Česky English Pусски Po polsku Deutsch
manufacturer of industrial valves

Jacketed ball valve KM 91-HJ

Products >> Direct ball valves
Datasheets for download


Flanged jacketed ball valves are isolating valves designed to fully open or close the service fluid flow. These valves are used when the service fluid is solid at ambient temperature (e.g. Sulphur or bitumen) and it is necessary to keep the fluid liquid to operate the valve. Steam or oil is used as heating medium which allows to heat up the service fluid above it's melting point thus enabling operation of the valve. They are not designed to be used for throttling or regulating purposes.

The scope of application of the ball valve depends directly on materials and on design of the basic valve that is jacketed. Maximum temperature of heating medium must not exceed maximum working temperature of the valve itself.

It is possible to equip whichever ball valve from KE-ARM production range with a heating jacket, i. e. straight ball valves, three-way, high temperature, ball valves according to EN or API standards etc. The ‚-HJ‘ code is added to the valve's type to distinguish the jacketed valve (e.g. wafer type ball valve with soft seats has a code KM 9107.1–01, with a jacketed modification it is KM 9107.1–01-HJ.

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

Considering the individual solution for each contract, it is impossible to specify all ball valve's parameters here. Do not hesitate to contact our office to get the quotation according your requirements.

Production range

  • DN 10 – DN 200, PN 16 – PN 250
  • NPS ⅜″ – NPS 8″, Class 150 – Class 1500


  • floating ball,
  • full bore,
  • anti-static design,
  • stem secured against release (anti-blow-out),
  • sealed with:
    • O-rings – NBR, EPDM, FPM (FKM), HNBR, FFKM,
    • Graphite.


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

Connection to piping

  • internal thread (KM 9101.X-HJ) – G (BSPP), NPT, R (BSPT), Rp
  • weld end (KM 9103.X-HJ) – butt or socket
  • wafer (KM 9107.X-HJ) – EN, API, GOST
  • flanged (KM 9108.X-HJ) – 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 228–1,
    • 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,


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


  • standard: S355J2, A350 LF2, 1.4541, 1.4571,
  • upon request: P265GH, 1.4306, 1.4404, 1.4539, 1.4462, 1.7335 , Hastelloy C276, and other.

Optional accessories, adjustments and services

  • fire-safe design – fire resistance in accordance with EN ISO 10497 (API 607)
  • lockable handle with a padlock – for locking opened / closed position of the valve
  • extended stem – e.g. for the reason of insulation of the valve and pipeline
  • limit switches
  • documentation according to EN 10204 3.1 or 3.2
  • special adjustments according to customer requests
  • design according to standard NACE MR 0175 or ISO 15156 for fluids with hydrogen sulfide (H2S)
  • 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.


The ball valve is suitable, for example, for these fluids (after consulting the manufacturer):
Sulfur, asphalt, bitumen…

Type designation

Ball valves|Three-way valves|

Check valves|Services


Pekařská 1639/79A, Opava
Czech Republic

+420 555 440 200


Privacy Policy

© 2003-2024 KE-ARM, s.r.o.