Relief Vent & Flame Arrestor 6K00 CASHCO
A pressure/vacuum conservation vent, often referred to as a breather valve or pressure vacuum relief valve, is a safety device used in industrial equipment, tanks, pipelines, or storage vessels to regulate pressure variations within the system.
The Model 6K00 provides three primary functions:
Pressure Relief
When there is a buildup of excessive pressure within a closed system due to factors such as thermal expansion of liquids, chemical reactions, or external heat sources, the pressure relief valve opens to release the excess pressure, preventing potential damage to the equipment or structure.
Vacuum Relief
When there is a vacuum or negative pressure condition in the system, often caused by changes in ambient temperature or fluid withdrawal, the vacuum relief valve opens to allow air into the system, preventing the vessel from collapsing or being damaged due to the vacuum.
Flame Protection:
This component helps to mitigate the risk of fire or explosions by disrupting the propagation of flames, sparks, or flammable gases from reaching the potentially volatile contents inside the protected container. The flame arrestor functions by quenching and cooling any flames or hot gases passing through it, thereby reducing the risk of ignition within the system.
Relief Vent & Flame Arrestor MODEL 6K00
| Housing Material | Available in carbon steel, stainless steel, in sizes DN50 (2”) through DN300 (12”). |
| Seat Rings | Press-fi tted metal seat rings in stainless steel 1.4581. |
| Pallets Assemblies | Replaceable stainless steel pallet assemblies are standard for all vents. |
| Pallet Diaphragms | Standard diaphragm material is FEP film. |
| Settings for pressure | +5 mbar to +50 mbar |
| Settings for vacuum | -2,5 to -50 mbar |
| Sizes | DN50 (2”), DN80 (3”), DN100 (4”), DN150 (6”), DN200 (8”), DN250 (10”) and DN300 (12”) |
OBJECTIVE
The Model 6K00 Pressure / Vacuum Vent with Flame Arrestor is designed for use on atmospheric and low-pressure storage tanks where pressure and vacuum relief is required. The design include a deflagration flame arrestor consisting of a crimped SST metal element which allows the flow of gases or vapor of flammable liquids but prevent the flame-transmission from the outside. It provides an extinguishing barrier to the ignited vapor mixture by absorbing heat from the flame. The model 6K00 is used as an independent safety system to ensure explosion protection.
TECHNIQUE
Weight loaded pallets in the vent housing allow the intake of air and the escape of vapors as the tank breathes due to thermal changes and product movement in and out of the tank. The pallets open and close to permit in breathing and out breathing necessary to maintain the tank pressure within permissible limits to avoid damage to the tank.
CONSTRUCTION
Housing Material: Available in carbon steel, stainless steel, in sizes DN50 (2”) through DN300 (12”).
Seat Rings: Press-fi tted metal seat rings in stainless steel 1.4581.
Pallets Assemblies: Replaceable stainless steel pallet assemblies are standard for all vents.
Pallet Diaphragms: Standard diaphragm material is FEP fi lm.
SPECIAL FEATURES
The Model 6K00 is designed, manufactured and tested according to Directive 2014/34/EU (ATEX114) and ISO 16852.
Maintains Accurate Settings: Standard settings for pressure are +5 mbar to +50 mbar and for vacuum -2,5 to -50 mbar. Other settings are available upon request. All vents are tested to Cashco high standards for both leakage and set point prior to shipment. A certified test certificate is included with each vent verifying the accuracy of both the pressure and vacuum setting and leakage. Seat leakage meets or exceeds international standards (ISO 28300, API 2000).
Condensate Drainage: Self-draining body and specially designed seat ring keeps condensate away from seating surfaces, preventing freezing, binding, and clogging.
Air-Cushioned Seating: Air-cushion seating provides tight sealing to reduce evaporation losses and the release of toxic vapors. The pallets have center guiding stem to provide self alignment and tight seating.
Sizes: Available in sizes DN50 (2”), DN80 (3”), DN100 (4”), DN150 (6”), DN200 (8”), DN250 (10”) and DN300 (12”). All vents have a raised face connection flange. Standard flanged bolt patterns are available to mate with DIN PN10 or ASME Class 150 flanged connections.
