|Vacuum ||Spring-loaded +61 mbar and +1000 mbar (+24 inch W.C. and 400 inch W.C.) |
|Ambient temp ||-20°C to +60°C |
|Standard sizes ||2” to 12” 50 to 300mm |
|Flanges ||API Class 150 RF, DIN PN16 |
|Body ||Carbon steel, stainless steel, or aluminium |
|Seals ||Nitrile, Teflon, and Klingrit |
|Pallet ||Stainless steel AISI 304 |
|Springs ||Stainless steel |
|Paint finish ||1-) Powder Coating, Colour RAL 9006 |
2-) Epoxy Paint, Colour RAL 9006
3-) Customer Specification
|ATEX cert ||Ex II 1/2 G c IIB |
The integrity of the seal is tested for leakage in accordance with API Standard 2521 – Use of Pressure-Vacuum Vent Valves for Atmospheric Loss.
The size of the vent should be calculated in accordance with API Standard 2000 (ISO 28300) – Venting Atmospheric and Low-Pressure Storage Tanks or other international standards.
Data sheet, Pressure Relief, Vacuum Relief, and Pressure-Vacuum Relief Valves