Hydraulic Snubbers

Hydraulic Snubbers are used for the control and protection of piping and equipment subject to shock (impulse) loading and seismic (cyclic) conditions. Its use transfers any imposed forces on the piping equipment directly to the building structure at the instant of shock occurrence. While at all other times allowing free unrestricted movement through its normal operating range.

The Fronek A/DE Hydraulic Snubber is a manifold design hydraulic component consisting of a high pressure main cylinder, a flow control section with dual stage velocity sensitive poppet Valves, and a spring energized reservoir. Under normal operating conditions, the valves remain open and the piston is allowed to move freely. On rapid piston movement above a velocity limit, the poppet valve closes. The hydraulic flow is interrupted and the movement is blocked.

• Piping and/or equipment movement is controlled by tamperproof dual stage flow control poppets designed with self-cleaning orifices.
• Spherical, self-aligning ball bushings allow for ±5° of angular motion or misalignment.
• Stable premium grade, anti-wear hydraulic fluid.
• Pressurized hydraulic reservoir allows mounting in any spatial orientation.
• Virtually no resistance to normal thermal movements of piping.
• Industry leading performance

Fronek A/DE offers seven sizes with cylinder bores of 1 1/2 to 8 inches. These units have a normal load range of 3,000 lbs. to 130,000 lbs., and are available in 6, 12, and 18” strokes. Standard configuration includes an integral, spring energized reservoir and is also available with a remote reservoir.