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  • High-Density Polyethylene (HDPE) Pipe Fittings Restraint Coupling for Secure Connections
  • High-Density Polyethylene (HDPE) Pipe Fittings Restraint Coupling for Secure Connections
  • High-Density Polyethylene (HDPE) Pipe Fittings Restraint Coupling for Secure Connections
  • High-Density Polyethylene (HDPE) Pipe Fittings Restraint Coupling for Secure Connections
High-Density Polyethylene (HDPE) Pipe Fittings Restraint Coupling for Secure Connections

High-Density Polyethylene (HDPE) Pipe Fittings Restraint Coupling for Secure Connections

  • 1 - 9 Tons
    $1,700
  • >= 10 Tons
    $1,600
View product details

High-Density Polyethylene (HDPE) Pipe Fittings Restraint Coupling for Secure Connections

Product overview

Core functionalities

Applicable scenarios

Unique advantages

  • Connection and Restriction: Designed to securely connect HDPE pipes using flange interfaces, preventing movement and ensuring stability under fluid pressure.
  • Leak Prevention: Features an internal O-ring seal made of flexible material (e.g., synthetic rubber) to guarantee watertight joints in plumbing or industrial systems.
  • Adjustable Installation: Equipped with four bolts and nuts on each flange, enabling precise alignment and secure attachment to pipes of varying sizes or angles.

Key features

  • 1. Corrosion-Resistant Material Technology

    • With a blue corrosion-resistant metallic coating and HDPE compatibility, protect against chemical exposure and harsh environmental conditions. The steel alloy body with protective coating ensures durability, while HDPE material integration enhances resistance to corrosion compared to traditional uncoated couplings*.

  • 2. Adjustable Interactive Design

    • With flange bolts and nuts for precise alignment, achieve secure, customizable connections for diverse pipe sizes and applications. The adjustable mechanism allows easy installation and adaptability, outperforming rigid, non-adjustable couplings*.

  • 3. High-Performance Certification Standards

    • With ISO 9001 certification and ISO-standard compliance, ensure reliable performance under high pressure and rigorous industrial use. Meets global quality benchmarks, surpassing uncertified alternatives in durability and safety*.

  • 4. Industrial-Grade Scenario Solutions

    • Designed for continuous operation in plumbing and industrial systems, this coupling minimizes maintenance needs and prevents leaks via its robust O-ring seal. Ideal for heavy-duty scenarios requiring 24/7 reliability, unlike consumer-grade couplings*.

  • 5. Leak-Proof Sealing Technology

    • With an internal synthetic seal (e.g., O-ring), eliminate leaks even in high-pressure environments. The ribbed inner surface reduces friction and wear, extending lifespan compared to smooth-surface alternatives*.

Product details

High-Density Polyethylene (HDPE) Pipe Fittings Restraint Coupling for Secure Connections

The Restraint Coupling for HDPE Pipes is a robust, adjustable component designed for secure pipe connections in industrial and plumbing applications. Crafted from durable iron and HDPE materials with a corrosion-resistant blue coating, it features flanged ends, adjustable bolts, and a flexible internal seal to ensure leak-proof performance.

Technical specifications

FeatureSpecificationBenefit
MaterialIron + HDPE compositeEnhanced durability and corrosion resistance
Connection TypeFlangedSecure attachment to pipes or components
ShapeRound, equal diameterUniversal compatibility with standard pipes
CertificationISO 9001 quality standardGuaranteed reliability and compliance
Sealing MechanismBlack flexible O-ringLeak-proof integrity under pressure
Adjustability4-bolt system with nuts and washersCustomizable tightness for precise fits
CoatingBlue protective paintCorrosion resistance in harsh environments
Internal DesignRibbed inner surfaceReduced friction and wear resistance
ManufacturingPrecision castingSuperior structural integrity

Customization guide

  • Adjustable bolts: Modify tightness to accommodate varying pipe diameters or uneven surfaces.
  • Replaceable O-ring: Swap with materials like EPDM or Viton for chemical resistance in specialized environments.
  • Custom coating: Choose from anti-corrosive or heat-resistant coatings based on application needs.

Get inspired

With its flanged design and adjustable bolts, this coupling is ideal for connecting HDPE pipes in water distribution systems, industrial pipelines, or construction projects. The corrosion-resistant coating and durable materials ensure longevity even in aggressive environments.

Choose your model

ParameterBase ModelAdvanced ModelPro Model
Pressure Rating10 bar+15% (11.5 bar)*+30% (13 bar)*
Corrosion ResistanceStandard coatingEnhanced epoxy coatingPremium ceramic coating
Seal DurabilityStandard O-ringReinforced O-ringTriple-layer seal
Bolt Count4 bolts/side6 bolts/side8 bolts/side

Supplier's note

  1. Technical Breakthroughs:

    • The Pro Model’s triple-layer seal (vs. standard O-ring) reduces leakage risk by 90% in high-pressure scenarios.
    • The Advanced Model’s reinforced bolts increase load-bearing capacity by 20% compared to industry benchmarks.
    • The ceramic coating on Pro Models offers 5x longer lifespan in corrosive chemical environments.

  2. Version Selection Guidance:

    • Base Model: Ideal for standard water systems or low-pressure applications where cost efficiency is prioritized.
    • Advanced Model: Suited for industrial plants requiring moderate pressure resistance and durability.
    • Pro Model: Recommended for harsh environments (e.g., chemical processing, offshore pipelines) where extreme durability and pressure tolerance are critical. With its ceramic coating and triple-layer seal, it ensures zero leakage even under prolonged exposure to corrosive fluids.

Frequently asked questions

  • Which restraint coupling is best for HDPE pipes in industrial water systems?

  • How do I clean and maintain the bolts on a restraint coupling for HDPE pipes?

  • What’s the difference between HDPE and PVC restraint couplings for water pipes?

  • Can this restraint coupling be customized for non-standard pipe sizes?

  • Is this restraint coupling FDA-approved for potable water systems?

  • How does the restraint coupling prevent leaks in high-pressure water lines?

  • What makes this restraint coupling suitable for outdoor water pipe installations?

  • Does the restraint coupling require special tools for installation?

Product comparison

CategoryUsage ScenariosCharacteristicsAdvantagesDisadvantages
Restraint Coupling (Our Advanced)High-pressure industrial systemsHDPE material (ISO 10508 compliant), flanged with 4 bolts (ASTM A325), 160 PSI (▲ from 120 PSI Base, ASME B16.5)▲ 33% higher pressure tolerance (160 PSI), corrosion-resistant (ASTM D1693), lightweight (2.5 kg)Requires专业安装, higher cost compared to Base
Restraint Coupling (Our Base)Medium-pressure industrial systemsCast iron (ASTM A48 Class 30), 120 PSI (ASME B16.3), 4.0 kgCost-effective, durable materialHeavier (4.0 kg), less corrosion resistance, lower pressure capacity (120 PSI)
Compression Coupling (Industry Standard)Residential plumbingBrass body (Copper Development Association CDA 260), 80 PSI (ASME A112.18.1)Easy installation, compact designLimited to 80 PSI (lower than industrial standards), not for harsh chemicals
Push-Fit Coupling (Industry Standard)Low-pressure irrigationPVC material (ASTM D1784), 40 PSIQuick installation, lightweightOnly for 40 PSI systems, UV exposure may degrade PVC over time
Flanged Steel Coupling (Industry Standard)Industrial pipelinesSteel flanges (ISO 7005), 200 PSIHighest pressure rating (▲200 PSI), durable for heavy-duty useBulky, requires专业 tools for installation, costly maintenance
Union Coupling (Industry Standard)Systems requiring easy maintenanceStainless steel (ASTM A182), 150 PSIEasy disassembly for maintenance, corrosion resistanceHigher cost, slightly lower pressure rating (150 PSI) compared to steel variants

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