GARDNER DENVER PZL-B 7500PSI GD HD Pump

The hydraulic end module is the heart of the mud pump and directly withstands the tremendous pressure and flushing of the drilling fluid. For this purpose, the highest grade forged high-strength alloy steels, 35CrMo and 40CrMnMo, were selected as the only materials for their manufacture.

Science of durability-Autofrettage process analysis

To realize the full potential of the material, each HD module must undergo our proprietary Autofrettage process 14. Far from being a normal heat treatment, this is a sophisticated cold work hardening technique. During this process, the module's internal high-pressure chamber will withstand an ultra-high hydraulic pressure well in excess of its 7500 PSI operating pressure. This results in plastic deformation of the inner wall material of the cavity, while the outer wall remains within the elastic deformation range. When the ultra-high pressure is unloaded, the rebound of the outer wall will produce a strong compressive stress on the inner wall which has been permanently deformed. This preset and beneficial residual compressive stress field, like a built-in"Stress shield", can effectively offset the tensile stress generated by the pump during operation, thus greatly inhibiting the initiation and propagation of fatigue cracks, the fatigue life of the module is raised to a new height.

This complete quality assurance system-based on superior forged materials, with self-reinforcing processes to build an active defense layer, the Ultimate API 7K standard and non-destructive testing ensures that our hydraulic end modules are not only robust, but also have a predictable, ultra-long service life, directly reduces operational risk and total cost of ownership for our customers.

Integrity Assurance-api 7K and NDT protocol

Our commitment to safety and quality is absolute. Each factory hydraulic end module is fully compliant with the API 7K specification, which is globally recognized as the highest standard for drilling equipment. In addition, we perform a rigorous non-destructive testing (NDT) procedure to thoroughly inspect each module to ensure that there are no internal defects that could affect performance. We adhere to the"No welding" principle, welding repair on any module is not allowed to ensure the original integrity of the material and performance consistency.

PZL-B 7500 PSI performance matrix

The table below clearly shows the pressure and displacement capacities of the pump with different liner sizes. The data is based on 1600HP input power and 115spm (strokes per minute) rated conditions, for your work planning to provide a precise basis.

Job scenario analysis

This performance matrix reveals a crucial balance in a drilling operation: pressure versus displacement. The essence of the PZL-B design is its unparalleled flexibility, enabling operators to optimize hydraulic parameters by replacing the cylinder liner without replacing the pump body, depending on the needs of different well sections.

High pressure drilling: extremely high pump pressure is required to drive the bit when drilling hard formations or performing deep well operations. With a 5-inch liner, PZL-B delivers a maximum pressure of 7500 PSI while maintaining a displacement of 323 GPM, ensuring efficient rock breaking and drilling.

High displacement cleaning operation: when drilling in large size hole or horizontal section, higher displacement is needed to effectively carry cuttings and clean bottom hole. A 63⁄4 inch liner can be used, and the pump can deliver a displacement of up to 587.7 GPM while still maintaining a solid working pressure of 4200 PSI to ensure a clean and stable wellbore.

Power requirements

The pump is rated for maximum input power of 1600 HP, rated speed of 115SPM. This power requirement is perfectly matched with the industry standard rig traction motor, ensuring seamless integration and efficient transmission of the power system.

Summary of component material and process specifications

For quick reference, the following table summarizes the material and process details of key perishable parts.

Beyond initial cost-calculating total cost of ownership (TCO)

When making investment decisions about drilling rigs, savvy operators look beyond the purchase price. We encourage our customers to evaluate our products from a total cost of ownership (TCO) perspective. The formula for TCO is: TCO = initial cost + operating cost + maintenance cost + downtime cost-residual value.

The value of reliability

By choosing Gardner Denver PZL-B 7500 PSI GD HD fluid end, you gain value far beyond the device itself:

Longer uptime: the extended service life of all core components means more time for drilling and less time for maintenance.

Higher Safety: strict compliance with API 7K standards, the use of robust materials, and integrated pressure safety valve and other safety devices to minimize the risk of catastrophic failure.

Predictable maintenance cycles: the durability and consistency of OEM components make maintenance planning more reliable and predictable, helping you avoid frequent unplanned downtime.

Global support and on-Demand spare Parts: our commitment is underpinned by Gardner Denver's Global Service Network and the innovative Parts on Demand program, ensure you have timely access to in-house spare parts and expert support from anywhere in the world.

In the challenging world of high-pressure drilling, equipment is not a consumable but a strategic asset. Gardner Denver PZL-B 7500 PSI GD HD hydraulic end is designed to meet the extreme performance requirements of your job and the long-term reliability on which your profitability depends.

Please contact our technical sales team immediately to configure a pumping system that will be the cornerstone of your high-pressure drilling project.

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