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Altai Machine-Building Company

Developments

Low-resistant valves

These valves are
designed for complete
cut-off of medium flow.
Bore element has low flow
friction factor.

  1. Steady bush
  2. Detachable seat
  3. Sealing gasket
Destination DN,
мм.
PN,
MPа
Т, С° Class ANSI ξ Torque N•м dp,
мм
L,
мм
Actuator type* Configuration** Weight,
kg
amk.lvl.10.100.450 10 10,0 450 600 3.8 20 10 110 A М, Г, Э 3.0
amk.lvl.10.100.450 10 10,0 450 600 3.8 20 10 110 A М, Г, Э 3.0
amk.lvl.10.100.450 10 10,0 450 600 3.8 20 10 110 A М, Г, Э 3.0
amk.lvl.10.100.450 10 10,0 450 600 3.8 20 10 110 A М, Г, Э 3.0
amk.lvl.10.100.450 10 10,0 450 600 3.8 20 10 110 A М, Г, Э 3.0
amk.lvl.10.100.450 10 10,0 450 600 3.8 20 10 110 A М, Г, Э 3.0
amk.lvl.10.100.450 10 10,0 450 600 3.8 20 10 110 A М, Г, Э 3.0
amk.lvl.10.100.450 10 10,0 450 600 3.8 20 10 110 A М, Г, Э 3.0
amk.lvl.10.100.450 10 10,0 450 600 3.8 20 10 110 A М, Г, Э 3.0
amk.lvl.10.100.450 10 10,0 450 600 3.8 20 10 110 A М, Г, Э 3.0
amk.lvl.10.100.450 10 10,0 450 600 3.8 20 10 110 A М, Г, Э 3.0
amk.lvl.10.100.450 10 10,0 450 600 3.8 20 10 110 A М, Г, Э 3.0
amk.lvl.10.100.450 10 10,0 450 600 3.8 20 10 110 A М, Г, Э 3.0
amk.lvl.10.100.450 10 10,0 450 600 3.8 20 10 110 A М, Г, Э 3.0
amk.lvl.10.100.450 10 10,0 450 600 3.8 20 10 110 A М, Г, Э 3.0
amk.lvl.10.100.450 10 10,0 450 600 3.8 20 10 110 A М, Г, Э 3.0
amk.lvl.10.100.450 10 10,0 450 600 3.8 20 10 110 A М, Г, Э 3.0
amk.lvl.10.100.450 10 10,0 450 600 3.8 20 10 110 A М, Г, Э 3.0
amk.lvl.10.100.450 10 10,0 450 600 3.8 20 10 110 A М, Г, Э 3.0
amk.lvl.10.100.450 10 10,0 450 600 3.8 20 10 110 A М, Г, Э 3.0
** М — hand wheel, Г — ball joint, Э — electric drive
* — ref. electric drives section

Basic design:

amk.lvl DN10-65

Tmax 280-450°С
  • Body – steel 20, steel 25 (GOST 8479);
  • Yoke – steel 20, steel 25 (GOST 8479);
  • Valve stem – steel 12Х18Н10Т (GOST 5632) with catalytic nitrogenization;
  • Valve spindle – steel 20Х13 (GOST 5632);
  • Valve seat – steel 12Х18Н10Т (GOST 5632) with catalytic nitrogenization or building-up welding cв-04Х19Н9С2.

amk.lvl DN10-65

Tmax 545-560°С
  • Body – steel 12Х1МФ GOST 8479;
  • Yoke – steel 12Х1МФ (GOST 20072);
  • Valve stem – steel 12Х18Н10Т (GOST 5632) with catalytic nitrogenization;
  • Valve spindle – steel 20Х13 (GOST 5632);
  • Valve seat – steel 12Х18Н10Т (GOST 5632) with catalytic nitrogenization or building-up welding св-04Х19Н9С2.

amk.lvl.80

  • Body – steel 20ГСЛ (GOST 108.961.03);
  • Yoke (сварной) – steel 20К (GOST 5520);
  • Valve spindle – steel 25Х1МФ (GOST 20072) with catalytic nitrogenization;
  • Valve seat – building-up welding св-04Х19Н9С2.

Premium design:

  • Quick-release valve seats.
  • Valve stem and seat are made of steel 12Х18Н10Т and reinforced with electrolytic plasma polishing, implantation of nitrogen ions, multilayer ionic and plasma coating with titanium nitride;
  • Threaded spindle bush — straight bronze БрОФ10-1 (enhances service life);
  • Warranty: 36 months.

Top priorities of development of new valve models:

  • Extension of lifetime of the gate valve elements (spindle, spool, disk, seat) by use of plasma building-up welding of the working surfaces. E.g., wire 20Х13 is conventionally used for building-up welding of the sealing surfaces of the valve disk and seat (manufactured by OJSC Sibenergomash). But we use electrodes ЦН-6Л, and such metal is 3 times erosion-resistant than wire 20Х13

  • Transition from the casted bodies to the welded bodies that are different in enhanced metal structure, absence of pockets and shells, less metal consumption

  • Development of full-flow bodies for stop valves

  • Enhanced spraying of cooling water due to steam power; increased number of injectors; nozzles with load-dependent alternating flow characteristics

  • Enhanced ergonomics

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