Douglass

Weldable Oval Tank Sight Glasses

Flanged sight glasses for tanks allow for a total view of the inside of a process. Depending on the fluid temperature and pressure to work with, a recommendation can be made on the best material of manufacture, types of crystals and types of gaskets. In this type of sight glasses, the width and thickness can be adjustable depending on the design pressure, without affecting the total length of vision. The usual measurements are for 50PSI, 150PSI and 300PSI.

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Flanged sight glasses for tanks allow for a total view of the inside of a process. Depending on the fluid temperature and pressure to work with, a recommendation can be made on the best material of manufacture, types of crystals and types of gaskets. In this type of sight glasses, the width and thickness can be adjustable depending on the design pressure, without affecting the total length of vision. The usual measurements are for 50PSI, 150PSI and 300PSI.

Body Manufacturing Materials Carbon steel with anticorrosive coating
Manufacturing Materials Buna, Neoprene, Teflon, Sanitary Rubber
Seals Sanitary, EPDM, Viton
Glass Manufacturing Material Borosilicate, Fluorsilicate, Quartz, Tempered glass, Polycarbonate
Type of Connection Sanitary Welding
Types of internal vision Free passage
Working pressure From 0 to 300 PSI
Working pressure -45°C – 1450°C

50 PSI

Weldable dimensions (external) F x B Visible dimensions (internal) E x A Flange thickness C x D
270 x 120 270 x 50 15 x 25
340 x 120 200 x 50 15 x 25
410 x 120 340 x 50 15 x 25
480 x 120 410 x 50 15 x 25
550 x 120 480 x 50 15 x 25
620 x 120 550 x 50 15 x 25
690 x 120 620 x 50 15 x 25
760 x 120 690 x 50 15 x 25

150 PSI

Weldable dimensions (external) F x B Visible dimensions (internal) E x A Flange thickness C x D
270 x 120 200 x 50 15 x 25
340 x 120 270 x 50 15 x 25
480 x 120 410 x 50 15 x 25
550 x 120 480 x 50 15 x 25
620 x 120 550 x 50 15 x 25
690 x 120 620 x 50 15 x 25
760 x 120 690 x 50 15 x 25

300 PSI

Weldable dimensions (external) F x B Visible dimensions (internal) E x A Flange thickness C x D
270 x 70 200 x 20 20 x 25
340 x 70 270 x 20 20 x 25
410 x 70 340 x 20 20 x 25
480 x 70 410 x 20 20 x 25
550 x 70 480 x 20 20 x 25
620 x 70 550 x 20 20 x 25
690 x 70 620 x 20 20 x 25
760 x 70 620 x 20 20 x 25

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