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- Scheduled Maintenance Notice: This site will be unavailable due to scheduled maintenance from 7:00 2/3 to 6:00 (SGT) 3/3/2025. We apologize for the inconvenience.
- Notice of End of Sales for Economy Series Pneumatic Equipment Category. More information.
Soft Start Valve, MS4 Series (Part Numbers)
- On Sale Till 30/04/2025
- Soft-start Valves - Pneumatically Actuated/Solenoid Actuated
- Part number including of MS4-DL (Pneumatically Actuated) and MS4-DE (solenoid actuated)
- Housing material: Die-cast aluminum.
- Flow rate: 2,600 … 8,700 l/min
- Corrosion resistance class 2 according to Festo standard 940 070
- MS4-DL is Pneumatically actuated soft-start valve for slowly pressurizing and venting pneumatic installations (for use with on-off valves EM1 and EE)
- MS4-DE is Solenoid actuated soft-start valve for slowly pressurizing and venting pneumatic installations.
Pressure accumulator, MS4 Series
Features
The duration of the pressure build-up is adjusted using the restrictor at tached to the valve cap.
The output pressure p2 rises slowly in accordance with the restrictor setting.
Only the air flow from the restrictor is available when the solenoid valve is not actuated. The main seat is only opened by energising the solenoid valve.
When the solenoid valve is switched off, the main seat is closed and only the air flow from the flow control valve is available.
The solenoid valve should remain switched on in order to vent a system as this increases the flow rate from 2 and 1 and reduces the exhaust time.
-Solenoid actuated soft-start valve for slowly pressurising and venting pneumatic installations
-The drives advance slowly and reliably into the initial position
-Sudden and erratic movements are avoided
-With solenoid coil without plug socket
-Switch-through pressure can be precisely controlled using a solenoid valve
-Adjustable switching time delay
-Three voltage ranges can be selected
-Non-detenting and detenting manual override (variant 10V24: only non-detenting)
-Solenoid actuator can be repositioned by 180°
-Optional pressure sensor
-Optional device variant EX2 for use in potentially explosive areas in zones 2 and 22
Specifications
| Size | MS4 | MS6 |
|---|---|---|
| Pneumatic connection 1, 2 Female thread Connecting plate AG... Connecting plate AQ... | G1/8 or G1/4 G1/8, G1/4 or G3/8 NPT1/8, NPT1/4 or NPT3/8 | G1/4, G3/8 or G1/2 G1/4, G3/8, G1/2 or G3/4 NPT1/4, NPT3/8, NPT1/2 or NPT3/4 |
| Design | Piston poppet valve | |
| Type of mounting | Via accessories | |
| In-line installation | ||
| Assembly position | Any | |
| Pressure indicator | Via pressure sensor for displaying output pressure via LCD display and electrical output | |
| Via pressure sensor for displaying output pressure via operational status indicator and electrical output | ||
| Via pressure gauge for displaying output pressure | ||
| Via pressure gauge with red/green scale for displaying output pressure | ||
| G1/4 prepared | ||
| G1/8 prepared | - | |
| Valve function | 2/2-way valve | |
| Signal status display | Via accessories | |
| Type of reset | Mechanical spring | |
| Pilot control mode | Piloted | |
| Pilot air supply | Internal | |
| Direction of flow | Non-reversible | |
Electrical data
| Coil characteristics | V24 | 24 V DC: 1.5 W; perm. voltage fluctuations -25%/+10% |
|---|---|---|
| 10V24, 10V24P | 24 V DC: 1.8 W; perm. voltage fluctuations -15%/+10% | |
| V110 | 110 V AC: 50/60 Hz; pick-up power 3.0 VA; holding power 2.4 VA; perm. voltage fluctuations ±10% | |
| V230 | 230 V AC: 50/60 Hz; pick-up power 3.0 VA; holding power 2.4 VA; perm. voltage fluctuations -14%/+10% | |
| Electrical connection | V24, 10V24, V110, V230 | Plug, square design to EN 175301-803, type C |
| 10V24P | M12x1 to IEC 61076-2-101 | |
| Protection class solenoid coil | IP65 | |
| Duty cycle [%] | 100 | |
Flow rate characteristic values
| Size | MS4 | MS6 | |||
|---|---|---|---|---|---|
| Pneumatic connection | G1/8 | G1/4 | G1/4 | G3/8 | G1/2 |
| Standard nominal flow rate qnN [l/min] | |||||
| In main flow direction 1 > 2 | 1,000 | 2,000 | 2,700 | 5,050 | 6,450 |
| In relief direction 2 > 1 | 1,000 | 2,000 | 2,600 | 5,050 | 6,400 |
| C value [l/s*min] | |||||
| In main flow direction 1 > 2 | 4.6 | 9.6 | 11.22 | 21.05 | 28.97 |
| b value | |||||
| In main flow direction 1 > 2 | 0.5 | 0.45 | 0.54 | 0.48 | 0.39 |
Operating and environmental conditions
| Size | MS4 | MS6 | ||
|---|---|---|---|---|
| Supply voltage | V24/V110/V230 | 10V24/10V24P | V24/V110/V230 | 10V24/10V24P |
| Operating pressure [bar] | 4...14 (4...10) | 4...10 | 4...18 (4...10) | 4...10 |
| Operating medium | Compressed air in accordance with ISO 8573-1:2010 [7:4:4] | |||
| Inert gases | ||||
| Note on operating/pilot medium | Operation with lubricated medium possible (in which case lubricated operation will always be required) | |||
| Ambient temperature [°C] | -10...+60 (0...+50) | -10...+50 (0...+50) | -10...+60 (0...+50) | -10...+50 (0...+50) |
| Temperature of medium [°C] | -10...+60 (0...+50) | -10...+50 (0...+50) | -10...+60 (0...+50) | -10...+50 (0...+50) |
| Corrosion resistance class CRC | 2 | |||
| Food-safe | See supplementary material information (except solenoid valve) | |||
| UL certification | cULus recognized (OL) | |||
| KC marking | KC EMC | |||
| Part Number |
|---|
| MS4-DE-1/4-10V24 |
| MS4-DE-1/4-V110 |
| MS4-DE-1/4-V230 |
| MS4-DL-1/4 |
| MS4-DL-1/4-Z |
| MS4-DL-1/8 |
| Part Number | Standard Unit Price | Minimum order quantity | Volume Discount | Days to Ship | Actuation type | Standard nominal flow rate (l/min) | Max. Operating pressure (bar) | Max. Temperature of medium (°C) | Max. Ambient temperature (°C) | Pneumatic connection 1 | Pneumatic connection 2 | Degree of protection | C value (l/sbar) | b-value | Operating medium | Manufacturer part # | Weight (g) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
SGD 324.70 SGD 243.53 | 1 Piece(s) | Quote | Electrical | 2000 | 10 | 50 | 50 | G1/4 | G1/4 | IP65 | 9.6 | 0.45 | Compressed air as per ISO 8573-1:2010 [7:4:4] Inert gas | 542558 | 263 | ||
SGD 324.70 SGD 243.53 | 1 Piece(s) | Quote | Electrical | 2000 | 14 | 60 | 60 | G1/4 | G1/4 | IP65 | 9.6 | 0.45 | Compressed air as per ISO 8573-1:2010 [7:4:4] Inert gas | 529519 | 263 | ||
SGD 324.70 SGD 243.53 | 1 Piece(s) | Quote | Electrical | 2000 | 14 | 60 | 60 | G1/4 | G1/4 | IP65 | 9.6 | 0.45 | Compressed air as per ISO 8573-1:2010 [7:4:4] Inert gas | 529521 | 263 | ||
SGD 128.95 SGD 96.71 | 1 Piece(s) | Quote | Pneumatic | 2000 | 14 | 60 | 60 | G1/4 | G1/4 | - | 9.6 | 0.45 | Compressed air as per ISO 8573-1:2010 [7:4:4] Inert gas | 529531 | 213 | ||
SGD 128.95 SGD 96.71 | 1 Piece(s) | Quote | Pneumatic | 2000 | 14 | 60 | 60 | G1/4 | G1/4 | - | 9.6 | 0.45 | Compressed air as per ISO 8573-1:2010 [7:4:4], Inert gas | 529532 | 213 | ||
SGD 128.95 SGD 96.71 | 1 Piece(s) | Quote | Pneumatic | 1000 | 14 | 60 | 60 | G1/8 | G1/8 | - | 4.6 | 0.5 | Compressed air as per ISO 8573-1:2010 [7:4:4] Inert gas | 529533 | 213 |
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Basic Information
| Valve function | 2/2 | Housing material | Die-cast aluminum | Seals material | NBR |
|---|---|---|---|---|---|
| Reset method | Mechanical spring | Min. Operating pressure(bar) | 4 | Min. Temperature of medium(°C) | -10 |
| Min. Ambient temperature(°C) | -10 | Corrosion resistance class (CRC) | 2 - Moderate corrosion stress |
Specification/Dimensions
-
Actuation type
- Electrical
- Pneumatic
-
Standard nominal flow rate(l/min)
-
Max. Operating pressure(bar)
- 10
- 14
-
Max. Temperature of medium(°C)
- 50
- 60
-
Max. Ambient temperature(°C)
- 50
- 60
-
Pneumatic connection 1
- G1/4
- G1/8
-
Pneumatic connection 2
- G1/4
- G1/8
-
Degree of protection
- IP65
-
C value(l/sbar)
-
b-value
-
Operating medium
- Compressed air as per ISO 8573-1:2010 [7:4:4], Inert gas
-
Compressed air as per ISO 8573-1:2010 [7:4:4]
Inert gas
Specify Alterations
- The specifications and dimensions of some parts may not be fully covered. For exact details, refer to manufacturer catalogs .
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