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Bell & Gossett Venturi Balance and Flow Measurement Valve with Ball/Butterfly Valve

Brand: Bell & Gossett

Bell & Gossett Venturi valves provide balance, ease of commissioning, and shut-off for use in a wide range of HVAC systems.

The venturi design combines efficient and accurate flow balancing with minimal pressure loss.

The ball/butterfly valve provides complete shut-off capability for use when servicing a section of your system.

Venturi valves are available in a wide range of sizes and connections to meet all your system demands.

Brass valves, in sizes ½” through 2”, utilize a calibrated full port ball valve and feature a memory stop and two integrated pressure/temperature ports for easy ∆P measurement.

Additionally, all brass Venturi valves feature a union tailpiece inlet connection, allowing for quick installation and servicing of system components.

For larger sized systems, our steel Venturi valves are available in sizes from 2½” to 12” with your choice of flanged, grooved, or weld end connections.

The optional butterfly valve includes a 10 position memory stop and can provide complete shut off. Valves also include 2” pressure/temperature ports for easy ∆P measurement even in insulated systems.
Features
  • Accurate Flow Control and Measurement
  • Sizes from 1/2” – 12”
  • Multiple End Connections Available
  • Flow Range up to 7,200 GPM
  • Integrated Valved Readout Ports

Specifications

Body

  • C37700 Brass

Ball

  • Chrome-Plated Brass

Ball Seat

  • PTFE

O-Rings

  • EPDM

Handle

  • Chrome-Plated Steel with Vinyl Cover

Stem

  • Explosion-proof
  • Stainless Steel

Venturi Body

  • Carbon Steel

Butterfly Valve Body

  • Nodular Cast Steel

Disc

  • Aluminum / Bronze

Liner

  • EPDM

Max Working Pressure

  • 150 psig (1034 kPa)

Temperature Range

  • -4° F (-20° C) to 230° F (111° C) without Butterfly Valve
  • -4° F (-20° C) to 212° F (100° C) with Butterfly Valve
  • -4° F (-20° C) to 250° F (121° C)

Accuracy

  • ± 1 % between 0.36 psi & 2.53 psi ∆P
  • ± 3 % between 0.18 & 0.36 psi and 2.53 & 5.42 psi ∆P
  • ± 5 % for ∆P 5.42 psi
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