881 Series are a range of industrial double window sight glasses with either BSP or NPT female threads in sizes from ½” up to 2”. Available in Cast Iron, Carbon Steel or Stainless Steel and a choice of soda lime or Borosilicate glass there are options to suit most process industry needs. They come with a choice of a plain drip tube which is ideal when you need to inspect for bubbles, colour or quality of the media, if rudimentary indication of flow is required a flap or spinner can be provided. Primarily designed for low viscosity liquids or gases (drip tube and flap only, not spinner type), they can be mounted horizontally or vertically.
- Pipe Sizes: ½” to 2”
- Connections Styles: BSPP or NPT
- Body Materials: Cast Iron, Carbon Steel or 316 Stainless Steel
- Glass Material: Soda Lime or Annealed Borosilicate Glass
- Seal Material: Klingersil or PTFE
- Rotor Material: Acteal or PTFE
- Flap Material: Stainless Steel
- Pressure: up to 40 Bar depending on version
- Temperature: up to 250°C
