Din flanged double sightglass

Features

Body & bonnet

Body and bonnet designed according to API 594 held under pressure by bolts. Machined from high quality cast CF8M stainless steel. The sight glass is square in measurements smaller than DN65 and round in larger measurements to compensate the increase in pressure.

Tempered glass

Considered as a safety glass, Thermal tempered glass is a glassware with a low coefficient of thermal expansion, it means it wont crack like regular glass does. The flexibility and durability ensures makes it a popular choice for variety of uses. It is also known for corrosion tolerance properties, with great resistance to chemical changes. In addition, we can find them in food industry for its non toxic properties

Flow indicator

Optional Stainless steel turbulence tab welded to the body that helps to see the media movement.

PTFE gasket

PTFE gaskets offers optimal tightness and resistance to chemicals. It has excelent tolerance against oils and hydrocarbons, heat resistance up to 200ºC; good
electrical insulation properties; very low friction coefficient and non stick properties; and good resistance to UV rays, making it suitable for outdoor use.

DIN FLANGED DOUBLE SIGHTGLASS KTN 721

  • PTFE SEATS
  • API 594 DESIGN
  • TEMPERED CRYSTAL GLASS
  • CF8M STAINLESS STEEL BODY
  • Range: DN 15 / 100
  • PN: 16
  • Optional flow indicator

Description

TEMPERED GLASS SIGHT GLASS WITH DIN/ANSI FLANGES – KTN 721
The KTN 721 sight glass allows engineers and plant managers to look inside the piping system without interrupting the flow. Thanks to this feature they can observe critical changes in pressures or chemicals. Sight glasses have become very valuable in many industries, including steam, pipeline, chemical processing, pharmaceutical processing, and food processing.

With a simple but effective API594 design, KTN 721 can be installed on the pipeline vertically or horizontally. Through its tempered glass we can observe media up to 100ºC degrees. Upon special request, the sight glass can be made of borosilicate glass, quartz or aluminum glass. A flow indicator is available as an option to help view clear media.

The body and bonnets are made of high quality cast CF8M stainless steel. Our sight glass has two PTFE gaskets between the glass to achieve total tightness and increase corrosion resistance between the bonnet and the body.

Pressure range according to PN16. Range from DN15 to 100. See our KTN711 for threaded sight glass option.

Additional information

Materials

Stainless steel