Technical data sheet for the GSR Type 26 2/2‑way pressure operated valve, covering specifications, dimensions, materials and ordering details.
The GSR Type 26 is a 2/2‑way pressure‑operated valve available in normally closed (NC) as standard, with optional normally open (NO) or double‑acting (DW) configurations. It features a pilot‑operated piston design that requires no differential pressure for operation and can be installed upright with an actuator.
The sheet provides pressure ranges up to 40 bar, temperature limits from –40 °C to +200 °C (medium) and –10 °C to +60 °C (ambient), connection sizes DN15‑DN300, and a selection of body materials such as spheroidal cast EN‑GJS‑400‑18‑LT, cast iron EN‑GJL‑250, and stainless steel 1.4581. Ordering information, pilot pressure requirements (4‑10 bar), and material selection guidance are also included.
| Pressure range | 0 – 40 bar |
|---|---|
| Medium temperature range | -40 °C to +200 °C |
| Ambient temperature range | -10 °C to +60 °C |
| Connection sizes | DN15 – DN300 |
| Body material (standard) | Spheroidal cast EN‑GJS‑400‑18‑LT |
| Pilot pressure | 4 – 10 bar (minimum 6 bar for max pressure) |
| Valve function (standard) | Normally closed (NC) |
The standard function is normally closed (NC); optional functions are normally open (NO) and double‑acting actuator (DW).
It is suitable for clean, neutral, gaseous and liquid media.
Pilot pressure must be between 4 and 10 bar, with at least 6 bar for maximum pressure.
Medium temperature range is –40 °C to +200 °C; ambient temperature range is –10 °C to +60 °C.