Hot Tapping Ball Valves / Ball Valves for Network Expansion
The Vexve hot tapping ball valve (type NAVAL) is used to extend pipework systems during operation.
This allows new customers to be connected to the existing pipe network at full operating pressure and temperature.
Draining, filling and venting the existing pipe network is no longer necessary, resulting in considerable time and cost savings.
When using a hot tapping ball valve there is no need to use a sluice plate.
Hot Tapping is therefore even easier and safer.
Vexve hot tapping ball valves are often used in conjunction with our innovative hot tapping system.
You can find more information on the hot tapping process on our pages hot tapping tools and hot tapping service.
Applications hot tapping ball valve
- uncomplicated expansion of pipe networks by creating new connections under full pressure and full temperature without interrupting the supply or draining the system
- preparation of a piping system for future connections (see also branching ball valves)
- suitable for all non-aggressive media, such as district heating or cooling water, oil and compressed air
- operating conditions according to data sheet
Construction hot tapping ball valve
- fully welded steel or stainless steel body in compact design
- stainless steel floating ball with spring-loaded, graphite-reinforced PTFE ball seals
- blow-out safe, short spindle made of stainless steel with triple sealing (two FPM O-rings + graphite-reinforced PTFE pressure ring)
- spindle with screw-on and weldable cap
- operation by means of external hexagon wrench with 90° open/close stop
- reinforced welding end
- incl. threaded connection for Kähler tapping tool (type Naval)
Versions hot tapping ball valve
- Nominal sizes:
DN20-200 (steel version)
DN32-100 (stainless steel version) - Pressure ratings:
PN25, 40 - Connection types:
welding end / welding end: DN20-150
welding end / flange: DN150-200 - Bore types:
full bore (steel version)
(DN200 reduced bore)
reduced bore (stainless steel version) - Operation:
external hexagon wrench or optionally available with extended spindle and hand lever - Special solutions:
special customer-oriented solutions on request
Features hot tapping ball valves
Fully welded construction of high-quality materials
- made from high-quality European materials following highest quality standards
- high user and environmental friendliness
- high energy efficiency
- robust and reliable even at high pressure and high temperatures thanks to pressure vessel steel
- compact construction
- space-saving design
- maintenance-free
- long service life
- available from stock
Easy installation and application, good insulating properties
- safe, quick and easy to install
- suitable for many different applications, even in demanding environments
- low torque
- no through rotation of the ball possible thanks to the open/close stop
- clear position indicator
- full bi-directional tightness (EN 12266-1, leak rate A)
- can be used as a “normal” valve after hot tapping in connection with long spindle and hand lever
- good and cost-effective insulation thanks to short stem
- no issues with condensation
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Our products in the category „Hot Tapping Valves“
The following products are available in our online shop. Further sizes and versions on request.
KÄHLER Hot-Tapping Valve WE/FL DN150 PN25 fb Steel
Hot-Tapping ball valve welding end / flanged end fully-welded construction full bore Body material: Steel P235GH (1.0345) Ball material: Stainless steel X5CrNi18-10 (1.4301) Stem: Stainless steel X8CrNiS18-9 (1.4305) Spring-loaded ball sealing made of reinforced PTFE Steam sealing: FPM Type Vexve 126151 Type Naval 281495 Operation conditions acc. to data sheet Operation via ext. hex. Stem can be welded if required (weldable cover screw) with threaded connection for KÄHLER hot tapping device type Naval
KÄHLER Hot-Tapping Valve WE/FL DN200 PN25 fb Steel
Hot-Tapping ball valve welding end / flanged end fully-welded construction reduced bore Body material: Steel P235GH (1.0345) Ball material: Stainless steel X5CrNi18-10 (1.4301) Stem: Stainless steel X8CrNiS18-9 (1.4305) Spring-loaded ball sealing made of reinforced PTFE Steam sealing: FPM Type Vexve 126201 Type Naval 281496 Operation conditions acc. to data sheet Operation via ext. hex. Stem can be welded if required (weldable cover screw) with threaded connection for KÄHLER hot tapping device type Naval
KÄHLER Hot-Tapping Valve WE/WE DN020 PN40 fb Steel
Hot-Tapping ball valve welding ends fully-welded construction full bore Body material: Steel P235GH (1.0345) Ball material: Stainless steel X5CrNi18-10 (1.4301) Stem: Stainless steel X8CrNiS18-9 (1.4305) Spring-loaded ball sealing made of reinforced PTFE Steam sealing: FPM Type Vexve 126020 Type Naval 281485 Operation conditions acc. to data sheet Operation via ext. hex. Stem can be welded if required (weldable cover screw) with threaded connection for KÄHLER hot tapping device type Naval
KÄHLER Hot-Tapping Valve WE/WE DN025 PN40 fb H
Hot-Tapping ball valve with extended stem welding ends fully-welded construction full bore Body material: Steel P235GH (1.0345) Ball material: Stainless steel X5CrNi18-10 (1.4301) Stem: Stainless steel X8CrNiS18-9 (1.4305) Spring-loaded ball sealing made of reinforced PTFE Steam sealing: FPM Type Vexve 126025/H Type Naval 281466 Operation conditions acc. to data sheet with threaded connection for KÄHLER hot tapping device type Naval incl. handle
KÄHLER Hot-Tapping Valve WE/WE DN025 PN40 fb Steel
welding ends fully-welded construction full bore Body material: Steel P235GH (1.0345) Ball material: Stainless steel X5CrNi18-10 (1.4301) Stem: Stainless steel X8CrNiS18-9 (1.4305) Spring-loaded ball sealing made of reinforced PTFE Steam sealing: FPM Type Vexve 126025 Type Naval 281486 Operation conditions acc. to data sheet Operation via ext. hex. Stem can be welded if required (weldable cover screw) with threaded connection for KÄHLER hot tapping device type Naval
KÄHLER Hot-Tapping Valve WE/WE DN032 PN40 fb H
Hot-Tapping ball valve with extended stem welding ends fully-welded construction full bore Body material: Steel P235GH (1.0345) Ball material: Stainless steel X5CrNi18-10 (1.4301) Stem: Stainless steel X8CrNiS18-9 (1.4305) Spring-loaded ball sealing made of reinforced PTFE Steam sealing: FPM Type Vexve 126032/H Type Naval 281467 Operation conditions acc. to data sheet with threaded connection for KÄHLER hot tapping device type Naval incl. handle
KÄHLER Hot-Tapping Valve WE/WE DN032 PN40 fb Steel
Hot-Tapping ball valve welding ends fully-welded construction full bore Body material: Steel P235GH (1.0345) Ball material: Stainless steel X5CrNi18-10 (1.4301) Stem: Stainless steel X8CrNiS18-9 (1.4305) Spring-loaded ball sealing made of reinforced PTFE Steam sealing: FPM Type Vexve 126032 Type Naval 281487 Operation conditions acc. to data sheet Operation via ext. hex. Stem can be welded if required (weldable cover screw) with threaded connection for KÄHLER hot tapping device type Naval
KÄHLER Hot-Tapping Valve WE/WE DN040 PN40 fb H
Hot-Tapping ball valve with extended stem welding ends fully-welded construction full bore Body material: Steel P235GH (1.0345) Ball material: Stainless steel X5CrNi18-10 (1.4301) Stem: Stainless steel X8CrNiS18-9 (1.4305) Spring-loaded ball sealing made of reinforced PTFE Steam sealing: FPM Type Vexve 126040/H Type Naval 281468 Operation conditions acc. to data sheet with threaded connection for KÄHLER hot tapping device type Naval incl. handle
KÄHLER Hot-Tapping Valve WE/WE DN040 PN40 fb Steel
Hot-Tapping ball valve welding ends fully-welded construction full bore Body material: Steel P235GH (1.0345) Ball material: Stainless steel X5CrNi18-10 (1.4301) Stem: Stainless steel X8CrNiS18-9 (1.4305) Spring-loaded ball sealing made of reinforced PTFE Steam sealing: FPM Type Vexve 126040 Type Naval 281488 Operation conditions acc. to data sheet Operation via ext. hex. Stem can be welded if required (weldable cover screw) with threaded connection for KÄHLER hot tapping device type Naval
KÄHLER Hot-Tapping Valve WE/WE DN050 PN40 fb H
Hot-Tapping ball valve with extended stem welding ends fully-welded construction full bore Body material: Steel P235GH (1.0345) Ball material: Stainless steel X5CrNi18-10 (1.4301) Stem: Stainless steel X8CrNiS18-9 (1.4305) Spring-loaded ball sealing made of reinforced PTFE Steam sealing: FPM Type Vexve 126050/H Type Naval 281469 Operation conditions acc. to data sheet with threaded connection for KÄHLER hot tapping device type Naval incl. handle
KÄHLER Hot-Tapping Valve WE/WE DN050 PN40 fb Steel
Hot-Tapping ball valve welding ends fully-welded construction full bore Body material: Steel P235GH (1.0345) Ball material: Stainless steel X5CrNi18-10 (1.4301) Stem: Stainless steel X8CrNiS18-9 (1.4305) Spring-loaded ball sealing made of reinforced PTFE Steam sealing: FPM Type Vexve 126050 Type Naval 281489 Operation conditions acc. to data sheet Operation via ext. hex. Stem can be welded if required (weldable cover screw) with threaded connection for KÄHLER hot tapping device type Naval
KÄHLER Hot-Tapping Valve WE/WE DN065 PN25 fb H
Hot-Tapping ball valve with extended stem welding ends fully-welded construction full bore Body material: Steel P235GH (1.0345) Ball material: Stainless steel X5CrNi18-10 (1.4301) Stem: Stainless steel X8CrNiS18-9 (1.4305) Spring-loaded ball sealing made of reinforced PTFE Steam sealing: FPM Type Vexve 126065/H Type Naval 281470 Operation conditions acc. to data sheet with threaded connection for KÄHLER hot tapping device type Naval incl. handle
KÄHLER Hot-Tapping Valve WE/WE DN065 PN25 fb Steel
Hot-Tapping ball valve welding ends fully-welded construction full bore Body material: Steel P235GH (1.0345) Ball material: Stainless steel X5CrNi18-10 (1.4301) Stem: Stainless steel X8CrNiS18-9 (1.4305) Spring-loaded ball sealing made of reinforced PTFE Steam sealing: FPM Type Vexve 126065 Type Naval 281490 Operation conditions acc. to data sheet Operation via ext. hex. Stem can be welded if required (weldable cover screw) with threaded connection for KÄHLER hot tapping device type Naval
KÄHLER Hot-Tapping Valve WE/WE DN080 PN25 fb H
Hot-Tapping ball valve with extended stem welding ends fully-welded construction full bore Body material: Steel P235GH (1.0345) Ball material: Stainless steel X5CrNi18-10 (1.4301) Stem: Stainless steel X8CrNiS18-9 (1.4305) Spring-loaded ball sealing made of reinforced PTFE Steam sealing: FPM Type Vexve 126080/H Type Naval 281471 Operation conditions acc. to data sheet with threaded connection for KÄHLER hot tapping device type Naval incl. handle
KÄHLER Hot-Tapping Valve WE/WE DN080 PN25 fb Steel
Hot-Tapping ball valve welding ends fully-welded construction full bore Body material: Steel P235GH (1.0345) Ball material: Stainless steel X5CrNi18-10 (1.4301) Stem: Stainless steel X8CrNiS18-9 (1.4305) Spring-loaded ball sealing made of reinforced PTFE Steam sealing: FPM Type Vexve 126080 Type Naval 281491 Operation conditions acc. to data sheet Operation via ext. hex. Stem can be welded if required (weldable cover screw) with threaded connection for KÄHLER hot tapping device type Naval
KÄHLER Hot-Tapping Valve WE/WE DN100 PN25 fb H
Hot-Tapping ball valve with extended stem welding ends fully-welded construction full bore Body material: Steel P235GH (1.0345) Ball material: Stainless steel X5CrNi18-10 (1.4301) Stem: Stainless steel X8CrNiS18-9 (1.4305) Spring-loaded ball sealing made of reinforced PTFE Steam sealing: FPM Type Vexve 126100/E Type Naval 281472 Operation conditions acc. to data sheet with threaded connection for KÄHLER hot tapping device type Naval incl. handle
KÄHLER Hot-Tapping Valve WE/WE DN100 PN25 fb Steel
Hot-Tapping ball valve welding ends fully-welded construction full bore Body material: Steel P235GH (1.0345) Ball material: Stainless steel X5CrNi18-10 (1.4301) Stem: Stainless steel X8CrNiS18-9 (1.4305) Spring-loaded ball sealing made of reinforced PTFE Steam sealing: FPM Type Vexve 126100 Type Naval 281492 Operation conditions acc. to data sheet Operation via ext. hex. Stem can be welded if required (weldable cover screw) with threaded connection for KÄHLER hot tapping device type Naval
KÄHLER Hot-Tapping Valve WE/WE DN125 PN25 fb H
Hot-Tapping ball valve with extended stem welding ends fully-welded construction full bore Body material: Steel P235GH (1.0345) Ball material: Stainless steel X5CrNi18-10 (1.4301) Stem: Stainless steel X8CrNiS18-9 (1.4305) Spring-loaded ball sealing made of reinforced PTFE Steam sealing: FPM Type Vexve 126125/E Type Naval 281473 Operation conditions acc. to data sheet with threaded connection for KÄHLER hot tapping device type Naval incl. handle
KÄHLER Hot-Tapping Valve WE/WE DN125 PN25 fb Steel
Hot-Tapping ball valve welding ends fully-welded construction full bore Body material: Steel P235GH (1.0345) Ball material: Stainless steel X5CrNi18-10 (1.4301) Stem: Stainless steel X8CrNiS18-9 (1.4305) Spring-loaded ball sealing made of reinforced PTFE Steam sealing: FPM Type Vexve 126125 Type Naval 281493 Operation conditions acc. to data sheet Operation via ext. hex. Stem can be welded if required (weldable cover screw) with threaded connection for KÄHLER hot tapping device type Naval
KÄHLER Hot-Tapping Valve WE/WE DN150 PN25 fb Steel
Hot-Tapping ball valve welding ends fully-welded construction reduced bore Body material: Steel P235GH (1.0345) Ball material: Stainless steel X5CrNi18-10 (1.4301) Stem: Stainless steel X8CrNiS18-9 (1.4305) Spring-loaded ball sealing made of reinforced PTFE Steam sealing: FPM Type Vexve 126150 Type Naval 281494 Operation conditions acc. to data sheet Operation via ext. hex. Stem can be welded if required (weldable cover screw) with threaded connection for KÄHLER hot tapping device type Naval
KÄHLER Hot-Tapping Valve WE/WE DN150 PN25 rb H
Hot-Tapping ball valve with extended stem welding ends fully-welded construction reduced bore Body material: Steel P235GH (1.0345) Ball material: Stainless steel X5CrNi18-10 (1.4301) Stem: Stainless steel X8CrNiS18-9 (1.4305) Spring-loaded ball sealing made of reinforced PTFE Steam sealing: FPM Type Vexve 126150/E Type Naval 281474 Operation conditions acc. to data sheet with threaded connection for KÄHLER hot tapping device type Naval incl. handle
FAQ - Häufig gestellte Fragen zu Anbohrkugelhähnen
Was ist ein Anbohrkugelhahn?
Ein vollverschweißter Kugelhahn mit verstärktem Anschweißende und einem Gewinde- oder Flanschanschluss für das Anbohrgerät. Er wird auf die bestehende Leitung geschweißt, anschließend wird die Leitung durch den geöffneten Hahn hindurch unter Druck und Temperatur angebohrt. Danach dient er als Absperrarmatur des neuen Abgangs. Damit entfallen Versorgungsunterbrechung und Systementleerung.
Welchen Vorteil hat der Anbohrkugelhahn gegenüber Anbohrsperre und Steckscheibe?
Steckscheibe und Anbohrsperre entfallen. Der Anbohrkugelhahn ist Anbohrarmatur und dauerhafte Absperrung in einem Bauteil. Das bedeutet weniger Bauteile, weniger Dichtstellen und einen einfacheren Ablauf auf der Baustelle. Ein T-Stück und eine separate Absperrarmatur werden nicht benötigt.
Welche Nennweiten und Druckstufen gibt es?
In Stahl DN20 bis DN150 mit vollem Durchgang und DN150 bis DN200 mit reduziertem Durchgang, in Edelstahl DN32 bis DN100 mit reduziertem Durchgang. Bis DN50 gilt PN40, ab DN65 PN25. Der Anschluss erfolgt beidseitig mit Schweißenden, ab DN150 auch als Schweißende/Flansch. Die Kugelhähne sind nach EN 12266-1 in Leckrate A geprüft.
Kurze oder verlängerte Spindel: Welche Ausführung passt?
Standard ist die kurze, ausblassichere Spindel mit Außensechskant und verschraub- und verschweißbarer Deckelschraube. Sie lässt sich gut isolieren und ist für erdverlegte Leitungen die richtige Wahl. Für begehbare Bereiche wie Schächte oder Keller gibt es Ausführungen mit verlängerter Spindel und Handhebel. Der Hahn wird dann nach der Anbohrung wie eine normale Absperrarmatur bedient.
Passt jeder Anbohrkugelhahn zu jedem Anbohrgerät?
Nein. Anbohrarmatur und Anbohrgerät müssen zueinander passen, weil Gewinde oder Flansch, Abdichtung und Lochsägengröße aufeinander abgestimmt sind. KÄHLER liefert Anbohrkugelhähne, NAVAL-Anbohrgeräte, Nennweitenadapter, Lochsägen und Zubehör aus einer Hand und prüft die Kombination vor dem Angebot.
Für welche Medien ist der Anbohrkugelhahn geeignet?
Für nichtaggressive Medien wie Heizwarmwasser, Fernwärmewasser, Klima-Kaltwasser, Öl und Druckluft. Typische Einsatzorte sind Fernwärme- und Fernkältenetze sowie Industrieanlagen. Die zulässige Kombination aus Druck und Temperatur steht im Datenblatt, für das Anbohren gelten zusätzlich die Grenzen des Anbohrgeräts von 25 bar und -30 °C bis +200 °C.