Description
Rheem-Ruud SP623336 Lead-Free Vacuum Relief Valve Overview
The Rheem-Ruud SP623336 is a 3/4″ lead-free (LF) vacuum relief valve engineered to protect water heaters and hydronic systems from the damaging effects of negative pressure. When a vacuum condition develops within a water heater tank or piping system — such as during a rapid drain-down or supply interruption — this valve opens to admit air and equalize pressure, preventing tank collapse, siphoning, and structural damage.
Key Features
- 3/4″ connection size for straightforward installation on standard water heater fittings
- Lead-free (LF) construction meets NSF/ANSI and plumbing code requirements for potable water applications
- Designed as a genuine Rheem-Ruud OEM replacement part (SKU: SP623336)
- Automatically opens under vacuum conditions to prevent tank or system damage
- Durable materials suited for residential and light commercial water heating applications
- Direct drop-in replacement for compatible Rheem and Ruud water heater models
Application
The SP623336 vacuum relief valve is intended for use on Rheem and Ruud water heaters where vacuum protection is required by code or manufacturer specification. It is commonly installed on the cold water inlet side of the water heater to safeguard the tank from negative pressure events.
Why Choose a Genuine OEM Part?
Using a genuine Rheem-Ruud replacement valve ensures proper fit, function, and compliance with original equipment specifications. OEM parts maintain warranty integrity and deliver the reliability that professional HVAC and plumbing contractors depend on.
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