shock control, restraint & support devices · iso 9001-2000 certified sweco fab, inc. asme...

Shock Control, Restraint & Support DevicesShock Control, Restraint & Support Devices

Piping Technology & Products, Inc.

Presenter: Jerry Godina

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Attention P.E.’s: this Webinar is worth 1 PDH credit for TX P.E.’s (send request to [email protected])

Piping Technology & Products, Inc. • www.pipingtech.com

Fronek Anchor Fronek Anchor Darling Ent., Inc.Darling Ent., Inc.

ASME Nuclear Qualified

Pipe Shields, Inc.Pipe Shields, Inc.

ISO 9001-2000 Certified

Sweco Fab, Inc.Sweco Fab, Inc.

ASME U-Stamp

PT&P and SubsidiariesPT&P and Subsidiaries

PIPING TECHNOLOGY PIPING TECHNOLOGY & PRODUCTS, INC.& PRODUCTS, INC.

Member of MSS, SPED, APFA

U.S. Bellows, Inc.U.S. Bellows, Inc.

Member of EJMA

To learn more about who we are, visit the about us section on pipingtech.com


Presentation OverviewPresentation Overview

Sway Struts

Rigid support

Does not allow movement in tension & compression

Allows for rotational movement

Sway Braces

Uses springs to provide restraint force

Allows movement in tension & compression

Variable spring rates available

Snubbers

Allows movement intension & compressionunder normal conditions

Activated when animpulse event occurs

Acts as a restraint

Available in Hydraulicand Mechanical


Snubbers Snubbers –– General General

Schematic of Snubber


Snubbers Snubbers –– Overview Overview

Hydraulic Mechanical

Type of Motion

Normal Operation

Breakaway/Drag Force

Sensitivity

Dynamic Response

Temperature

Humidity

Corrosion Characteristics

Common Design Requirements:


Schematic of Hydraulic Snubber Hydraulic Snubber

Snubbers Snubbers –– Hydraulic Hydraulic

Under “Normal” Conditions


Schematic of Hydraulic Snubber Hydraulic Snubber


Under “Locked” Conditions


Picture of a Hydraulic Snubber


Cut-Section View


Reservoir

Adjustable Rod End

Lock Nut

Extension Piece

Cylinder

Flow Control Assembly

Stroke PositionDatum Point

Piston Rod End


Exploded-View of Hydraulic Snubber


Optional Design Features for Hydraulic Snubbers

Protective Boot

Adjustable Flow Control

Device

Without Protective Boot



Custom Design

C – CDimension


Adjustable Length Hydraulic Snubbers



Custom Design

225,000 lb. Load Hydraulic Snubber



Application of aHydraulic Snubber

Close-Up View of Snubber

Replacement of a Hydraulic Snubber

• load conditions change

• leaking fluid

• use a pressurized reservoir

• damage


Mechanical SnubberMSA Mechanical Snubber

Cut-Section View

Snubbers Snubbers –– Mechanical Mechanical



dynA/Damp Mechanical Snubber



Adjustable Length Mechanical Snubbers Fixed End Mechanical Snubbers

Mechanical Snubbers used to restrain thermal movement during abnormal circumstances.

Size range in retractedposition for this project: 18" to 80"

Maximum load capacityrange: 700 lb. to 10,000 lb.

Computer controlled hydraulic test at both highand low rates of loading



Mechanical Snubber & Clamp Assemblies

Maximum shock load: 1500 lb.

Travel capacity range: 1" to 5"

61 snubber assemblies, including custom designed yoke clamps fabricated from Chrome-Moly (A387 Gr.91), stainless steel u-bolts and protection saddles.


Tandem Snubber Configuration




Mechanical Snubber Application


Snubbers Snubbers –– Snubber Maintenance Snubber Maintenance


Snubbers Snubbers –– Quality Control Quality Control

Snubber Cycle Test on a Mechanical Snubber

#1 Display the normal wear and tear for a snubber over an extended period of time.

#2 Display the resistance to an abrupt disturbance.

Snubbers are tested in two modes of operation. High rates of loading, especially impact, should provide high resistance to movement and low speeds should provide low resistance to movement. After the test is completed, report data is analyzed and alternatives are proposed that will aid the value in meeting the drag forces’ common criteria of 2% or less than the rated load.


Snubbers Snubbers –– Quality Control Quality Control

Snubber Cycle Test on a Hydraulic Snubber


Sway Braces Sway Braces –– Overview Overview

Max Load (lb.)

Spring Rate lb./in.

TravelSize

720018003”6

540013503”5

36009003”4

18004503”36001503”220050 3”1

Standard Sway Braces


Sway Braces Sway Braces –– Application Application

Sway Braces on Shipping Floor

Application: Petroleum Company


Sway BracesSway Braces

126" Long Carbon Steel Sway Braces Custom Design

Carbon Steel

Load capacity: 1500 lb.

Travel: 10 ½"

Spring rate: 150 lb./in.


Sway BracesSway Braces

Sway Braces with Precision Machined Pivoting Ball JointsCustom Design

For stabilizing tall stacks in a Coker Plant

Load capacity: 8000 lb.

Deflection capability: up to ±9" in all directions

Size range: 70" to 144"


Sway Braces Sway Braces –– Quality ControlQuality Control

Sway Brace Travel Test


Sway Struts Sway Struts –– OverviewOverview

Standard Sway Struts

8

7

6

5

4

3

2

1

C

B

A

Size

120244”8000

120254”11630

12025 ½4”15700

12020 ½4”4500

12029 ½4”20700

6018 ¾4”650

Maximum C-CMinimum C-CAdjustmentMax Load (lb.)

12041 ½4”120000

12038 ½4”68200

12035 ½4”33500

12032 ½4”27200

10820 ½4”1500


Sway Struts Sway Struts –– Overview Overview

4" of Adjustment

Mini Strut Style 1 Mini Strut Style 2


Sway StrutsSway Struts

Various Sizes of Sway Struts



QC Measuring C – C Dimension

Sway Struts Prepared for Shipping



Carbon Steel Sway Strut Assemblies with Custom Designed 3-Bolt Clamps, Hot-Dipped Galvanized Finish and a Special 2-Coat Paint System.

Sway struts range in length form 25" to 70" pin to pin

Operating load range: 8000 lb. – 15,000 lb.

Pipe size range: 8" - 24"


Custom Design



Custom Design


Ball-Joint Sway Strut Assemblies Designed for an Ammonia Plant.

Overall Length: 96"

Load: 20,000 lb.


Custom Design


240" Sway Strut


Sway Struts Sway Struts –– Application Application

Sway Strut & Clamp Assembly


Sway Struts Sway Struts –– Application Application

Sway Strut Assembly


ValueValue--Added ServicesAdded Services

• STADAS Snubber Test

• Burst Test

• Helium Leak Test

• Cycle / Fatigue Test

• Lateral & Axial Load

• Pressure Test

• Stress Analysis

• Dye Penetrant Test

• Hydrostatic Test

• Finite Element Analysis

• X-ray Test

• Magnet Particle

• PMI Test

• Pneumatic Test

QA & Product TestingQA & Product TestingEmergency & Field ServicesEmergency & Field Services

Inventory / StockInventory / Stock

• > 30,000 spring coils

• > 1 million lb. of standard items

• Full year supply of beams, angles, plates, rods, etc.


Shock Control, Restraint & Shock Control, Restraint & Support DevicesSupport Devices WebinarWebinar

Please send any additional questions or inquiries to [email protected]

Thank You For AttendingThank You For Attending

• Online Quote: www.pipingtech.com/quote• Online Catalog: www.pipingtech.com/catalog• Technical Webinars: www.pipingtech.com/webinar• Blog: www.pipesupportsblog.com

shock control, restraint & support devices · iso 9001-2000 certified sweco fab, inc. asme...

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