LENO MSV-O Manual Presetting Valve

Brand: Danfoss

LENO MSV-O is a new generation of manual valves for balancing flow in heating, cooling and domestic hot water systems. 

It is recommended to use LENO™ MSV-O in constant flow systems in front of boilers, flat stations or heat pumps in one-family houses for balancing, shut-off function for service and repair, flow verification, one pipe systems. 

The valve may be mounted in flow or return. 

LENO MSV-O is a combined presetting and shut off valve with a range of unique features:
  • Fixed Venturi Orifice
  • Removable Hand Wheel for Easy Mounting
  • Numeric Presetting Scale, Visible From More Angles
  • Easy Locking of Presetting
  • Open-Close with Allen Key in Emergency

Specifications

Brand

Accuracy

  • ± 10 % at Fully Open Position
  • 25 % of, Max.

Applications

  • Balancing Flow for Heating Systems
  • Constant Flow Systems in Front of Boilers
  • Cooling Systems
  • Domestic Hot Water System

Ball Material

  • Brass
  • Chromium-Plated

BSP Connection

  • G 1”
  • G 1/2”
  • G 1-1/2”
  • G 1-1/4”
  • G 2”
  • G 3/4”
  • 1” BSPP Female
  • 1/2” BSPP Female
  • 1-1/2” BSPP Female
  • 1-1/4” BSPP Female
  • 2” BSPP Female
  • 3/4” BSPP Female

Differential Pressure

  • Maximum

Enclosure, Body Material

  • Valve Body: DZR Brass

Flow Rate

  • 0.37 to 22.31 scfm (0.63 to 37.9 m³/hour)

Media

  • Cooling Liquids: Ethylene Glycol, Max.
  • Cooling Liquids: Propylene Glycol, Max.

O-Ring Material

  • EPDM

Pipe Connection

  • 1” Pipe (DN 25)
  • 1/2” Pipe (DN 15)
  • 1-1/2” Pipe (DN 40)
  • 1-1/4” Pipe (DN 32)
  • 2” Pipe (DN 50)
  • 3/4” Pipe (DN 20)

Rotation

  • Shut-Off Function of a Ball Valve: 90°
  • Turn on the Valve: 360° (If Threaded Pipe is Used)

Seat / Seal Material

  • Ball Sealing: Teflon

Static Pressure

  • Maximum
  • Static Test Pressure - psi: 435.1 (kPa: 3,000, bar: 30)

Temperature Range

  • Flow Temperature Range: -20° to 120° C (-4° to 248° F)

Valve Type

  • Manual Preset

  • Balancing Flow for Heating Systems
  • Constant Flow Systems in Front of Boilers
  • Cooling Systems
  • Domestic Hot Water System

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