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253 2/2-Way Solenoid Valve
Brand: Burkert Fluid Control SystemsType 253 is a 2/2 normally-closed plunger-type solenoid valve. When energized, the solenoid armature is pulled-in against a spring and the valve opens.
As a standard feature, the valve seat is made of stainless steel in order to avoid erosion. The solenoid epoxy encapsulation efficiently dissipates the heat generated by the coil.
Features- Normally closed
- Body material: Brass
- Compact design
- Fluid temperatures 0° to 180° C (0° to 356° F)
- Coil replacement does not require fluid to be isolated
Specifications
Ambient Temperature Range
- Maximum
Applications
- Heating
- High Temperatures, Such as Hot Water, Steam, Hot Air, Thermal Oils
- Impregnating
- Neutral Gases & Liquids, Pneumatic Control
- Sterilizing
BSP Connection
- G 1/4” Female - Valve
Consumption
- Power Consumption (AC): 14 VA (Hold) - Actuator
- Power Consumption (AC): 21 VA (Inrush) - Actuator
- Power Consumption (DC): 8 W (AC Hold) - Actuator
Cycling Rate
- Approximately 1,000 cycles/minute - Actuator
Duty Cycle
- 100 % Continuously Operated - Actuator
Electrical Connectors
- Cable Plug for 7 mm Ø Cable, Moulded-in, Temperature Resistant Cable
Electrical Contacts
- Normally Closed
Enclosure, Body Material
- Brass
Environmental Protection
- Cable Plug or Cable IP65 - Actuator
Flow Rate
- Air: 140 to 240 QNn (L/minute)
- Water: 0.120 to 0.230 Kv (m³/hour)
Materials of Construction
- Valve Internals: 316Ti Stainless Steel, 1.4542
- Valve Internals: 430FR Stainless Steel, 1.4105
Mounting Position
- Preferably with Solenoid System Upright
NPT Connection
- 1/4” NPT
Operating Voltages
- 24-240 V / 50 Hz - Actuator
Orifice Size
- 0.07” to 0.11” (2 to 3 mm)
Pressure Range
- AC, DC - psi: 0 to 90 (kPa: 0 to 600, bar: 0 to 6)
Process Temperature
- 0° to 180° C (32° to 356° F)
Response Time
- Closing: 30 milliseconds - Valve
- Opening: 20 milliseconds - Valve
Seat / Seal Material
- PTFE (Fluids Handled: Hot Water, Steam Alkaline Washing & Bleaching Lyes, Hot Oils, Carbon Hydroxide) - Valve
- Seat: 303 Stainless Steel (1.4305 (DN 2))
- Seat: 440B Stainless Steel (1.4112 (DN 3))
Solenoid Type
- 2/2-Way
Temperature Range
- PTFE: -40° to 180° C (-40° to 356° F) - Valve
Tolerance
- Voltage Tolerance: ± 10 % - Actuator
Viscosity
- Maximum
- Neutral gases and liquids, pneumatic control
- High temperatures, such as hot water, steam, hot air, thermal oils
- Heating
- Sterilizing
- Impregnating