LUMIGLAS CIRCULAR SIGHT GLASS FITTINGS MODEL DIN28120 SIZE 125

PRE-ORDER.
Lumiglas, Germany

•GERMAN QUALITY
•Circular Sightglass Fittings Model DIN 28120 (Weld-Type)
•Application:
•Weld-on sightglass fittings for the observation of the internals of
pressure vessels, silos, mixers, separators, pipelines, etc.
•General:
•Sight glass fittings DIN 28120 are circular flanged sets suitable for
welding into or onto vessel walls, complete with relevant matching
seals and sight glass disc set between the weld pad and cover flange.
•They correspond in construction and assembly to the dimensions
and constructional guidelines of DIN spec No. 28120 covering sizes
DN 50 to DN 200.
•Based upon these standard thicknesses, distortion free location of
the sightglass is assured providing that the welding pad has been
correctly welded into or onto the vessel wall.
•Operating Conditions
•Standard fittings are available for pressure up to 235 psi (depending
on size, higher pressure rating on request). For temperature ratings
(depending on material selection) see the following diagram.
•Assembly
•After welding base flange 1 onto or into vessel wall, seals 3.1 & 3.2,
glass disc 4 and cover flange 5 are placed together in the order
shown.
•Then the nuts 2.2 are progressively tightened, always working
on diametrically opposed pairs of nuts at a time. Tightening torque
values are given in table on overleaf.
•Combinations:
•These sightglass units can be combined with Lumiglas luminaires for
use in hazardous areas as well as under all normal working conditions
(See Lumiglas Luminaire data sheets). The cover flanges can
be drilled and tapped for luminaires.
•Optional materials are available upon request. Please contact the factory.
Certifications / Testing:
•Chemical and Physical Test Reports will be supplied for the Weld Pad
only at No Charge for ASME Code Materials.