KSB VALVE - SHUT-OFF GATE VALVE STAAL 40 AKD/AKDS

KSB GROUP

Gate Valves to DIN/EN with Bolted Bonnet

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1. Design
Gate valve to DIN/EN with flanged or butt weld ends, with bolted bonnet, body of forged or welded construction, non-rotating stem, split wedge with flexibly mounted discs for precise alignment with the body seats. Seat/disc interface made of wear and corrosion resistant 17 % chrome steel.

2. Application
Industrial plants, power stations, process engineering and shipbuilding. For water and steam. Other non-aggressive fluids such as gas or oil on request.

Material	EN-GJL 250
Nominal sizes	DN 50 to DN 900
Nominal pressure	PN 10 to 40
Permissible operating temperature	-10 to +530°C
Permissible operating pressure	40 bar

1 Reliable, tight shut-off and service-friendly design

Wedge holder with flexibly mounted split wedge. Precise alignment of wedge discs with body seats; wedge discs are easy to replace.
Actuating moments are absorbed by the wedge holder guided in the body. No additional loads on the wedge discs and the seat/disc interface.
Easy mounting of actuator on yoke head.

2 Additional safety and blow-out protection by standard back seat.
3 Long service life and high functional reliability

Stop nut as standard. Limited wedge action prevents jamming in closed position and ensures reliable opening of the gate valve even in the event of temperature transients.
Of the gland packing due to non-rotating stem with burnished shank.
Threaded bush runs in ball bearings for smooth actuation.
Hard-faced seat/disc interface made of wear-resistant and corrosion-proof 17 % chrome steel or Stellite.

4 Threaded bush free from non-ferrous metals, for versatile application.

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