ZDR are 3-way direct operated pressure reducing -relieving valves. They maintain a "reduced" pressure in a branch circuit and permit "relieving" pressure spike occurrences in the reduced branch circuit. Options for pressure ranges and operator adjustment options are within the scope of the modular reducing valve portfolio. FEATURES: Sizes 6 and 10. For mounting: - Size 6: Porting pattern according to ISO 4401-3, NFPA T3.5.1M Ra, and ANSI B93.7 D 03 - Size 10: Porting pattern according to ISO 4401-05, NFPA T3.5.1M R1, and ANSI B93.7 D 05. Pressure reduction in channel A, B or P. Four pressure ratings: - 25 bar (360 PSI), 75 bar (1100 PSI), 150 bar (2175 PSI), and 210 bar (3050 PSI). Adjustment type: - Rotary knob. Check valve, optional. SPECIFICATIONS: Sandwich Plate. Pressure Reducing Valve. Size: 6. Direct Operated. Pressure Reduction in Channel P. Adjustment Type: Bushing With Hexagon and Protective Cap. Component Series: 42. Secondary Pressure Up to 150 Bar. Pilot Oil Supply Internal, Pilot Oil Return External. Without Check Valve. Seal Material: NBR Seals. Without Locating Hole. Model Suffix: 12.
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