Hydronic Isolation Valve Kit | 3300AB Series | Solder × FNPT | Full Port | Lead-Free Brass

Hydronic Isolation Valve Kit | 3300AB Series | Solder × FNPT | Full Port | Lead-Free Brass

RWV 3300AB Hydronic Isolation Valve Kit delivers a complete, code-compliant solution for efficient and safe water heater installations. Built from lead-free brass (ASTM B927 C27450), the valve ensures long-term reliability, corrosion resistance, and compliance with AB1953 and NSF/ANSI/CAN 61 & 372 standards for potable water applications.

Featuring a full-port ball design, 600 PSI WOG rating (non-shock), and ¼-turn operation, this isolation valve kit supports high-flow performance and quick shut-off for maintenance or replacement tasks. Designed for both residential and commercial systems, it comes in 3301AB (Red Handle) for hot water and 3302AB (Blue Handle) for cold water installations.

Key Features & Benefits

• Certified Lead-Free Construction — Made from ASTM B927 C27450 brass and compliant with AB1953 and NSF/ANSI/CAN 61 & 372 for potable water systems.
• 600# WOG Non-Shock Rating — Designed to handle high-pressure hydronic and plumbing system demands.
• Full-Port Flow Design — Minimizes pressure drop and supports maximum flow for high-efficiency operation.
• ¼-Turn Operation — Provides fast, reliable shut-off and easy flow control.
• Dual Connection Ends — Features Solder × FNPT (ASME B1.20.1) connections for versatile installation options.
• Safety & Reliability — Blow-out-proof stem and adjustable PTFE packing ensure leak-free performance and long-term durability.
• Color-Coded Handles — 3301AB Red Handle for Hot Water, 3302AB Blue Handle for Cold Water applications.

Dimension & Weight

Material Construction

*3301AB: Red Handle, 3302AB: Blue Handle

Warning (California Prop 65): This product can expose you to chemicals including lead, known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, visit www.P65Warnings.ca.gov.