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