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Nitto Kohki Co., Ltd

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"CUPLA" enables flexible, fast, secure connections in various fluid lines

CUBE CUPLA

Colorful Variation for Identifying Pipe Line

  • Plastic body in light weight
  • Easy push-to-connect operation
  • 2 face push button prevents accidental disconnetion
  • 5 color variations

SEMICON CUPLA SCAL TYPE

Reliable Connector for High Purity Chemical Fluid Transfer

  • Excellent chemical resistance with PTFE body
  • No metal is used in liquid contact parts
  • Minimized spillage over disconnection
  • Easy push-to-connect design
  • Optional keyway patterns available

FLAT FACE CUPLA FF

Enhancing Your Metal Die Casting Capability

  • Huge flow rate to speed up hydraulic cylinder
  • Rigid construction for high pressure die casting
  • Concave design on socket for smooth centering and easy connection

ZEROSPILL CUPLA

Die and Mold Change Without Fluid Spill

  • Eliminates both air ingress and spill during connection and disconnection
  • Supurb flow rate achieved
  • Zero-friction valve strucure for smooth connection

COMPACT ZEROSPILL CUPLA

Unrivalled Flow for Dripless Applications

  • Compact size saves space
  • High flow rate for efficient cooling
  • Easy operation, push-to-connect design
  • Both air inclusioon when connectiong and liquid spillage when disconnecting are minimized

PURGE ADAPTER

Eliminating Residual Pressure in Hydraulic Lines Instantly

  • Slim and neat piping with an in-line design
  • Easy push button for quick pressure purge
  • Robust Construction Applicable up to 5,000 psi

HOT WATER CUPLA HW TYPE

Outstanding Performance in Hot Water Thermal Control Application

  • Increased durability for hot water (max 350 F) thermal control system
  • Double O-ring design and sleeve lock function for extra safety

FLOW MONITOR

Visual flow check at a glance in thermal control application

  • Clear flow visibility with spinning two-color vanes
  • Replaceable Flow Vane ASSY to refresh visibility
  • Safety stopper to prevent unintended disassembly
  • Free spinning nut structure for easy installation

PCV PIPE CUPLA

Quick Connect Solution of Piping in HVAC units production

  • Clamps directly on a straight copper pipe of HVAC products
  • Functions as a flow port of refrigerant, test gas and vacuuming
  • Double seal construction withstands a vacuum of up to 0.001 mmHg and high pressure of up to 653 PSI
  • Choices are available in the size of 3/16" - 5/8" pipe outer diameter

MULTI CUPLA MAM TYPE

Quick and Secure Connections of Multiple Air Lines

  • Simple and safe lever operation for connection and disconnection
  • Error proof of multiple air line connections
  • Suitable for die change for spot welding, pneumatic valve gate control in molding

Product Categories

Pneumatic

Water, Liquid

High Pressure Hydraulics

Multi-Port Connection System

High Purity Fluid and Food

HVAC & Automotive Testing

Semi Standard Cupla Series

Accessories

Applications

Automotive Manufacturing and Testing

Application Examples

  • Air line connections for assembly tools, motion control system
  • High frequency connection and disconnection fluid line for automotive part testing
  • High pressure hydraulic

High Purity Chemical

Application Examples

  • Piping for semiconductor tools and machinery
  • Piping for chemical delivery/ handling systems
  • Piping for biotech equipment
  • Piping in scientific, chemical and medical industries.

HVAC Unit Productions, Charging and Testing

Application Examples

  • Air, Nitrogen charging for pressure leak test
  • Helium charging and vacuuming for leak test
  • Freon charging for product bench test

Plastic Injection, Metal Casting

Application Examples

  • HPDC cylinder operation
  • Mold/Die water lines for thermal control
  • Pneumatic control of ejector pin, injection valve gate

Computer Cooling

Application Examples

  • Cooling unit of high performance computer, telecommunication system, and data storage system

Downloads

Quick Connect Couplings General Catalog:

Ck040g

Quick Connect Couplings for refrigeration, automotive and air conditioning industries:

Ck024c

Multi-Port Connection Type Quick Connect Couplings:

Ck031B

Click for more

Videos

Flow Monitor
Cube Cupla
Solutions for residual pressure issues of CUPLA
Hi Cupla versus Full-Blow Cupla
Click for more

Tradeshow

Tradeshow name Date Location City Booth #
Expo Manufactura
 Jan.30 - Feb. 1, 2024 Cintermex Monterrey Monterrey, NL Mexico 1842
MD&M West Feb. 6 - 8, 2024 Anaheim Convention Center Anaheim, CA 2596
NPE May. 6 - 10, 2024 Orange County Convention Center Orlando, FL S15177

Contact us

NITTO KOHKI U.S.A., INC. - CUPLA Division

Toll Free: 1-800-323-8828 Phone: 1-630-924-9393 Fax: 1-630-924-0303

e-mail: quickconnects@nittokohki.com