Fluid sight glasses GN 743.1 offer a scratch proof sight glass of high stability. The placement of the seal on the outer diameter of the glass eliminates leakage independent from over or under tightening of the sight glass.
The outer diameter of these fluid sight glasses with recessed hex is matched to screw-in holes for pipe fittings according to DIN 3852.
The seal is embedded in a radial recess, and thus cannot be lost or squeezed out during tightening.
These fluid sight glasses can also be used on pressurized tanks. Tests regarding maximum pressure are available.
Assembly note:
For wall thicknesses below 0.16 in (4 mm), use GN 7430 thin hex nuts.
Specification
Body
Aluminum, fine turned
Type A and B: Plain finish
Type AS and BS: Black anodized finish
Reflector
Plastic
Technopolymer (Polysulfon)
Sight glass
ESG safety glass
Temperature resistant up to 356 °F (180 °C)
Seals
Rubber FPM (Viton®)
Identification by non-black coloring of the seal
This article is RoHS-compliant in application of Annex III., which means it complies with EU Directive 2011/65/EU, including extension (2015/863/EU), for restricting the use of certain hazardous substances in electrical and electronic devices. The Directive regulates the use of hazardous substances in devices and components. The implementation in national law is summarily described with RoHS(Restriction of (the use of certain) hazardous substances)).
Weight: 0.013 lbs
If weight is not listed, please contact our Sales Department for additional information regarding weight. Phone: 800-877-8351
