Multi-Port Globe Valve,

Metal

Construction
The GEMÜ 352/354 pneumatically operated 3/2-way valve has a robust
low maintenance plastic piston actuator.
GEMÜ 352 is flanged, GEMÜ 354 has threaded sockets. The connection
for the control medium can be rotated through 360°. The double sided
valve plug is connected to the actuator via a valve spindle. The valve
spindle is sealed by a self-adjusting gland packing providing low
maintenance and reliable valve spindle sealing even after a long service
life. A wiper ring fitted in front of the gland packing protects it against
contamination and damage.

Features
• Suitable for inert liquid and gaseous media
• Control medium: inert gases
• Suitable for high working medium temperatures
• With GEMÜ 352 and GEMÜ 354 valves control processes which
normally require two separate valves can be combined, for example:
mixing, separating, aerating and de-aerating.
• Versions according to ATEX on request

Advantages
• Extensive range of accessories

GEMÜ 352 GEMÜ 354

352, 354
 Technical data

Working medium Control medium

Inert gaseous and liquid media which have no negative Inert gaseous media
impact on the physical and chemical properties of the body
and seal material. Control pressure see table below

Permissible pressure of working medium: Max. perm. temperature of control medium 60° C
see table below Filling volume Actuator 1 0.125 dm³
Media temperature -10° to 180° C Actuator 2 0.625 dm³

Ambient conditions
Ambient temperature max. 60° C

Maximum permissible seat leakage rate

Seat seal Standard Test procedure Leakage rate Test medium
PTFE DIN EN 12266-1 P12 A Air

Control function 1 Control function 2

352 Maximum operating Maximum operating
Control pressure Control pressure
pressure pressure
DN B - AB Actuator 1 Actuator 2 A - AB Actuator 1 Actuator 2
A - AB B - AB See operating pressure/
Actua- Actua- See operating pressure/ Actua- Actua-
control pressure
tor 1 tor 2 control pressure diagram tor 1 tor 2
diagram
15 16.0 - 5.5 - 7.0 - 16.0 - 3.0 - 7.0 -
20 16.0 - 5.5 - 7.0 - 11.7 - 3.0 - 7.0 -
25 10.0 - See 5.5 - 7.0 - 7.5 - See 3.0 - 7.0 -
32 6.0 16.0 operating 5.5 - 7.0 4.0 - 7.0 - 16.0 operating - 3.0 - 7.0
pressure/ pressure/
40 4.5 14.0 5.5 - 7.0 4.0 - 7.0 - 11.1 - 3.0 - 7.0
control control
50 2.5 10.0 pressure 5.5 - 7.0 4.0 - 7.0 - 7.2 pressure - 3.0 - 7.0
65 - 7.0 diagram - 5.5 - 7.0 - 4.2 diagram - 3.0 - 7.0
80 - 4.0 - 5.0 - 7.0 - 2.6 - 3.0 - 7.0
100 - 2.0 - 5.0 - 7.0 - - - -

Control function 1 Control function 2

354 Maximum operating Maximum operating
Control pressure Control pressure
pressure pressure
P-A Actuator 1 Actuator 2 R-A Actuator 1 Actuator 2
DN R-A P-A See operating pressure/
Actua- Actua- See operating pressure/ Actua- Actua-
control pressure
tor 1 tor 2 control pressure diagram tor 1 tor 2
diagram
15 16.0 - 5.5 - 7.0 - 16.0 - 3.0 - 7.0 -
20 16.0 - See 5.5 - 7.0 - 13.7 - See 3.0 - 7.0 -
operating operating
25 10.0 - pressure/ 5.5 - 7.0 - 9.2 - pressure/ 3.0 - 7.0 -
32 6.0 16.0 control 5.5 - 7.0 4.0 - 7.0 - 11.2 control - 3.0 - 7.0
pressure pressure
40 4.5 14.0 diagram 5.5 - 7.0 4.0 - 7.0 - 7.1 diagram - 3.0 - 7.0
50 2.5 10.0 5.5 - 7.0 4.0 - 7.0 - - - -

352, 354 2
 GEMÜ 352 GEMÜ 354
Kv values [m³/h] Weight [kg] Kv values [m³/h] Weight [kg]
DN B - AB AB - A Actuator 1 Actuator 2 P-A A-R Actuator 1 Actuator 2
15 6.0 4.2 4.4 - 3.6 2.5 1.7 -
20 12.0 7.1 5.8 - 5.5 3.3 1.8 -
25 18.5 12.7 6.7 - 10.6 7.3 2.1 -
32 26.0 15.0 10.4 13.3 18.0 10.4 3.2 6.1
40 40.0 27.0 11.5 14.5 31.0 20.9 3.7 6.7
50 60.0 43.0 15.3 18.4 47.0 33.7 4.7 7.9
65 104.0 68.0 - 25.5 - - - -
80 145.0 96.0 - 32.0 - - - -
100 220.0 144.0 - 44.0 - - - -
Kv values determined acc. to DIN EN 60534 standard, valve body material cast iron EN-GJL-250 with connection flange EN 1092, valve
body material cast bronze with threaded socket connection DIN ISO 228. The Kv value data refers to control function 1 (NC) and the largest
actuator for each nominal size. The Kv values for other product configurations (e.g. other connection types or body materials) may differ.

Pressure / temperature correlation for globe valve bodies

Connection Material Max. allowable operating pressures in bar at temperature in °C *
code code RT 100 150 200
1 9 16.0 16.0 16.0 13.5
8 37 16.0 16.0 14.5 13.4
11 37 40.0 40.0 36.3 33.7
39 37 19.0 16.0 14.8 13.6
* The valves can be used down to -10 °C    RT = room temperature    All pressures are gauge pressures.

Functions

GEMÜ 352 Distribution GEMÜ 354 Distribution GEMÜ 352 Mixing GEMÜ 354 Mixing

AB A AB A
A R A R

P P
A-R R-A
A-P P-A
B B

3
352, 354
 Technical data

Operating pressure / Control pressure characteristics

352 C.f. 1 / Actuator size 1 (flow direction A - AB)

7,5

7
Control pressure [bar]

DN 20
6,5
DN 25
DN 32
6
DN 40
DN 50
5,5

5
0 2 4 6 8 10 12 14 16

Operating pressure [bar]

DN 15: a control pressure of 5.5 bar is required for an operating pressure up to 16 bar.

352 C.f. 1 / Actuator size 2 (flow direction A - AB)

7,5

7
Control pressure [bar]

6,5 DN 25
DN 32
6
DN 40
5,5
DN 50
5 DN 65
DN 80
4,5
DN 100
4

3,5
0 2 4 6 8 10 12 14 16

Operating pressure [bar]

DN 15: a control pressure of 5.5 bar is required for an operating pressure up to 16 bar.

352 C.f. 2 / Actuator size 1 (flow direction B - AB)

7,5

6,5
Control pressure [bar]

5,5
DN 15
5
DN 20
4,5
DN 25
4

3,5

2,5
0 2 4 6 8 10 12 14 16

Operating pressure [bar]

DN 15: a control pressure of 5.5 bar is required for an operating pressure up to 16 bar.

352, 354 4
 Technical data

Operating pressure / Control pressure characteristics

352 C.f. 2 / Actuator size 2 (flow direction B - AB)

7,5

6,5

Control pressure [bar]

6

5,5 DN 40

5 DN 50

4,5 DN 65
DN 80
4

3,5

2,5
0 2 4 6 8 10 12 14 16

Operating pressure [bar]

DN 15: a control pressure of 5.5 bar is required for an operating pressure up to 16 bar.

354 C.f. 1 / Actuator size 1 (flow direction R - A)

7,5

7
Control pressure [bar]

DN 20
6,5
DN 25
DN 32
6
DN 40
DN 50
5,5

5
0 2 4 6 8 10 12 14 16

Operating pressure [bar]

DN 15: a control pressure of 5.5 bar is required for an operating pressure up to 16 bar.

354 C.f. 1 / Actuator size 2 (flow direction R - A)

7,5

7
Control pressure [bar]

6,5

6
DN 32
5,5
DN 40
5 DN 50

4,5

3,5
0 2 4 6 8 10 12 14 16

Operating pressure [bar]

DN 15: a control pressure of 5.5 bar is required for an operating pressure up to 16 bar.

5
352, 354
 Technical data

Operating pressure / Control pressure characteristics

354 C.f. 2 / Actuator size 1 (flow direction P - A)

7,5

6,5
Control pressure [bar]

5,5
DN 15
5
DN 20
4,5
DN 25
4

3,5

2,5
0 2 4 6 8 10 12 14 16

Operating pressure [bar]

DN 15: a control pressure of 5.5 bar is required for an operating pressure up to 16 bar.

354 C.f. 2 / Actuator size 2 (flow direction P - A)

7,5

6,5
Control pressure [bar]

5,5

5 DN 32

4,5 DN 40

3,5

2,5
0 2 4 6 8 10 12 14 16

Operating pressure [bar]

DN 15: a control pressure of 5.5 bar is required for an operating pressure up to 16 bar.

352, 354 6
 Order data

Body configuration Code Seat seal Code

Multi-port M PTFE 5
PTFE, glass fibre reinforced 5G

Connection type Code

Threaded socket DIN ISO 228 (GEMÜ 354) 1 Control function Code
Flanges EN 1092 PN 16 / / form B, Normally closed (NC) 1
length EN 558, series 1,
ISO 5752, basic series 1 (GEMÜ 352) 8 Other control functions on request

Flanges EN 1092 / PN40 / form B,

length EN 558, series 1
ISO 5752, basic series 1 (GEMÜ 352) 11
Actuator size Code
Flanges ANSI Class 150 RF,
face-to-face dimension FTF EN 558 series 1, Actuator 1 piston ø 70 mm 1
ISO 5752, basic series 1 39
Actuator 2 piston ø 120 mm 2

Valve body material Code Note

GEMÜ 352: 1.4408, investment casting 37
Other designs on request.
GEMÜ 354: (Rg 5) CC499K, cast bronze 9

Order example 352 20 M 11 37 5 1 1

Type 352
Nominal size 20
Body configuration (code) M
Connection type (code) 11
Valve body material (code) 37
Seat seal (code) 5
Control function (code) 1
Actuator size (code) 1

7
352, 354
 Dimensions - GEMÜ 352 [mm]

B
Actuator dimensions M
øB M A2 G
Actuator size 1 96 M16 x 1 86 G 1/4
Actuator size 2 168 M22 x 1.5 149 G 1/4

G*
A2
SW 1

CT

G
C
L

CT1
A

d1

D
k
AB
B

H2
Connection only for
control functions 2 and 3

FTF

Body dimensions / Installation dimensions

Flange - DIN EN 1092, connection code 8, 11

Valve body material: 1.4408 (code 37)
Actuator 1 Actuator 2
Number
DN FTF øD øk øL of bolts SW1 ød1 C H2 CT CT1 CT CT1
15 130 95 65 14 4 41 45 16 97 210 104 - -
20 150 105 75 14 4 41 58 18 112 215 109 - -
25 160 115 85 14 4 41 68 18 118 216 110 - -
32 180 140 100 18 4 41 78 18 143 226 120 321 145
40 200 150 110 18 4 41 88 18 147 235 129 330 154
50 230 165 125 18 4 41 102 20 167 242 136 337 161
65 290 185 145 18 4 55 122 20 183 - - 349 173
80 310 200 160 18 8 55 138 22 204 - - 361 185
100 350 220 180 18 8 55 158 24 236 - - 375 199

Flange - ANSI Class 125/150 RF, connection code 39

Valve body material: 1.4408 (code 37)
Actuator 1 Actuator 2
Number
DN FTF øD øk øL of bolts SW1 ød1 C H2 CT CT1 CT CT1
15 130 90 60.3 15.9 4 41 34.9 16 97 210 104 - -
20 150 100 69.9 15.9 4 41 42.9 18 112 215 109 - -
25 160 110 79.4 15.9 4 41 50.8 18 118 216 110 - -
32 180 115 88.9 15.9 4 41 63.5 18 143 226 120 321 145
40 200 125 98.4 15.9 4 41 73.0 18 147 235 129 330 154
50 230 150 120.7 19.0 4 41 92.1 20 167 242 136 337 161
65 290 180 139.7 19.0 4 55 104.6 23 183 - - 349 173
80 310 190 152.4 19.0 4 55 127.0 24 204 - - 361 185
100 350 230 190.5 19.0 8 55 157.2 24 236 - - 375 199

352, 354 8
 Dimensions - GEMÜ 354 [mm]

Actuator dimensions B

øB M A2 G M
Actuator size 1 96 M16 x 1 86 G 1/4
Actuator size 2 168 M22 x 1.5 149 G 1/4

G*
A2
CT

G
SW 1

CT1
A R

R
P

H2
SW 2

R
*Connection only for control
functions 2 and 3
L

Body dimensions / Installation dimensions

Threaded socket, connection code 1

Valve body material: Cast bronze (code 9)
Actuator 1 Actuator 1
DN R L SW1 SW2 H2 CT CT1 CT CT1
15 G 1/2 75 36 27 41 203 97 - -
20 G 3/4 87 36 32 46 207 101 - -
25 G1 107 41 41 47 207 101 - -
32 G 1 1/4 123 55 50 66 211 105 306 130
40 G 1 1/2 147 55 58 68 211 105 306 130
50 G2 171 55 70 74 215 109 310 134

9
352, 354
 Overview of valve bodies - GEMÜ 352, 354
Connection code 1 (GEMÜ 354) 8 (GEMÜ 352) 11 (GEMÜ 352) 39 (GEMÜ 352)
Material code 9 37 37 37
DN 15 X - X X
DN 20 X - X X

All rights including copyright and industrial

property rights are expressly reserved.
DN 25 X - X X
DN 32 X - X X
DN 40 X - X X
DN 50 X - X X
DN 65 - X - -
DN 80 - X - -
DN 100 - X - -

Other multi-port valves

Should there be any doubts or misunderstandings, the German

GEMÜ 312 / 314 GEMÜ 343 version of this data sheet is the authoritative document!
Subject to alteration · 10/2020 · 88310469

For further globe valves, accessories and other products, please see our Product Range catalogue and Price List.
Contact GEMÜ.

VALVES, MEASUREMENT
AND CONTROL SYSTEMS

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info@gemue.de · www.gemu-group.com