Field Instruments

General

FRESE OPTIMA Compact pressure independent balancing & control valve (PIBCV) is used in heating and cooling systems in applications with Fan Coil Units, Chilled Beams or other terminal unit applications.

OPTIMA Compact provides modulating control with full authority regardless of any fluctuations in the differential pressure of the system.

OPTIMA Compact combines an externally adjustable automatic balancing valve, a differential pressure control valve and a full authority modulating control valve.

OPTIMA Compact makes it simple to achieve 100% control of the water flow in the building, while creating high comfort and energy savings at the same time.

An additional benefit is that no balancing is required if further stages are added to the system, or if the dimensioned capacity is changed.

Energy saving due to optimal control, lower flow and pump pressure. Maximized ∆T due to faster response and increased system stability.    

Features

• The presetting function has no impact on the stroke; Full stroke modulation at all times, regardless the preset flow
• The constant differential pressure across the modulating control component guarantees 100% authority
• Automatic balancing eliminates overflows, regardless of fluctuating pressure conditions in the system
• Compatible with thermic actuators On/Off or 0-10V, normally closed. Also compatible with motoric actuators  0-      10V, (Linear or Logarithmic) or 3 point control
• Differential pressure operating range up to 800 kPa
• High flows with minimal required differential pressure due to advanced design of the valve
• Small dimensions due to compact housing
• Higher presetting precision due to stepless analogue scale
• Rangeabililty > 100:1

Specifications

• Make : Frese
• Model: 53-1354
• Connection size: DN 25
• Connection type: Internal thread
• Flow: 550-4001 l/h
• Measuring insertion: No
• Pressure: PN 25
• Temperature:120 °C

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