WELLHEADS
Hartmann Valves has manufactured wellheads to the highest quality and safety standards for over 75 years.

WELLHEADS- FROM ENGINEERING TO OPERATION & MAINTENANCE
It is crucial for the success of a geothermal project that all partners work hand in hand. Ensuring seamless collaboration between engineering partner, operator and manufacturer, Hartmann provides professional support in all project phases. Our customers and partners benefit from sharing more than 75 years of experience and professional expertise.
We offer support from early project development through engineering, manufacturing, installation and maintenance. This begins with guidance by our experienced sales engineers and a product development tailored to the customer and projectspecific requirements. Our production is carried out according to the highest quality standards. For installation, operational support, maintenance and repair works our service team is available around the clock.
The Hartmann philosophy includes the interfacefree provision of services from a single source. This is why we maintain our core competences inhouse at both German locations and foster the close collaboration of all departments.
Furthermore, it includes compilation of the comprehensive documentation for operator and approval authorities. Thus coherent documentation on the entire component manufacturing process is guaranteed. The fulfilment of the required regulations also greatly facilitates public acceptance for this form of renewable energy.

ENGINEERING OF HARTMANN WELLHEADS
As a secure interface between underground and surface installations our wellhead equipment meets the highest requirements regarding safety, quality and durability.
Adapted to project-specific requirements and designed for the highest flow rates and temperatures, our wellheads provide maximum operational safety and plant availability. By default they are equipped with gas-tight ball valves which have a metallic sealing between ball and seat to guarantee a high reliability and long service life.
YOUR BENEFITS IN THIS PROJECT PHASE
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Close cooperation with project partners
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Customised, project-specific design
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Consideration of long-term economic efficiency
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3D drawings and FEM analysis
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Comprehensive documentation for approval authorities
WELLHEAD DESIGNS
Our product portfolio covers a wide range of heat exchangers and reactors. Solutions for many applications such as chemical and power plants. Customization abilities to meet most customers demands and international design codes.
Engineering and manufacturing expertise for complex upgrade projects. Experienced manufacturing teams. Proven track record of first-of-a-kind, complex engineering solutions.
CUSTOMISED DESIGN HIGHLIGHTS
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ESP and LSP design
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Interchangeable design for production or injection
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Integration of several components in one block with less flange connections
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Control and injection lines
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Horizontal or vertical ESP Plug-in connection
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Additional connection ports (e.g. for injection, measurements)
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Flexible fail-safe-close automatisation with electric, hydraulic or pneumatic actuator



HORIZONTAL ESP PLUG-IN
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Less components – less height
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Cost-saving workovers
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Quick pump exchange
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Modular design for ESP
VERTICAL ESP PLUG-IN
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Eccentric ESP design for production
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Master valve equipped with fail-safe-close actuator
DOUBLE BARRIER DESIGN
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Twin ball valves for doubled safety in short length
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Interchangeable design (production or injection)
MANUFACTURING OF HARTMANN WELLHEADS
Thanks to their above average durability, Hartmann products amortise themselves sooner than fast-wearing products which entail high maintenance cost, expensive down time and early reinvestments. In order to guarantee this high product quality, we select our suppliers thoroughly and source only high quality material. In order to provide necessary components with short lead time we keep various raw materials in stock.
MADE IN GERMANY
We develop, assemble and test exclusively in Germany. Our locations at Celle and Burgdorf-Ehlershausen deploy the most modern production techniques in this respect. As a certified welding fabricator approved to DIN EN ISO 3834-2, we undertake connecting and overlay welding for new production and repairs to ball valves and wellheads. Decisive for the success of our solutions and innovations is the know-how and the expertise of our employees who in some cases have been with Hartmann for decades. The scope, the completeness and the transparency of our product-accompanying documentation of all components is held in high regard by our customers.
100% TESTING
In order to guarantee the required gas leak-tightness, each and every valve and every wellhead component is tested at Hartmann. This takes place in due consideration of the highest quality and test procedures in accordance with the applicable standards and customer specifications. In this regard, our quality assurance system encompasses not only proven procedures and processes but also ensures seamless material traceability. The respective quality and test plans are attuned to our customers. The supervision of approvals is possible at any time.
INSTALLATION OF WELLHEAD EQUIPMENT
Upon request our service personnel is pleased to offer support in geothermal projects at any time: For extensive jobs such as installation or modification of wellheads, for installation and removal of valves in plants, for assistance during revisions or for maintenance of our products – our expert team will be available. For all service works appropriate tools are used and support by our engineering department is ensured as needed.
In case of particular wellhead services special equipment such as PBVs (Back-Pressure Valves) or TWCVs (Two-Way-Check-Valves) is available on rental basis and can be installed and removed by us upon request.
Our experienced and competent service staff is trained in accordance with SCC (Safety Certificate Contractors), as well as with respect to first aid and to customer-specific safety trainings and instructions.
Also in the service sector, our customers benefit from decades of experience in the oil and gas industry. Not only do we continuously incorporate the findings and feedback into our product development, but the know-how of our service team is also constantly growing.
YOUR BENEFITS
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24/7 availability of our service team
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Certified personnel
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Rental equipment and tools
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Spare part and operations support
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In-depth product knowledge
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Components designed for fast and easy installation
OPERATION & MAINTENANCE
In order to extend the life cycle of our wellheads and ball valves we are offering inspection services, original spare parts as well as a variety of maintenance and repair options. Our service team also supports at pump exchanges with wellhead related works.
SPARE PARTS
Hartmann Valves supplies original spare parts upon request. With every spare part request or repair job we give advice on the latest developments and product upgrades. The use of original spare parts ensures the best performance and durability of our products.
PREVENTIVE MAINTENANCE
Since the wellhead is such an important part of the well barrier, we recommend performing periodic inspections to make sure the wellhead components are in an adequate condition. Various challenges in a production life of a well are influencing the wellhead condition. Regular documented checks are minimizing the risk of safety hazards and downtime. We offer inspection plans and framework contracts.
Obviously a leaking seal, flange connection or valve would have a dramatic impact on the integrity and could become a major safety hazard. Events like this need to be avoided and regular documented checks are minimizing the risk
MODIFICATION AND REPAIR JOBS
The majority of our repair works are overhaul jobs of equipment being installed for decades and implementing modifications requested by our customers. A typical example is the addition of an extra feedthrough into our hanger/pack-off combination. With our strong engineering group we worked out lots of tailor-made solutions for our customers. For example for modernisation of existing geothermal plants we design tailor-made wellheads. Adapted to the existing piping system this wellhead provides higher safety standards and automatisation level with a fail-safeclose actuator.


RENTAL EQUIPMENT
We rent tools and service equipment for every stage of the life cycle of a well. With our strong service tool fleet we are not only well prepared for installation and maintenance services but also for other challenges arising on-site. BPVs/TWCVs, a high-pressure lubricator, hydraulic torque wrenches, external compressed air casing cutter, pressure test equipment and much more are available for customer-specific needs.