The Pipe Support Blog

Follow these 7 steps below to maintain and extend the life span of your hydraulic snubber.

1. Observe the fluid level to make sure there is sufficient fluid for the snubber to operate

2. Check for leaks - If the fluid level is decreasing, determine the cause and effect remedial action.

3. Check the condition of the load pins and spherical ball bushings. Apply a high pressure grease for long-term benefits.

4. Check the condition of the exposed portion of the piston rod. Check for scoring, paint or other physical damage.

5. Check the condition of the piston rod wiper. Verify that it's in position and working effectively.

6. Check for evidence of abuse like welding arc strikes, bent or dented parts, scratched paint, etc.

7. Finally, check the overall physical appearance. This encompasses all of the above.

Do you have a hydraulic snubber would you like inspect, but don't know where to begin? Visit our visual media section and learn How To Inspect a Hydraulic Snubber. This video will go over the four main steps when inspecting a hydraulic snubber. If you have any questions, feel free to call us at 713-731-0030 or email us at info@pipingtech.com.

Hydraulic Snubber Assemblies for a LNG Processing Facility in Peru

Fronek Anchor/Darling, a division of PT&P, designed and manufactured hydraulic snubbers with protective boots for a hydro-sulfuric acid environment in a geothermal power plant. They measure 53-5/8" pin-to-pin with a 3-1/4" cylinder bore size and 6" stroke.

The snubbers are designed for an actual load of 15,400 lb., but have a rated load capacity of 20,000 lb. They are fabricated from carbon and alloy steel, and include two coats of epoxy-based paint. An activation velocity test was performed, along with a release rate and drag characteristics test.

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These hydraulic snubber assemblies were designed with maximum load capacities ranging from 1700 lb. to 59,400 lb. All of the snubbers were provided with an overall stroke of 6” and were preset to the midpoint of the total stroke, meaning that during operation, these snubbers could accommodate piping deflections of  +/- 3” from the installed position.

The piston diameters range from 1-1/2" to 6" and the total assembly length ranges from 31-1/2" to 220". The largest assembly required a custom extension section to eliminate the risk of buckling under compression loads. Two-thirds of the assemblies included dual end brackets and the remaining assemblies included an end bracket/clamp combination. The housing, extension piece and end brackets are fabricated from carbon steel, while the cylinders, pins and two of the end brackets are fabricated from polished stainless steel. Standard "lock and bleed-down" tests were performed prior to shipping to a LNG processing facility in Peru.

Do you require a shock control device in your piping system? Price a snubber today!

Snubbers with Yoke Clamps for a LNG Plant

Snubbers are restraining devices. They allow free thermal movement during normal operations but restrain in abnormal circumstances such as with an earthquake. These snubbers were fabricated from carbon steel. They measure 2 1/2” x 24” and the yoke clamps have pipe sizes of 23” and 25”. Each snubber weighs 890 lb. and has a travel capacity of 24”. Designed for the support of a cryogenic line, these snubbers can handle loads of up to 2,900 lb.

Want to learn more about snubbers? Instantly view a past snubbers webinar today!

Hydraulic Snubber Extension Rod Ends

The hydraulic snubber extension rod ends(seen above) were manufactured from carbon steel. Ranging in sizes 1 , 4, 5, and 6, the weight of each increase with size, therefore; the weight of each unit varies. Extension rod ends are used in conjunction with hydraulic snubbers to extend the overall length of an existing snubber. They are applied to piping systems when unrestrained thermal movement must be allowed but must also be restrained during impulsive or cyclic disturbance. The turn around time for these units was 3 weeks.

Want to learn more about snubbers? View one of our past snubber webinars today!

25,000 lb. Load Hydraulic Shock Suppressor and Clamp Assemblies

Piping Technology & Products, Inc., recently designed and manufactured fourteen PTP Fig. 2100 Hydraulic Shock Suppressor and pipe hanger assemblies for a Steel Company in North Dakota. The assembly consists of a 12 diameter alloy clamp and a PTP Fig. 2100 Hydraulic Snubber with cylinder size of 3 1/4 diameter and 5 stroke load. They are designed to accommodate loads of 25,000 lb. and high temperatures up to 1,100 F. To ensure the products quality, dimension and movement tests were conducted prior to shipment.

PT&P also designed and manufactured Variables Spring Hangers and various Pipe Supports Assembly Components in a range of different specifications and materials for this project.

Do you see a need for hydraulic snubbers in your piping system? Get pricing now!

14 1/2" diameter 225,000 lb. load Hydraulic Snubber

Piping Technology & Products, Inc. recently designed and manufactured a hydraulic snubber weighing 4000 pounds for an oil refinery in Mexico.  The snubber is fabricated from carbon steel with dimensions of 17 x 101. It supports a maximum load of 225,000 lbs. The purpose of the hydraulic snubber is to reduce shock loading created by events such as water hammer or an earthquake. To meet customer specifications, the hydraulic snubber was coated with a three-coat paint system.

Do you see a need for hydraulic snubbers in your piping system? Get a quote today!

12,500 lb. Load Hydraulic Snubber and 24 Alloy Clamp Assembly

Piping Technology and Products, Inc. recently designed and manufactured a PTP Fig. 2100 Hydraulic Snubber and a Clamp Assembly for a power plant in California. The Hydraulic Snubber with a cylinder size of 2 1/2 dia. and a stroke of 5 is designed to support an operating load of 12,500 lbs. The 24 alloy clamp is designed to accommodate a temperature of 1078°F. The entire pipe hanger assembly was hydraulic tested prior to shipping.

Do you have a need for hydraulic snubbers? Let us price them for you today!