Hydraulic Dampers

HYDAC Pulsation Dampers SB 

• V = 1 ... 32 l
• p = 330 ... 1,000 bar
• High-Flow-Version: Qmax = 30 l/s

The HYDAC SB Pulsation Damper (1–32 L, 330–1,000 bar) effectively reduces pressure fluctuations and flow irregularities in high-pressure hydraulic systems, with a High-Flow version supporting up to 30 L/s. Designed to prevent pipe fatigue, protect sensitive components, and lower noise levels, it enhances system reliability and extends service life. Ideal for displacement pumps, control instruments, and chemical process circuits, it also supports reduced maintenance costs and improved machine performance.

Pulsation dampers welded SBO

• V = 0.075 ... 4 l
• p = 50 ... 330 bar

The HYDAC SBO Welded Pulsation Damper (0.075–4 L, 50–330 bar) is designed to minimize pressure pulsations, reduce noise, and prevent pipe fatigue in hydraulic systems. Ideal for displacement pumps and sensitive instrumentation, it enhances measurement accuracy, supports pump interconnection, and extends overall system life. Its compact, welded design also contributes to lower maintenance costs and improved machine performance.

Pulsation dampers threaded types SBO

• V = 0.2 ... 4 l
• p =10 ... 500 bar

The HYDAC SBO Threaded Pulsation Damper (0.2–4 L, 10–500 bar) effectively reduces pipe vibrations, pressure spikes, and flow irregularities in hydraulic systems. Designed for use with displacement pumps and sensitive instrumentation, it helps prevent damage, lowers noise levels, and improves the performance of valves, machine tools, and measuring devices. Its threaded connection allows easy installation, extending system life while reducing maintenance and servicing costs.

Suction flow stabilisers SB...S

• V = 12 ... 400 l
• pmax = 40 bar

The HYDAC Suction Flow Stabiliser ensures smooth pump operation by improving NPSH, preventing cavitation, and reducing pipe oscillations. Designed for piston and diaphragm pumps in utilities, chemical processing, and reactor systems, it uses a baffled, welded steel or stainless-steel vessel with an internal bladder to dampen pulsations and separate air. Installed vertically near the pump inlet, it enhances reliability and protects against costly system damage.

Silencers SD...

• V = 0.5 ...5.5 l
• pmax = 330 bar
• Silencer for fluid noise damping

The HYDAC SD Silencer (0.5–5.5 L, up to 330 bar) effectively reduces fluid-borne noise in hydraulic systems using an expansion chamber with interference lines to dampen oscillations across a wide frequency range. Maintenance-free and compatible with various fluids, it’s ideal for use in vehicles, machine tools, ships, aircraft, and industrial systems. With a durable, welded or forged housing and no moving parts, it offers long-lasting noise reduction in even the most demanding environments.