DZ/EA-F

The lined PROTEGO® In-Line Valve DZ/EA-F is a state-of-the-art Pressure or Vacuum Relief Valve in a right angle design for higher set pressures. The lining makes this model a perfect solution for corrosive, polymerizing, or sticky substances. All inner parts are manufactured from PTFE or other highly corrosion resistant materials. Typically, the valve is installed in the in-breathing or out-breathing lines of tanks, vessels, and process equipment to protect against unallowable overpressure or underpressure. The valve prevents emission losses almost up to the set pressure and prevents unacceptable product entry. This springloaded model allows higher set pressures than the DZ/EA.

Due to our highly developed manufacturing technology, the tank pressure is maintained up to set pressure with a tightness that is far above the conventional standard. This feature is ensured by the use of Hastelloy valve seats and with individually lapped valve pallets (1). After the overpressure is released or the vacuum is balanced, the valve re-seats and provides a tight seal. The optimized fluid dynamic design of the valve body and valve pallet is a result of many years of research, resulting in stable operation of the valve pallet, optimized performance, and reduced product losses. The optimized fluid dynamic design of the valve body and valve pallet is a result of many years of research, resulting in stable operation of the valve pallet, optimized performance, and reduced product losses.