Solenoid Valve,
Metal
Construction
The GEMÜ 8258 2/2-way servo assisted solenoid valve has a brass or
stainless steel valve body. The detachable solenoid coil is encapsulated in
glass reinforced epoxy resin. All medium wetted parts are made of stainless
steel, NBR, PVDF or brass.
The electrical connection is made via a plug to DIN EN 175301-803 form
A. The coil has isolation class F as standard. The valve is suitable for inert
media such as air, water and oil.
Advantages
•
•
•
•
•
•
•
•
•
•
•
•
Low power consumption
Excellent flow capability
Soft closing action
Low minimum pressure differential
Simple compact design
Simple coil replacement without tools (Click-on®)
Optional manual override
Explosion protected solenoids acc. to ATEX available as an option
Type examination up to DN 25 to DIN EN 60730-2-8
Optional mounting bracket available (not pre-assembled)
NPT thread available
CSA approvals available (not with special function ATEX)
Sectional drawing GEMÜ 8258
P
P = Inlet, A = Outlet
A
8258
Technical data
Working medium
Inert gaseous or liquid media which have no negative
impact on the physical and chemical properties of the body
and seal material.
Max. perm. viscosity of working medium
25 mm²/s (cSt)
Note: When used with contaminated media we recommend
installing a strainer in front of the valve (on request)
Perm. temperature of working medium
-10° to +90° C
Higher temperatures on request
AC operation:
Pull in
DN 8 - 50 DN 8 - 25 DN 32 - 50 Hold in
DN 8 - 50 DN 8 - 25 DN 32 - 50 DC operation:
Pull in
DN 8 - 50 DN 8 - 25 DN 32 - 50 Hold in
DN 8 - 50 DN 8 - 25 DN 32 - 50 Control function 1
Control function 2
Control function 2
15 VA
15 VA
45 VA
Control function 1
Control function 2
Control function 2
12 VA
12 VA
35 VA
Control function 1
Control function 2
Control function 2
8W
8W
18 W
Control function 1
Control function 2
Control function 2
7W
7W
17 W
Protection class
Ambient temperature
IP 65 (with connector plug)
-10° to +50° C
Permissible voltage tolerance
Mounting position
±10 % to VDE 0580
Optional, preferably coil vertically upwards
Approval
Rating
KTW (≤ DN 25, seal material EPDM)
CSA approval
Continuously rated
Nominal size
Power consumption
Connection
Threaded sockets
[mm]
DIN ISO 228
Code 1
NPT
Code 31
8
10
15
20
25
32
40
50
G 1/4
G 3/8
G 1/2
G 3/4
G1
G 1 1/4
G 1 1/2
G2
1/4” NPT
3/8” NPT
1/2” NPT
3/4” NPT
1” NPT
1 1/4” NPT
1 1/2” NPT
2” NPT
Operating pressure
Control function
Normally closed
Code 1
0.1 / 0.3** - 16
0.1 - 16
0.1 - 16
0.1 - 16
0.1 - 16
0.1 - 10
0.1 - 10
0.1 - 10
[bar]
Control function
Normally open
Code 2
0.1 / 0.3** - 16
0.1 - 16
0.1 - 16
0.1 - 16
0.1 - 16
0.1 - 16
0.1 - 16
0.1 - 16
Kv value
Weight
[m3/h]
[kg]
1.9
3.0
3.8
6.1
9.5
23.0
25.0
41.0
0.47
0.45
0.50
0.65
0.95
2.73
2.53
3.85
* The operating pressure applies to free discharge conditions. In closed systems Δp between the inlet and outlet must be at least 0.1 bar.
DN 32-50: Higher operating pressures on request. ** Seal material EPDM
Wiring note
Special wiring on request. When using electronic switches and additional wiring, carefully design out any potential
residual currents upon installation.
Order data for mounting bracket (incl. fixing screws)
Size
DN 8 - 15
DN 20
DN 25
DN 32 - 40
DN 50
8258
Part number 8258 000 P 12
8258 000 P 20
8258 000 P 25
8258 000 P 40
8258 000 P 50
2
Order number
88293212
88293213
88293214
88293215
88293216
Order data
Body configuration
Code
ConnectionCode
1
Threaded sockets NPT
31
Valve body material CW617N, brass12
37
Seal material
Code
Special functionCode
ATEX marking:
II 2 G EEx m II T4
II 2 D T130°C
Code
NBR (Perbunan N)
Mains frequency
24
110
230
24
50/60 Hz
50/60
DCDC
Code
1.4408, stainless steel
Code
24 V AC
110 V AC
230 V AC
24 V DC
2/2-wayD
Threaded sockets DIN ISO 228
Supply voltage
2
Other versions according to ATEX or US regulations on request
FPM4
X
EPDM14
Control function
Normally closed
2
S
Normally closed, with manual override
Type
Nominal size
Body configuration (code)
Connection (code)
Valve body material (code)
Seal material (code)
Control function (code)
Supply voltage (code)
Mains frequency (code)
Special function (code)
AC
DC
1
Normally open
Order example
Available voltages / Frequency
Code
8258
8258
25
25
D
1
D
1
24 V AC
110 V AC
230 V AC
24 V DC
12
12
50/60 Hz
50/60 Hz
50/60 Hz
2
2
1
1
230
230
50/60
50/60
X
X
Spare parts
1400
105*
103*
*103 Diaphragm
*105 Compression spring
400 Solenoid
*702 O-ring
*704 Compression spring
*705 Armature
706 Spring clip
1400 Connector plug
400 706
705*
704*
702*
All parts marked with * are included in the wearing parts kit.
When ordering spare parts, please indicate complete
valve order number.
3
8258
L
Body dimensions GEMÜ 8258
DN
L
8
10
15
20
25
32
40
50
60
60
67
80
95
132
132
160
Control function 1
normally closed
H
78.5
78.5
81.0
88.0
97.5
124.5
124.5
142.5
H1
67.0
67.0
67.0
71.5
77.0
95.5
95.5
108.0
Control function 2
normally open
H
78.5
78.5
81.0
88.0
97.5
142
142
160
H1
67.0
67.0
67.0
71.5
77.0
113.0
113.0
125.5
[mm]
Threaded sockets DIN ISO
Connection code 1
R
T
G 1/4
12
G 3/8
12
G 1/2
14
G 3/4
16
G1
18
G 1 1/4
20
G 1 1/2
22
G2
24
Threaded sockets NPT
Connection code 31
R
T
1/4” NPT
10.0
3/8” NPT
10.5
1/2” NPT
13.5
3/4” NPT
14.0
1” NPT
17.0
1 1/4” NPT
17.0
1 1/2” NPT
17.0
2” NPT
17.5
For other solenoid valves, accessories and other products, please see our Product Range catalogue and Price List.
Contact GEMÜ.
VALVES, MEASUREMENT
AND CONTROL SYSTEMS
GEMÜ Gebr. Müller · Apparatebau GmbH & Co. KG · Fritz-Müller-Str. 6-8 · D-74653 Ingelfingen-Criesbach · Tel. +49 (0) 7940/123-0 · Telefax +49 (0) 7940/123-224
[email protected] · www.gemu-group.com
Subject to alteration · 02/2017 · 88210801
T
Should there be any doubts or misunderstandings, the German
version of this data sheet is the authoritative document!
R
H
H1
Technical data sheet
Dimensions - GEMÜ 8258