Gate Valve Type Series Booklet

Legal information/Copyright Type Series Booklet AKG-A/AKGS-A All rights reserved. The contents provided herein must neither be distributed, copied, reproduced, edited or processed for any other purpose, nor otherwise transmitted, published or made available to a third party without the manufacturer's express written consent. Subject to technical modification without prior notice. © KSB SE & Co. KGaA, Frankenthal 17/01/2018

Gate Valves Gate Valves to DIN/EN in Pressure Seal Design Gate Valves Gate Valves to DIN/EN in Pressure Seal Design AKG-A/AKGS-A Body materials Selection as per pressure/temperature ratings (o Page 5) Main applications ■ Fossil-fuelled power stations ■ Process engineering ■ Boiler feed applications ■ Boiler recirculation ■ Chemical industry ■ Petrochemical industry ■ Sugar industry ■ Mining ■ Descaling units ■ Pulp and paper industry ■ Shipbuilding ■ Snow-making systems ■ Nuclear power stations Fluids handled ■ Water ■ Steam ■ Other non-aggressive fluids such as gas or oil on request. Design...

Gate Valves Gate Valves to DIN/EN in Pressure Seal Design 1) The valves are suitable for temperatures down to -10 °C. 2) Operating pressures to DIN 2401 are also permissible.

Gate Valves Gate Valves to DIN/EN in Pressure Seal Design Parts list DN 50/50-250/200 Part No. Connection branch Wedge discs Disc/wedge holder Yoke bonnet Connection branch Body Wedge discs Stem Material number P 250 GH 13 CrMo 4-5 P 250 GH 13 CrMo 4-5 P 250 GH 13 CrMo 4-5 P 250 GH 13 CrMo 4-5 P 250 GH 13 CrMo 4-5 P 250 GH 13 CrMo 4-5 C 22 N 13 CrMo 4-5 Hard-faced Stellite hard-faced X 39 CrMo 17-1 Body die-forged and welded Joint ring Pure graphite Gland follower Gland packing With packing end rings On cylindrical roller bearings Segmental ring Threaded bush ≥ DN 150 made of steel (welded) Recommended...

Gate Valves Gate Valves to DIN/EN in Pressure Seal Design Spur gear with handwheel Bevel gear with handwheel Electric actuator Electric actuator with spur gear Body pressure relief valve Also refer to type series booklet 7300.1. A body pressure relief valve is necessary if, with the gate valve closed, there is a danger of the liquid trapped inside the valve body heating up and causing an unacceptable pressure increase inside the valve. A warning sign is affixed to the yoke arm near the name plate. All gate valves with pressure seal bonnet are factory-supplied with a closed connection branch (131.2)...

Gate Valves Gate Valves to DIN/EN in Pressure Seal Design When ordering please state whether a pressure relief valve is to be provided, or whether excess pressure is to be released via a bypass and/or a relief hole in the inlet-side seat ring 515. In those cases, the gate valves can be used for one flow direction only. L ' The pressure relief valve must not be welded directly to connection branch 131.2 but must be connected to it via an intermediate pipe 710 in a vertical, upright position outside the insulating material. The minimum distance to the insulation is 200 mm. Dimensions and weights...

Gate Valves Gate Valves to DIN/EN in Pressure Seal Design Mating dimensions as per standard Face-to-face lengths: Flanges: Flange facing: Other flange designs ■ For example, undrilled with groove (type D) or recess (type F) to EN 1092-1 at both ends ■ Flanges to DIN ■ Other flange designs on request

Gate Valves Gate Valves to DIN/EN in Pressure Seal Design Dimensions and weights of AKGS-A AKGS-A Dimensions [mm] and weights [kg] PN Butt weld ends, Butt weld ends, machined unmachined ø Amax. Pipe dimensions Pipe dimensions Pipe dimensions Mating dimensions as per standard Face-to-face lengths: Butt weld ends: Weld groove form: Different designs of butt weld ends and weld groove forms are possible, but only within the dimensions Amax. and Bmin.. Butt weld ends to EN 12627 are possible. Installation instructions Nominal size of bypass valve The gate valves are designed for a max. differential...

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