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Home : Products : Pressure Independent Control Valves : OPTIMA Compact DN50-DN300

Frese OPTIMA

Technical info

See how the PICV works Video - Valve noise measurement Images, data sheets, drawings etc.

OPTIMA Compact

Pressure Independent Control Valve

With OPTIMA Compact you get a dynamic flow and temperature control valve for heating and cooling systems

OPTIMA Compact combines the functions of an externally adjustable dynamic balancing valve, a differential pressure control valve and a full authority modulating control valve in one single, compact valve housing.

The OPTIMA Compact provides modulating control with full authority regardless of variations in the differential pressure of the system making it possible to achieve 100% control of the water flow in the building.

In addition, the correct application of the OPTIMA Compact can significantly reduce pump energy consumption and improve the efficiency of other hydronic system components. It also provides optimal comfort for end users due to high precision temperature control.

The valve operates by adjusting automatically to the pre-set flow under fluctuating pressure conditions whilst also providing full modulating control. To achieve the design flow rate, the simple pre-setting scale on top of the valve is rotated to the required set point, which can be determined by using the Frese flow tables or the Frese Valves app.

OPTIMA Compact is also available in a Veriflow-series. This has an additional P/T plug which allows for both flow measurement and verification of minimum differential pressure across the valve. This is the first pressure independent control valve (PICV) on the market to integrate both functionalities in the original valve housing without add-ons and additional space requirements.

Frese Academy - Learn more about OPTIMA Compact Actuators

Benefits

Design

Less time to define the necessary equipment for a hydraulic balanced system (only flow data are required)
No need to calculate valve authority. Always one.
Flexibility if the system is modified after the initial installation

Installation

Lower weight and smaller outer dimensions makes installation easier
More flow variants to match the required flows in the application
No further regulating valves required in the distribution pipework when OPTIMA Compact Veriflow is installed at the units
Total number of valves minimized due to the 3-in-1 design
Minimized commissioning time due to automatic balancing of the system
No minimum straight pipe lengths required before or after the valve

Operation

High comfort for the end-users due to high precision temperature control
Longer life due to less movements of the actuator

Features

Measurement of flow and minimum differential pressure due to valve design with 3 P/T plugs
The presetting function has no impact on the stroke; Full stroke modulation at all times, regardless the preset flow
Regulation characteristic remains unchanged regardless of 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
Motoric actuator 0-10 V and 3 point control
Differential pressure operating range up to 800 kPa
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
Rangeability > 100:1

Downloads

BrochureOPTIMA Compact DN50-DN300

Data sheetOPTIMA Compact, Veriflow DN50-DN300

Data sheetOPTIMA Compact ANSI

Data sheetFrese Stem Heater

WhitepaperPICV vs Static Balancing

Mounting instructionOPTIMA Compact DN50-DN300

Mounting instructionOPTIMA Compact, Veriflow-series DN50-DN300

Declaration of ConformityOPTIMA Compact DN50-DN300

Declaration of ConformityOPTIMA Compact, Veriflow DN50-DN300

Frese OPTIMA

Performance beyond size

PICV - With the highest performance and best energy efficiency Frese OPTIMA is setting new control standards in heating and cooling systems.

Full modulating control and maximized ΔT

With Frese OPTIMA PICV you will get modulating control with full authority regardless of any fluctuations in the differential pressure of the system.

Maintaining optimal control, lower flow and lower pump pressure means great energy savings. At the same time you will maximize ΔT due to a much faster response and an increased system stability.

An always balanced system means great energy savings

Frese OPTIMA PICV 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. No balancing is required if further stages are added to the system, nor if the dimensioned capacity is changed.

Pressure independent balancing & control valve

Frese OPTIMA PICV combines an externally adjustable automatic balancing valve, a differential pressure control valve and a full authority modulating control valve. Used in heating and cooling systems Frese OPTIMA (PIBCV) fits applications with air handling units, heat exhangers or mixing circuits.

Benefits

Design

Less time to define the necessary equipment for a hydraulic balanced system (only flow data are required)
No need to calculate valve authority. Always one.
Flexibility if the system is modified after the initial installation

Installation

No further regulating valves required in the distribution pipework when Frese OPTIMA PICV is installed at the units.
Total number of valves minimized due to the 3-in-1 design
Minimized commissioning time due to automatic balancing of the system
No minimum straight pipe lengths required before orafter the valve.

Operation

High comfort for the end-users due to high precision temperature control
Longer life due to less movements of the actuator

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.
Electro mechanical actuator 0-10 V and 3 point control.
Differential pressure operating range up to 600 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

Frese OPTIMA Compact DN40-DN150

Female/Female with 1” P/T plugs incl. modulating actuator

1200C, PN16, GJL-250

Category Frese no. Dimension Stroke Maximum flow Price

DN l/h

J 53-1375-01 40 15 8,000 260.00

J 53-1376-01 50 15 11,500 277.00

Flange with1” P/T plugs incl. modulating actuator

1200C, PN16, GJL-250

Category Frese no. Dimension Stroke Maximum flow Price

DN l/h

J 53-1200-02 50 Low flow 20 16,000 605.00

J 53-1210-02 50 High flow 20 25,000 715.00

J 53-1201-02 65 Low flow 20 25,000 715.00

J 53-1211-02 65 High flow 20 35,000 765.00

J 53-1202-02 80 Low flow 20 34,000 795.00

J 53-1212-02 80 High flow 20 43,000 890.00

J 53-1203-02 100 Low flow 40 70,000 1,210.00

J 53-1213-02 100 High flow 40 90,000 1,410.00

J 53-1204-02 125 Low flow 40 110,000 1,985.00

J 53-1214-02 125 High flow 40 135,000 2,185.00

J 53-1205-03 150 Low flow 40 148,000 TBA

J 53-1215-03 150 High flow 40 195,000 TBA

Flange with1” P/T plugs incl. modulating actuator

1200C, PN25, GJS-400 (DN125 & DN150 GJL250)

Category Frese no. Dimension Stroke Maximum flow Price

DN l/h

J 53-1220-02 50 Low flow 20 16,000 720.00

J 53-1230-02 50 High flow 20 25,000 830.00

J 53-1221-02 65 Low flow 20 25,000 870.00

J 53-1231-02 65 High flow 20 35,000 920.00

J 53-1222-02 80 Low flow 20 34,000 955.00

J 53-1232-02 80 High flow 20 43,000 1,055.00

J 53-1223-02 100 Low flow 40 70,000 1,420.00

J 53-1233-02 100 High flow 40 90,000 1,620.00

J 53-1224-02 125 Low flow 40 110,000 2,190.00

J 53-1234-02 125 High flow 40 135,000 2,390.00

J 53-1225-03 150 Low flow 40 148,000 TBA

J 53-1235-03 150 High flow 40 195,000 TBA