Control Valves
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Control Valves ZK with Radial Stage Nozzle
Features of the ZK series:
● Extremely wear resistant
● Excellent sealing and control characteristic (FCI 70-2-2006, class VI (test procedure C) and EN 12266-1, leakage rate A)
● Tandem shut-off (dual seat) to be tight shut-off valve and control valve in one
● Variable valve characteristics (linear and equal-percentage)
● Easy assembly and inspection of nozzle insert
● Low sound level
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ZK 213 internals when new | Internals of a leak-off valve ZK 213, DN 100, after 13 years of operation with p1 = 374 bar (5420 psi), p2 = 11 bar (159.5 psi), t = 172 °C, m° = 35 kg/s |
Changing the valve characteristics using the ZK 29 as an example
Gestra ZK29, Max. diff.pressure : 100 bar
Download Technical Sheets - Gestra ZK29 DIN
Download Technical Sheets - Gestra ZK29 ASME
Gestra ZK313, Max. diff.pressure : 370 bar
Download Technical Sheets - Gestra ZK313 DIN
Download Technical Sheets - Gestra ZK313 ASME
Gestra ZK210, Max. diff.pressure : 100 bar
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Gestra ZK213, Max. diff.pressure : 560 bar
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Gestra ZK610, ZK613, Max. diff.pressure : 250 bar
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Control Valves with Electric and Pneumatic Actuators V725
Control of liquids, gases and steam up to 250°C. Ultra-compact pneumatic design thanks to directly attached positioner.
Gestra V725, Control valve
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Self-Acting Pressure Reducing Valves 5801, Self-Acting Pressure Maintaining Valves 5610
Features of the 5801 and 5610 series:
● Pressure controlled function operates without additional auxiliary energy
● Body shape gives optimum flow characteristic
● Long service life and operational reliability
● Bellows sealing
● Replaceable trim
Gestra 5801, Pressure Reducing Valve
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Gestra 5610, Pressure Maintaining Valve
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Cooling-Water Control Valves, BW/ CW up to PN 40, DN 25 – 100 mm (1 – 4")
CW- Direct acting proportional controller for regulating the cooling-water return temperature BW-self-acting control valves maintain constant return temperatures within their proportional range for hot water and thermal oil heating
Gestra CW41, CW41/4, Cooling-Water Control Valves
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Gestra BW31, Return Temperature Control Valves
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Clorius Self-Acting Temperature Control
Temperature control in heating and cooling processes in industrial plants, for h.v.a.c services and marine engineering. For liquids, gases, vapours
Self-Acting Temperature Controllers System Clorius
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