Cryogenic ball valve KM 91-CT

Application

Cryogenic 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 −196 °C to +70 °C.

For liquids and gases of temperature lower than −60 °C, the ball of valve is equipped with upstream vent hole which ensures balancing of overpressure from valve cavity into upstream pipeline. In such case the valve is unidirectional and is equipped with label showing the fluid flow on the body.

Suitable for both corrosive and non-corrosive liquids and gases without mechanical impurities.

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

Production range

• DN 10 – DN 100, PN 16 – PN 100
• NPS ⅜″ – NPS 4″, Class 150 – Class 600

Characteristics

• floating ball,
• full bore,
• anti-static design,
• stem secured against release (anti-blow-out),
• sealed with PTFE.

Operation

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

Connection to piping

• internal thread (KM 9101.X-CT) – G (BSPP), NPT, R (BSPT), Rp
• weld end (KM 9103.X-CT) – butt or socket
• wafer (KM 9107.X-CT) – EN, API, GOST
• flanged (KM 9108.X-CT) – EN, API, GOST

Compliance with standards

• European standards:
  • EN 1983, EN 12516–1, EN 1092–1, EN 17292,
  • EN 558–1 series 1, EN 12982 series 68,
  • EN 228–1,
  • EN 1626,
  • 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 1.20.1,
  • ANSI B 16.10 or not standardised,
• international standards:
  • EN ISO 5211,

Testing

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

Materials

• standard: 1.4541, 1.4571.

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),
• 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,
• up-stream vent hole – for balancing pressure into up-stream pipeline,
• limit switches,
• documentation according to EN 10204 3.2,
• special adjustments according to customer requests,
• degreased for Oxygen service,
• 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.

Fluids

The ball valve is suitable, for example, for these fluids (after consulting the manufacturer):
oxygen, nitrogen, LPG, air, vacuum…

Type designation