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The set is designed to regulate forced water flow in the central heating installation. while maintaining flow proportion control and simultaneous temperature monitoring. The main element of the set is a circulation pump with built-in valves equipped with thermometers to measure the water temperature at the supply and return of the central heating system. The pump group prevents the natural circulation of liquid as a result of temperature differences within the pump group and, among others, the boiler. The set’s casing is made of EPP polypropylene, is characterized by high thermal insulation, light, resistant to mechanical damage, harmless – chemically neutral.

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Ekologiczne urządzenia grzewcze Ready-made 2-circuit sets with a distributor

DES 50 DN 25 2S system

Index: DES 50 DN 25 2S
Set composition: • Hydraulic clutch • Two pump groups without mixing valves • Mounting console
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DES T 50 DN 25 2S system

Index: DES T 50 DN 25 2S
Set composition: • Hydraulic clutch • Pump group without mixing valve • Pump group with thermostatic valve 20-45°C • Mounting console
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DES ZS 50 DN 25 2S system

Index: DES ZS 50 DN 25 2S
Set composition: • Hydraulic clutch • Pump group without mixing valve • Pump group with a 3-way mixing valve and an actuator • Mounting console
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DGP-25/180 pump group

Nominal diameter: DN 25
Maximum working pressure: 10 bar
Maximum operating temperature: 110°C
Insulation material: Brass, EPP
Connections: installation side - GW 1” boiler side - GZ 1½” (flat seal)
Pump installation length: 180 mm
KVS value of the module: 8,0
Optional equipment - for an additional fee: Ecoflow Energy pump, Ecoflow Energy Plus pump, magnetic filter
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Distributor coupling for pump groups – DSR 2S DN25

Index: DSR 2S DN25
Nominal diameter: DN 25
Maximum working pressure: 10 bar
Maximum operating temperature: 110°C
Connections: Installation side - GW 1½" (flat seal) boiler side - GZ 1½"
Materials: steel, S235, EPP, brass
Natural fluid circulation: EPDM
Connection spacing on the installation side: 130 mm
Flow: 3,44 m³/h
Maximum heating power/flow: 80 kW (ΔT=20K)
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Distributor coupling for pump groups – DSR 3S DN25

Index: DSR 3S DN25
Nominal diameter: DN 25
Maximum working pressure: 10 bar
Maximum operating temperature: 110°C
Connections: Installation side - GW 1½" (flat seal) boiler side - GZ 1½"
Materials: steel, S235, EPP, brass
Natural fluid circulation: EPDM
Connection spacing on the installation side: 130 mm
Flow: 3,44 m³/h
Maximum heating power/flow: 80 kW (ΔT=20K)
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Distributor coupling for pump groups – DSR 4S DN25

Index: DSR 4S DN25
Nominal diameter: DN 25
Maximum working pressure: 10 bar
Maximum operating temperature: 110°C
Connections: Installation side - GW 1½" (flat seal) boiler side - GZ 1½"
Materials: steel, S235, EPP, brass
Natural fluid circulation: EPDM
Connection spacing on the installation side: 130 mm
Flow: 3,44 m³/h
Maximum heating power/flow: 80 kW (ΔT=20K)
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Hydraulic coupling DSH 40 DN 25

Index: DSH 40 DN 25
Nominal diameter: DN 25
Maximum working pressure: 8 bar
Connections: ½ ” / 1 ” / 1½ ” GW
Materials: EPP 60g/l, S235 steel, brass
Heating power: 40 kW
Maximum flow: 2,5 m3/h
Maximum operating temperature: 110°C
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Hydraulic coupling DSH 70 DN 25

Index: DSH 70 DN 25
Nominal diameter: DN 25
Maximum working pressure: 8 bar
Connections: ½ ” / 1 ”
Materials: EPP 60g/l, S235 steel, brass
Heating power: 70 kW
Maximum flow: 3,0 m3/h
Maximum operating temperature: 110°C
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Hydraulic coupling DSH 70 DN 25 2S

Index: DSH 70 DN 25 2S
Nominal diameter: DN 32
Maximum working pressure: 8 bar
Connections: ½ ” / 1 ” / 1½ ” GW
Materials: EPP 60g/l, S235 steel, brass
Heating power: 70 kW
Maximum flow: 3,0 m3/h
Maximum operating temperature: 110°C
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Hydraulic coupling DSH 90 DN 32

Index: DSH 90 DN 32
Nominal diameter: DN 32
Maximum working pressure: 8 bar
Connections: ½ ” / 1¼ ”
Materials: EPP 60g/l, S235 steel, brass
Heating power: 90 kW
Maximum flow: 4,8 m3/h
Maximum operating temperature: 110°C
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Manifold for pump groups – DR 2S DN25

Index: DR 2S DN25
Nominal diameter: DN 25
Maximum working pressure: 10 bar
Maximum operating temperature: 110°C
Connections: Installation side - GW 1½” (flat seal) boiler side - GZ 1½”
Materials: steel, S235, EPP, brass
Natural fluid circulation: EPDM
Connection spacing on the installation side: 130 mm
Flow: 3,44 m³/h
Maximum heating power/flow: 80 kW (ΔT=20K)
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Manifold for pump groups – DR 3S DN25

Index: DR 3S DN25
Nominal diameter: DN 25
Maximum working pressure: 10 bar
Maximum operating temperature: 110°C
Connections: Installation side - GW 1½" (flat seal) boiler side - GZ 1½"
Materials: steel, S235, EPP, brass
Natural fluid circulation: EPDM
Connection spacing on the installation side: 130 mm
Flow: 3,44 m³/h
Maximum heating power/flow: 80 kW (ΔT=20K)
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Manifold for pump groups – DR 4S DN25

Index: DR 4S DN25
Nominal diameter: DN 25
Maximum working pressure: 10 bar
Maximum operating temperature: 110°C
Connections: Installation side - GW 1½" (flat seal) boiler side - GZ 1½"
Materials: steel, S235, EPP, brass
Natural fluid circulation: EPDM
Connection spacing on the installation side: 130 mm
Flow: 3,44 m³/h
Maximum heating power/flow: 80 kW (ΔT=20K)
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Pump group with 3-D DGP-T-25/180 thermostatic mixing valve

Nominal diameter: DN 25
Maximum working pressure: 10 bar
Maximum operating temperature: 110°C
Insulation material: Brass, EPP
Natural fluid circulation: EPDM
Connections: installation side - GW 1” boiler side - GZ 1½” (flat seal)
Pump installation length: 180 mm
Maximum heating power/flow: 35 kW (ΔT=20K) / 1500 l
Valve KVS value: 4,0
KVS value of the module: 3,3
Temperature adjustment range: 20-45°C
Optional equipment - for an additional fee: Ecoflow Energy pump, Ecoflow Energy Plus pump, magnetic filter, non-return valve
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Pump group with 3-D DGP-Z-25/180 mixing valve

Nominal diameter: DN 25
Maximum working pressure: 10 bar
Maximum operating temperature: 110°C
Insulation material: Brass, EPP
Connections: installation side - GW 1” boiler side - GZ 1½” (flat seal)
Pump installation length: 180 mm
Maximum heating power/flow: 35 kW (ΔT=20K) / 1500 l
Valve KVS value: 10,0
KVS value of the module: 6,0
Optional equipment - for an additional fee: Ecoflow Energy pump, Ecoflow Energy Plus pump, magnetic filter, non-return valve
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Pump group with 3-D mixing valve and DGP-ZS-25/180 actuator

Nominal diameter: DN 25
Maximum working pressure: 10 bar
Maximum operating temperature: 110°C
Insulation material: Brass, EPP
Connections: installation side - GW 1” boiler side - GZ 1½” (flat seal)
Pump installation length: 180 mm
Valve KVS value: 10,0
KVS value of the module: 6,0
Valve actuator: 6 Nm 120s / 230 V AC / 3-st
Optional equipment - for an additional fee: Ecoflow Energy pump, Ecoflow Energy Plus pump, magnetic filter, non-return valve
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Ready-made 2-circuit sets with a clutch distributor

Set composition: 2x - pump group / acc. selected option 1x - distributor clutch
Additional information: The price of the selected set depends on the selected version - in accordance with the DEFRO Installation Fittings price list
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Ready-made 2-circuit sets with a distributor

Set composition: 2x - pump group / acc. selected option 1x - distributor
Additional information: The price of the selected set depends on the selected version - in accordance with the DEFRO Installation Fittings price list
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Ready-made 3-circuit sets with a clutch distributor

Set composition: 3x - pump group / acc. selected option 1x - clutch distributor
Additional information: The price of the selected set depends on the selected version - in accordance with the DEFRO Installation Fittings price list
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Ready-made 3-circuit sets with a distributor

Set composition: 3x - pump group / acc. selected option 1x - clutch distributor
Additional information: The price of the selected set depends on the selected version - in accordance with the DEFRO Installation Fittings price list
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