Description
Zurn ZRB190 Vertical Expansion Joint – Cast Iron, Threaded & No-Hub.
Product Overview
The Zurn ZRB190 Vertical Expansion Joint is purpose-built for managing the natural expansion and contraction of piping systems in commercial and industrial applications. Featuring a durable Dura-Coated cast iron body and a polished bronze sleeve, this joint is engineered for long-lasting performance under dynamic temperature and pressure conditions.
The ZRB190 includes a preformed neoprene packing gasket that ensures a tight, leak-proof connection and allows for smooth movement. Available in both threaded and no-hub configurations, and in sizes ranging from 2″ to 10″, it offers a versatile fit for various piping layouts. This vertical expansion joint provides a critical solution where thermal changes can create stress or misalignment in a pipeline.
Features & Benefits:
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Vertical Flexibility: Designed to accommodate expansion and contraction in vertical pipe runs
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Durable Cast Iron Construction: Dura-Coated cast iron body resists corrosion and wear
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Leak-Proof Seal: Preformed neoprene gasket ensures a watertight and flexible connection
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Polished Bronze Sleeve: Enhances movement and reduces internal friction
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Multiple Sizes: Offered in 2″, 3″, 4″, 5″, 6″, 8″, and 10″ sizes for widespread compatibility
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Threaded or No-Hub Connections: Available in IP threaded or NH no-hub outlet types
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Reliable Performance: Helps reduce stress on pipe joints caused by temperature fluctuation
Specifications:
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Body Material: Dura-Coated Cast Iron
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Sleeve: Polished Silicon Bronze
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Gasket: Preformed Neoprene
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Pipe Size Options: 2″–10″
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Connection Options:
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IP Threaded
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NH No-Hub
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Approximate Weight Range: 8 lbs to 45 lbs
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Vertical Expansion Allowance:
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Minimum: 4″
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Maximum: 20″ (varies by pipe size)
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Height (Body Dimension): Varies by size, from 6 1/2″ to 11 3/4″
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Standard Finishes: Optional galvanized finish (-G suffix)
Installation Tips:
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Install vertically to accommodate thermal movement and prevent stress on the piping system
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Ensure adequate clearance for full expansion range—verify minimum and maximum expansion travel per size
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Use in conjunction with rigid supports to guide expansion direction
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Refer to local plumbing code for proper placement and spacing
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Apply appropriate sealant for threaded installations and torque to manufacturer’s specifications
FAQs:
Q: What does a vertical expansion joint do?
A: It allows piping systems to expand and contract with temperature changes without causing leaks or damage.
Q: Can this joint be used in horizontal pipe runs?
A: No, the ZRB190 is designed specifically for vertical installation only.
Q: How do I select between threaded and no-hub connections?
A: Threaded connections are typically used in smaller systems, while no-hub connections are common in commercial cast iron pipe installations.
Q: Is the neoprene gasket replaceable?
A: Yes, the neoprene packing gasket can be replaced if necessary during maintenance.
Q: What is the maximum temperature this unit can handle?
A: The neoprene gasket and cast iron body perform well under standard plumbing temperatures, but always verify temperature specs with system design parameters.
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