Dwyer Instruments A-331 Filter Vent Plug 320734-701 it is designed for low-pressure

it is designed for low-pressure steam applications

this shaft features a 1/4" keyway and a blower flat to ensure secure mechanical linkage between the motor drive and the blower wheel

Common Questions How does the AT-211 prevent false temperature readings

What is included in the 51758 Air Dial Kit

Dwyer Instruments A-331 Filter Vent Plug 320734-701 it is designed for low-pressureThe Dwyer Instruments A 331 is a professional grade 1 8" NPT filter vent plug engineered to protect sensitive pneumatic equipment from intake contaminants. Constructed with a durable nylon body and a sintered metal filter, this component is essential for maintaining the integrity of differential pressure gauges, such as the Magnehelic and Capsuhelic series, in high dust or industrial environments. The porous sintered metal element provides excellent