The DH/D2778 is a panel mounting Outward Relief Valve which is used to protect equipment from vacuum damage.

This valve is supplied with a back nut and has a Alochrome thread for R.F Screening Continuity.
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Item #

Opening Pressure

DH/D2778/01 N/A 1.25-1.75 psi
DH/D2778/02 N/A 1.0-1.5 psi
DH/D2778/03 N/A 2.5-3.0 psi
DH/D2778/04 N/A .25 psi
DH/D2778/05 N/A .5-.75 psi
DH/D2778/06 N/A 4.0-5.0 psi
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