Figure 1:
PT&P Hydraulic Snubber

Fig. 1 shows PT&P's hydraulic snubber. Some of its features include:

1. External pressurized hydraulic reservoir for positioning flexibility in any spatial orientation.

2. Allows free thermal movement of piping under normal operations.

3. Restrains shock loading both in tension and compression.

4. System's movement is controlled by a flow control device.

5.  Spherical bearing allows for angular rotation of ± 6° to accommodate misalignment.

Application:

For use on piping systems or equipment when unrestrained thermal movement must be allowed, but which must be restrained during impulsive or cyclic disturbance. The unit is not effective against low amplitude, high frequency movement. Preferred usage, with standard settings, to prevent destructive results due to earthquakes, flow transients, or wind load. Special settings are available to absorb the continuous thrust resulting from safety valve blow-off or pipe rupture. For the most effective operation of the unit, please specify the mounting position, vertical or horizontal.

Size Range:

PT&P 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 110,000 lbs. All are made to include reservoirs in 6, 10, 15, or 20 inch strokes, except the 1 1/2 inch size. The 1 1/2 inch size is offered only in 6 & 10 inch strokes only. Snubbers, as they are sometime referred to, are available with remote reservoirs.

Ordering:

Please specify figure no., cylinder size, stroke, load, cold and hot piston settings, and piston end option. If clamp is required, please specify nominal pipe size, or special O.D. and clamp material. Specification or description of any additional optional features or special settings are required.