Three-quarter view of a heavy-duty bubble-tight isolation damper

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Bubble-Tight Isolasi Damper

A heavy rectangular isolation damper whose solid butterfly blade compresses a mechanically retained perimeter seal under high closing torque.

Solid Butterfly Isolation Blade
Mechanically Retained Perimeter Seal
Double-Gland Axle Packing
Heavy Flanged Channel Frame

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Perkenalan produk

The bubble-tight isolation damper uses one rigid rectangular butterfly blade inside a heavy flanged channel frame. When the actuator rotates the blade to closed, a continuous silicone seal is compressed against the seat around the complete perimeter. The drive axle passes through a double-gland stuffing box, and outboard bearings keep the blade aligned without placing the bearing races in the air path. Stainless-steel construction and compatible coatings allow the assembly to serve isolation, wash-down and decontamination boundaries.

Fitur utama:

A single rigid blade provides an uninterrupted sealing face without intermediate multiblade joints.

The perimeter seal is mechanically fastened to the blade so it can be inspected and replaced without welding.

Double-gland axle packing restricts leakage around the rotating shaft where it exits the pressure boundary.

External relubricable bearings carry radial load while remaining accessible outside contaminated airflow.

Kekhawatiran produk pelanggan

Bubble-tight service demands uniform perimeter compression, controlled shaft leakage and a frame stiff enough to remain square under differential pressure.

A multiblade damper leaves several blade-to-blade leakage paths at a critical boundary.One solid butterfly blade closes against a continuous seat with no intermediate blade joints.

The axle penetration leaks even though the blade perimeter is fully seated.A double-gland stuffing box seals around the rotating shaft outside the primary blade seal.

High differential pressure deflects a light frame and unloads part of the gasket.Heavy channel construction and a reinforced backing plate maintain seat geometry under closing load.

A damaged perimeter seal requires replacement of the complete blade assembly.Mechanical seal retainers allow the gasket to be removed and renewed as a service component.

Aplikasi yang Tipis

Biocontainment duct isolationPharmaceutical decontamination zonesHigh-integrity laboratory exhaustFilter housing isolation boundariesContaminated process-air shutdown

Parameter teknis

Representative construction data for a heavy-duty rectangular bubble-tight isolation damper are shown below.

Bahan inti	Solid 304 or 316 stainless-steel butterfly blade with continuous silicone perimeter seal
Ketebalan Panel (Panel Thickness)	2.7 mm solid rectangular blade plate
Efektif lebar	254–1130 mm nominal clear opening width
Panjang maksimum	Up to 1321 mm nominal frame height
Baja menghadap ketebalan	2.7 mm stainless or coated-steel flanged channel frame
Kepadatan inti (core density)	Approximately 8000 kg/m³ for austenitic stainless-steel blade construction
Konduktivitas Termal (Thermal Conductivity)	Approximately 14–16 W/(m·K) for 304 or 316 stainless steel
Permukaan selesai	Mill-finish stainless steel or industrial epoxy coating with silicone blade seal
Jenis Bersama	Flanged channel frame with solid butterfly blade, bolted seal retainer and double-gland axle stuffing box
Customization (Kustomisasi)	Tersedia berdasarkan aplikasi yang dimaksudkan dan lingkungan operasi.

Pilihan yang tersedia

304 or 316 stainless-steel constructionElectric or pneumatic high-torque actuatorOpen-close position switchesIndustrial epoxy or polyester coating

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