STJH-INSTRUMENT-TEST-PORT-AIR-DUCT-1IN-INSULATION

Instrument Test Port for Air Duct 1-Inch Insulated

Reusable probe access through a standard one-inch insulation layer.

The raised neck keeps the access point reachable above insulation.
A reusable locking plug supports repeated commissioning visits.

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Product Introduction

The raised cast body carries the measurement opening beyond the duct insulation. A cam-action closure expands the neoprene plug inside the bore, allowing repeated probe insertion without cutting and resealing a new hole.

Key Features

The raised neck keeps the access point reachable above insulation.
A reusable locking plug supports repeated commissioning visits.

Technical Parameters

Insulation Accommodation	1 in. (25.4 mm)
Internal Diameter	1-1/16 in.
Body Material	Cast zinc alloy
Cap Material	Zinc-plated steel
Plug Material	Neoprene
Closure Mechanism	Cam-action expansion plug
Temperature Limit	180 °F (82 °C)
Mounting Gasket	Flat neoprene
Instrument Access	Removable plug, direct probe insertion
Customization	Available for the intended instrument access and insulated duct arrangement.

Applications

Pitot-tube traverse points
Temperature-probe access through duct insulation

Solutions for Your Application

Insulation hides a flush measurement hole.

The one-inch neck brings the removable closure to the insulation surface.

Repeated drilling damages the duct wall.

The permanent fitting provides a reusable access point.

Available Options

Mounting sealant
Instrument-compatible location layout

Planning a Instrument Test Port for Air Duct 1-Inch Insulated specification?

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

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