PVCDS / PVCDR
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Specification
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STANDARDS
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NFPA 68, KOSHA Code
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SIZE
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12"x12"~48"x69"(1200mmx1750mm), Ask POPDISC about another size.
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SETTING PRESS.
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0.07 ~ 1.5bar
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MAX. TEMP.
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FEP plastic seal 204℃(400℉), PFA plastic seal 260℃(500℉), metal seal 538℃(1000℉) As it is diffi cult to apply the metal seal to the 34” or greater one,
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MATERIAL
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3316SST, Nickel200, Monel400, Inconel600, Hastelloy C276, etc
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OPERATING RATIO
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80% of the tagged burst pressure
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NON-FRAGMENTING
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YES
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VACUUM RESISTANT
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Withstands full vacuum without the aid of vacuum suport
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BURST TOLERANCE
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±15mbar~±150mbar (Adjustable at customer’s request)
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MFG. RANGE
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0%
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Explanation
- The PVCDS (Composite Dome Square) / PVCDR (Composite Dome
Rectangular) explosion vent panel consists of the three components such
as the top panel, the sealing sheet, and the support panel.
- The top panel adjusts the burst pressure of the panel. The sealing sheet
in the middle prevents the leakage from the fluid in the process. The
support panel supports the whole panel.
- It is the type broken by the internal pressure of fl uid with the burst part
intentionally processed by the burst design value.
- It is installed with the gasket between the standard or non-standard
companion fl anges or frames.
Properties
- It is the type suitable to the application of low pressure.
- Tefl on (PFA) is mainly used for the sealing sheet. However, various material
qualities can be applied depending on the process conditions. .(PFA, PTFE,
FEP, SUS316L, Monel400, Inconel600, etc.)
- The various material qualities such as non-asbestos, Tefl on, silicon, rubber,
etc. are used for the gasket.
- It can endure vacuum by applying the vacuum support if needed.
- The panel rupture can be monitored in the control room by applying the
alarm sensor system. (Optional)
- The fatigue degree of the metal or the circular durable period is improved
more in comparison with the fl at type.
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