The valves in series 20.900/21.900 are soft seated gate valves, made of ductile iron, manufactured in accordance with severe product norms and relevant norms, and in conformity to EN ISO 9001; They are available in the following versions:
20.900> flat body (reduced face to face)
21.900> oval body (long pattern face to face)
These valves are suitable for heating and conditioning (HVAC), water treatment and water distribution, waste water, industrial applications, agricultural purposes. Also available with NBR coated soft seat (20.901); suitable for sewage.

They allow the fitting of an ISO 5210 adaptor kit for a wide range of actuators to be fitted.
NO: for steam, for chocking and regulation of the flow. Not suitable for fluids containing oils and hydrocarbons.

Accessories

• Square cap for water main system connection
• Stem extension
• Kit: ISO 5210 flange for mounting actuators
• (only Series 20.900 DN40-300)
• ON/OFF position indicator on request with limit switches (only Series 20.900 DN40-300)

Actuators

• Electric actuators

Flat body

20.900 Body: ductile iron EN GJS 500 - Soft seat: EN GJS 400-15+EPDM - Stem: AISI 420

20.901 Body: ductile iron EN GJS 500 - Soft seat: EN GJS 400-15+NBR - Stem: AISI 420

Sizes: DN40÷300
Coating: RAL 5005 colour

PN Max 16 bar
Temp. EPDM - NBR -10 +85 °C
Drilling: PN10/16

Oval body

21.900 Body: ductile iron EN GJS 500 - Soft seat: EN GJS 400-15+EPDM - Stem: AISI 420

Sizes: DN40÷250

Coating: RAL 5005 colour

The valves in the series EKOFLUX balance the flow in main circuits or single sections of heating or conditioning plants.
They allow correcting irregularities in the supply of the single users (irregularities which might cause noise and damage the components of the plant) and, as a result, improve environmental comfort and optimize energy consumption.

They perform shut-off and measuring functions. The continuous presetting function allows controlling the loss of pressure and of the flow rate.

They can be installed indifferently on the supply piping and on the return piping.

It also allows the transmission of the delivery pressure to the DPCV pressure regulator.

DN 50 has F/F threaded end. In order to be installed between flanges it could be equipped with add-on flanges, suitable for PN 16 and ANSI 150 flanges.

Accessories

• Electronic instrument for measuring the differential pressure, flow rate and balancing of the circuit
• Pressure gauge probe adaptor

Modulating differential pressure control valve DPCV

The modulating valves in series EKOFLUX.D balance and control the differential pressure (DPCV) automatically and proportionally.

The valve balances the flow in the main network or in the single risers and branches of a heating/conditioning system, controls and keeps the differential pressure over the load at
a stable value, reducing the risk of noisiness and wear of the thermostatic control valves. Moreover, correcting the imbalances of the supply between the user units assures a better environmental comfort together with an optimization of the energy consumption.

The regulation range of the differential pressure delivered is comprised between 0.2 - 1 and 0.8 - 1.6 bar for DN65-100 and between 0.2 and 0.8 bar for DN125-150.
Does not require an external energy supply.

Accessories
Pressure gauge probe adaptor
Fitting, adapter, compression fitting, copper capillary pipe, test plug.

Pressure independent control valve PICV

Balancing valve EKOFLUX.PI controls and regulates the flow to appliances or sections of cooling and heating plants. It is suitable to be integrated in automated building management
system.
Compensating the pressure variations and keeping constantthe system performace in case of load changes, assures an improvement of enviromantal comfort as well as a pumping cost reduction.

EKOFLUX.S Body: cast iron EN GJL 250 - Seal: EPDM

Sizes: DN50÷300
Coating: RAL 5002 colour

PN Max 16 bar
Temp. -10 +140 °C
Drilling: PN16

EKOFLUX.DL Controllable differential pressure range: 0,2 - 1 bar

EKOFLUX.DH Controllable differential pressure range: 0,8 - 1,6 bar

Sizes: DN65÷150
Coating: RAL 5002 colour

PN Max 16 bar
Temp. -10 +120 °C
Drilling: PN16

EKOFLUX.PI Body: cast iron EN GJL 250 - Seal: EPDM

With gear box

With electric actuator

Sizes: DN65÷150
Coating: RAL 5002 colour

PN Max 16 bar
Temp. -10 +120 °C
Drilling: PN10/16

The ECO 3F flanged backflow preventers, which have a controllable reduced pressure zone, type BA EN1717, are approved in conformity with EN12729 and are manufactured in accordance with the most severe product norms and in conformity with the quality requirements of EN ISO 9001.

They consist of 2 spring check valves and a chamber situated between the spring check valves that contain a security valve, which in the event of “backflow”, isolates the primary network from the user network. The backflow might be caused by siphoning (the entry pressure decreases due to ruptures in the piping upstream, the water supply is interrupted, partially draining parts of the piping, as a result of the events upstream) or by increasing counter pressure (the pressure of the user network is higher than the pressure in the primary network due to overpressure caused, for example, by incoming water pumped from a private water well).

Backflow preventers are indispensable to prevent contamination of the distribution network of the drinking water from entering from connected user units (for example, washing machines, boilers, industrial plants, hospitals, laboratories, fire fighting
plants). Backflow preventers BA type assure protection, in case of backflow, against the risk of pollution for types of water up to category 4, according reference standard EN1717. They are not suitable for water of category 5 (fluid presenting a human health hazard due to the presence of microbiological or viral elements);
in this case an air gap separation must be used

For correct installation, it is necessary to install a filter upstream with respect to the backflow preventer, in order to prevent problems caused by dirt and residual parts present in the piping, such as shut-off valves upstream and downstream with
respect to the backflow preventer.

Series ECO3F backflow preventer, even if marked PN10 complying with reference normative EN12729, due to its design and testing characteristics is suitable for installation in firefighting networks with service pressure of 12 bar.

Accessories
ECO3 TEST: control instrument

Special version
Pre-assembled unit

ECO3F Body: cast iron EN GJS 250

RAMPA Unit composed of: 2 shut-off valves + 1 Y strainer + 1 backfl ow preventer

Sizes: DN65÷150
Coating: RAL 5002 colour

PN Max 10 bar
Temp. -0 +65 °C
Drilling: PN10

Series B2.1 valves are shut-off ball valves split-body type in ductile iron and floating ball, manufactured according to the relevant product standards and the quality management relative to ISO 9001.
Suitable for heating and conditioning (HVAC), district heating, distribution and treatment of water, industrial application, agricultural application, for compressed air processing, for oils and hydrocarbon, for fire fighting.

YES: for installation in line and end of line, for services with frequent acting, the integrated ISO 5211 support allows the installation of a wide range of actuators. The B2.1 range of ball valves are full and straight bore reducing turbulences and minimizing head loss.
NO: for steam, for choking and flow regulation.

Accessories

• Stem extension for thermal insulation
• Square cap for water main system connection
• Stem extension
• Kit ISO 5211 flange
• Kit lockable operation lever
• Kit limit switches for ON/OFF position indicator

Actuators

• Double acting and single acting pneumatic actuators
• On request: limit switches, position indicator
• Electric actuators
• Gear box

For WATER: NBR O-Ring (max 100°)

Body: ductile iron EN GJS 400-15

Ball and stem: brass CuZn40Pb2
Ball: AISI 304 - Stem: brass CuZn40Pb2
Ball and stem: AISI 304
Ball: AISI 316 - Stem: AISI 304

Sizes: DN15÷250

Coating: RAL 5002 colour

PN Max 16 bar
Temp. NBR -10 +100 °C
Foratura/drilling: PN6/10/16/ANSI150

For GAS: NBR O-Ring - Body: EN GJS 400-15

Gas Ball and stem: brass CuZn40Pb2
Gas Ball: AISI 304 - Stem: brass CuZn40Pb2
Gas Ball and stem: AISI 304
Gas Ball: AISI 316 - Stem: AISI 304

Sizes: DN15÷150

Coating: RAL 5002 colour

FKM O-Ring (max 150°C)

Body: EN GJS 400-15

FKM Ball and stem: brass CuZn40Pb2
FKM Ball: AISI 304 - Stem: brass CuZn40Pb2
FKM Ball and stem: AISI 304
FKM Ball: AISI 316 - Stem: AISI 304

Sizes: DN15÷150

Coating: RAL 5002 colour

PN Max 16 bar
Temp. FKM -10 +150 °C
Foratura/drilling:
PN6/10/16/ANSI150

The shut-off wafer butterfly valves in Series J9 are equipped with a centred disc and wafer type body, and are made of ductile iron or stainless steel, manufactured in accordance with severe product norms and in conformity to EN ISO 9001.
These valves are suitable for heating and conditioning
(HVAC), water treatment and water distribution, industrial applications, agricultural purposes for compressed air, gas, oils and hydrocarbons.

YES: for in line and end of line installation with frequent actuation; the integrated support, in accordance with ISO 5211, allows easy mounting of a wide range of actuators and drives.
They are suitable for choking and regulating the flow.
NO: for steam.

Accessories

• Extension for main water system connection
• Position indicator and padlocking for gear box
• Micro-switch for gear box
• Kit: micro-switches for ON/OFF position indicator

Actuators

• Double acting and single acting pneumatic actuators
• On request: micro-switches, position indicators
• Electric actuators
• Gear box
• Chain driven control

Body: ductile iron EN GJS 400 -15

Disc: EN GJS 400 nickel plated - Liner: EPDM
Disc: EN GJS 400 nickel plated - Liner: NBR
Disc: EN GJS 400 nickel plated - Liner: FKM
Disc: EN GJS 400 nickel plated - Liner: PTFE
Disc: AISI 316 - Liner: EPDM
Disc: AISI 316 - Liner: NBR
Disc: AISI 316 - Liner: FKM
Disc: AISI 316 - Liner: PTFE
Disc: aluminium/bronze- Liner: EPDM
Disc: aluminium/bronze- Liner: NBR
Disc: aluminium/bronze- Liner: FKM
Disc: aluminium/bronze- Liner: PTFE

For Gas

Disc: EN GJS 400 nickel plated - Liner: NBR (for Gas with yellow lever)
Disc: AISI 316 - Liner: NBR (for Gas with yellow lever)

For drinking water

Disc: AISI 316 - Liner: certificated rubber for drinking water

Sizes: DN25÷1200 DN300÷600 with Gear box

Coating: RAL 5002 colour

PN Max 16 bar
Temp. EPDM -10 +120 °C
Temp. NBR -10 +80 °C
Temp. FKM -10 +150 °C
Temp. PTFE -10 +120 °C
Drilling: PN6/10/16/ANSI150