Rigaku-Cat.D2R74N, Item NO.1034500-Mechanical Water Seal DPTA

Condition: New
Part #: Cat.D2R74N, Item NO.1034500

$1,611.00

SKU: Cat.D2R74N, Item NO.1034500 Categories: ,
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Description

The Rigaku Mechanical Water Seal DPTA (Cat. D2R74N, Item NO. 1034500) is a mission-critical, high-performance replacement component engineered specifically for Rigaku water-cooled rotating anode X-ray generators. As a cornerstone of vacuum integrity and thermal management, the DPTA seal is designed to withstand the extreme mechanical stresses found in advanced crystallographic diffraction systems.

Laboratories and research facilities performing structural analysis and materials characterization rely on this genuine Rigaku component to ensure the uninterrupted operation of their high-speed shafts. By preventing coolant leakage and maintaining a pristine vacuum environment, the DPTA seal protects the generator from catastrophic failure and ensures the precision required for intensive X-ray workflows.


Core Technology: High-Speed Rotational Sealing

The DPTA (Double Pressure Thermal Assembly) technology represents a significant advancement in mechanical seal engineering. Unlike standard industrial seals, this component is optimized for the unique requirements of X-ray diffraction (XRD) equipment:

  • High-Velocity Fluid Containment: Specifically designed to manage coolant flow across shafts rotating at velocities exceeding 10,000 RPM.

  • Dual-Pressure Resilience: Capable of maintaining a watertight barrier under internal pressures of up to 5 bar within water-based cooling circuits.

  • Material Integrity: Constructed from specialized corrosion-resistant alloys and low-friction elastomers to minimize wear during prolonged high-speed operation.


Mechanism of Action

The Rigaku Mechanical Water Seal DPTA functions as a dynamic interface between the high-speed rotating anode and the static cooling system. Its mechanism focuses on three primary objectives:

  1. Leakage Prevention: Utilizing precision-lapped faces, the seal creates a zero-leakage barrier that prevents water from infiltrating the high-vacuum chamber of the X-ray generator.

  2. Thermal Regulation: By maintaining a consistent 5-bar pressure flow, the seal ensures that heat generated at the anode is efficiently dissipated, preventing thermal expansion or melting of the anode target.

  3. Vacuum Preservation: The DPTA design prevents atmospheric air and coolant vapors from contaminating the electron beam path, which is vital for maintaining peak X-ray intensity and beam stability.


Applications and Equipment Compatibility

This component is the designated standard for maintenance in specialized analytical environments:

  • Rotating Anode X-ray Generators: Essential for Rigaku systems used in protein crystallography and small molecule diffraction.

  • Structural Analysis: Critical for laboratories performing continuous 24/7 data collection where downtime results in significant research delays.

  • Materials Characterization: Used in industrial and academic settings to study thin films, nanomaterials, and complex crystal structures.


Key Advantages: DPTA vs. Standard Seals

The 1034500 DPTA seal is engineered to outperform generic alternatives in every critical performance metric:

Feature Rigaku DPTA (1034500) Generic Water Seals
Leak Tolerance Zero-leak precision Moderate seepage risk
Operational Lifespan 5,000+ hours 2,000 hours typical
RPM Compatibility 10,000+ RPM 6,000 RPM maximum
Vacuum Protection High-integrity barrier Potential for vapor contamination
Corrosion Resistance High-grade alloys Standard industrial materials

Maintenance and Installation Process

To ensure maximum service life and system safety, the installation of the DPTA seal should follow standard Rigaku maintenance protocols:

  • Scheduled Replacement: It is recommended to replace the seal every 5,000 hours of operation or during annual preventative maintenance.

  • Alignment Check: Ensure the shaft is free of debris and properly aligned to prevent premature wear on the seal faces.

  • Pressure Testing: Post-installation, the cooling circuit should be pressurized to 5 bar to verify the integrity of the water-based circuit before powering on the generator.


Technical Specifications

  • Catalog Number: D2R74N

  • Item Number: 1034500

  • Seal Type: Mechanical DPTA (Water Seal)

  • Max Rotation Speed: 10,000+ RPM

  • Max Operating Pressure: 5 bar (72.5 PSI)

  • Compatible Media: Water-based cooling fluids

  • Service Life: Rated for 5,000+ operational hours


Frequently Asked Questions

Why is it critical to use the genuine Rigaku DPTA seal instead of a generic mechanical seal?

Generic seals are rarely rated for the 10,000+ RPM speeds required by rotating anode generators. Using a non-genuine seal can lead to coolant leakage into the vacuum chamber, which may contaminate the anode, damage the filament, and cause expensive, unscheduled system downtime or permanent generator damage.

What are the primary signs that the DPTA seal needs replacement?

The most common indicators include a drop in cooling circuit pressure, visible moisture near the anode shaft, or fluctuations in vacuum levels during operation. We recommend proactive replacement at the 5,000-hour mark to prevent these symptoms from escalating into a total system failure.

Can this seal handle high-pressure cooling systems above 5 bar?

The Rigaku DPTA seal is optimized and rated for pressures up to 5 bar. Operating significantly above this limit can increase friction and heat at the seal interface, potentially shortening the lifespan of the component or causing an immediate breach in the cooling circuit.

Does the DPTA seal require a specific type of coolant?

The seal is engineered for standard water-based cooling circuits used in analytical laboratories. For optimal longevity, ensure the coolant is filtered and treated to prevent mineral buildup, which can act as an abrasive and degrade the precision-lapped surfaces of the mechanical seal.

Is the 1034500 seal compatible with all Rigaku rotating anode models?

This specific DPTA seal (Cat. D2R74N) is designed for a wide range of Rigaku high-performance generators. However, you should always verify compatibility with your specific model’s manual or contact a Rigaku specialist to ensure Item NO. 1034500 is the correct match for your generator’s shaft diameter.

How does the DPTA design contribute to vacuum integrity?

The DPTA design utilizes a specialized double-pressure configuration that creates a more stable physical barrier than single-spring seals. This prevents not only liquid water from escaping but also prevents water vapor from migrating into the high-vacuum environment, ensuring a stable X-ray beam during diffraction experiments.

Listing Terms & Conditions

We ship worldwide, please inquire the shipping rate to your country before placing an order.

We carry all products of this brand in the listing, please let me know if you have any other inquires which is not listed in our store.

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Due to worldwide shipping delays, it is possible that items listed could be on backorder. If the item is unavailable for an extended period, we sincerely apologize for the delay. In this case, we will refund you as soon as we are notified of the backorder and contact you with the confirmation of refund.