Special versions available – prices on request
• Housing available in various types of stainless steel, such as 1.4571 • Versions for higher temperatures on request • Actuation possible 100 mm away from the housing for higher temperature protection • Actuators, solenoid valves and limit switches according to customers’ specifications • Larger diameters available on request • Versions with loose flanges or welded flanges, e.g. in accordance with DIN 24154, P2 • Special colours • Other actuators on request
ACTUATORS FOR THROTTLE VALVES
Pneumatic AIR TORQUE rotary actuators (IP 65) Required air pressure 5 bar. Switch-over time for 90° < 3 seconds. On the rotary actuator a 5/2-way spring-return valve (1 coil) with manual air switch, with an angle push-in fitting for an 8 x 1 PU hose. Standard version closed when there is no power supply.
2 potential-free micro switches 4 to 250 V with spring-free gold contacts for SPS controls and suitable for amperages up to 5 A, solenoid and limit switches wired into limit switch. Solenoid valve and limit switch wired on terminals in a limit switch box.
Electrically operated BELIMO valve actuators (IP 42)
Overload proof, in standard version without limit switches. The valve remains under tension in the respective end position. Consumption approx. 4 watt. Switch-over time for 90° approx. 150 seconds. Valves larger than DN 300 mm without a seal and larger than DN 200 mm with a seal are not fitted with a BELIMO actuator in standard quality. Larger diameters available on request. Flexibly adjustable limit switches for switching off and remote controlling, or as a continuously adjustable actuator, are available at additional cost.
Electrically operated AIR TORQUE adjustable drives (IP 65)
1-phase, with emergency hand operation. Switch-over time for 90° for throttle valves without a seal approx. 11-12 seconds, throttle valves with a seal approx. 12-23 seconds, 2 limit switches integrated in the actuator. Prices for additional limit switch, potentiometer or position controller on request.
ATEX
Depending on the actuator, ATEX versions in category 2/3 G/D for the surroundings of the valves are available at additional cost. Inside the valve housing, Zone 0 or 20 is admitted for versions without an inner valve seal. For versions with a seal, ATEX versions up to and including DN 300 mm are also admitted inside Zone 0 or 20, but from DN 300 mm, only Zone 20 is admitted. If Zone 0 is required, conductive EPDM seal without food quality are necessary. Dusts and gases with a minimum ignition energy < 3 mJ are not admissible. All throttle valves in ATEX version are supplied with earthing lugs as standard.
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For more technical information go to
www.jacob-pipesystems.com
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