Images are examples, some edited with AI. The technical data are authoritative. AI notice
Safety relief valve G 1", factory set and sealed, DN 20, 4 bar, brass
Keeps receivers, compressors and pipelines safe against pressure above 4 bar. At nominal size DN 20 with the G 1" connection the discharge capacity is 889 m³/h. The body material is brass.
- Specialist dealer since 2009
- Invoice payment for regular customers
- Worldwide shipping
- Technical questions clarified with the manufacturer
Description
Protects compressors, receivers and downstream fittings against inadmissible pressure above 4 bar. When it responds, a flow of 889 m³/h is discharged freely. Built in brass with the G 1" thread and nominal size DN 20.
Advantages
- Connection thread G 1" with 41 mm across flats, mounted with a standard open end wrench.
- Seal in FKM, matched to the set pressure of 4 bar.
- Set pressure fixed at 4 bar and lead sealed, so no adjustment is possible during operation.
- Type tested and permanently marked with TÜV-SV...-2055.20.D/G.0,77 CE0036 4 bar.
- All metal design in brass, vibration resistant and suitable for continuous use from -20 to +200 °C.
Applications
- Compressed air receivers and compressor stations with a permissible working pressure up to 4 bar
- Pipelines and manifolds for non toxic, non flammable gases with a G 1" connection
- Test benches and machines where a discharge capacity of 889 m³/h has to be protected
- Workshop networks and plant installations that call for a brass valve body
Standards and conformity
The valve is type tested and carries the component marking TÜV-SV...-2055.20.D/G.0,77 CE0036 4 bar together with the CE identification number 0036. It is supplied exclusively with a fixed setting and lead seal. A certification to the ASME Boiler and Pressure Vessel Code, Section VIII Div. 1 and a setting certificate to 3.1 are available on request.
Technical data
| Property | Value |
|---|---|
| Body material | brass |
| DN [mm] | 20 |
| Thread | G 1" |
| Set pressure [bar] | 4 |
| Discharge capacity [m³/h] | 889 |
| Temperature range [°C] | -20 to +200 |
| Seal material | FKM |
| Media | compressed air and other non toxic, non flammable gases, free discharge |
| h [mm] | 14 |
| H [mm] | 111 |
| SW across flats [mm] | 41 |
| Component marking | TÜV-SV...-2055.20.D/G.0,77 CE0036 4 bar |
| Weight | 0.600000 |
| Manufacturer | Fluidics equipment |
| Hersteller-Nr | HSV 10-4 |
| EAN | 4050571365660 |
| Zolltarifnummer | 84814090 |
| GPSR Herstellerdaten | A1-ESD equipment GmbH. Keldersstr. 15, DE-42697 Solingen, www.esd.equipment |
| Artikelzustand | New |
| Artikel-Authentizität | Original product |
| Ausführung | Messing |
| Thread | G 1 |
| Set pressure [bar] | 4,00 |
| Abblasleistung [m³/h] | 889 |
| Temperaturbereich | -20-200 °C |
Downloads
Questions about this item
Any other question?
Send us the item number and your question. We clarify technical details directly with the manufacturer and usually reply on the next working day. Ask a question

