Application Guide. Compensators Hose Assemblies Expansion Joints FLEX-WELD INCORPORATED FLEX-WELD.COM. Manufactured By:

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1 Compensators Hose Assemblies Expansion Joints Manufactured By: FLEX-WELD INCORPORATED FLEX-WELD.COM

2 What we need to know... A. Physical / System Parameters 1 Size of Assembly: Measure Pipe size (ID) of the system Inches 2 Type of Piping Material Determine piping material being used Carbon Steel Copper 3 Installed Length (OAL): Length of pipe measured from anchor to anchor Inches 4 Type of Media: Indicate if liquid, steam, gas, exhaust, slurry, solids, etc. 5 Design Pressure of the System: Highest/Most severe pressure during operation Positive PSIG Negative HG 6 Operating Pressure: Acutal Pressure which system works under in normal conditions Positive PSIG Negative HG 7 Temperature of Flowing Media: Indicate both operating and maximum temperatures of the system 8 Temperature of Surrounding Atmosphere: Indicate both min. & max. termperatures of atmosphere at the expansion joint 9 Velocity of Flowing Media: In feet/sec or Gallons/Min Operating F Maximum F Minimum F Maximum F Feet/Sec Gal/Min 10 Movement (Compression/Extension): In inches as a result of system extension/expansion Compression in Inches Extension in Inches 11 Lateral Deflection/Offset: In inches Inches 12 Angual Movement: In degrees Degrees

3 B. Product Requirements PRODUCT TYPE 1 COMPENSATOR BRAIDED HOSE EXPANSION JOINT GENERAL PURPOSE PUMP CONNECTOR Straight Loop MC 30MC END 1 FLANGED ENDS GROOVED ENDS WELD ENDS MALE NPT THREADS FEMALE SWEAT ENDS 150# Copper 300# Plate Raised Face END 2 FLANGED ENDS GROOVED ENDS WELD ENDS MALE NPT THREADS FEMALE SWEAT ENDS 150# Copper 300# Plate Raised Face

4 3 CONNECTION MATERIAL (Expansion Joints, General Purpose & Pump Connector only) Carbon Steel 304 SS 316L SS 4 WETTED MATERIALS (Expansion Joints, General Purpose & Pump Connector only) 304 SS 316L SS 321 SS Monel (Contact Factory) Inconel (Contact Factory) 5 MOVEMENT 1 1/2 4 (Ke-loop Only) Other (Please Specify) 6 HOSE & BRAID MATERIAL (Braided Hose & Ke-loop Only) SS Bronze (End fittings must be copper sweat ends) 7 BRAID REQUIREMENT (Braided Hose & Ke-loop Only) Single Double 8 NESTING REQUIREMENTS (Ke-loop only, see worksheets) OTHER PRODUCT REQUIREMENTS & NOTES: 9

5 How to Use the Thermal Expansion Table: Example: Find the expansion 0f 105ft. Of any diameter carbon steel pipe carrying steam at 138 PSIG and at a lowest surrounding ambient temperature of 40 F. Maximum temperature = 360 F (138 PSIG saturated steam) Calculated traverse (from table) Expansion per 100 ft. of carbon steel at 360 F = 2.88 Less expansion per 100 ft. of carbon steel pipe at 40 F = 0.30 Expected traverse per 100 ft. = 2.58 Expansion of 105 ft. = (105 / 100) x 2.58 = 2.71 Conclusion: Since an expansion joint is normally set at 80% in compression and 20% in extension, an expansion joint with 4 total axial movement should be selected. NOTE: The shaded area indicates the maximum and minimum recommended temperature for each material. For applications requiring lower or higher temperatures, consult the factory. From the Piping Handbook by Sabin Crocker, McGraw-Hill Publishing Co. & Acme Paper No. 53-A-52, NOTE: Expansion joints are not designed to absorb torsional movement or stress. Subjecting an expansion joint to torsion of any amount may drastically affect operating life and will void the warranty. Consult factory if torsion is present. Saturated Steam Vacuum in HG below 212 F, Pressure, PSIG above 212 F Temp. F Cast Iron Carbon Steel or Steel Thermal Expansion of Pipe in Inches per 100 Feet Wrought Iron 4-6% Cr. Alloy Steel 18 Cr.-8Ni Stainless Steel Copper

6 Ke-Loop L-Flex Nesting Worksheet L-Flex Nest Position Pipe ID (inches) End Fitting Seismic All Directions Movement Max. Compression Extension Service PSI/Temp Insulation Thickness OAL Distance Between Pipe Centers Inner Middle 1 Middle 2 Middle 3 Outer Ke-Loop V-Flex Nesting Worksheet V-Flex Nest Position Pipe ID (inches) End Fitting Seismic All Directions Movement Max. Compression Extension Service PSI/Temp Insulation Thickness OAL V-Flex Distance Between Pipe Centers Inner Y1 Middle 1 Y2 Middle 2 Y3 Middle 3 Y4 Outer Y5

7 Ke-Loop U-Flex Nesting Worksheet Consult factory for quiding recommendations U-Flex Nest Position Pipe ID (inches) End Fitting Seismic All Directions Movement Max. Compression Extension Service PSI/Temp Insulation Thickness OAL U-Flex Distance Between Pipe Centers Inner Y1 Middle 1 Y2 Middle 2 Y3 Middle 3 Y4 Outer Y5 Anchoring and Guiding KEFLEX Compensators Compensators used in risers and radiation lines require adequate anchoring and guiding. Main anchors are necessary at the end of each pipe run, with guides installed to prevent the line from bowing, buckling or becoming misaligned because of thermal expansion or internal pressures. Pipe hangers and rollers are not considered to be adequate as guides. The main anchors must restrain the ends of the pipe so that all expansion is directed into the compensator. The main anchors must also withstand the end thrust force of the internal pressure. This force is shown in the Thrust Force Data Table. Compensators should not be subjected to hydrostatic pressure tests beyond their rated working pressures. If a higher pressure test is required, the factory should be advised. The inside of all piping must be clean before installing and testing compensators. Before the pipe lines are hydrostatically tested, all anchors and pipe guides must be secured. The contractor installing sweat end type compensators is advised to use a soft solder. Excessive heat used to make the solder joint may have a detrimental effect on the compensator. Soldered joints should be washed thoroughly so as to neutralize or remove acids used in solder fluxes Recommended Positioning of Guides, Anchors, & Compensators Expansion compensators must be both correctly selected and properly installed for effective performance in service. The reactions created by pressure and movement within the piping system should be carefully considered and the following precautions taken at installation: System design must not create torque on expansion compensators. See diagrams for typical installation practices. Piping centerlines should be precisely aligned. All set pins must be removed after installation. Anchors must be of sufficient strength to withstand the thrust pressure of the pipe section.

8 Pipe Guide Spacing Guidelines for Copper Tube Tube Size 4 X D 14 X D Maximum Spacing for Intermediate Guides for Copper Water 25 PSI 3/ / / / / / Pipe Guide Spacing Guidelines for Standard Weight Carbon Steel Pipe Pipe Size Max Distance EJ to 1st Guide or Anchor Approx. Distance Approximate Distance Between Additional Pipe Guides Between 1st & 2nd 50 PSI 3/ / / / / KEFLEX 1425 Lake Avenue Woodstock, IL MADE IN THE USA flex-weld.com Ph: Fax: