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The socket marked S receives the plug and holds it in place. Like the plug it is built in stainless steel with an EPDM seal. It is connected through a male thread. Model CZL-1SM, stainless steel, Seal material EPDM.
Breaking a liquid line should leave nothing dripping and nothing running out. The Nitto Kohki Compact Zero Spill Cupla is designed for spill-free disconnection and has a stainless steel body.
Design for spill-free disconnection, the fluid stays in the line when the coupling is broken
Stainless steel body on every model in the range
EPDM as the sealing material across the whole range
Compact build, which keeps the space needed at the coupling point small
Two sizes in the CZL model range, each available as a socket marked S and as a plug marked P, both with a male thread
Technical data from the manufacturer catalogue
Series
COMPACT ZEROSPILL CUPLA
Model
CZL-1SM
Coupling part
Socket
End connection
Male thread
Port size
Rc 1/8
Body material
Stainless Steel (SUS304), Nickel plated on Socket body
Seal material
Ethylene-propylene rubber (EPDM)
Max working pressure
1.0 MPa {10 kgf/cm2, 10 bar, 145 PSI}
Working temperature
Ethylene-propylene rubber (EPDM): -10 °C to +100 °C
Valve structure
Two-way shut-off (Spill Reduction)
Applicable fluids
Air, Water
Vacuum service
Please contact us if vacuum is required for your application.
Size range
Thread 1/8 inch, 1/4 inch
Pressure unit table
Working pressure 1.0 MPa, 10 kgf/cm2, 10 bar, 145 PSI
Maximum tightening torque in Nm {kgf.cm}
1/8 inch: 9 {92}, 1/4 inch: 14 {143}
Flow direction
Fluid flow can be bi-directional when socket and plug are connected.
Socket outer diameter
CZL-1SM: 16 mm, CZL-2SM: 18.5 mm
WAF
WAF stands for width across flats.
Mass
0.050 kg
Part number
349865628
Catalogue page
C01en-b, 29
Dimensions
How the dimension letters in the table map onto the part.
Model
L
T
øH (WAF)
øoD
CZL-1SM
(53)
R 1/8
Hex.13
16
Dimensions in millimetres. Values in brackets apply in the connected condition.
Legend: L = overall length; T = thread or barb size
Models in this series COMPACT ZEROSPILL CUPLA
Model
Application
Stainless steel (g)
L
T
øH (WAF)
øoD
CZL-1SM
Rc 1/8
38
(53)
R 1/8
Hex.13
16
CZL-2SM
Rc 1/4
49
(55.5)
R 1/4
Hex.16
18.5
Every model of the series as printed in the manufacturer catalogue. The row of the article offered here is highlighted.
Operating principle
Both halves close on disconnection, so the line contents are retained on both sides.
Compact size saves space. Outer diameters of 16 mm (CZL-1SM) and 18.5 mm (CZL-2SM).
High flow rate for efficient cooling.
Easy operation, push-to-connect function.
Valve structure reduces air inclusion on connection and liquid spillage when disconnecting.
Small, high flow type for coolant piping.
Series comparison
Series
Max working pressure
Size range
Valve structure
Applicable fluids
COMPACT ZEROSPILL CUPLA
10 bar
Thread 1/8 inch, 1/4 inch
Two-way shut-off (Spill Reduction)
Air, Water
PURGE LINE CUPLA
10 bar
Inlet R 1/2, outlet socket (PV-30SM)
One-way shut-off
Air
HI CUPLA BL
15 bar
1/4 inch, 3/8 inch, 1/2 inch (thread and hose barb); SN type for urethane hose: for 6.5 x 10 mm, 8 x 12 mm and 8.5 x 12.5 mm hose
One-way shut-off
Air, Water
NUT CUPLA / NUT CUPLA 200 / ROTARY NUT CUPLA / HI CUPLA for Connection to Braided Hoses
15 bar
Urethane hose ø5 mm x ø8 mm to ø11 mm x ø16 mm; braided hose ø9 mm x ø15 mm
One-way shut-off
Air, Water
LOCK CUPLA 200
15 bar
Thread and hose barb 1/4 inch, 3/8 inch, 1/2 inch; SNRG type for ø6.5 mm x ø10 mm and ø8.5 mm x ø12.5 mm hose
One-way shut-off
Air
HI CUPLA Two Way Type
15 bar
Thread 1/4 inch, 3/8 inch, 1/2 inch. Hose barb for dia. 6.5 mm x dia. 10 mm and dia. 8.5 mm x dia. 12.5 mm hose.
RT Type (for two branch lines): inlet HI CUPLA Plug 20PF, outlet 2 sockets for HI CUPLA Socket Model 20. RE Type (for three branch lines): inlet R 1/2, outlet 3 sockets for HI CUPLA Socket Model 20.
One-way shut-off
Air
Choose COMPACT ZEROSPILL CUPLA when air inclusion on connection and liquid spillage on disconnection have to be limited: it is two-way shut-off with spill reduction, while the sibling series in this group - HI CUPLA BL, NUT CUPLA, LOCK CUPLA 200, PURGE LINE CUPLA and ROTARY LINE CUPLA - are one-way shut-off. Its socket outer diameter of 16 mm (CZL-1SM) or 18.5 mm (CZL-2SM) in sizes 1/8 inch and 1/4 inch suits coolant piping in tight space. If the line runs up to 1.5 MPa {15 kgf/cm2}, one of the one-way shut-off peers is the better choice, because this series is rated 1.0 MPa {10 kgf/cm2}.
Body and seal materials
Body material
Stainless Steel (SUS304), Nickel plated on Socket body
Seal material
Mark
Working temperature
Remarks
Ethylene-propylene rubber
EPDM
-10 °C to +100 °C
Standard material
Applications
Liquid circuits in which no fluid may escape on disconnection
Installations that require stainless steel on the wetted parts
Coupling points with little installation space
Equipment disconnected often for servicing
Safety and application notes
Before use, please be sure to read "Safety Guide" described at the end of this book and "Instruction Sheet" that comes with the products.
All technical data on this page is taken from the Nitto Kohki general catalogue Quick Connect Couplings C01en-b, page 29. The complete catalogue is available for download on this page.