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Leading Manufacturer, Supplier & Retailer of Butterfly Valve and Air Balance Valve.
Butterfly Dampers are available as motorized, pneumatic or hand operated units. They can be supplied with accurate positioning actuators or as a simple open I closed configuration. The shaft stubs are bolted to the robust damper blade.This allows the flap to be replaced easily. Sealing strips are fitted to the damper casing and the damper blade closes against the strip.
The damper blade and casing flanges are laser cut allowingfor precision fitting holes and accurate alignment ofthe shaft stubs.The shaft stubs are fitted with stuffing glands to sealagainst a pressure differential where necessary.
The shaft stubs are bearing mounted and the non driven shaft can be fitted with limit switches. Standard sizes are available to match standard nominal bore ducting or pipe work but non-standard diameters can be manufactured to suit.This is particularly relevant where an existing damper needs to be replaced. Material of construction is mild steel. Stainless steel and high temperature versions with castable lining are available on request.
Air Balance Valves or Silo Safety Valves are used to protect bins and silos from over pressure and under pressure damage. Under pressure collapse of a silo may occur if a column of material that has hung up in the silo suddenly dislodges and slides down creating a vacuum above the material. For the prevention of over pressure damage the valve would typically be fitted to bins and silos that are fed by a pneumatic conveying line or fed from a bulk tanker
The settings of pressure and vacuum can be adjusted by changing the weights fitted to the sealing flaps. Standard settings are at +1.5 kPa and -1.5 kPa. The unit may not be used as a substitute for an explosion panel for potentially explosive products in the bin or silo. Typical material of construction is mild steel. Stainless steel units are also available. The silo safety valve can be ordered as an over pressure valve, vacuum breaker valve or as a combination of the two.
Standard sizes include: 300, 400 and 500. Other sizes and configurations are supplied on request.
Ankit Tyagi (Intech House)
C-20, Sector-10, Sector 10, Noida, Uttar Pradesh - 201301, India
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