Drop Through RAV

• The two ports, inlet and outlet, are vertically aligned and tend to be the same size.
• Drop-through valves are widely used for non-cohesive and free-falling dry bulk materials.

Blow-Through Rav

• Blow-through valves have troughs that connect to pneumatic conveying lines, hence they are installed directly in a conveying line without any intermediate equipment.
• Bulk materials are supplied to a valve via an inlet, then a rotor turns and drops the bulk materials into the trough where the conveying air blows through emptying the rotor pocket and transports the materials directly into a supporting system.
• Blow-through valves are utilized for sticky and cohesive bulk materials.

Side Entry RAV

• The inlet and outlet are offset from the valve’s housing vertical line.
• When a rotor rotates past a valve’s inlet, this offset permits an upcoming empty rotor pocket to only partially fill.
• Partial filling minimizes bulk material shearing.
• It also prevents jamming of a rotor caused by dry bulk particles trapped between the rotor and valve housing.
• The volumetric fill efficiency of an empty pocket is generally around 60%.

Abrasive Resistant RAV

• This is the most durable model available anywhere.
• Hardened rotor tips with UHMW/S.S. liners, premium Teflon lip seals and specialty (tungsten, chrome, or ceramic) wear coatings are standard. Manufactured especially for use with abrasive materials.

Flap Damper

• COMET flap dampers used for preventing reverse flow, in high close bypass duct and shut-off for maintenance. Suitable for use in gas duct of dense dust.
• Used for prevention of reverse flow in stack fan, in Boilers for power generation, Incinerators, Iron & Steel Plant, Cement Plant, Oil Refinery, De-NOx, De-SOx Plants, EP, Bag Filters, Coal Mills, etc.

Ball Valve And Butterfly Valve

• COMET manufacture and supply various types of valves for specific applications.