Belimo Butterfly Valve DN65/PN16 Lug 24VAC/DC Modulating GGG40 EPDM IP54 ISO 5211 MP-Bus 90s 20Nm D665NL/SR24A-MP-5

This Belimo butterfly valve is offered in combination with a modulating electrical actuator. The actuator can turn the valve from 0-90 degrees in a time of 90 seconds and requires a supply voltage of 24 V AC/DC. The electrical actuator comes with a visual positioning indicator to clearly see valve position. The butterfly valve has a lug type flange for connecting it to the piping, a nominal diameter of DN 65, and is rated up to 16 bar (232 psi) for non-hazardous fluids. Please note that the maximum pressure may deviate based on the medium type, so carefully check the datasheet. The butterfly valve has a cast iron GGG 40 housing, and an EPDM seal. The valve is suitable for media temperatures between -20 and 120 °C (-4 and 248 °F). The actuator has an IP54 degree of protection and is suitable for an environmental temperature of -30 to 50 °C (-22 and 122 °F). The actuator utilizes the MP-Bus communication protocol and provides position feedback in the range of 0-10 V or 2-10 V, allowing for precise control and accurate monitoring of its position within the specified voltage range. The actuator can be mounted on the valve via the ISO 5211 flange. Before connecting the actuator, please read the manual carefully.

The actuator, equipped with overload protection, doesn't need limit switches and will stop automatically when the end stop is reached. Manual override is possible using a push-button, which disengages the gear train as long as the button is pressed or remains locked. The actuator can be directly mounted on the rotary or butterfly valve with a mounting flange. The mounting orientation relative to the valve can be selected in 90° increments. The actuator connects with a 0-10 V control signal and moves to the position defined by the signal. Voltage measurement is employed both for visually displaying the valve position within the 0.5% to 100% range and as a control signal for other actuators. In bus operation, the actuator receives its digital control signal from the upper-level controller via the MP-Bus and moves to the defined position. The U connection serves as a communication interface without providing an analog measuring voltage. The rotation angle can be adjusted with mechanical end stops.

Pros:

• No risk of water hammer due to slow closing (90 s)
• The components are interchangeable and can be replaced individually if needed
• High Kv-value because the fluid flows in a straight line
• This modulating actuator can position the valve anywhere between 0-90 degrees with a control signal of 0-10 V/2-10 V
• Suitable for viscous media