Safety Block Calculator

Calculate dump valve and pressure gauge sizing for accumulator safety blocks per NFPA

Input Parameters

Results

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Required Dump Flow
GPM
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Dump Valve Cv
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Energy to Discharge
ft-lb
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Gauge Range
psi
Note: Safety blocks must include: manual dump valve, pressure gauge, and isolation valve. Required by OSHA 1910.217 for press applications.

Reference

Q_dump = V / t | Cv = Q / √(ΔP/SG) | Gauge Range = 1.5 × P_max | Per NFPA T2.6.1