Pressure Reducing Valves

Pressure Reducing Valves

Pressure reducing valves has two types, direct operated type and pilot operated type.

Models DR are pilot operated reducing valves. They reduce pressure in a branch circuit lower than that of the main circuit. The valve design is capable of maintaining a precise pressure setting even at high flow.

Models 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.

ZDR Features:

l Sizes 6 and 10

l 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

l Pressure reduction in channel A, B or P

l Four pressure ratings:
– 25 bar (360 PSI), 75 bar (1100 PSI), 150 bar (2175 PSI), and 210 bar (3050 PSI)

l Adjustment type:
– Rotary knob

DR Features:

l Size 10, 20

l Nominal pressure 100, 200 Bar

l Mounts on ISO 5781-06, 08, or 10

l 4 adjustment types for pressure adjustment, optionally:
– Rotary knob
– Hex screw with protective cap
– Lockable rotary knob with scale
– Rotary knob with scale