EURO 20 Type 21 motorizable and motorized

EURO 20 Type 21 motorizable and motorized

RANGE / MARK ®
Valves ® EURO20
CHOICE OF PRODUCT
Valves type 21
Motorized type
Motorizable type
Flanged Valves
PRODUCT FAMILY
VALVES
VALVES
Gate valve
Gate valve
Main features

The EURO 20 type 21:

  • is composed of flanges with standard face to face dimensions
  • type NG : DN65-300

Material and coating

Item

Designation

Material

Coating

1

Yoke - Flange

Ductile iron

Epoxy 250 microns

2

Adaptor

Carbon steel

Epoxy 250 microns

3

4 bolts CHC M10/30 - 4 washers M10/2

Steel

Zinc plated

4

Clockwise operating stem

Stainless steel type X20Cr13 according to EN10088-3

5

Key

Steel

6

4 bolts H 10/45 - 8 washers M10/2

Steel

Zinc plated

Detail of key dimensions of the operating stem (CC)

DNSquare SdBKEKey
mmmmmmmmmmmm
6517.320 f 828416.56 x 6 x 28
8017.320 f 828416.56 x 6 x 28
10019.322 f 836418.56 x 6 x 36
12519.322 f 836418.56 x 6 x 36
15019.322 f 836418.56 x 6 x 36
20024.328 f 845520.08 x 7 x 45
25027.332 f 850527.010 x 8 x 50
30027.332 f 850527.010 x 8 x 50
35027.332 f 850527.010 x 8 x 50
40027.333 f 856728.010 x 8 x 56

Choice of the servomotor: values in Nm

DNNominal torqueSetting the torque switch Valve closing
mmNmInitial torque in factoryMaxi torque

65

40

5060

80

40

5060
1006080100
1256080100
1507095120

200

170

200

250

250

200

250

300

300

250

300

400

350

250

300

400

400

250

300

400

The nominal torque of the motor must be equal or greater than the maximum setting of the torque switch.

Closing the valve: motor stops through torque switch. Limit switch on security.

Opening the valve: motor stops through limit switch. Torque switch on security.

Assembly of the motor

1) Put the 4 bolts H

2) Assembly the adaptor on the motor with the 4 CHC bolts

3) Assembly the motor/adaptor on top of the operating stem of the valve.

4) Tighten the bolts.

Solutions