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RED-WHITE VALVE CORP.  |  SKU: 30083274  |  MPN: 9517IBV 050 050F050F

Fixed Orifice Double Regulating Globe Valve with Isolation Ball Valve | 9517IBV Series | DZR Brass

$82.30
Valve Size
End Connection
Flow Option
  • Precision Balancing – Fixed orifice design ensures accurate, repeatable hydronic flow control
  • Isolation Ball Valve – Allows shutoff without disturbing preset balancing
  • Venturi Measurement – Provides reliable differential pressure readings
  • DZR Brass Body – Dezincification-resistant construction for long service life
  • Memory Stop Control – Maintains preset handwheel position after servicing
📄 Download Spec Sheet

Fixed Orifice Double Regulating Globe Valve with Isolation Ball Valve | 9517IBV Series | DZR Brass

The 9517IBV Fixed Orifice Double Regulating Globe Valve is a hydronic balancing solution designed for flow measurement, regulation, and positive isolation in closed-loop HVAC systems. Manufactured from DZR (dezincification-resistant) brass, this valve is built for durability and consistent performance in hydronic applications.

Featuring an integrated Venturi insert and fixed orifice design, the 9517IBV supports repeatable flow readings when tested in accordance with BS7350. A built-in isolation ball valve provides positive shutoff for maintenance, while the memory stop helps return the handwheel to a preset balancing position after service.

Flow ranges available: The 1/2" valve is offered in Standard, Low, Ultra-Low, and Extra-Low flow ranges. The 3/4" and 1" valves are offered in Standard Flow configurations.

Key Features

  • Fixed Orifice Double Regulating Design: Supports accurate flow measurement and stable hydronic balancing.
  • Venturi Insert: Provides differential pressure readings for dependable flow calculation.
  • Integrated Isolation Ball Valve: Enables full ON/OFF isolation without disturbing balancing settings.
  • Memory Stop Function: Helps maintain preset handwheel position for faster recommissioning.
  • DZR Brass Construction: Engineered for long service life in hydronic systems.
  • Multi-Turn Adjustment: Minimum of four full turns for fine balancing control.
  • Union End Design: Accepts interchangeable tailpieces for common hydronic connection styles.
    Tailpieces sold separately unless otherwise specified.
  • Tailpiece Options (varies by configuration): FNPT, MNPT, Solder, and Press tailpieces available. Need a different configuration? Contact us for a quote.
  • Serviceable Design: Blow-out-proof stem and adjustable packing for long-term reliability.

Technical Specifications

  • Series: 9517IBV
  • Valve Type: Fixed Orifice Double Regulating Globe Valve with Isolation Ball Valve
  • Material: DZR Brass (UNS C35330)
  • Pressure Rating: 300 WOG
  • Temperature Range: 15°F to 260°F (water systems)
    Below 32°F only with antifreeze additives; above 212°F only with anti-boiling fluids
  • Flow Measurement Standard: BS7350
  • Flow Accuracy: ±3% of nominal Cvs (per BS7350 testing)
  • Sizes Available: 1/2", 3/4", 1"

⚠ California Prop 65 Warning:
This product may 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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