High EfficiencyType 821
The pilot-operated pressure relief valve Type 821 Modulate Action opens modulating. Technical data
- Pilot-operated pressure relief valve according to API 526 - Modular Action.
The pilot-operated pressure relief valve Type 821 Modulate Action opens modulating. Technical data
| Pressure setting(according to the EC) | 2.5 - 426 bar | 36 - 6,179 psig |
| Pressure setting (according to ASME) | 2.5 - 689 bar | 36 - 10,000 psig |
| Temperature(according to the EC) | -45 to 200 °C (individual case: -162 to 300 °C) |
| Temperature(according to ASME) | -49 to 392 °F (individual case: -259.6 to 572 °F) |
| Capability | orifice D - T+ |
| DIN EN 1092 connections | DN 25 - DN 200 |
| ASME B16.5 connections | NPS 1 to NPS 8 |
| Inlet Flange Class DIN EN 1092 | PN 10 - PN 400 |
| Inlet Flange Class ASME B16.5 | Class 150 - Class 2500 |
| Material body | 1.0619, 1.4408, 1.7357 | SA 216 WCB, SA 351 CF8M, SA 217 WC6, SA 352 LCB, SA 351 CF3M, SA 995 Gr 4A CD3MN (Duplex), SA 494 M35-1 (Monel), SA 494 CX2MW (Hastelloy) |
| Narrowest passage diameter d₀ | 11 - 180 mm | 0.433 - 7.087 in. |
| Narrowest Passage Area A₀ | 95 - 25,446.9 mm² | 0.147 - 39.443 in² |
| Gasket seat | Soft lacquer, Metallic, Lacquer plate |
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