RW-504AB LF Brass Boiler Drain
The RW-504AB LF Brass Boiler Drain is a heavy-duty, safety-certified solution designed for reliable performance in residential and commercial plumbing systems. Crafted with lead-free brass and engineered to meet rigorous industry standards, this valve ensures safe drinking water compliance while delivering leak-free operation in high-pressure environments. Its versatile design accommodates both threaded and soldered connections, making it ideal for HVAC, water heaters, and boiler applications.
Key Features & Benefits:
- Lead-Free Brass Construction: Compliant with AB1953, NSF/ANSI 61 & 372 certifications for toxin-free potable water systems.
- Dual Connection Versatility: ½” MNPT x Hose threading (ASME B1.20.1-NPT) and copper solder compatibility for flexible installation.
- No-Kink Reinforced Spout: Heavy-duty design prevents kinking during draining, ensuring smooth, uninterrupted flow.
- High-Pressure Rated: 125# CWP (125 PSI) rating withstands demanding applications without compromising integrity.
- Corrosion-Resistant Build: Durable brass body resists wear, even in harsh or high-moisture environments.
- Certifications & Compliance:
✔️ AB1953 Lead-Free Compliance
✔️ NSF/ANSI 61 (Drinking Water Safety)
✔️ NSF/ANSI 372 (Low-Lead Content)
Ideal For:
- Boiler drain and HVAC systems
- Water heater maintenance and repair
- Residential/commercial plumbing retrofits
- Solder or threaded connection requirements
Why Choose This Valve?
The RW-504AB combines versatility and safety in a compact, professional-grade design. Its lead-free brass body and certified materials meet strict regulatory standards, while the no-kink spout and dual connection options simplify installations. Built to handle 125 PSI pressure, this valve is a go-to for plumbers and DIYers prioritizing reliability, compliance, and ease of use.
Note: Ensure proper soldering techniques for copper tube compatibility. Always confirm system pressure and thread specifications before installation.
Dimension
| Size | T | S [m] | F | A [m] | C [m] | H [m] | B [m] | P [m] | D [m] | Wt. [lb] |
|---|---|---|---|---|---|---|---|---|---|---|
| ½" | ½ - 14NPT | 0.627-0.631 | ½ 11.5NH | 1.46 | 0.61 | 3.43 | 2.09 | 0.51 | 0.47 | 0.44 |
| ¾" | ¾ - 14NPT | - | ¾ 11.5NH | 1.46 | 0.62 | 3.44 | 2.09 | 0.51 | 0.47 | 0.46 |
| Pressure Rating | Temperature Rating |
|---|---|
| 125 CWP | 180 °F max. temperature |
| Solder Used in Joint | Working Temp (°F) | Max. Working Pressure (PSI) |
|---|---|---|
| - | 100 | 500 |
| 95-5 Tin Antimony (ASTM B32 Grade 96TA) |
150 | 400 |
| - | 200 | 300 |
| - | 250 | 200 |
Material
| Part | Material | Specification |
|---|---|---|
| 1 | Body | Lead Free Brass ASTM B927 C27450 |
| 2 | Stem | Lead Free Brass ASTM B927 C27450 |
| 3 | Seat gasket | NBR 70SH NSF approved |
| 4 | Bonnet gasket | PTFE - |
| 5 | Bonnet | Lead Free Brass ASTM B927 C27450 |
| 6 | Packing ring | PTFE - |
| 7 | Packing nut | Brass ASTM B124 C37700 |
| 8 | Handwheel | Steel - |
| 9 | Disc | Aluminum - |
| 10 | Nut | Steel / Zn Plated ASTM A36 |