DR006001220-Sealing-Ring-NS6-BHDT-spare-parts.1910.3-1

Short Description:

Used for BFT/BHDT pump.
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Details

Product Name: Sealing Ring / Backup Ring (Part No. DR006001220)

Description:
This component is a Sealing Ring, often used as a Backup Ring (Back-up Ring) or support ring in high-pressure hydraulic or waterjet systems [citation:1]. The designation "NS6" typically refers to a standardized dimension or profile class [citation:4].

Manufactured from a rigid, wear-resistant material (such as PTFE, PEEK, or specialized polymer), it is designed to be installed adjacent to an O-ring or elastomeric seal. Its primary function is to provide anti-extrusion support, preventing the softer seal material from being forced into the clearance gap under extreme pressure [citation:1]. This component is specifically engineered for static sealing applications in BHDT high-pressure intensifier pumps.

Applications:

Provides anti-extrusion support for O-rings in high-pressure static sealing applications.
Installed in the sealing head, check valve assemblies, or cylinder interfaces of BHDT waterjet intensifier pumps.
Suitable for ultra-high pressure systems operating at 60,000-94,000 PSI (approximately 4,137-6,480 bar) [citation:4].

Features:

Rigid Material: Made from high-strength polymer or metal to withstand extrusion forces.
Anti-Extrusion Function: Fills the radial gap to protect the primary O-ring from pressure damage [citation:1].
Precision Dimensions: Machined to exact tolerances for a secure fit in the designated groove.
BHDT OEM Specification: Directly compatible with BHDT high-pressure components.

Maintenance:

Failure Diagnosis (When to Replace):

External Water Leakage: Visible leakage from the sealed interface often indicates primary O-ring failure, requiring replacement of both the O-ring and this backup ring.
Pressure Drop: Inability to maintain system pressure may be caused by extrusion damage to the O-ring due to a worn or missing backup ring.
Visible Damage: During disassembly, inspect the ring for cracking, flattening, deformation, or splitting. Any damage warrants immediate replacement [citation:1].

Inspection and Replacement Guidelines:

Full Depressurization (Critical): Before any maintenance, fully depressurize the waterjet system and follow lockout/tagout procedures.
Single-Use Component: This is a consumable part. Always replace it together with the adjacent O-ring [citation:1]. Do not reuse old rings.
Clean Installation: Clean the seal groove thoroughly before installing the new ring.
Lubrication: Apply a thin layer of high-pressure grease to the backup ring and O-ring during assembly to prevent pinching [citation:1].

Cross-Reference Information: