Flow indicator for steam/condensate with borosilicate glass and optional heating jacket.
The GESTRA Vaposkop® type VK sight glasses are used to visually check the flow processes in pipelines, especially upstream of steam traps. It enables the detection of steam losses or condensate build-up and thus contributes to operational safety and energy efficiency. The devices are robust, maintenance-free and suitable for use in potentially explosive atmospheres.
| Feature | VK14 | VK16 |
| Nominal pressure | PN16 | PN40 / ASME CL150 / CL300 |
| Nominal size | DN 15 – DN 50 | DN 15 – DN 50 |
| Temperature range | -10°C to +280°C (optional 300°C) | -10°C to +300°C |
| Body | Cast iron / cast steel | Cast steel / stainless steel |
| Glass | Borosilicate glass DIN 7080 | Borosilicate glass DIN 7080 |
| Installation position | Drip tip, optional mica disks | For higher pressures and pH values |
Sight glasses are indispensable components for process monitoring in modular SKID systems. They enable the direct visual inspection of flow, fill level and media quality in pipes and containers – a decisive factor for operational safety and quality assurance.
Steam and condensate, media of fluid group 2.
Yes, with mica disks up to 300°C.
EN 1092, ASME B16.5, Pressure Equipment Directive 2014/68/EU.
Yes, according to ATEX directive (no ignition source).
Yes, horizontal or vertical (note direction of flow).
Our insulations are more than just accessories – they perfectly complement fittings and systems and increase efficiency, safety and adaptability.
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