Pressure relief valve DV 1, for pressure storage units

• This allows pressure storage units without a return line (type 180 and 240), also in conjunction with safety tanks, to be operated, where a non-return valve is installed in the suction line.
• Installation only possible in conjunction with the LS 1 leak detection system.

According to TRwS 791, oil pumping units that are installed in the oil line must be equipped with a leak detection system!