This manual introduces the technical features, installation, maintenance and use instructions of RK 86A series stainless steel ball valves.
This document provides technical data for the GESTRA RK 86 and RK 86A wafer-type non-return valves. These valves are designed for sandwiching between flanges and feature a self-centering body suitable for liquids, gases, and vapors. The RK 86A model includes a spring for installation in any position, whereas the standard RK 86 is for vertical lines with upward flow only.
| Valve Type | Wafer-type non-return (check) valve |
|---|---|
| Flange Standards | DIN, BS, ASME, JIS |
| Pressure Ratings | PN 10/16/25/40, ASME Class 125/150/300 |
| Temperature Range (Metal-to-metal seat) | -10°C to 550°C |
| Weight (DN 15) | 0.27 kg |
No, the RK 86 is only for vertical lines with upward flow, while the RK 86A has a spring for any position.
Yes, they can be used in potentially explosive zones 0, 1, 2, 20, 21 and 22.