3301AB Lead Free Brass Solder Water Heater Isolation Valve Kit

Engineered for precision and durability, the 3301AB Lead Free Brass Solder Isolation Valve combines NSF/AB1953 compliance with a robust 600 PSI WOG rating, making it ideal for residential and commercial water heater installations. Featuring a union body design and color-coded hot-side operation (red handle), this valve ensures leak-free performance and easy maintenance in demanding environments.

Key Features & Benefits

✔️ Solder x FNPT Union Body – ASME B1.20.1-NPT threaded tailpiece and solder end for secure, permanent connections in copper piping systems.
✔️ Hot-Side Operation – Red handle clearly identifies the hot water valve, reducing installation errors.
✔️ 600 PSI WOG Industrial Rating – Full-port design with virgin PTFE seats ensures maximum flow and durability in water, oil, or gas applications.
✔️ Lead-Free Compliance – Meets California’s AB1953 and NSF-61/372 standards for safe potable water systems.
✔️ Union Body Convenience – Simplifies disassembly for maintenance without cutting pipes.

Technical Specifications

• Connections: Solder x FNPT (ASME B1.20.1-NPT)
• Operation: ¼-turn with blow-out-proof stem
• Materials: Lead-free brass, PTFE seats
• Pressure Rating: 600 PSI WOG (non-shock)
• Handle Color: Red (hot water identification)
• Standards: NSF/ANSI/CAN 61, NSF-372, AB1953

Why Choose This Valve?

• Error-Proof Installation – Color-coded red handle ensures correct hot-side valve placement.
• Maintenance-Friendly Union Design – Disassemble for repairs without disturbing piping.
• Durable Construction – Adjustable packing and blow-out-proof stem extend service life.
• Zero Contamination Risk – Lead-free brass and PTFE seats comply with strict drinking water standards.

Ideal Applications

• Residential and commercial water heaters
• Potable water supply lines
• Hydronic heating systems with copper piping
• Maintenance shut-offs for hot water tanks
• Retrofit projects requiring code-compliant upgrades

Built for Safety & Longevity

✅ AB1953 + NSF Certified – Safe for drinking water and compliant with lead-free regulations.
✅ Industrial Durability – 600 PSI rating withstands pressure surges and thermal stress.
✅ Contractor-Approved – Union body design saves hours during repairs or replacements.

Engineered for Precision – Trusted by professionals for reliable isolation control in critical water systems.

Lead-Free | Union Body | Hot-Side ID

*3301AB: Red handle