Vac-Gard / Posi-Gard (VG/PG) - ELFAB - #1

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Products > Reverse > Vac-Gard / Posi-Gard (VG/PG) (Patented) This range of composite (compression loaded) reverse discs are ideal for the relief of vacuum and over-pressure situations. The patented design overcomes the requirement for a holder complete with blade for opening and allows for instantaneous system relief at ultra low pressures. The Posi-Gard and Vac-Gard will attain full relief within 1 second from the start of reverse. Both products offer non-fragmenting opening and, as a result of their modular content, can be offered to meet a broad range of non standard specifications / applications. The Posi-Gard and Vac-Gard can be provided with an ATEX approved burst detection device. Blade-less holder installation – instantaneous relief through single-stage opening Ultra-low pressure instantaneous relief – ideal for protection of API designed atmospheric vessels (vacuum and over-pressure) Standard integral detection device – immediate indication of over/ under pressure occurrence Non-fragmenting design – eliminates product contamination No moving components – not prone to mechanical failure