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

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AMT Series Twin Sphere Rubber Expansion Joints SS - Flange x Flange
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AMT Series Twin Sphere Rubber Expansion Joints SS – Flange x Flange

AMT Series Twin Sphere Rubber Expansion Joints SS - Flange x Flange-Drawing

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.

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
SAMT201H1-1/2"7"2"1-1/8"1-3/4"35⁰1/4"1/8"5/16"10⁰
SAMT2022"7"2"1-1/8"1-3/4"35⁰1/4"1/8"5/16"10⁰
SAMT202H2-1/2"7"2"1-1/8"1-3/4"35⁰1/4"1/8"5/16"10⁰
SAMT2033"7"2"1-3/8"1-3/4"35⁰1/4"1/8"5/16"10⁰
SAMT2044"9"2"1-3/8"1-9/16"35⁰1/4"1/8"5/16"10⁰
SAMT2055"9"2"1-3/8"1-9/16"30⁰1/4"1/8"3/8"10⁰
SAMT2066"9"2"1-3/8"1-9/16"30⁰1/4"1/8"3/8"10⁰
SAMT2088"13"2-3/8"1-3/8"1-3/8"30⁰1/4"1/8"1/2"10⁰
SAMT21010"13"2-3/8"1-3/8"1-3/8"30⁰1/4"1/8"1/2"10⁰
SAMT21212"13"2-3/8"1-3/8"1-3/8"20⁰1/4"1/8"1/2"10⁰
SAMT21414"13-3/4"1-9/16"1-1/8"1-1/8"20⁰1/4"1/8"5/16"10⁰
SAMT21616"13-3/4"1-9/16"1-1/8"1-1/8"20⁰1/4"1/8"5/16"10⁰
SAMT21818"13-3/4"1-9/16"1-1/8"1-1/8"20⁰1/4"1/8"5/16"10⁰
SAMT22020"13-3/4"1-9/16"1-1/8"1-1/8"20⁰1/4"1/8"5/16"10⁰
SAMT22424"13-3/4"1-9/16"1-1/8"1-1/8"20⁰1/4"1/8"1/2"10⁰
*– Non Concurrent Ratings.

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

OPERATING CONDITIONS

Size Range1-1/2” - 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:
a. 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.
b. 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

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.

Note: Customized for flanges ANSI-150, ANSI-300 and DIN

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