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R520
Changeover ball valve, 3-way, DN 20, External thread, G 1 1/4", PN 40, ps 1600 kPa, Kvs 21 m³/h, Fluid temperature -10...100°C [14...212°F]
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Design Data : Design Data
- Actuator Selection
- Downloads
- Accessories
- Details
Actuator Selection
Downloads
Accessories
Mechanical accessory
EXT-OC-ZR520
Insulation shell for valve R5.., DN 20
only for non-condensing applications
ZR-EXT-01
Valve neck extension for ball valve DN 15...50
ZR4520
Pipe connector for ball valve with external thread, DN 20, Rp 3/4", G 1 1/4"
Electrical accessory
ZR24-2
Stem heater for ball valve DN 15...50, AC/DC 24 V, 20 W
Details
Specifications
- Pattern
- 3-way
- Kvs
- 21 m³/h
- Fluid
- Cold and hot water, potable water (on request), water with glycol up to max. 50% vol.
- Fluid temperature
- -10...100°C [14...212°F]
- Fluid temperature note
-
- At a fluid temperature of -10...2°C, a valve neck extension is recommended.
- The allowed fluid temperature can be limited, depending on the type of actuator. Limitations can be found in the respective data sheets of the actuators.
- Close-off pressure
- 1400 kPa
- Differential pressure Δpmax
- 400 kPa
- Differential pressure note
- 200 kPa for low-noise operation
- Leakage rate {Tools}
- A – AB: air-bubble tight, leakage rate A; B – AB: Leakage class I, max. 1% of the Kvs value
- Pipe connection
- External thread