STJH-AIRTIGHT-SHUT-OFF-DAMPER-400X270-MANUAL

Airtight Shut-Off Damper 400 x 270 mm Manual Gas-Tight

Compact handwheel isolation with mechanically retained sealing.

Positive mechanical closure is retained after the operator releases the wheel.
The shallow rectangular opening suits small containment branches.

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Pengenalan Produk

A welded channel casing supports a sealing frame and driven blade mechanism. Turning the handwheel moves the blades through an over-centre linkage, pressing them against the seal and retaining the closed position without an external energy supply.

Ciri-ciri Utama

Positive mechanical closure is retained after the operator releases the wheel.
The shallow rectangular opening suits small containment branches.

Parameter teknikal

Opening	400 × 270 mm
Drive	Manual handwheel
Casing Thickness	3 mm
Casing Finish	RAL 7001 powder-coated galvanized steel
Seal Material	Neoprene rubber foam
Closed Leakage	Maximum 0.0028 (l/s)/m² at 2000 Pa
Closing-Direction Pressure	Maximum 5000 Pa
Seal Temperature Limit	80 °C
Locking Principle	Over-centre linkage
Penyesuaian	Available for the intended isolation duty and operating environment.

Applications

Manual isolation of containment ventilation
Maintenance shut-off on small laboratory ducts

Solutions for Your Application

The closed seal must remain engaged without electricity.

The over-centre mechanism retains compression mechanically.

A conventional balancing blade leaks too freely when closed.

A dedicated sealing frame receives the blade at the end of travel.

Pilihan yang boleh didapati

Drilled connection flanges
Open and closed limit switches

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