Suitable for higher working temperatures and pressures
The connection of the control medium can rotate 360 degrees
Product Overview
Structure
The GEM ü514 series pneumatic metal two-way angle seat valve is equipped with a low maintenance aluminum metal pneumatic actuator. The valve stem seal adopts a self-adjusting design, which has a low maintenance rate and can maintain good sealing performance after long-term operation. The top of the valve stem seal is protected by a cleaning ring to prevent contamination and damage.
Advantages
Multiple valve body connection methods are available:
Internal thread, welded connection, clamp connection, flange connection
The angled design ensures good fluid characteristics:
Can adapt to various accessories
Please inquire separately about special connection methods, special seals, and special materials
Optional for food-grade safety requirements, in compliance with Regulation (EC) No 1935/200
(K code 1935) standard gland packing, suitable for vacuum environments up to 20 mbar (a)
Specifications
| Working medium | |
| Corrosive or inert gases and fluids that do not undergo any physical or chemical reactions with the valve body and sealing materials. | |
| Max. allowable working medium pressure | See table |
| Medium temperature | -10℃~180℃ |
| Max. allowable viscosity | 600mm2/s(cSt) |
| For specifications suitable for lower or higher temperatures and higher viscosity, please inquire separately. | |
| Control medium | ||
| Noble gas | ||
| Max. allowable control medium temperature | 60℃ | |
| Fill capacity | Pneumatic head | 0: 0.05dm³ |
| Pneumatic heads 1 and 4 | 0.125dm³ | |
| Pneumatic head 2 | 0.625dm³ | |
| Environmental conditions | |
| Ambient temperature | Maximum 60℃ |
Maximum allowable valve seat leakage rate/switching valve
| Valve seat | Standard | Test program | leakage rate | Test medium |
| PTFE | DIN EN 12266-1 | P12 | A | Air |
| Nominal inner diameter | Maximum working pressure (bar) Normally closed |
Control pressure (bar) Normally closed |
Kv value | ||||||
| DN | Pneumatic head 0 piston Φ50mm |
Pneumatic head 1 piston Φ70mm |
Pneumatic head 4 piston Φ70mm |
Pneumatic head 2 piston Φ70mm |
Pneumatic head 0 | Pneumatic head 1 | Pneumatic head 4 | Pneumatic head 2 | (m3/h) |
| 15 | 12.0 | 25.0 | 10 | - | 4.7-10 | 5.5-10 | The minimum control pressure is shown in the chart. Maximum control pressure: 7 bar |
- | 5.4 |
| 20 | 6.0 | 20.0 | 10 | 25 | 4.7-10 | 5.5-10 | 4.0-8 | 10.0 | |
| 25 | 2.5 | 10.0 | 10 | 25 | 4.7-10 | 5.5-10 | 4.0-8 | 15.2 | |
| 32 | - | 7.0 | 10 | 22 | - | 5.5-10 | 4.0-8 | 23.0 | |
| 40 | - | 4.5 | 10 | 12 | - | 5.5-10 | 4.0-8 | 41.0 | |
| 50 | - | 3.0 | 10 | 10 | - | 5.5-10 | 5.5-8 | 68.0 | |
| 65 | - | - | - | 7 | - | 5.5-10 | 5.5-8 | 95.0 | |
| 80 | - | - | - | 5 | - | 5.5-10 | 5.5-8 | 130.0 | |
Suitable for the working pressure of sealing material PTFE(code 5).
(V-value test reference standard DIN EN60534, test conditions: DIN ISO 228 standard internal thread valve body, control mode 1(normally closed), adapted to the maximum execution structure under this diameter, measured values for selection reference.)
| Nominal inner diameter | Max. working pressure (bar) Normally open/double acting |
Control pressure (bar) Normally open/double acting |
||
| DN | Pneumatic head 1 piston Φ70 mm |
Pneumatic head 2 piston Φ120 mm |
Pneumatic head 1 | Pneumatic head 2 |
| 15 | 25.0 | - | Maximum 5 bar | Maximum 7 bar Refer to the chart for numerical values |
| 20 | 25.0 | 25.0 | Maximum 7 bar Refer to the chart for numerical values Maximum 7 bar |
|
| 25 | 25.0 | 25.0 | ||
| 32 | 20.0 | 25.0 | ||
| 40 | 12.0 | 25.0 | ||
| 50 | 8.0 | 25.0 | ||
| 65 | - | 18.0 | ||
| 80 | - | 10.0 | ||
For maximum work pressure, attention should be paid to the temperature-pressure correlation.
All pressure markings are gauge pressure.
Temperature-pressure correlation of angle seat valve body
| Connection code | Material Code | Max. allowable working pressure(bar) at the corresponding temperature(°C)* | |||||
| RT | 100 | 150 | 200 | 250 | 300 | ||
| 1, 17, 37, 60, 3C, 3D | 37 | 25.0 | 23.8 | 21.4 | 18.9 | 17.5 | 16.1 |
| 0, 16, 17, 18, 37, 59, 60 | 34 | 25.0 | 24.5 | 22.4 | 20.3 | 18.2 | 16.1 |
| 8 (DN15-DN50) | 34 | 25.0 | 23.6 | 21.5 | 19.8 | 18.6 | 17.2 |
*The minimum operating temperature of the valve can reach-10CRT=room temperature. All pressure markings are gauge pressure.
Work pressure/control pressure characteristic curve
Actuator size/installaion size-valve with straight-through valve body (mm)
| Actuator size | ||||
| Pneumatic head | ΦB | M | A2 | G |
| 0 | 71 | M 16×1 | - | G 1/4 |
| 1+4 | 96 | M 16×1 | 85.5 | G 1/4 |
| 2 | 164 | M 22×1.5 | 123.0 | G 1/4 |
| Installation size/weight kg] | |||||||
| DN | Wrench opening degree SW1 |
Executor 0 | Executors 1 and 4 | Executors 2 | |||
| CT/LA | Weight | CT/LA | Weight | CT/LA | Weight | ||
| 15 | 36 | 153 | 0.9 | 164 | 1.4 | - | - |
| 20 | 41 | 163 | 1.1 | 174 | 1.6 | 241 | - |
| 25 | 46 | 163 | 1.3 | 174 | 1.8 | 241 | - |
| 32 | 55 | - | - | 182 | 2.4 | 249 | 4.6 |
| 40 | 60 | - | - | 187 | 2.7 | 254 | 5.5 |
| 50 | 75 | - | - | 195 | 3.4 | 262 | 6.4 |
| 65 | 75 | - | - | - | - | 275 | 8.5 |
| 80 | 75 | - | - | - | - | 292 | 9.6 |
Valve body size (mm)
| Welding connection, connection codes 0,16,17,18,55,37,59,60 Valve body material 1.4435 (code 34) |
||||||||||||||||
| Connection code | ||||||||||||||||
| DN | Material code 34 | 0 | 16 | 17 | 18 | 55/37 | 59 | 60 | ||||||||
| L | LB | Φd | S | Φd | S | Φd | S | Φd | S | Φd | S | Φd | S | Φd | S | |
| 15 | 100 | 33 | 18 | 1.5 | 18 | 1.0 | 19 | 1.5 | 20 | 2.0 | 12.70 | 1.2 | 12.70 | 1.65 | 21.3 | 1.6 |
| 20 | 108 | 33 | 22 | 1.5 | 22 | 1.0 | 23 | 1.5 | 24 | 2.0 | 19.05 | 1.2 | 19.05 | 1.65 | 26.9 | 1.6 |
| 25 | 112 | 32 | 28 | 1.5 | 28 | 1.0 | 29 | 1.5 | 30 | 2.0 | 25.0 | 1.2 | 25.40 | 1.65 | 33.7 | 2.0 |
| 32 | 137 | 39 | - | - | 34 | 1.0 | 35 | 1.5 | 36 | 2.0 | - | - | - | - | 42.4 | 2.0 |
| 40 | 146 | 40 | 40 | 1.5 | 40 | 1.0 | 41 | 1.5 | 42 | 2.0 | 38.0 | 1.2 | 38.10 | 1.65 | 48.3 | 2.0 |
| 50 | 160 | 38 | 52 | 1.5 | 52 | 1.0 | 53 | 1.5 | 54 | 2.0 | 51.0 | 1.2 | 50.80 | 1.65 | 60.3 | 2.0 |
| 65 | 290 | 96 | - | - | - | 70 | 2.0 | - | - | 63.5 | 1.6 | 63.50 | 1.65 | 76.1 | 2.0 | |
| 80 | 310 | 95 | - | - | - | 85 | 2.0 | - | - | 76.1 | 1.6 | 76.20 | 1.65 | 88.9 | 2.3 | |
| Internal thread DIN, connection code 1 Valve body material 1.4408 (code 37) |
||||||
| DN | L | LB | R | t | SW2 | |
| 15 | 65 | 16.5 | G1/2 | 15.0 | 27 | HEXAGON |
| 20 | 75 | 17.5 | G3/4 | 16.3 | 32 | HEXAGON |
| 25 | 90 | 24.0 | G1 | 19.1 | 41 | HEXAGON |
| 32 | 110 | 33.0 | G11/4 | 21.4 | 50 | STAR ANISE |
| 40 | 120 | 30.0 | G11/2 | 21.1 | 55 | STAR ANISE |
| 50 | 150 | 40.0 | G 2 | 25.7 | 70 | STAR ANISE |
| 65 | 190 | 46.0 | G 21/2 | 30.2 | 85 | STAR ANISE |
| 80 | 220 | 50.0 | G3 | 33.3 | 100 | STAR ANISE |
| Materials refer to the list | ||||||
| BS21 Rc, Connection code 3C Valve body material 1.4408 (code 37) |
||||||
| DN | L | LB | SW2 | Connection code | ||
| 3C | ||||||
| R | t | |||||
| 15 | 65 | 16.5 | 27 | HEXAGON | Rc 1/2 | 15.0 |
| 20 | 75 | 17.5 | 32 | HEXAGON | Rc 3/4 | 16.3 |
| 25 | 90 | 24.0 | 41 | HEXAGON | Rc 1 | 19.1 |
| 32 | 110 | 33.0 | 50 | STAR ANISE | Rc 11/4 | 21.4 |
| 40 | 120 | 30.0 | 55 | STAR ANISE | Rc 11/2 | 21.4 |
| 50 | 150 | 40.0 | 70 | STAR ANISE | Rc 2 | 25.7 |
| 65 | 190 | 46.0 | 85 | STAR ANISE | Rc 21/2 | 30.2 |
| 80 | 220 | 50.0 | 100 | STAR ANISE | Rc 3 | 33.3 |
| Materials refer to the list | ||||||
| Flange, connection code 8 Valve body material 1.4435 (code 34) |
||||||
| DN | FTF | LB | Connection code 8 | |||
| ΦD | ΦL | Φk | Number of bolts | |||
| 15 | 210 | 58 | 95 | 14 | 65 | 4 |
| 20 | 280 | 61 | 105 | 14 | 75 | 4 |
| 25 | 280 | 60 | 115 | 14 | 85 | 4 |
| 32 | 310 | 67 | 140 | 18 | 100 | 4 |
| 40 | 320 | 68 | 150 | 18 | 110 | 4 |
| 50 | 330 | 67 | 165 | 18 | 125 | 4 |
| 65 | 380 | 126 | 185 | 18 | 145 | 4 |
| 80 | 380 | 130 | 200 | 18 | 160 | 8 |
| Materials refer to the list | ||||||
GEM ü 514 Metal Valve BodyList
| Take over | |||||||
| Connection code | 0 | 16 | 17 | 18 | 55/37 | 59 | 60 |
| Material Code | 34 | 34 | 34 | 34 | 34 | 34 | 34 |
| DN 15 | X | X | X | X | X | X | X |
| DN 20 | X | X | X | X | X | X | X |
| DN 25 | X | X | X | X | X | X | X |
| DN 32 | X | X | X | X | X | - | X |
| DN 40 | X | X | X | X | X | X | X |
| DN 50 | X | X | X | X | X | X | X |
| DN 65 | - | - | X | - | X | X | X |
| DN 80 | - | - | X | - | X | X | X |
| Threaded connection | Flange | ||
| Connection code | 1 | 3C | 8 |
| Material Code | 37 | 37 | 34 |
| Valve body structure | Direct valve body | ||
| DN 15 | X | X | X |
| DN 20 | X | X | X |
| DN 25 | X | X | X |
| DN 32 | X | X | X |
| DN 40 | X | X | X |
| DN 50 | X | X | X |
| DN 65 | X | X | X |
| DN 80 | X | X | X |
Application & Case
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