
Honeywell Pressure Reducing Valve
D115S Series
A pilot-operated pressure reducing valve designed to maintain a constant downstream pressure regardless of supply fluctuations. It protects industrial water installations from damage caused by high-pressure surges from the main line. The valve features a high-capacity design with a diaphragm-operated pilot for extreme accuracy. It is essential for protecting downstream boilers, heaters, and commercial processing equipment.
Feature | Specification |
Media | Raw water, clean water |
Connection Sizes | 2" to 12" |
Nominal Sizes | DN50 to DN300 |
Max. Inlet Pressure | 20 Bar |
Nominal Pressure | PN16 / PN20 |
Outlet Pressure Ranges | Low: 1–4 Bar (15–60 PSI) Med: 2.4–6 Bar (35–85 PSI) High: 4.5–11.4 Bar (65–165 PSI) |
Min. Pressure Drop | 1 Bar |
Instrumentation | Reserved pressure test port (gauges not included by default) |
Operating Temperature | 0-82 C |


