DN150 PN63 High Pressure Mining Rubber Compensator – Custom Hand-Wrapped EPDM Joint with Control Rods

SKU: KXT-DN150-EPDM-PN63-Caron-Steel

Model TypeWCR-Hand Built Type
Size (DN)DN150 (6 inch)
Pressure RatingPN63 (63 bar)
MaterialEPDM Rubber
Flange MaterialGalvanized Carbon Steel
Temperature Range-20ยฐC to +120ยฐC
Working MediumMine Drainage Water/Slurry & Abrasive Media
Connection TypeFlange Connection
LengthCustom 300mm

Product Description & Specifications

Overview

Theย DN150 PN63 High-Pressure Rubber Compensatorย is a premium, custom-engineered solution specificallyย Engineered for High-Pressure Mine Drainage Systems. Designed to withstand extreme operational stresses in deep-well mining, this robust expansion joint features a specializedย hand-built anti-winding structure that prevents structural deformation under intense hydraulic loads.
Rated for a working pressure ofย 63 Bar (6.3 MPa), it provides essential vibration isolation and thermal compensation while ensuring the absolute safety of critical underground infrastructure. Equipped with high-tensileย integrated control rods, this EPDM-based compensator effectively manages massive pressure thrust, making it the definitive choice for mines requiring zero-downtime reliability in their water discharge networks.

Key Features

  • Ultra-High Pressure Rating (PN63/6.3MPa):ย Specifically reinforced to handle extreme 63-bar pressure, providing a superior safety margin for high-lift mine drainage where standard joints fail.
  • Custom Anti-Winding Reinforcement:ย Features a proprietary hand-layered internal structure that prevents “ballooning” and winding fatigue, ensuring long-term dimensional stability under continuous high-pressure cycles.
  • Premium EPDM Elastomer:ย Formulated for high-density and chemical resistance, the EPDM body offers excellent durability against corrosive mine water, aging, and environmental weathering.
  • Integrated Thrust Control Units (Tie Rods):ย Equipped with heavy-duty carbon steel or stainless steelย control rodsย that restrain the expansion joint, preventing over-extension and protecting adjacent pumps and valves from hydraulic shock.
  • Superior Vibration & Noise Damping:ย Effectively isolates mechanical tremors from high-lift centrifugal pumps, reducing fatigue-related cracks in the piping system.
  • Hand-Built WCR Craftsmanship:ย Each unit is precision-manufactured using a specialized winding process, allowing for extra wall thickness and reinforced fabric layers tailored for mining environments.

Applications

This rubber compensator is ideal for:

  • Deep-Well Mine Drainage:ย The primary connection for vertical water discharge lines in coal and metal mines requiring high-lift pumping.
  • High-Pressure Slurry Transport:ย Conveying abrasive mineral slurries or tailings where both high pressure and wear resistance are required.
  • Underground Firefighting Networks:ย Ensuring the integrity of high-pressure emergency water supply lines in mining galleries.
  • Pump Station Vibration Isolation:ย Connecting high-pressure multi-stage pumps to main headers to absorb operational shocks and water hammer.
  • Hydraulic Backfilling Systems: Used in pipelines that transport sand or paste backfill materials under high pressure into mine cavities.

Technical Specifications

Parameter Value
Nominal DiameterDN150 (6 inch)
Working PressurePN63 (6.3 MPa)
Test Pressure9.5 MPa
Temperature Range-20ยฐC to +120ยฐC
Axial Displacement10 mm
Lateral Displacement6 mm
Angular Displacement15ยฐ
Flange StandardGB/T 9119

โ“ Frequently Asked Questions (Applications)

โ“

Can this KXT DN25 EPDM compensator be used for hot water circulation in HVAC?

Absolutely. EPDM material is specifically designed for hot water, steam, and HVAC systems up to 115ยฐC. The SS304 flange ensures corrosion resistance in humid environments. Itโ€™s a perfect fit for pump connectors and chiller installations.
โ“

Is it suitable for food-grade or potable water applications?

Yes, EPDM complies with FDA and WRAS standards for potable water. The SS304 flange also resists contamination. For specific food-grade certifications, please contact us for detailed documentation.
โ“

Whatโ€™s the maximum working pressure for DN25 with PN10 rating?

PN10 means the compensator is rated for 10 bar (1.0 MPa) working pressure at ambient temperature. For pressure spikes or pulsating conditions, we recommend staying within 80% of the rating for long service life.
โ“

Can it compensate for misalignment during pump installation?

Yes. This rubber compensator allows axial, lateral, and angular movement (axial ยฑ10mm, lateral ยฑ6mm, angular 15ยฐ). It effectively absorbs vibration and corrects minor alignment issues between pump and pipeline.