Expander with accessories to adjust nominal size

An expander, comprising:

• a chassis;
• a floating pad, the floating pad disposed to be displaced relative to the chassis by at least one retractable and extendable piston, such that retraction and extension of the at least one piston is configured to transition the expander between a fully-retracted state and a fully-extended state, wherein the expander has a first expansion range between the fully-retracted state and the fully-extended state;
• a floating pad jacket disposed to be removably attached to the floating pad, such that the floating pad jacket increases the first expansion range of the expander to a second expansion range when the floating pad jacket is attached to the floating pad;
• and
• a spacer, the spacer disposed to be selectively interposed between the floating pad and the floating pad jacket, such that the spacer and floating pad jacket increase the first expansion range of the expander to a spaced expansion range when the floating pad jacket is attached to the floating pad with the spacer interposed therebetween.

An expander, comprising:

• a chassis;
• a floating pad, the floating pad disposed to be displaced relative to the chassis by at least one retractable and extendable piston, such that retraction and extension of the at least one piston is configured to transition the expander between a fully-retracted state and a fully-extended state, wherein the expander has a first expansion range between the fully-retracted state and the fully-extended state;
• a first cone positioned at a first end of the chassis and a second cone positioned at a second end of the chassis;
• a floating pad jacket disposed to be removably attached to the floating pad, such that the floating pad jacket increases the first expansion range of the expander to a second expansion range when the floating pad jacket is attached to the floating pad;
• a chassis jacket disposed to be removably attached to the chassis, such that the chassis jacket increases the first expansion range of the expander to a third expansion range when the chassis jacket is attached to the chassis;
• and
• first and second cone jackets each disposed to be removably attached to the first and second cones respectively;
• wherein an exterior surface of the expander is substantially continuous when:
• (1) the floating pad jacket, the chassis jacket and the first and second cone jackets are all attached to the floating pad, chassis and first and second cones respectively, and (2) the expander is in the fully-retracted state.