PRODUCT DATA SHEET
Ramén Ball Sector Valve Type KS-25
DN 25 l Wafer l PN 40 l Stainless steel l PTFE Seat l Viton®
The Ramén Ball Sector Valve in DN 25 offers a versatile
and robust control valve for any industrial application. It is
available in four different executions and can be applied in
chemical water, fibre abrasive or any other process to control
small flows with very high control and rangeability.
The Ramén Ball Sector Valve is a solution suited for industrial applications where process parameters are a low flow
of liquid gas and steam needs to be controlled with high
accuracy.
Example of applications
Automation options
Dosing of chemicals
Pneumatic actuator SR (Spring Return)
Abrasive fluid control
or DA (Double Acting)
Industrial gases: Nitrogen (N2),
Digital / Electro pneumatic/
oxygen (O2), natural gas, air
Pneumatic positioner
Electrical actuator
Hydraulic actuator
DN 25 is a small control valve for liquids, gases and low
pressure steam
Technical specifications
Flangeless, wafertype
Design
DN 25
½”
Body
EN 1.4432
AISI 316L
Ball Sector
EN 1.4435
Nominal sizes
Material
EN 1.4435
Shafts
AISI 316L
Viton®
O-rings
AISI 316L+Cr*
Rulon®
Bearing
PN 40 (for flange PN 10/40 and ANSI 150/300/600)
Nominal pressure
-40° C - 170° C
Operating temperature
-40° F - 340° F
Actuator torque [Nm] Recommended**
Max.
20-50
100
Rangeability
300:1
Seat
1A
1B,1C,1E
Options
O-rings
Alloy steels
Seat
Carbon reinforced PTFE
Stellited Grade 6
EPDM, Nitril, Kalrez®, Viton GLT, EPDM 90
304, 254 SMO, Hastelloy, Duplex, Super Duplex
White PTFE, PEEK, FDA Approved
*Hard chromed ball sector
**The lower value of the torque range can be used for on-off applications for clean media at normal temperatures. The higher value of the torque
range shall be used for pneumatic actuators with positioner when high control accuracy is needed or for dirty/sticky media.
www.ramenvalves.com
Phone: +46 8 594 779 70 | [email protected]
Fredsforsstigen 22-24 | SE-168 67 Bromma | Sweden
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PRODUCT DATA SHEET
Ramén Ball Sector Valve Type KS-25
DN 25 l Wafer l PN 40 l Stainless steel l PTFE Seat l Viton®
J
I
H
D
G
A B
C
F
E
Dimensions
A [mm] B Bore
[mm]
20
C [mm] D [mm] E [mm]
See table
”Valve data”
35
80
F [mm] G [mm] H [mm] I [mm]
50
25
70
175
J [mm]
160
15
Weight
[kg]
Top mounting flange
EN-ISO 5211
3,2
F05/07, D14*
*D17 available on request
Valve data
Size
25/0,03
25/0,3
25/0,7
25/1,3
25/2,5
25/5
25/10
25/15
25/20
Kvs [m /h]
0,025
0,25
0,6
1,1
2,1
5
7,5
12,5
21
Cv
0,03
0,3
0,7
1,3
2,5
5,8
9
15
25
18-90°
18-90°
18-90°
18-90°
18-90°
30-90°
0-90°
25-90°
0-90°
15
19
3
Rotation angle
Bore [mm]
Triangle shaped groove
Triangle shaped
bore
Characteristic
Percentage characteristic
Modified equal
percentage
Equal
percentage
About Ramén Valves
Ramén manufactures the Ramén Ball Sector Valve in Sweden for throttling of liquids, gases, steam and slurries.
The Ramén Ball Sector Valve has been installed in thousands of applications worldwide since 1968. The industrial
design and the high performance throttling characteristics have been used within the pulp and paper, chemical
and mining industry among others. The construction details and manufacturing techniques of Ramén are based on
extensive and varied usage, often in harsh applications and environments.
For bigger valve sizes refer to ”Data Sheet Ramén Ball Sector Valve KS-1”(A-B-E)
www.ramenvalves.com
Phone: +46 8 594 779 70 | [email protected]
Fredsforsstigen 22-24 | SE-168 67 Bromma | Sweden
2