Description
PTFE Chemical Solenoid Valve for Acids, Alkalis & Corrosive Fluids – Shako PE220 / PE220N Series
A high-performance PTFE chemical solenoid valve designed for controlling strong acids, alkalis and aggressive corrosive fluids in chemical dosing and process applications. The PE220 and PE220N Series feature a PTFE-lined wetted path with an isolating diaphragm design, providing excellent chemical resistance and long service life in demanding environments.
Suitable for chemical dosing systems, laboratory equipment, water treatment plants and industrial process applications where conventional brass or stainless steel valves are unsuitable.
Valve Function & Operation
Function: 2/2 way solenoid valve
Models:
PE220 Normally Closed (NC)
PE220N Normally Open (NO)
Operation: Assisted lift with isolating diaphragm
Port sizes:
1/4" BSP
3/8" BSP
1/2" BSP
Optional threads: NPT
Pressure & Flow
Operating pressure:
0 to 3 Bar
Tested to 4.5 Bar
Optional low-pressure version:
0.1 to 0.5 Bar available on request
Orifice size:
5.0 mm
Construction & Materials
Body: PTFE
External metal components: 316 Stainless Steel
Seal material:
PTFE encapsulated NBR
Isolation diaphragm design protects the coil system from aggressive media.
Media Compatibility
Suitable for:
Hydrochloric Acid (HCl)
Sulphuric Acid (H₂SO₄)
Bromine solutions
Strong acids
Alkalis
Chemical dosing fluids
Corrosive liquids compatible with PTFE
Fluids under 50 CST viscosity
Not suitable for vacuum or suction applications.
Temperature Limits
Media temperature:
-10°C to +90°C
Ambient temperature:
-10°C to +60°C
Coil & Electrical
Standard coil:
18.5 Watt Nass Magnet coil
DIN 43650A connector
Class H insulation
CE approved
IP65 protection
100% duty rated
Protection rating:
IP65 with connector fitted (included)
DC versions supplied with rectified connector.
Voltage Options
24V, 110V and 220V
Hazardous Area Option
ATEX Ex mb IIC T4 Gb
Temperature class:
T4 (T130°C)
Protection:
Ex mb IIC T4 Gb
Ex mb tb IIIC T130°C Db
Voltage:
24V DC only (Pressure 0.1 to 1 Bar)
Benefits
Excellent resistance to strong acids and alkalis
PTFE wetted materials throughout
Isolating diaphragm construction
Available normally closed or normally open
Suitable for chemical dosing applications
Long service life in corrosive environments
Reliable continuous-duty operation
Free UK delivery available
Typical Applications
Chemical dosing systems
Acid and alkali transfer
Water treatment plants
Laboratory equipment
Process control systems
Industrial chemical handling
Corrosive fluid control
OEM chemical equipment
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