Gestra ZK313DIN

Control Valve with ZK Radial Stage Nozzle

Market and usage These valves are used in power plants and high-pressure steam and water systems in refineries, the chemicals industry, and in
industry in general. Some typical uses are:
Steam control systems for > 30 bar Injected water control systems in steam coolers
Feedwater control systems Draining and heating steam turbines, boilers and steam pipe systems
Continuous blowdown in steam boilers
Technical data
ZK 313 with tandem seat and ZK radial stage nozzle®
ZK 29 with adjustable
ZK radial stage nozzle®
Pressure rating
PN 630 and Cl 2500
Pressure rating
PN 160 and Cl 900
Nominal sizes
DN 25 – DN 150
Nominal sizes
DN 25 – DN 150
Max. differential pressure
300 bar and 370 bar
Max. differential pressure
100 bar
Max. operating temperatures
620 °C
Max. operating temperatures
550 °C
Kvs values
1.0 m³/h to 17 m³/h
Kvs values
0.7 m³/h to 130 m³/h
Forged materials
1.0460/A105
Forged material
1.5415
(DN 25 and 50)
1.7383/F22
Cast material
1.4903/F91
(DN 80-150)
1.7357/WC6
Body design
Straight through, angle, Z-pattern
Body design
Straight through, angle
Connections
Butt-weld ends
Connections
Butt-weld ends
Types of actuation
Leakage rates
1.7335/F12
Socket-weld ends
Socket-weld ends
Flanged end DIN/ASME
Flanged end DIN/ASME Types of actuation
Handwheel
Handwheel
Pneumatic diaphragm actuator
Pneumatic diaphragm actuator
Electric rotary actuator
Electric rotary actuator
Electric linear actuator
Electric linear actuator
Hydraulic cylinder
Hydraulic cylinder
Lever with part-turn actuator
Lever with/without part-turn actuator Leakage rates
A to EN 12266-1 Class VI to ANSI FCI 70-2-2006
Class VI to ANSI FCI 70-2-2006
GESTRA AG Münchener Str. 77 · 28215 Bremen · Germany P. O. Box 10 54 60 · 28054 Bremen · Germany
Tel. +49 421 3503-0 Fax +49 421 3503-393
A to EN 12266-1
[email protected] www.gestra.com
819647-00/06-2018gw (808999-00) · © 2018 · GESTRA AG · Bremen · Printed in Germany · Subject to technical modifications