Description
3/4" Stainless Steel High Vacuum Solenoid Valve – ADS-20-V-G2-V
316 Stainless Steel Zero-Rated Vacuum Solenoid Valve – Full Vacuum to 10 Bar
The CS Fluid Power ADS-20-V-G2-V is a high-performance 3/4" 316 stainless steel vacuum solenoid valve designed for reliable control and isolation of industrial vacuum and compatible gas systems.
Using a 2/2 way normally closed, zero-rated assisted-lift design, the valve operates from high vacuum at -101 kPa (99.67% vacuum) through zero differential pressure and into positive pressure.
Featuring a 20 mm orifice with Cv 9.3, the ADS-20-V combines high flow capacity with corrosion-resistant 316 stainless steel construction, making it ideal for demanding industrial vacuum, semiconductor, packaging and automation applications.
Valve Function & Operation
Function: 2/2 way normally closed
Operation: Assisted lift, zero rated
The ADS-20-V remains closed when electrical power is removed. Energising the solenoid operator opens the valve and allows flow through the 20 mm internal orifice.
The zero-rated assisted-lift design enables operation without the minimum pressure differential normally required by conventional pilot-operated solenoid valves.
This provides reliable operation from high vacuum through zero differential pressure and into positive-pressure applications.
Ports & Connections
Port size: 3/4" BSPP
Optional:
✓ NPT thread
✓ Rc thread
Orifice: 20 mm
The 20 mm internal flow path provides excellent flow capacity for industrial vacuum systems while retaining reliable operation at zero pressure differential.
Vacuum & Pressure Performance
Vacuum rating: -101 kPa
Equivalent vacuum:
757.56 mmHg relative
99.67% vacuum
Maximum AC pressure: 10 Bar
Maximum DC pressure: 7 Bar
Cv flow factor: 9.3
The combination of high-vacuum capability and increased flow capacity makes the ADS-20-V particularly suitable for industrial vacuum equipment requiring a larger flow path.
Construction & Materials
Body: 316 stainless steel
Tube and internal parts: Stainless steel
Seals and gaskets: FKM / Viton
Moulded coil: Resin
Maximum media temperature: +120°C
Ambient temperature: -20°C to +60°C
Mounting position: Coil upright
Opening / closing time: 50 ms maximum
The 316 stainless steel body provides excellent corrosion resistance, making the ADS Series suitable for more demanding industrial environments and a wider range of compatible process media than the equivalent brass-bodied valve.
Seal & Media Compatibility
Standard seals: FKM / Viton
Suitable for:
✓ Vacuum
✓ Air
✓ Compatible gases
✓ Compatible process fluids
FKM provides good resistance to many industrial gases, oils and process fluids, while the 316 stainless steel construction provides enhanced corrosion resistance.
For specialist gases, aggressive chemicals, oxygen or high-purity applications, material compatibility and application requirements should be confirmed before ordering.
Coil & Electrical
Standard coil: WPG2
Duty cycle: 100% continuous
DC power: 18 Watts
AC power:
18.7 VA inrush
15.3 VA holding
Insulation: Class H, 180°C
Protection: IP67 with connector
Electrical connection: DIN43650A
The WPG2 industrial solenoid operator provides reliable continuous-duty operation and is supplied with an IP67 LED DIN connector.
Voltage Options
DC:
✓ 12VDC
✓ 24VDC
✓ 48VDC
✓ 110VDC
AC 50/60Hz:
✓ 24VAC
✓ 48VAC
✓ 110VAC
✓ 240VAC
✓ 380VAC
Voltage tolerance: -10% / +10%
ATEX / IECEx Coil Option
An optional Nass Magnet explosion-protected solenoid operator is available for hazardous-area applications.
✓ Ex mb IIC T4 Gb
✓ Ex mb tb IIIC T130°C Db
✓ Zone 1 gas applications
✓ Zone 21 dust applications
✓ ATEX Category 2G / 2D
✓ Gas Group IIC
✓ Dust Group IIIC
✓ IP65 protection
✓ Maximum media temperature +80°C
✓ Maximum operating pressure 3 Bar
ATEX Certificate: PTB 03 ATEX 2086 X
IECEx Certificate: IECEx PTB 05.0005X
ATEX Directive: 2014/34/EU
When fitted with the ATEX / IECEx operator, the operating range is vacuum through to +3 Bar.
The ATEX / IECEx certification relates to the explosion-protected solenoid operator rather than certification of the complete stainless steel valve assembly.
Optional Manual Override
A top-mounted lift-and-turn manual override is available for manual valve operation during commissioning, testing and maintenance.
Typical Applications
✓ Industrial vacuum systems
✓ Vacuum handling equipment
✓ Pick-and-place automation
✓ Semiconductor manufacturing
✓ Packaging machinery
✓ Laboratory vacuum systems
✓ Vacuum chambers
✓ Process automation
✓ OEM machinery
✓ Automated production equipment
High-Flow 316 Stainless Vacuum Control
The ADS-20-V-G2-V combines a 20 mm orifice and Cv 9.3 with zero-rated assisted-lift operation and corrosion-resistant 316 stainless steel construction.
Its ability to operate from -101 kPa high vacuum through zero differential pressure and into positive pressure makes it particularly useful where conventional pressure-assisted solenoid valves cannot operate reliably.
The stainless steel construction also makes the ADS-20-V a strong alternative to the equivalent brass AD Series valve for demanding environments and compatible process media.
Ordering Information
ADS-20-V-G2-V + Voltage
Specify:
✓ Required voltage
✓ BSPP, NPT or Rc thread
✓ Standard or ATEX/IECEx operator
✓ Manual override if required
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