Description
Description
Belimo Ball Valves, shut off and Characterised control valves with internal thread fitting for use on warm and cold water systems, bubble-tight shutoff.
The Control Ball Valves guarantee an equal percentage valve characteristic and first-class control characteristics with their unique characterising disc.
The Control Ball Valves from Belimo Automation have set new standards for effective control since their introduction in 1999; tried-and-tested more than 2.5 million times they provide a cost-effective and innovative solution to conventional control valves.
Use the (S2) Actuator with this valve.
Specification
Media:Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Cold and warm water, water with glycol up to max. 50% vol.
Medium Temperature:           -10…120°C
Medium Temperature Note:      The allowed media temperature can be limited, depending on the type of actuator. Limitations can be found in the respective data sheets of the actuators.
Rated Pressure ps:Â Â Â Â Â Â Â Â Â Â Â Â Â 1600 kPa
Closing Pressure ∆ps:          1400 kPa
Differential Pressure ∆pmax:     350 kPa
Differential Pressure Note:Â Â Â Â Â Â Â 200 kPa for low-noise operation.
Flow Rate:                     Bypass B – AB: 70% of kvs value
Flow Characteristic:             Control path A – AB: equal percentage (VDI/VDE 2178), optimised in the opening range, Bypass B – AB: linear (VDI/VDE 2178).
Leakage Rate:                    Control path A – AB: Leakage rate A, air-bubble tight (EN 12266-1), Bypass B – AB: Leakage class I (EN 1349 and EN 60534-4) approx. 1…2% of the kvs value, with respect to the largest value within the DN.
Pipe Connectors:Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Internal thread according to ISO 7-1
The angle of Rotation:           90° (Operating range control path A – AB 15…90°, Bypass B – AB 15…70°)
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