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Quick couplings

Plastic Cupla BC Type

The Nitto Kohki Plastic Cupla BC Type is a plastic-bodied quick coupling for low-pressure pneumatic applications where corrosion resistance, light weight or electrical insulation are required. The range consists of four items in sizes BC-02 and BC-03, available as plug (PH) and socket (SH) with NBR seals. The plastic body makes these couplings suitable for environments involving aggressive media or corrosive substances.

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  • 1 manufacturer
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  1. Quick connect coupling Plastic Cupla BC Type BC-02PH, plastic - Nitto Kohki LA97911
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    Quick connect coupling Plastic Cupla BC Type BC-02PH, plastic - Nitto Kohki LA97911
    €2.71
  2. Quick connect coupling Plastic Cupla BC Type BC-02SH, plastic - Nitto Kohki LA95844
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    Quick connect coupling Plastic Cupla BC Type BC-02SH, plastic - Nitto Kohki LA95844
    €2.66
  3. Quick connect coupling Plastic Cupla BC Type BC-03PH, plastic - Nitto Kohki LA94533
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    Quick connect coupling Plastic Cupla BC Type BC-03PH, plastic - Nitto Kohki LA94533
    €2.71
  4. Quick connect coupling Plastic Cupla BC Type BC-03SH, plastic - Nitto Kohki LA94534
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    Quick connect coupling Plastic Cupla BC Type BC-03SH, plastic - Nitto Kohki LA94534
    €2.66

Buying guide

How to choose Plastic Cupla BC Type

What matters when choosing: properties, comparison and typical applications.

Technical features

⚙ Plastic housing - corrosion-resistant, lightweight, electrically insulating
✓ NBR seal - suitable for compressed air and general pneumatic media
↕ Sizes BC-02 and BC-03 - plug (PH) and socket (SH) per nominal size
✦ Compact design - low weight, suited to portable equipment and hand tools

Selection criteria

CriterionOption
Nominal sizeBC-02, BC-03
Connector typePH (plug), SH (socket)
Body materialPlastic
SealNBR
Key advantage vs. steelCorrosion resistance, weight saving, electrical isolation

Typical applications

Typical applications: Pneumatic tools requiring corrosion protection, food and pharmaceutical applications where electrical insulation is specified, laboratory use, and portable equipment where weight and chemical resistance are priorities.

FAQ

Frequently asked questions about Plastic Cupla BC Type

What are Nitto Kohki Plastic Cupla BC Type quick connect couplings and what industrial applications do they serve?
Nitto Kohki Plastic Cupla BC Type quick connect couplings are lightweight pneumatic coupling solutions engineered with NBR sealing materials for rapid connection and disconnection in compressed air systems. These plastic-bodied couplings serve manufacturing automation, assembly line equipment, pneumatic tooling, and general industrial pneumatic applications where frequent coupling changes are required. The BC series features corrosion-resistant construction ideal for automotive assembly plants, electronics manufacturing, and food processing facilities. Available in multiple port configurations including BC-02PH, BC-02SH, BC-03SH, and BC-03PH variants, these couplings provide reliable sealing performance in demanding industrial environments where metal couplings would be impractical due to weight or corrosion concerns.
What are the key technical selection criteria for Plastic Cupla BC Type couplings with specific operating parameters?
Selection of Plastic Cupla BC Type couplings requires evaluation of operating pressure range typically up to 10 bar for standard pneumatic applications, port size compatibility with existing system connections, and NBR seal material compatibility with compressed air or inert gas media. The plastic construction limits operating temperature range to approximately -10°C to +60°C, making material selection critical for temperature-sensitive applications. Flow capacity varies between BC-02 and BC-03 series based on internal bore diameter, with larger BC-03 variants providing higher flow rates for high-demand pneumatic actuators. Connection type designation with PH indicating plug configuration and SH indicating socket configuration must match existing system coupling interfaces for proper mechanical engagement and sealing integrity.
Which international standards and certifications apply to Nitto Kohki Plastic Cupla BC Type pneumatic couplings?
Nitto Kohki Plastic Cupla BC Type couplings comply with ISO 4414 pneumatic fluid power systems standards for safe installation and operation of compressed air equipment in industrial environments. The NBR sealing materials meet food-grade requirements where applicable, supporting installation in food processing and pharmaceutical manufacturing facilities. Construction materials and design parameters align with EN 983 safety requirements for pneumatic couplings operating in European industrial applications. Quality management systems follow ISO 9001 certification standards ensuring consistent manufacturing tolerances and performance characteristics across production batches. These standards compliance certifications enable integration into safety-critical pneumatic systems where component failure could impact production equipment or worker safety protocols.
What are the differences between BC-02PH, BC-02SH, BC-03PH, and BC-03SH variants in the Plastic Cupla BC series?
The Plastic Cupla BC series variants differ primarily in port size and connection configuration, with BC-02 models featuring smaller bore diameter suitable for lower flow rate applications while BC-03 models provide larger internal passages for higher volume pneumatic systems. The PH designation indicates plug configuration designed to mate with corresponding socket couplings, while SH variants feature socket configuration accepting plug-type connections for complete coupling assembly. Both BC-02PH and BC-03PH models serve as male components in pneumatic coupling systems, whereas BC-02SH and BC-03SH function as female receptor components. All variants utilize identical NBR sealing technology and plastic body construction, with selection based on system flow requirements and existing coupling infrastructure rather than fundamental performance differences.
What installation requirements and system compatibility factors apply to Plastic Cupla BC Type couplings?
Installation of Plastic Cupla BC Type couplings requires clean, dry compressed air lines with filtration to 40 microns or finer to prevent contamination of NBR sealing surfaces and ensure reliable connection engagement. System pressure must be relieved before coupling connection or disconnection to prevent sudden air discharge and potential safety hazards during maintenance operations. Thread connections utilize standard pneumatic fitting threads compatible with existing compressed air distribution systems, requiring thread sealant or PTFE tape for leak-proof installation. The lightweight plastic construction eliminates concerns about galvanic corrosion when installed with aluminum or stainless steel pneumatic components. Proper installation includes verification of full coupling engagement through audible click confirmation and visual inspection of locking mechanism alignment before system pressurization.
What safety ratings, IP protection class, and operating temperature-pressure ranges apply to BC Type plastic couplings?
Plastic Cupla BC Type couplings operate safely within pressure ranges up to 10 bar working pressure with safety factor margins appropriate for standard compressed air applications in industrial environments. Operating temperature range spans -10°C to +60°C, with NBR sealing materials maintaining flexibility and sealing integrity throughout this thermal range in typical factory conditions. The plastic housing construction provides inherent electrical isolation eliminating static discharge concerns in electronics manufacturing and sensitive equipment applications. While specific IP protection class ratings vary by installation configuration, the coupling design provides adequate protection against dust ingress and incidental water contact in standard industrial pneumatic applications. Maximum operating pressure should not exceed manufacturer specifications to maintain coupling integrity and prevent catastrophic failure that could endanger personnel or damage connected equipment.
What maintenance schedule, service life expectations, and inspection requirements apply to Plastic Cupla BC couplings?
Plastic Cupla BC Type couplings require quarterly visual inspection of coupling bodies for stress cracking, NBR seal condition, and locking mechanism function to ensure continued reliable operation in pneumatic systems. Service life typically extends 2-3 years under normal industrial conditions with proper filtration and dry compressed air, though harsh environments or contaminated air supply may reduce operational lifespan significantly. Monthly functional testing involves coupling engagement and disengagement under system pressure to verify smooth operation and absence of air leakage at sealing interfaces. Annual replacement of NBR sealing components maintains optimal sealing performance and prevents gradual air leakage that reduces system efficiency. Preventive maintenance includes cleaning coupling surfaces with isopropyl alcohol and inspecting for wear patterns that indicate misalignment or excessive operating forces requiring system evaluation.