Zurn ZRB190 Vertical Expansion Joint (Z190)

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Outlet: Threaded
Connection Size: '-2" [51mm]
Sale Price$283.99 USD
Available to Order

Zurn ZRB190 Vertical Expansion Joint (Z190) ENGINEERING SPECIFICATION: ZURN ZRB190 Vertical Expansion Joint, Dura-Coated cast iron body, packing gland and siliconed bronze sleeve with preformed neoprene packing gasket. The Z190 Vertical Expansion Joint is designed to help prevent damage to roofs and piping around roof drains due to thermal expansion and contraction. The Expansion Joint Sleeve will slide inside the Expansion Joint Body when thermal movement occurs. This allows the pipes other connections to remain intact.

Technical Documentation:

Zurn ZRB190 Vertical Expansion Joint (Z190) Specification Submittal: Click Here.

Zurn ZRB190 Vertical Expansion Joint (Z190) Typical Installation: Click Here.

Zurn ZRB190 Vertical Expansion Joint (Z190) DWG File: Click Here.


For typical applications the expansion joint should be adjusted to the midpoint of its overall length to allow for equal movement in both directions prior to installation. To do this, loosen all three nuts until the sleeve can be adjusted to the correct length. The length should be halfway between the min. and max. "B" dimension found on Table 1 for the size joint you have. Once correct length is achieved, nuts should be tightened until gasket creates watertight seal between sleeve and body. Care should be taken to make sure sleeve and body are aligned straight with each other and not cocked to one side. Also gasket should be checked periodically to make sure it is in good condition and not loose.

Cross Reference:

Zurn ZRB190 Vertical Expansion Joint (Z190) Crosses:

  • Ancon / Watts: RD-900, RD-902, RD-903, RD-904.
  • Mifab: R1900, R1902, R1903, R1904, R1906, R1908.
  • JR Smith: 1710, 1710-02, 1710-03, 1710-04, 1710-06, 1710-08.

Product Sku Variants:

Available As: ZRB-190-2NH (ZRB190-2NH), ZRB-190-3NH (ZRB190-3NH), ZRB-190-4NH (ZRB190-4NH), ZRB-190-6NH (ZRB190-6NH), ZRB-190-8NH (ZRB190-8NH), ZRB-190-10NH (ZRB190-10NH), ZRB-190-2IP (ZRB190-2IP), ZRB-190-3IP (ZRB190-3IP), ZRB-190-4IP (ZRB190-4IP), ZRB-190-6IP (ZRB190-6IP), ZRB-190-8IP (ZRB190-8IP), ZRB-190-10IP (ZRB190-10IP).

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