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ARI-STOBU, SDNR

ARI-STOBU SDNR - Screw Down Non Return valve can be delivered in different executions based on the ARI-STOBU globe valve design. Can be used in applications with water, hot water, steam, process water etc. Available with flanged and welded connections, in cast iron, nodular iron, carbon steel, forged steel and stainless steel. Straight through or angle pattern.
Metal seated or soft seated.

  • Fig. 006/306 Flanged connection, straight through
  • Fig. 007/307 Flanged connection, angle pattern
  • Fig. 005 Welded connection

Contact us for more information about these variants.

Properties
  • Flanged or welded connection
  • DIN: DN15-500, PN10-40
  • Straight through or angle pattern
  • Standard metal seated, soft seated PTFE with 25% carbon reinforcement on request
Technical data
  • Face to face acc. to DIN EN 558 series FTF-1, flange connection straight through
  • Face to face acc. to DIN EN 558 series FTF-8, flange connection angle pattern
  • Face to face acc. to DIN EN 12982 series ETE-1, welded connection straight through
Technical documentation
  • PED 2014/68/EU
  • TA-Luft EN ISO 15848-1, TÜV test no. 973-10675245-10A on request
  • Certificate EN 10204-3.1 on request
Technical table
Material compositions:
Description Materials
Body: Cast iron EN-JL1040, nodular iron EN-JS1049, carbon steel 1.0619+N
Bonnet: Cast iron EN-JL1040, nodular iron EN-JS1049, carbon steel 1.0619+N
Seat: DN15-40: Stainless steel 1.4551 / DN50-500: stainless steel (stellited) 1.4021+QT
Plug: DN15-150: Stainless steel (stellited) 1.4021+QT /  DN200-500: High temperature steel 1.0425
Stem/spring: Stainless steel (stellited) 1.4021+QT. Spring stainless steel 1.4301
Seat sealing: Metal seated
Stem sealing Standard gland packing with graphite