The overflow and control valve type 618 from Götze is a compact valve made of gunmetal in angle or straight-through design with threaded connections. It protects pumps against overload and regulates the pressure in closed circuits. Suitable for neutral and non-neutral liquids, gases, technical vapors and – depending on the gasket – also for water vapor.
| Feature | Specification |
| Nominal size | DN 10 – DN 50 (3/8″ – 2″) |
| Nominal pressure | up to 20 bar |
| Materials | Body: Gunmetal CC499K; Internal parts: Brass/red brass; Spring: Stainless steel 1.4310 |
| Temperature range | depending on gasket: NBR -30 °C to +130 °C; FKM -20 °C to +200 °C; PTFE -60 °C to +225 °C |
| Connection type | Female thread BSP-P according to DIN EN ISO 228-1 |
| Gaskets | NBR, FKM, PTFE |
| Setting ranges | 0.2 – 0.8 bar 0.5 – 2.5 bar 2 – 12 bar 12 – 20 bar |
For liquids, gases, technical vapors and – depending on the gasket – also for water vapor.
Up to +225 °C with PTFE gasket.
0.2-0.8 / 0.5-2.5 / 2-12 / 12-20 bar.
Yes, e.g. oil and grease-free production, ATEX rating, galvanized nickel-plated.
CE, DNV, Lloyd’s Register, ABS, Bureau Veritas, RMRS, RINA.
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