Women Owned Business Enterprise
RED-WHITE VALVE CORP.  |  SKU: 30077977  |  MPN: RW-516ABF 1/2

Hydronic Boiler Drain Valve | RW-516ABF | Lead-Free Brass | PEX x Hose

$15.75
Each
  • Lead-Free Brass Construction — Certified lead-free body and end pieces (ASTM B927 C27453 & C27450) meet NSF/ANSI 61 & 372 standards for safe drinking-water use.
  • Chrome-Plated Ball — High-quality lead-free brass ball with chrome finish resists corrosion and ensures smooth operation.
  • Reliable PTFE & NBR Sealing — Virgin PTFE seats and double NBR O-rings deliver superior leak protection and longevity.
  • PEX (F1807) × Hose Design — Enables quick connection to PEX systems with hose outlet for drain or flushing functions.
  • Certified Performance — Rated 125 CWP and NSF/ANSI 61 & 372 approved for potable-water and heating applications.
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Hydronic Boiler Drain Valve | RW-516ABF Series | Lead-Free Brass | PEX × Hose

Red-White Valve’s RW-516ABF Lead-Free Brass PEX Ball Valve Boiler Drain delivers long-lasting performance for hydronic and plumbing systems. Built with DZR lead-free brass and tested to NSF/ANSI 61 & 372 and AB1953 standards, this ECO-VALVE model provides a durable, code-compliant solution for draining, flushing, and controlling water flow in heating systems.

Key Features

  • Lead-Free Construction — Body and end pieces manufactured from ASTM B927 C27453/C27450 brass with ≤ 0.25 % lead on wetted surfaces, compliant with the U.S. Safe Drinking Water Act.
  • Chrome-Plated Brass Ball — Provides smooth operation, corrosion resistance, and long-term sealing integrity.
  • Reliable PTFE & NBR Sealing — Virgin PTFE seats and double NBR O-rings deliver dependable, leak-free service under pressure.
  • PEX (F1807) × Hose Design — Connects directly to PEX tubing with a hose outlet for system draining or water discharge.
  • Boiler Drain Flange — Built-in flange simplifies installation on hydronic heating systems and plumbing lines.
  • Certified Performance — 125 CWP rating; NSF/ANSI 61 & 372 and AB1953 certified for potable-water safety.

Pressure / Temperature Rating

Pressure Rating Max Temperature
125 CWP 180 °F max

Dimension / Weight

Size T A [in] H [in] H1 [in] L [in] ΦP [in] ΦP1 [in] ΦD [in] ΦD1 [in] ΦD2 [in] Wt [lb]
½″ ¾ – 11.5 NH 1.44 1.20 1.59 1.89 0.31 0.31 2.26 0.26 1.73 0.41
¾″ ¾ – 11.5 NH 1.44 1.20 1.59 1.89 0.31 0.31 2.26 0.26 1.73 0.43

Material Construction

# Part Material Specification
1 Body DZR Lead-Free Brass ASTM B927 C27453
2 End Piece Lead-Free Brass ASTM B927 C27450
3 Ball Lead-Free Brass / Chrome Plated ASTM B927 C27450
4 Seat PTFE PTFE
5 Stem Lead-Free Brass ASTM B927 C27450
6 O-Ring NBR 70 SH NSF Approved
7 Handle Aluminum ASTM B85
8 Handle Nut Steel / Zn Plated ASTM A36

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

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