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11.9. Type 6024
Direct-acting 2/2-way low- p Proportional Valve; 1/2”or 3/4”(DN 8 – 12 mm)
Data: Data: Medium temperature –10 to +90 °C For applications with low operatingpressures (< 700 mbar, e.g. naturalgas) Type of protection IP 65 Operating voltage 24 V DC For neutral gases or liquids and vacuum Power consumption 18 W Control signal pulse width modulated (PWM) k
3 Vs values 1.4 to 2.8 m /h Max. operating pressure dependingon nominal diameter, 700 mbar (DN 8, 10psi) Characteristics: Process and product optimizationas a result of continuous control Stainless steel or brass valve body
Figure 53: Proportional Valve, Type 6024
Figure 54: Proportional Valve, Type 6223 FKM seals, EPDM or PTFE on request Tight-closing function in the event of power failure Hysteresis < 7% High repeatability Repeatability < 0.5 % F.S PWM control reduces stick-slip risk Span 1:25 Very short response time
11.10. Typ 6223
Servo-assisted 2/2-way high-flow Proportional Valve; 3/8”– 1”(DN 10 – 20 mm) Operating voltage 24 V DC For operation in closed control loops Power consumption depending on nominal diameter, 15 W For neutral liquids Control signal pulse width modulated (PWM) k
3 Vs values 1.4 to 5.0 m /h Max. operating pressure 10 bar(145 psi) Characteristics: Minimum p= 0.5 bar Process and product optimizationas a result of continuous control Brass valve body FKM seals, EPDM or PTFE on request Tight-closing function in the event of power failure Hysteresis < 5% High repeatability Repeatability < 1% F.S. PWM control reduces stick-slip risk Span 1:10 Medium temperature –10 to +90 °C Good response time (< 200 ms) Type of protection IP 65 4848/49