New design of safety ball check valve for Jerguson sight glasses for level measurement – now introduced in Norway by Håland Instrumentering

It’s not often that there’s news in the field of “level glass” design, or see-glass as we also call it.
Jerguson, one of the world’s largest suppliers of sight glasses, introduces a new type of valve design that is integrated into the sight glasses. In collaboration with Håland Instrumentering AS for the Norwegian market.

In their own specifications, all oil companies require automatic closure of the valve in the event of a leak through the sight glass. This type of valve is often described as a “safety ball check valve” and will automatically prevent and reduce a potential leak to a minimum. As an example, we can refer to Statoil TR3032, but also NORSOK I-001 where this requirement is specifically described.

The innovation presented is a much easier valve to operate. Operators can also visually see whether the valve is open, closed or in by-pass position. The position of the valve is not possible to see with today’s traditional “safety ball check valve” design. This is clearly a major improvement and will increase safety in such applications. In addition, the valve position can be locked so that unauthorized persons cannot change it.

Watch a video with audio showing how this new design (version without indicator ring in color) works and increases safety (click on image to see video):

(Evt. direct link to video with sound: https://vimeo.com/215646244 )

Color codes on the easily visible indicator ring:
Green = normal operation. Yellow = bypass. Red = closed.

For more information contact: tel 51 71 97 00 or post@hi-as.no

For English:
Please see the video with sound, and feel free to contact us.