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manufacturer of industrial valves

Ball valve with metal seats KM 91-MF

Products >> Direct ball valves
Datasheets for download

Application

Ball valve is isolating valve designed to fully open or close the service fluid flow. It is not designed to be used for throttling or regulating purposes. For temperatures from −50 °C to +300 °C.

Suitable for water, steam, gas, oil, crude oil, acid, alkali and other liquids and gases with mechanical impurities – solid particles with sizes not exceeding 5 mm.

Approved for fluids in groups 1 (hazardous) and 2 according to 2014/68/EU.

Production range

  • DN 10 – DN 100, PN 16 – PN 160
  • NPS ½″ – NPS 4″, Class 150 – Class 900

Characteristics

  • floating ball,
  • full bore,
  • anti-static design,
  • stem secured against release (anti-blow-out),
  • double stem sealing,
  • primary sealing between ball and seat: metal-metal,
  • double stem sealing,
  • sealed with O-rings – NBR, EPDM, FPM (FKM), HNBR, FFKM.

Operation

  • hand lever,
  • hand wheel with worm gear,
  • pneumatic actuator,
  • electric actuator.

Connection to piping

  • weld end (KM 9103.X-MF) – butt or socket
  • flanged (KM 9108.X-MF) – EN, API, GOST

Compliance with standards

  • European standards:
    • EN 1983, EN 12516–1, EN 1092–1, EN 17292,
    • EN 558–1 series 1 or not standardised, EN 12982 series 68,
    • EN ISO 80079–36 (ATEX) – II 1G Ex h IIB T6…T1 Ga,
  • American standards:
    • API 608, ANSI B 16.5, ANSI B16.25,
    • ANSI B 16.10 or not standardised,
  • international standards:
    • EN ISO 5211,

Testing

  • EN 12266–1, EN 12266–1, leakage rate A – zero leakage,
  • API 598, or acc. to API 6D – zero leakage.

Materials

  • standard: S355J2, A350 LF2, 1.4541, 1.4571, 1.4034 (MF5), Stellite 6 (MFS),
  • upon request: P265GH, 1.4306, 1.4462, 1.7335 , Stellite 12, and other.

Optional accessories, adjustments and services

  • different face-to-face dimensions or end combinations,
  • adaptation of face form (Groove, Tongue, Spigot, Recess, O-ring groove, RTJ),
  • connection for actuator according to ISO 5211,
  • fire-safe design – fire resistance in accordance with EN ISO 10497 (API 607),
  • heating jacket – for keeping the fluid liquid,
  • lockable handle with a padlock,
  • extended stem – e.g. for the reason of insulation of the valve and pipeline,
  • design according to TA-Luft or EN 15848–1,
  • limit switches,
  • documentation according to EN 10204 3.2,
  • special adjustments according to customer requests,
  • design according to standard NACE MR 0175 or ISO 15156 for fluids with hydrogen sulfide (H2S),
  • fully welded design,
  • design for application in potentially explosive atmospheres according to the directive 2014/34/EU (ATEX):
    • I M1 Ex h I Ma,
    • II 1G Ex h IIC T6…T1 Ga,
    • II 1D Ex h IIIC TX °C Da.

Type designation


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