HeatBloC® K31 DN 50 (2")

direct / unmixed

H

e

a

t

B

l

o

C

®

K

3

1

D

N

5

0

(

2

"

)

Technical data

HeatBloC® K31 DN 50 (2")

without pump - for pumps with flange DN 50/PN6 x 280 mm

51211

Application range

● Boiler charging

Recommended application range

● up to 250 kW

● 20 K up to 10800 l/h

Operating data

Max. operating pressure

Max. operating temperature

Kvs value

Differential pressure diagram

6 bar

110 °C

31.2

Dimensions

Nominal diameter

Connection generator

Connection consumer

Height

Installation length

Centre distance

Width

Materials

Valves and fittings

Gaskets

Insulation

DN 50 (2")

Flange DN 50 / PN 6

2" int. thread

660 mm

630 mm

180 mm

360 mm

Brass

EPDM

EPP

EEI*

< 0.18

< 0.21

< 0.23

< 0.20

with

Item no.

51211GH12

51211GL12

51211WM12

51211WY9

128

01/2024 • Printed in Germany

PAW GmbH & Co. KG • info@paw.eu • www.paw.eu

= with pump

Grundfos MAGNA3 50-120 F

Grundfos MAGNA1 50-120 F

Wilo Yonos MAXO plus 50/0.5-12

Wilo Yonos MAXO plus 50/0.5-9

= without pump

= with actuator

*EEI = Energy Efficiency Index