We have launched a special page for CPC quick couplings.

サンワ・エンタープライズ

"Connecting" and "disconnecting" in fluid piping made simpler and more reliable. CPC is a global leading company in quick couplings for plastic tubes, established in 1978 in Minnesota, USA. Sanwa Enterprise Co., Ltd. began handling products as the first overseas general agent for CPC and has introduced CPC couplings to various industries and applications in the Japanese market for over 30 years. On the special page, we provide detailed information about new products from CPC, as well as a wide range of shapes, materials, and functions.

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Related product information

Coupling | Made by US CPC Corporation Coupling *Video introduction available
CPC couplings are top-class couplings for plastic tubes with over 30 years of history.

● Over 30 years of experience in manufacturing plastic couplings ● Classic thumb latch system allows for intuitive operation ● Options for over 2,000 part numbers in various diameters, shapes, and materials For the latest information from Sanwa, follow us on "Facebook" or "Twitter" Search for @SanwaEnterprise!
Coupling | CPC Coupling PLQ2 Series
A next-generation coupling that uses polyphenylsulfone (PPSU) resin as the main material, allowing for use with fluids up to 115°C.

Main Features ● Uses heat-resistant PPSU for the main body material ● Non-spill structure that minimizes liquid dripping and air mixing to the extreme ● Button color coding for line identification is possible ● Unique new mechanism prevents sealing part adhesion during long-term connections
CPC coupling for ultra-thin tubes "SNS1 Series"
The world's smallest plastic coupling compatible with a tube inner diameter of 3.2mm.

● "Non-spill design" to prevent liquid dripping and air intrusion ● Minimal, lightweight compact design ● Standard equipped with 1/4-28UNF screw ● Unique thumb-latch system that allows easy operation even for beginners
Coupling | CPC Coupling LQ6 Series (Liquid Cooling Applications)
A metal semi-large model that further evolves the non-spill technology, which minimizes liquid dripping during coupling disengagement and air intrusion during connection to the utmost limit.

● New design drip-less structure ▶ No leakage even when disconnected under pressure ● Color identification ▶ Instantly distinguishable cooling lines ● New sealing method resistant to sticking ▶ Excellent operability ● High durability with extensive use of metal ▶ Withstands long periods and high frequency of attachment/detachment - Body: 12 items - Insert: 12 items - Combination of body and insert: 144 patterns LQ6 Specifications Operating pressure range: Vacuum to 0.83 MPa Applicable temperature range: -17°C to 115°C Spillage (upon disconnection) When disconnected at 0.0 MPa: 0.05 cc When disconnected at 0.83 MPa: 0.125 cc Air inclusion (upon connection): 0.42 cc Materials Main material: Brass (chrome-plated surface) Valve and latch: Polysulfone Valve spring: SUS302 Outer spring: SUS302 Seal: EPDM Lubricant: Krytox PFPE Caution When disconnecting the coupling, please keep the flow rate in the system below 15 liters/minute for proper valve operation.
Coupling | CPC Coupling LQ4 Series (For Liquid Cooling Applications Only)
A metal medium-sized model that has further evolved the non-spill technology to minimize liquid dripping during coupling disconnection and air intrusion during connection to the utmost limit.

LQ4 Series Specifications Operating Pressure Range: Vacuum to 0.83Mpa Applicable Temperature Range: -17℃ to 115℃ Material: Main Material: Brass (Surface Chrome Plated) Valve and Latch: Polysulfone Valve Spring: SUS302 Outer Spring: SUS302 Seal: EPDM Lubricating Oil: Krytox PFPE Spillage (during disconnection): 0.0Mpa disconnection results in 0.025cc 0.83Mpa disconnection results in 0.055cc Air Inclusion (during connection): 0.025cc upon connection Note: When disconnecting the coupling, please restrict the flow in the system to 11 liters/minute or less for proper valve operation.
Coupling | CPC Coupling LQ2 Series (Liquid Cooling Applications)
A metal compact model that further evolves the non-spill technology, which minimizes liquid dripping during coupling disengagement and air mixing during connection to the utmost limit.

LQ2 Series Specifications Operating Pressure Range: Vacuum to 1.38 MPa Applicable Temperature Range: -17°C to 115°C Materials: Main Material: Brass (Surface Chrome Plated) Valve and Latch: Polysulfone Valve Spring: Stainless Steel Outer Spring: Stainless Steel Seal: EPDM Lubricant: Krytox Spillage (upon disconnection): 0.015 cc/min at disconnection of 0.0 MPa, 0.063 cc/min at disconnection of 1.38 MPa Air Inclusion (upon connection): 0.063 cc upon connection
Coupling | CPC Dual Port Coupling DPC Series
A resin coupling that allows for reliable attachment and detachment of two piping systems in one action.

● One-touch attachment and detachment for 2 systems ▶ Quick and reliable attachment and detachment work ● Independent flow path ▶ Prevents incorrect connections in the line ● Easy-to-operate release button ▶ Both visibility and operability are easy ・Body 4 items ・Insert 4 items ・16 combinations of body and insert DPC Series Specifications Operating pressure range 0 to 0.8 MPa Applicable temperature range 0 to 82°C Material Main components: Polyacetal resin Spring: Stainless steel Seal: NBR
Bottle cap with coupling | CPC Coupling BQ45GL
Bottle cap for 45GL bottles equipped with standard CPC coupling.

**Main Advantages** - Sealing of the bottle is possible - Reduced risk of leakage - Improved sealing with the bottle - Easy attachment of the dip tube **Main Specifications** - Compatible thread standard: GL45 - Applicable temperature range: 0°C to 49°C **Materials** - Cap body: High-density polyethylene - Gasket: Low-density polyethylene - Package vent: Hydrophobic PTFE