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Parker 2340N Polyflex Hose: The Powerhouse of Subsea Hydraulic Systems

In the high-stakes world of offshore exploration and subsea operations, hydraulic performance and durability are non-negotiable. The Parker 2340N Polyflex hose stands as a trusted solution in these demanding environments, engineered specifically for ultra-deep, high-pressure applications.

This blog explores how the 2340N model redefines reliability in subsea hydraulic systems, the unique advantages it offers, and why it’s a go-to choice for hydrostatic pressure testing and critical fluid transfer applications.



Understanding the Parker Polyflex 2340N Hose

Parker Polyflex is a leading name in the development of high-performance thermoplastic hose solutions. Designed with a strong focus on safety and durability, the 2340N Polyflex hose is specifically engineered for ultra high pressure subsea applications where standard hoses fail.

It is built to handle extreme environmental factors, offering seamless operation in applications such as:

  • Subsea hydraulic control lines

  • Offshore oil & gas well intervention

  • Hydraulic actuation systems

  • Hydrostatic pressure testing equipment

Key Features That Set the 2340N Hose Apart

Here’s why Parker’s 2340N hose is known as the powerhouse of subsea hydraulic systems:

1. Ultra High Pressure Capabilities

The 2340N hose is part of Parker’s ultra high pressure thermoplastic hoses line, with working pressures up to 58,000 psi (4000 bar). This makes it ideal for demanding applications where maximum pressure tolerance is critical.

2. Thermoplastic Strength with Steel Reinforcement

This hose features multiple layers of thermoplastic construction with high-tensile steel wire reinforcement. The result is a lightweight, flexible hose that performs with the strength of steel without compromising maneuverability.

3. Superior Resistance to Chemicals and Abrasion

The Parker 2340N is constructed with a thermoplastic core and cover, making it highly resistant to chemical degradation and surface wear. This ensures long service life even when exposed to harsh subsea chemicals or rugged environments.

4. Minimal Volumetric Expansion

One of the often-overlooked yet crucial factors in hydraulic hose design is volumetric expansion. The 2340N hose offers minimal internal expansion, which means more accurate fluid delivery—essential for subsea hydraulic control systems.

The Role of Parker Polyflex in Hydrostatic Pressure Testing

Hydrostatic pressure testing is a critical process in offshore and industrial systems to ensure pipeline or component integrity. The Parker 2340N Polyflex hose excels in these tests by:

  • Handling extremely high pressures during testing cycles

  • Offering flexibility and light weight, reducing installation complexity

  • Minimizing risk of leaks and burst failures under extreme stress

Using the right hose in hydrostatic pressure testing not only ensures safety but also reduces downtime during test procedures. The 2340N meets global safety standards and is compatible with a wide range of testing fluids.

Why Choose Parker Polyflex Hoses for Subsea Operations?

The entire Parker Polyflex range is engineered with mission-critical performance in mind. Here's why the 2340N, in particular, is a standout:

  • Global Certification: Meets or exceeds international specifications including API 17E, DNV, and ISO standards.

  • High Performance in Deep Waters: Designed to perform under intense pressures and temperatures of subsea environments.

  • Ease of Handling: Lighter than comparable steel hoses, making installation and transport easier.

  • Customizable Lengths & Fittings: Available in multiple configurations to suit specific offshore equipment or ROV systems.

Applications in the Real World

The Parker 2340N hose isn’t just a spec-sheet marvel—it’s proven in real-world applications such as:

  • Subsea Control Units (SCUs)

  • Blowout Preventer (BOP) systems

  • Hydraulic Workover Units (HWUs)

  • Remotely Operated Vehicles (ROVs)

  • Underwater tooling and drilling equipment

In each of these systems, reliability is a must, and the 2340N delivers under pressure—literally.

Final Thoughts

In subsea hydraulic systems, where a single failure can halt operations and cost millions, choosing the right hose is a strategic decision. The Parker 2340N Polyflex hose is more than a component—it’s a critical piece of the system that ensures safety, durability, and performance.

Whether you're conducting hydrostatic pressure testing, building high-pressure subsea control systems, or working with ultra high pressure thermoplastic hoses, the 2340N offers unmatched reliability in the most demanding environments.

Choose Parker Polyflex. Choose Confidence.

Looking for certified distributors or custom hose assemblies?
Contact SG Dynamics – your trusted partner for Parker Polyflex products and support.

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