Steel gate valves 30S41Nzh

Purpose indicators of the valve 30s41nzh

• Working environment:
  Water, steam, oil, petroleum, natural gas, liquid non-aggressive petroleum products, non-aggressive liquid and gaseous media, in relation to which the materials used in the valve are corrosion-resistant
• Working environment temperature: from -40°С to +450°С
• Operating conditions:U1
• Minimum ambient temperature: -40°С

Material execution of the valve 30s41nzh (see Fig. 1)

• 1. Housing: steel 25L, 35L
• 2. Lid: steel 25L, 35L
• 3. Wedge (discs): steel 25L, 35L with surfacing, 20Х13
• 4. Spindle: 20X13
• 5. Spindle nut: steel 35, 40X
• 6. Nut: carbon steel GOST 1050-88 strength class not lower than 5 according to GOST 1759.5-87
• 7. Stud, bolt: carbon steel GOST 1050-88 strength class not lower than 5.6 according to GOST 1759.5-87
• 8. Tilting bolt: steel 35
• 9. Seal between the body and the cover (gasket, ring): paronite, TRG
• 10. Oil seal packing: AGI, TRG
• 11. Flywheel: steel 25L
• 12. Surfacing on the ring in the body: 07Х25Н13
• 13. Surfacing on the wedge: 13Х25Т

Purpose indicators of the valve 30ls41nzh

• Working environment:
  Water, steam, oil, petroleum, natural gas, liquid non-aggressive petroleum products, non-aggressive liquid and gaseous media, in relation to which the materials used in the valve are corrosion-resistant
• Working environment temperature: from -60°С to +450°С (for heat-resistant version from -40 to +550°С)
• Operating conditions:HL1
• Minimum ambient temperature: -60°С

Material execution of the valve 30ls41nzh (see Fig. 1)

• 1. Body: 20GL (for heat-resistant design - heat-resistant steel 20X5ML)
• 2. Lid: 20GL (for heat-resistant version - heat-resistant steel 20X5ML)
• 3. Wedge (discs): 20GL with surfacing 20Х13
• 4. Spindle: 14Х17Н7
• 5. Spindle nut: brass LS59-1
• 6. Nut: alloy steel GOST 4543-71 strength class not lower than 10 according to GOST 1759.4-87
• 7. Stud, bolt: alloy steel GOST 4543-71 strength class not lower than 10.9 according to GOST 1759.4-87
• 8. Tilting bolt: steel 40X
• 9. Seal between body and cover (gasket, ring): TRG
• 10. Seal packing: TRG
• 11. Flywheel: 20GL
• 13. Surfacing on the ring in the body: 07×25N13
• 14. Wedge surfacing: 13×25T

Purpose indicators of the valve 30нж41нж

• Working environment:
  Water, steam, natural gas, petroleum products, liquid, gaseous and chemically active media, in relation to which the materials used in the valve are corrosion-resistant
• Working environment temperature: from -60°С to +565°
• Operating conditions: UHL1
• Minimum ambient temperature: -60°С

Material execution of the valve 30нж41нж (see Fig. 1)

• 1. Case: 12Х18Н9ТЛ
• 2. Cover: 12Х18Н9ТЛ
• 3. Wedge (discs): 12Х18Н9ТЛ
• 4. Spindle: 12Х18Н9Т
• 5. Spindle nut: brass LS59-1
• 6. Nut: 12X18N9T
• 7. Stud, bolt: 45Х14Н14В2М
• 8. Tilting bolt: 45Х14Н14В2М
• 9. . Seal between the body and the cover (gasket, ring): TRG
• 10. Seal packing: TRG
• 11. Flywheel: steel 25L, 20GL
• 14. Surfacing on the ring in the body: 04Х19Н9С2

Fig. 1 Gate valves 30s(ls,nzh)41nzh

Overall dimensions of valves 30s41nzh, 30ls41nzh, 30nz41nzh