Steel WA-64-EE 4in 100mm ASA150 EPDM Flanged Rubber Expansion Joint

This is a new WA-64-EE single-sphere rubber expansion joint with a 4-inch (100mm) pipe bore, EPDM elastomer bulb construction, and carbon steel flanges drilled to ASA/ANSI 150 bolt patterns. The EPDM elastomer body provides excellent resistance to water, steam, ozone, and many dilute chemical services, while the steel retaining rings clamp and seal the bulge bead into the flange face to form a full-face connection. The single-sphere design absorbs axial compression and extension, lateral offset, and angular deflection simultaneously, making it suitable for pump inlet and outlet isolation, HVAC piping, and general industrial fluid transfer systems where vibration isolation and thermal movement compensation are required. The box label explicitly states 'Not for use with water for human consumption,' and the Grainger catalog reference 45NE61 appears on the shipping label confirming the product identity. Flanges are machined steel with a zinc-plated finish; bolt holes are uniformly spaced on a standard ASA 150 bolt circle for 4-inch pipe.

Product Specifications