STJH-BUBBLE-TIGHT-ISOLATION-DAMPER-610X305

Bubble-Tight Isolation Damper 610 x 305 mm

A rectangular single-blade isolator for medium-width process ducts.

One blade spans the rectangular opening without intermediate blade joints.
External sleeve bearings allow service access from the duct exterior.

Request a Quote Browse Products

Product Introduction

A double-skin rectangular blade spans a 2:1 opening and turns about its central horizontal axle. The flanged body provides a bolted interface for isolation sections where a louver-style damper would introduce several blade-edge joints.

Key Features

One blade spans the rectangular opening without intermediate blade joints.
External sleeve bearings allow service access from the duct exterior.

Technical Parameters

Nominal Width	610 mm
Nominal Height	305 mm
Blade	Centre-pivoted rectangular double skin
Frame Materials	Painted steel, 304L or 316L stainless steel
Seal Material	Mechanically retained silicone
Shaft Construction	Full-length stainless steel axle
Flange Arrangement	Rectangular, front and rear
Shutoff Configuration	Bubble-tight per AMCA 500-D method
Maximum Velocity / Pressure	20.3 m/s / 2.5 kPa
Customization	Available for the intended isolation duty and mating ductwork.

Applications

Pharmaceutical process isolation branches
Biotechnology exhaust duct sections

Solutions for Your Application

Multiple blade joints complicate tight shutoff.

The single rectangular blade concentrates sealing at one perimeter.

Maintenance personnel cannot reach internal bearing supports.

Bearing housings are bolted outside the frame.

Available Options

304L construction
316L construction
Position switches and actuator mounting

Planning a Bubble-Tight Isolation Damper 610 x 305 mm specification?

Send us your dimensions, installation conditions, performance targets and required surface finish.

Talk to Our Team