AN1 & AN2 Angular Bellow


Material Specification:

  • Connections: Carbon steel Drilled PN16 (Van-stone facings on AN2, other flanges available if required).
  • Convolutions: 321 stainless steel (316 stainless steel on AN2).
  • Internal Sleeve: 321 stainless steel (316 stainless steel on AN2).
  • Hinge Pins: Carbon steel.

The AN1 and AN2 Angular Expansion compensators are suitable for use on systems up to 2000C at 16 bar pressure. All units are supplied at installation lengths and are pre stressed. Please note we can design and supply angular expansion compensators to accommodate higher system temperatures / pressures or special dimensions. Please advise at time of enquiry / order the system temperature and pressure to allow correct selection of compensator.

PED Requirements

CE Certificates issued if required. All units are categorised to PED standards, and we require accurate temperatures and pressures at time of order to enable correct selection and certification.

Standard Installation

These units are commonly used in pairs, although three pin systems can be designed if required. Please contact our Sales Office for application and design advice. These units can be used on a drop rod system. Please contact Shawston Technical Department for positioning of anchors and subsequent support centres.

Key Features:

  • AN1 for steel pipes.
  • AN2 for copper and stainless steel.
  • Supplied with CE certs where applicable.
  • Internal flow liner as standard.
CODE Size (mm) Angular Deflection Installed Length Effective Area CM2 Force To Deflect NM/ DEG
EXAN1025PN1625+/- 50195401.27
EXAN1032PN1632+/- 50195403.04
EXAN1040PN1640+/- 50200403.04
EXAN1050PN1650+/- 50133403.34
EXAN1065PN1665+/- 50133621.47
EXAN1080PN1680+/- 50133811.47
EXAN1100PN16100+/- 501331271.27
EXAN1125PN16125+/- 6.501991953.04
EXAN1150PN16150+/- 6.501992733.04
EXAN1200PN16200+/- 7.502124693.34
EXAN1250PN16250+/- 7.502127003.04