1-1/4″ Press Rotated Isolator Flange With Multi-Function Drain

Product Overview

The Webstone H-81415HV Isolator® High-Velocity Ball Valve Assembly is a 1-1/4 inch press connection isolation valve designed for hydronic and mechanical systems requiring full-port flow and integrated service functionality. This valve features a rotating flange and a multi-function drain for simplified system maintenance, flushing, and component replacement. Constructed from forged lead-free brass, the assembly is engineered for high-velocity flow conditions with a working pressure rating of 250 CWP and a maximum operating temperature of 250°F.

Technical Specifications

• Manufacturer: Webstone, a brand of NIBCO
• Model Number: H-81415HV
• Alternate Part Number: 81415HV
• Description: 1-1/4″ Press Isolator® with Multi-Function Drain and Rotating Flange – High Velocity
• Reference Number: 2005043
• Connection Type: Press x Rotating Flange
• Nominal Size: 1-1/4 in
• Valve Type: Full-port forged brass ball valve
• Drain Feature: Multi-function service drain with hose thread and cap
• Body Material: Forged lead-free brass (NSF/ANSI 61 & 372 compliant)
• Pressure Rating: 250 psi CWP (Cold Working Pressure)
• Temperature Rating: Up to 250°F (121°C)
• Seal Material: PTFE seats with adjustable packing gland
• Flange Design: Rotating flange with nuts and bolts for easy alignment and service access
• Flow Capacity: High-velocity, full-port design minimizes pressure loss
• Handle Type: Lever handle with positive stop and blowout-proof stem
• Applications:
  • Hydronic heating and cooling circuits
  • Boiler isolation and service applications
  • Pump isolation and maintenance points
  • Mechanical system manifolds and control loops
• Mounting Orientation: Horizontal or vertical installation as required
• Compliance:
  • ANSI/NSF 61-G & 372 Lead-Free Certified
  • Manufactured in accordance with MSS SP-110
• Installation: Compatible with standard press-fitting tools conforming to ASTM F3226 specifications

Summary

The Webstone H-81415HV 1-1/4″ Press Isolator® with Multi-Function Drain and Rotating Flange is a high-velocity brass valve assembly engineered for professional hydronic and mechanical installations. Rated for 250 psi and 250°F, it provides a full-port flow path, integrated service drain, and rotating flange connection for simplified maintenance and long-term system reliability.