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Grundfos.bk Page 12 Wednesday, June 2, 2010 1:16 PM
9. Technical data
9.1 Valve body
Materials
Body:
Seat:
Stem:
O-ring:
Paddle:
Liquid
Max. water/
glycol mix:
Min. to max.
temp. range:
Max. static pressure
300 psi (20 bar)
15 psi (1 bar) steam
De-energized paddle position
Normally closed
12
Flow characteristics
Sweat
connect.
Brass
1/2 inch
Brass
3/4 inch
Stainless steel
EPDM
1 inch
EPDM
3/4 inch
50:50
33 °F to 240 °F
(1 °C to 115 °C)
Max.
Flow
close-off
coefficient
ΔP
3.5 Cv
30 psi
(3.0 Kv)
(207 kPa)
7.5 Cv
20 psi
(6.5 Kv)
(138 kPa)
7.5 Cv
20 psi
(6.5 Kv)
(138 kPa)
3.5 Cv
30 psi
(3.0 Kv)
(207 kPa)
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