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Style 234-L: Lateral Designed Quadruple Arch Expansion Joint

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Proco Products
Style 234-L: Lateral Designed Quadruple Arch Expansion Joint

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Catalog page (2.52 MB)
IO&M Manuals
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2X18234-L-BB-2XFG1SW-Z Style 234-L: Lateral Designed Quadruple Arch Expansion Joint
Style of Expansion Joint
Nominal I.D. (in. | mm)
Note: Flange drillings shown are in accordance with ANSI B16.1 and ANSI B16.5 Class 125/150, AWWA C-207-07, Table 2 and 3 - Class D, Table 4 - Class E. Hole size shown is 1/8'' larger than AWWA standard
Maximum Design/Surge Pressure (PSI @ 170ºF | Bar @ 76ºC) 145 PSI | 10 Bar
Neutral Length (in. | mm) 18 in. | 457 mm
Media (Fluid): See compatible materials reference document.
Note: Prior to order placement for this product the customer is responsible for verifying that the selected expansion joint style and material is suitable for their service/application. Proco always recommends the use of control units.
Expansion Joint Material (Elastomer)
Maximum System Temperature (ºF)   [ 0 .. >170< .. 250 ]
Control Units Required?
System Design Pressure (PSI)   [ 0 .. >145< ]
No. of Control Units Recommended: 2
Note: The recommend number of control units is based on a test pressure of 1.5 times the system design pressure.
Type of Control Unit Configuration
Add spherical washers Yes
Control Unit Material

Bill of Materials Data

Manufacturer PROCO Products, Inc.
Description Style 234-L: Lateral Designed Quadruple Arch Expansion Joint
Part number 2X18234-L-BB-2XFG1SW-Z
Note 1: Movements listed are non-concurrent, for concurrent movements please contact Proco Products, Inc.
Axial Compression Movement 2.75 in. | 70 mm
Axial Extension Movement 1.97 in. | 50 mm
Lateral Deflection Movement 8 in. | 200 mm
Angular Deflection Movement (Deg.) 63.1
Torsional Rotation Movement (Deg.) 2
Thrust Factor 10.03 in² | 65 cm²
Maximum Pressure Rating (At 170ºF | 76ºC) 145 PSI | 10 Bar
Max. Vacuum Rating (At 170ºF | 76ºC) 26 in. of Hg | 660mm of Hg
Note 2: Spring rate forces required to move expansion joints are based on zero pressure conditions and room temperature in the pipe line.
Axial Compression Spring Rate 166 lbs/in. | 29 N/mm
Axial Extension Spring Rate 217 lbs/in. | 38 N/mm
Lateral Deflection Spring Rate 276 lbs/in. | 48 N/mm
Angular Deflection Spring Rate 0.12 ft-lbs/º | 0.16 Nm/º

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