O2 Deficiency Depletion Safety Alarm
A room oxygen monitor with a range of 0–23%, the Oxygen (O2) Deficiency Safety Alarm guards……...

In 1950, Bellofram introduced the original rolling diaphragm for a wide variety of industries and applications. Since that time, over one billion diaphragms have been used successfully throughout the world. The performance of the rolling diaphragm depends, in large part, on the preparation of materials. Raw materials are accepted after close scrutiny and absolute conformity to tight specifications.
World’s Largest Production Capacity
160,000 sq. ft. of manufacturing space
100+ molding presses in a wide range of sizes and capacity
Industry’s largest in-stock tooling inventory
In house custom mixing
In house tool design & manufacturing
Single or double coated
Broadest Design Parameters
Sizes range from 1/4″ to 32″ diameter
Elastomers for hostile environments
Temperature ranges from -120°F to +600°F
Fabrics for pressures up to 1,000 psi
Emphasis on Customer Service
Experienced application engineers
Knowledgeable sales staff
Fast turnaround on quotations, prototypes
Fast delivery-in ones or thousands
Primary Activity
Manufacturer of Elastomeric Diaphragms, control systems, diversified electronics and sensors.
A room oxygen monitor with a range of 0–23%, the Oxygen (O2) Deficiency Safety Alarm guards……...
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