Rubber Expansion Joints
Pipe expansion joints are necessary in systems that convey high temperature substances such as steam or exhaust gases, or to absorb movement and vibration. A typical joint is a bellows of metal (most commonly stainless steel), plastic (such as PTFE), fabric (such as glass fibre) or an elastomer such as rubber. A bellows is made up of a series of convolutions, with the shape of the convolution designed to withstand the internal pressures of the pipe, but flexible enough to accept axial, lateral, and angular deflections. Expansion joints are also designed for other criteria, such as noise absorption, anti-vibration, earthquake movement, and building settlement. Metal expansion joints have to be designed according to rules laid out by EJMA, for fabric expansion joints there are guidelines and a state-of-the-art description by the Quality Association for Fabric Expansion Joints. Pipe expansion joints are also known as "compensators", as they compensate for the thermal movement.
Single Sphere Rubber Expansion Joint 150# Flanged Size (Flange ID x Overall Length)
Product Specification FEATURES Size Options = (Flange ID x Overall Length) Provides sound and vibration isolation. Gaskets and packing are not required. Floating flanges allow for easy installation. Prevents piping system and equipment breakdown by absorbing elongation and contraction caused...
from $64.99
Double Sphere Rubber Expansion Joint 150 lb. Drilled Floating Flanges
Product Specification FEATURES Provides sound and vibration...
from $69.99
Twin Sphere Rubber Expansion Joint (Female Threaded Unions)
Efficient noise and vibration isolation. Ability to absorb large displacement due to eccentric, axial, and angular movement. Applicable for both suction and discharge. Female Threaded Unions allow for easy installation. Do NOT elongate rubber expansion joints when installing for suction...
from $42.84