Gestra RK86A – Fully 316 Austenitic Stainless Steel Valve To Suit BS10, BS4504 & ANSI Flanges
Gestra
Gestra has been at the forefront of steam and process control technology for well over a century, earning a worldwide reputation for engineering quality, reliability and innovation. As part of the Spirax Group, Gestra products are trusted across industrial, commercial and energy sectors, offering dependable solutions for steam, condensate and fluid control applications. Designed to exacting standards and manufactured for long service life, Gestra valves are recognised for their robust construction, precision performance and proven reliability in demanding operating environments.
Key Information
The Gestra RK86A Wafer Design Non-Return Valve is a robust, spring-loaded check valve designed to prevent reverse flow in demanding industrial liquid, gas and vapour applications. Manufactured entirely from 316 austenitic stainless steel, the valve features a durable metal-to-metal seat and a compact wafer design for installation between compatible flanges. Particularly suited to aggressive media, low-temperature services, boiler feedwater systems and general industrial processes, the RK86A combines excellent corrosion resistance with dependable long-term performance.
Features
- 316 Austenitic Stainless Steel Construction – Body, disc and spring manufactured from high-grade stainless steel for exceptional corrosion resistance and durability.
- Wafer Pattern Design – Compact construction for straightforward installation between BS10, BS4504 and ANSI Class 300 compatible flanges.
- 700 mBar Spring-Loaded Design – Provides rapid, positive closure to prevent reverse flow in liquid, gas and vapour systems.
- Metal-to-Metal Seat – Robust sealing design for demanding industrial and high-temperature applications.
- Industrial Process Applications – Ideal for aggressive fluids, low-temperature duties, boiler feedwater systems and general industrial service.
- PN40 / Class 300 Rated – Suitable for operating pressures up to 49.6 bar, with an operating temperature range from -200°C to 550°C (pressure dependent).
| VIP Code | Gestra Code | Size |
|---|---|---|
| 15/0179/015 | GES21656 | 1/2″ |
| 15/0179/020 | GES21657 | 3/4″ |
| 15/0179/025 | GES21658 | 1″ |
| 15/0179/032 | GES21664 | 1 1/4″ |
| 15/0179/040 | GES21659 | 1 1/2″ |
| 15/0179/050 | GES21660 | 2″ |
| 15/0179/065 | GES21661 | 2 1/2″ |
| 15/0179/080 | GES21662 | 3″ |
| 15/0179/100 | GES21663 | 4″ |
