Mole provides high quality equipment to offshore oil and gas sector
Shut-Off Dampers (SCD) are provided to allow airflow isolation.
Mole HVAC Equipment Ltd offers various damper types and control options. These include rectangular or circular damper casings and manual or actuated control options.
Shut-Off Dampers (SCD) are provided to allow airflow isolation.
Mole HVAC Equipment Ltd offers various damper types and control options. These include rectangular or circular damper casings and manual or actuated control options.
| Shut-Off Dampers are provided to allow airflow isolation.
Mole HVAC Equipment Ltd offers various damper configurations: Rectangular Suitable for direct flange connection to rectangular ductwork or provided with circular insertion spigots to suit connection to circular ductwork. Circular Suitable for direct flange connection to circular ductwork. Blades Rectangular SOD’s are provided in single or multi blade configuration with opposed or parallel blade operation available. Circular SCDs are provided as single blade units only. Accessories Lockable hand quadrant as standard. Other control options are available including pneumatic or electric actuators. Application Typical application for our dampers: Oil and GAS Pharmaceutical Wind Farm and Renewable Energy Nuclear Industrial |
Material
Generally 2.0 or 3.0mm thick fully welded 316L St/St construction. Other materials and thicknesses are available to suit client requirements.
Available materials include:
– Stainless steel (304, 316 grade)
– Carbon steel (electro galvanised, pre-galvanised, painted or hot dipped galvanised (HDG) for thicker materials)
– Aluminum
For heavy duty material execution refer to Vent Stack product range.
Flanges
Flanges are formed from the parent material to provide a flange width of 40, 50 or 75 80?mm The flanges are normally drilled to the pitches and diameters defined in BS EN ISO15138:2018 or to the Client specification. At the customer’s request we may also deliver dampers with undrilled/ blank flanges.
Lifting
Where necessary or required lifting points are incorporated within the damper casing.
Sizes
Standard damper sizes are between 100x100mm and 2000x2000mm with a depth of 200mm. Larger damper sizes can be provided by combining multiple dampers. Smaller depths can be provided if required but the damper blades may extend beyond the casing.
Blades
2 x 1.5mm double skin, aerofoil construction. Spot welded and bolted to the damper shafts. Where necessary longer blades are additionally fitted with stiffening channels for increased rigidity. Standard design is for damper blades to be located within the 200mm depth of the casing.
Shafts
Shafts are 16mm Dia. and removable to allow bearing replacement.
Bearings
Low friction coated stainless steel bushes.
Seals
SODs are provided with side seals and blade stops to keep leakage rates to a minimum (without comproming any ATEX requirements)
Side seals manufactured from 0.25mm thick 316L St/St
Blade stops are manufactured from 1.5mm thick 316L St/St
Controls
Manual handle travel within a quadrant lockable in position allowing damper adjustment between fully open and closed positions.
Other control options, including pneumatic or electric actuator are also available.
Indication
316L Stainless steel open/closed indicators fixed to handle quadrant. Dampers can also be provided with high visibility indication beacons and, where required, with remote position indication (On/Off or continuous/analog)
Nameplate
316L stainless steel nameplate containing agreed information is attached to the damper casing
Hazardous Area
Our dampers are also available in hazardous area execution (ATEX Zone 1 and Zone 2).
