How does the snubber lock immediately during a transient load?

Can a hydraulic snubber handle more load than a mechanical snubber?

June 6, 2012

Hydraulic snubbers and mechanical snubbers can take the same loads if they are the same size snubber. It depends upon the load that each type of snubber is designed for.

Hydraulic Snubbers Designed for a Geothermal Facility
Hydraulic Snubbers Designed for a Geothermal Facility

Is there a difference for drag force for hydraulic and mechanical snubber?

November 10, 2011

There is little difference in the initial dragforce associated with mechanical and hydraulic snubbers. Basically, both styles are designed to impart a maximum of 2% of their design restraint load during normal pipe deflection.

Hydraulic Snubber
Hydraulic Snubber
 

Mechanical Snubber
Mechanical Snubber

 

What is the criteria required to order a mechanical or hydraulic snubber?

October 27, 2011

Please specify figure number,cylinder size, stroke, load, cold and hot piston settings, and piston endoption when ordering a mechanical or hydraulic snubber. If clamp is required, please specify nominal pipe size, or special O.D.and clamp material. Please specify or describe any additional optional featuresor special settings required.

Mechanical Snubbers
Mechanical Snubber
Hydraulic Snubber

 

Hydraulic Snubber

 

What is the criteria to choose a mechanical or a hydraulic snubber?

September 27, 2011

Both snubbers function similarly. One thing to consider would be the environment. If the environment is real dirty, the mechanical snubbers may get gritty and not function properly. Likewise, if the environment is extremely cold, the fluid ina hydraulic snubber may not function properly. Additionally hydraulic snubbers have a larger available displacement, but basically the mechanical and hydraulic snubbers function similarly.

Mechanical Snubbers for a Refinery
Mechanical Snubber

Hydraulic Snubbers (Fig. 511 AD) with Protective Boots Designed for a Hydro-sulfuric Acid Environment in a Geothermal Power Plant
Hydraulic Snubber

How do you adjust a snubber?

February 23, 2011

Snubbers can be adjusted by either changing the initial position of the telescoping cylinder or by using (where available) the adjustable rod end feature to alter the length of the snubber.

Mechanical Snubber Assemblies Custom Designed for an Oil Refinery in California
Mechanical Snubber Assemblies

How does a hydraulic snubber work?

The basic working principal behind a hydraulic snubber is that under slow(normal) speeds, a piston moves within a hydraulic reservoir pushing hydraulicfluid from the front to the back (or visa versa) of that reservoir. When animpulse load occurs and the piston tries to move at a high speed, a valve willclose thereby restricting or blocking the movement of the fluid within thereservoir and subsequently locking the moving piston.

Hydraulic Snubber Assemblies for a LNG Processing Facility in Peru
Hydraulic Snubber Assemblies

What is a hydraulic snubber?

November 3, 2010

A hydraulic snubber is a device that permits pipe deflection under normal operating conditions, but when subjected to an impulse load, such as an earthquake, water hammer, etc., the snubber becomes activated and acts as a rigid restraint torestrict pipe movement as a result of the unwanted impulse loading.

A hydraulic snubber includes a hydraulic fluid reservoir and cylinder to produce the restraint force when activated.

Hydraulic Snubbers with Protective Boots
Hydraulic Snubbers with Protective Boots

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