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Pipe Fittings
  • New Design Union Type Flexible Pipe Fittings Screws DIN Standard Threaded Rubber Expansion Joint
  • New Design Union Type Flexible Pipe Fittings Screws DIN Standard Threaded Rubber Expansion Joint
  • New Design Union Type Flexible Pipe Fittings Screws DIN Standard Threaded Rubber Expansion Joint
  • New Design Union Type Flexible Pipe Fittings Screws DIN Standard Threaded Rubber Expansion Joint
  • New Design Union Type Flexible Pipe Fittings Screws DIN Standard Threaded Rubber Expansion Joint
  • New Design Union Type Flexible Pipe Fittings Screws DIN Standard Threaded Rubber Expansion Joint
New Design Union Type Flexible Pipe Fittings Screws DIN Standard Threaded Rubber Expansion Joint

New Design Union Type Flexible Pipe Fittings Screws DIN Standard Threaded Rubber Expansion Joint

  • 30 - 99 Pieces
    $15
  • 100 - 999 Pieces
    $13.40
  • >= 1000 Pieces
    $12

Customization:

Customized logo（Min.Order: 100 pieces）
Customized packaging（Min.Order: 100 pieces）
Graphic customization（Min.Order: 100 pieces）
View product details

New Design Union Type Flexible Pipe Fittings Screws DIN Standard Threaded Rubber Expansion Joint

Product overview

Core functionalities

Applicable scenarios

Unique advantages

  • Flexible Connection: Designed to connect pipes while accommodating movement caused by thermal expansion/contraction, pressure fluctuations, or structural shifts. The neoprene rubber core ensures seamless flexibility and vibration damping.
  • Pressure & Temperature Resistance: Built to handle PN16 pressure ratings and high-temperature environments, ensuring reliability in demanding plumbing, HVAC, and industrial systems.

Key features

  • 1. Corrosion-Resistant Material Technology

    • With corrosion-resistant galvanized steel and chemical-resistant neoprene rubber, you can ensure durability in harsh environments, outlasting standard fittings by up to 30%* in high-pressure or chemically exposed settings.

  • 2. User-Friendly Interactive Design

    • With hexagonal metal ends and standardized threaded connections, you can achieve secure, tool-friendly installations—simplifying assembly compared to non-hexagonal fittings* while maintaining compatibility with global plumbing systems.

  • 3. High-Performance Pressure Handling

    • With a PN16 pressure rating, you can handle systems up to 16 bars, exceeding standard residential requirements* and supporting robust industrial applications without compromising structural integrity.

  • 4. Adaptive Scenario Solutions

    • In industrial settings, the flexible neoprene core allows for movement caused by temperature fluctuations or pressure shifts, preventing pipe damage during expansion/contraction*—ideal for HVAC and plumbing systems requiring dynamic flexibility.

  • 5. Certified Safety and Compliance

    • With RoHS, TUV, and CE certifications, you can ensure compliance with international safety and environmental standards*, meeting stringent regulations for commercial and industrial use.

Product details

New Design Union Type Flexible Pipe Fittings Screws DIN Standard Threaded Rubber Expansion Joint

The New Design Union Type Flexible Pipe Fittings are engineered to provide durable, flexible connections for pipes in plumbing, HVAC, and industrial systems. Constructed with galvanized steel or stainless steel and neoprene rubber, these fittings accommodate thermal expansion, pressure fluctuations, and movement while ensuring leak-proof performance. Certified to RoHS, TUV, and CE standards, they offer corrosion resistance and compliance with global regulations.

Technical specifications

FeatureSpecificationApplication Scenario
MaterialGalvanized steel/stainless steel core with neoprene rubber flexible sectionCorrosive or high-pressure environments (e.g., chemical plants)
Thread StandardDIN-compliant threaded endsStandard plumbing and industrial pipe systems
Pressure RatingPN16High-pressure pipelines in HVAC or industrial setups
ConstructionForged metal components for structural integrityHeavy-duty applications requiring long-term reliability
FlexibilityAccordion-style neoprene designThermal expansion/contraction in heating systems
CertificationsRoHS, TUV, CE, JIS, ISO, ANSI, DINGlobal compliance for industrial and commercial use

Customization guide

Adjustable parameters include:

  • Size/Diameter: Customize to fit pipe systems (e.g., 1"–12" ID).
  • Material: Choose stainless steel for extreme corrosion resistance or neoprene variants for chemical resistance.
  • Thread Type: Modify thread pitch or standard (e.g., NPT, BSP) for system compatibility.

Get inspired

With our flexible pipe fittings, you can create resilient pipe networks that adapt to movement and pressure changes. The forged steel and neoprene combination ensures durability in harsh environments, while DIN-standard threads simplify installation. Whether for a commercial HVAC system or an industrial chemical plant, these fittings provide reliable performance.

Choose your model

ParameterBase ModelAdvanced ModelPro Model
MaterialGalvanized steel + neopreneStainless steel + neopreneStainless steel + reinforced neoprene*
Pressure RatingPN16PN25 (+56% capacity)PN40 (+150% over industry avg)
CertificationsRoHS, CERoHS, TUV, CERoHS, TUV, CE, ANSI, ISO
Chemical ResistanceStandard oils/alkalisCorrosive chemicalsHarsh acids/alkalis

Supplier's note

  1. Technical Breakthroughs:

    • Forged Construction: Enhanced strength reduces failure risk in high-stress scenarios.
    • Neoprene Flexibility: 30% greater expansion capability than PVC alternatives, enabling use in seismic zones.
    • Multi-Certification Compliance: Simplifies global deployment across industries.

  2. Optimal Version Selection:

    • Base Model: Ideal for standard residential/commercial plumbing (e.g., HVAC systems requiring PN16 pressure).
    • Advanced Model: Suited for corrosive environments (e.g., seawater pipelines) with its stainless steel core.
    • Pro Model: Engineers choose this for extreme conditions—its PN40 rating and reinforced neoprene enable safe handling of high-pressure chemical transfers.

Example benefit: "With the Pro Model’s reinforced neoprene, you can safely manage pipelines carrying aggressive chemicals, reducing downtime by 40% compared to standard fittings."

Frequently asked questions

  • Which metal pipe fitting model suits high-pressure industrial applications (PN16 rated)?

  • How to clean the neoprene rubber section of a threaded pipe coupling?

  • Steel vs. Stainless Steel Expansion Joints: Which is better for corrosive environments?

  • Can DIN standard expansion joints be customized for non-standard pipe diameters?

  • Is the neoprene material in flexible couplings FDA-approved for food-grade plumbing?

  • What certifications ensure safety for high-temperature HVAC pipe systems?

  • Are union-type fittings compatible with European plumbing systems?

  • How does the forged construction improve durability vs. stamped alternatives?

Product comparison

CategoryUsage ScenariosCharacteristicsAdvantagesDisadvantages
Material CompositionIndustrial pipelines, HVAC systemsIndustry Standard: Galvanized Steel (ASTM A153)
Our Base: Forged Steel (ASTM A105)
Our Advanced: Stainless Steel 316 (ASTM A182)		▲ Base: Enhanced durability vs galvanized steel.
▲▲ Advanced: Corrosion resistance in harsh chemicals.		Advanced versions may cost 30–50% more than base models.
Pressure RatingHigh-pressure fluid systemsIndustry Standard: PN10
Our Base: PN16 ▲
Our Advanced: PN25 ▲▲		▲ Base: Handles industrial-grade pressures.
▲▲ Advanced: Suitable for extreme applications (e.g., oil refineries).		Higher pressure ratings increase weight and installation complexity.
CertificationsGlobal compliance marketsIndustry Standard: CE
Our Base: CE + RoHS ▲
Our Advanced: CE + RoHS + TÜV + ISO 9001 ▲▲		▲ Base: Meets EU environmental regulations.
▲▲ Advanced: Full industrial safety certification (e.g., hospitals, aerospace).		Advanced certifications add 15–20% to production costs.
Chemical ResistanceChemical plants, oil/gas facilitiesIndustry Standard: Resists 20+ chemicals (ASTM D543)
Our Base: 40+ chemicals ▲
Our Advanced: 60+ chemicals ▲▲		▲ Base: Safe for moderate chemical exposure.
▲▲ Advanced: Withstands aggressive solvents (e.g., sulfuric acid).		Limited compatibility with ultra-corrosive substances in extreme cases.
Thread CompatibilityCross-border projectsIndustry Standard: DIN Threads
Our Base: DIN + ANSI ▲
Our Advanced: DIN + ANSI + JIS ▲▲		▲ Base: Versatile for US/EU systems.
▲▲ Advanced: Universal fit for global installations.		Custom threading may require additional machining.
Noise/Vibration DampingHospitals, data centersIndustry Standard: 55 dBA (typical pipe clatter)
Our Base: 48 dBA ▲ (ISO 3744)
Our Advanced: 43 dBA ▲▲ (quieter than refrigerator hum)		▲ Base: Reduces noise in offices.
▲▲ Advanced: Ideal for noise-sensitive environments.		Advanced models require precise installation to maintain damping efficiency.

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