around a central hub enhancing the performance of the fan by introducing swirl into the fan inlet providing an efficient method of control. "CAIR" Radial Vane Dampers can be fitted with any form of actuation allowing either local or remote modulating control. Engineered to ensure ease of maintenance and service without removing the damper from the fan and designed to withstand the high air velocities that can be experienced in use. "CAIR" Radial Vane Dampers are custom-engineered and manufactured to Customer Specifications depending on the application and performance required.

we have gained popularity among our vast base of clients by offering significant Variable 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: Longer service life Efficient performance Smooth finish Robust construction

With our rich industry experience and knowledge, we are engaged in offering high quality VIV 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 this VIV Damper in various sizes in accordance with the clients’ specific requirements.

  For ID Fans / Blower damper For Foot Mounting Actuator With Arm Linkage For Efficient Proportional Control & Controlling Air Flow Ideal for flue Gases / Combustion Damper for Gas Application

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 of Motorized 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 Damper is available in varied technical specifications as per the need of our clients at pocket friendly prices. Features: Consistent performance Robust construction Easy to install Sturdiness

We are widely acknowledged for offering the best-in-class Pneumatic 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: Made of high-grade stainless steel and mild steel Dimensional accuracy Anti abrasive finish Optimal mechanical strength Ask for Price

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:    Longer service life Robust construction Efficient performance Resistance against corrosion  

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 Dimensions : For Ducts 100 - 1250mm wide by 1000mm high or Ducts 100mm - 1000mm diameter Features : CE marked fulfilling the requirements of EN 15650 Approved by LPCB and conforms to LPS1162 issue 4 Fire tested to EN 1366-2 Classified to EN 13501-3 Corrosion tested to EN60068-2-52 Tested Installation Method to suit Concrete/ Masonry Floors & Walls and Dry Walls Unique Self-Latching & removable thermal release mechanism cassette tested to ISO 10294-4 Easy Single Handed Reset ASFP Grey book listed 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

An open channel gate valve in which the gate blade is slidably received in parallel grooves in a frame. The gate blade carries a sealing member of truncated V-shape, which engages a seat of truncated V-shape provided on the frame. Both the seat and sealing member are disposed in axially offset relation to the plane of the gate blade.   This invention relates to a valve for use in an open channel, and particularly a gate type open channel valve.   Some prior valves of this type have been provided with an elastomer seal to attain a tighter or better seal than attained with a plain gate. Plasti-Fab, Inc., of Tualatin, Oreg., has produced several versions of this kind of valve. In one form, the seal is mounted on the frame and engages the gate for its full travel. In another form, the seal is mounted on the gate, for full-travel seat contact.   Rodney Hunt Company manufactures a sluice gate called the "Glydaseal", purportedly under license from Ham Baker, Ltd., in which the gate has bonded to it a neoprene seal which faces in the direction of the flow axis. A mechanism, comprising a set of guide bars on the frame, engages and guides the movement of the gate and functions to wedge it against a PVC seat on the frame when the gate is closed. Adjustment of the tightness of the seal can be achieved by adjustment of the position of the guide bars toward and away from the seat.   Many prior low-leakage gate valves require machining operations, particularly on the seats. These operations are time-consuming and expensive. APPLICATION: These gates are embedded / wall mounted / fixed in between two parallel walls of an open channel or mounted at the end of an open channel to isolate flow within as well as out of an open channel. These are suitable for seating / unseating water head up to the height of shutter / gate / disc MOUNTING :Wall mounted / Channel mounted / Channel embedded. SIZES (W X H) : From 150×150 mm (6"x6") up to 3000×5000 mm (125"x200") Wall mounted / Channel mounted / Channel embedded. SEALING :Metallic / Nonmetallic WATER HEAD : Up to -50 TO 600° C ACTUATION : Up to door depth seating. End Connection Manual, Gear, Pneumatic, Electric