IBO-GL-TW-125-25 wellhead
The IBO wellhead is a cover that hermetically closes the casing pipe of a deep well and routes the discharge pipe and the pump’s power cable through it. Thanks to the gasket that clamps onto the casing pipe, it protects the well against the ingress of contaminants and surface water. The series includes two installation variants—TW and TZ—in several sizes suited to typical well installations.
Who it is for
- Well drillers and drilling companies – watertight closure of the borehole and secure suspension of the pump from the metal eyelet.
- Submersible pump installers – routing the PE pipe and cable through a single sealed passage.
- Owners of domestic wells – protection of water intakes against surface contamination.
- Service technicians and maintenance crews – simplified access to the pump and periodic inspection of the well installation.
Applications
The TW wellhead is used to close the casing pipes of deep wells in which a pump is suspended on a cable. The discharge pipe and power cable are routed through the head, while the entire assembly remains watertight thanks to the compressed seals. A well closed in this way is protected against surface water, groundwater, and foreign objects.
The watertight closure also allows the capacity of shallower wells to be utilized more effectively: a vacuum may form between the head and the pump, assisting water intake as the water level drops. The specific variant depends on the casing pipe diameter, PE pipe diameter, and cable thickness. The IBO TW/TZ wellhead is available in versions suited to 110 mm and 125 mm casing pipes.
Features of the TW wellhead series
The body, base, and head cover are made of glass-fiber-reinforced polyamide (PA6+30GF), a material resistant to loads and the conditions inside a well. The seal is made of EPDM, while the screws, nuts, and eyelet for suspending the pump are made of galvanized steel. Each head has a cable gland ensuring a watertight passage for the power cable, as well as a passage for the PE pipe sealed with a gasket.
The series differ in their method of installation. The head of the TW series is installed inside the casing pipe, while the head of the TZ series is fitted over the casing pipe from above; the TZ version additionally features a PE quick coupling and a threaded link for suspending the pump. Regardless of the variant, the metal eyelet allows you to safely suspend a submersible pump weighing up to 200 kg.
- Type: wellhead (sealing cover for the casing pipe)
- Series: TW (installation inside the casing pipe)
- Body material: glass-fiber-reinforced polyamide (PA6+30GF)
- Seal: EPDM
- Pump suspension eye: galvanized steel
- Compatible casing pipe diameter: 125 mm
- PE pipe pass-through: 25 mm
- Cable pass-through diameter: 6–10
- Max. load (pump suspension): 200 kg
IBO – 24-month (2-year) manufacturer’s warranty. Dambat provides warranty and post-warranty service.
Dambat – a trusted manufacturer of pumps and water engineering equipment with quality certificates.
Frequently asked questions (FAQ) – what is the TW / TZ wellhead used for?
What is a wellhead used for?
The wellhead hermetically seals the casing pipe of a deep well and routes the discharge pipe and pump cable through it. It protects the well from surface water, groundwater, and contaminants, while the metal eye allows the pump, weighing up to 200 kg, to be safely suspended.
What is the difference between the TW and TZ series?
TW-series wellheads are installed inside the casing pipe, while TZ-series wellheads are fitted over the casing pipe from above. The TZ version additionally features a PE quick connector and a threaded link for suspending the pump. The choice depends on how the casing pipe is finished in the particular well.
How do I choose the right wellhead size for my well?
Three parameters must be matched: the casing pipe diameter (110 or 125 mm), the diameter of the PE pipe leading to the pump (25, 32, 40, or 50 mm), and the power cable diameter (6–10 mm in the TW series, 6–12 mm in the TZ series). The model designation, e.g. IBO-GL-TW-125-40, indicates the series, wellhead diameter, and PE pipe diameter, respectively. If you have any doubts, please contact our technical department.
How do I install a wellhead?
The PE pipe is connected to the pump’s discharge outlet, passed through the wellhead, and the cable is fed through the cable gland. The pump is suspended on a rope attached to the wellhead’s eye or link, after which the wellhead is seated inside or on the casing pipe and the screws are tightened. Installation should be carried out by a qualified installer with the power disconnected.
Is the wellhead covered by the manufacturer’s warranty?
IBO – 24-month (2-year) manufacturer’s warranty. Dambat provides warranty and post-warranty service.
Where can I buy an IBO TW / TZ wellhead?
As a manufacturer, we do not sell directly. IBO wellheads from the TW and TZ series are available from our commercial partners, plumbing wholesalers, and authorized online distributors.
