Twin-Sphere Molded Rubber Expansion Joints Stainless Steel (Series SAMT)

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Twin Sphere Molded Rubber Expansion Joints Stainless Steel (Series SAMT)

FEATURES

  • Applicable for suction and delivery (discharge).
  • Designed for greater compression, elongation, and angular movement than the single sphere expansion joint.
  • Excellent for absorbing thermal expansion and eliminating sound and vibration.
  • Gaskets and packing not required.
  • Good electrical insulator.
  • Absorbs water pulsation and minimizes water hammering.

APPLICATIONS

  • Pressure piping systems in building equipment and general industrial plants.
  • Pump and turbine lines used for power generation plants, industrial machinery and universal pump blowers.
  • Feed-water & drainage lines for waterworks & sanitary piping systems.
  • Pipelines for industrial plants and shipbuilding yards.

DIMENSION & ALLOWABLE MOVEMENTS

API Part NumberSizeFace To Face DimensionsAllowable Motion Ratings*
Compression
Allowable Motion Ratings*
Elongation
Allowable Motion Ratings*
Lateral
Allowable Motion Ratings*
Angular
Installation Tolerances
Compression
Installation Tolerances
Elongation
Installation Tolerances
Lateral
Installation Tolerances
Angular
SAMT201H1.57.002.001.131.7535⁰0.250.130.3110⁰
SAMT20227.002.001.131.7535⁰0.250.130.3110⁰
SAMT202H2.57.002.001.131.7535⁰0.250.130.3110⁰
SAMT20337.002.001.381.7535⁰0.250.130.3110⁰
SAMT20449.002.001.381.5635⁰0.250.130.3110⁰
SAMT20559.002.001.381.5630⁰0.250.130.3810⁰
SAMT20669.002.001.381.5630⁰0.250.130.3810⁰
SAMT208813.002.381.381.3830⁰0.250.130.5010⁰
SAMT2101013.002.381.381.3830⁰0.250.130.5010⁰
SAMT2121213.002.381.381.3820⁰0.250.130.5010⁰
SAMT2141413.751.561.131.1320⁰0.250.130.3110⁰
SAMT2161613.751.561.131.1320⁰0.250.130.3110⁰
SAMT2181813.751.561.131.1320⁰0.250.130.3110⁰
SAMT2202013.751.561.131.1320⁰0.250.130.3110⁰
SAMT2242413.751.561.131.1320⁰0.250.130.5010⁰

*Non Concurrent Ratings.

Warning: Do NOT elongate rubber expansion joints when installing for suction service.

OPERATING CONDITIONS

Size Range1.5” - 12”14” - 24”
Operating Pressureup to 214 psiup to 114 psi
Operating Temp. Range*14⁰-170⁰ F (Neoprene)
14⁰-210⁰ F (EPDM)
14⁰-170⁰ F (Neoprene)
14⁰-210⁰ F (EPDM)
Burst Pressure853 psi340 psi
Vacuum Rating*Contact API SalesContact API Sales
*Warnings:
  • Pressure ratings listed in the above table are for up to 110 Degrees F (for Neoprene), and 125  Degrees F (for EPDM). For elevated temperature service, please contact API Sales for actual working pressure ratings.
  • Limit rods are required in systems that are unanchored and recommended in all other applications.

MATERIALS

PartPart DescriptionMaterial
1FlangesStainless Steel
2Reinforcement FabricSynthetic Fiber
3Reinforcing WireMild Steel Strands
4TubeSynthetic Rubber
5CoverSynthetic Rubber
6Root RingMild Steel - Plated
Note: Customized for flanges ANSI-150, ANSI-300 and DIN
AMT Series Twin Sphere Rubber Expansion Joints SS - Flange x Flange-Drawing