Quick connect coupling Semicon SP Cupla 6P-304-E, stainless steel - Nitto Kohki 349812350

Made for high purity chemicals in semiconductor production, the Semicon SP Cupla connects containers and lines at a working pressure of 0.2 MPa. Body and valve springs are stainless steel SUS304 and the body is electro-polished.

• Working pressure of 0.2 MPa combined with a two-way shut-off valve keeps the fluid inside both container and line when the coupling is separated.
• Body and valve springs in stainless steel SUS304, with an electro-polished body surface for higher corrosion resistance.
• Four seal materials to choose from, FKM (X-100), EPDM (EPTS), perfluoroelastomer and Kalrez, each rated for 0 °C to +50 °C.
• No grease is applied to the seal, and all components are cleaned, assembled, inspected and packed in a clean room.
• Six sizes from Rc 1/8 to Rc 1 cover minimum cross-sectional areas from 13 mm² to 192 mm².
• Every plug comes with a dust cap, and SUS316 bodies and valve springs are available made to order.

Technical data from the manufacturer catalogue

Dimensions

Dimensions in millimetres. Values in brackets apply in the connected condition.

Legend: L = overall length; C = sleeve dimension; T = thread or barb size

Models in this series SEMICON CUPLA SP Type

Every model of the series as printed in the manufacturer catalogue. The row of the article offered here is highlighted.

Operating principle

• SP Type: General purpose type with stainless steel body and rubber seal. Electro-polished body for enhanced corrosion resistance.
• SP Type: Body and valve springs are stainless steel (SUS304). Body is electro-polished for enhanced corrosion resistance.
• SP Type: Seal materials can be selected to suit your fluid and application, to flexibly comply with your semiconductor production process requirements.
• SP Type: All components are cleaned, assembled, inspected, and then packed in a clean room.
• SP Type: Grease free. No grease is applied to the seal material.
• SP Type: Each plug comes with a dust cap.
• SP Type: Stainless steel SUS316 body and valve springs are available as made-to-order products.
• SCS Type: Adopted stainless steel body and fluorine contained resin valves.

Series comparison

SEMICON CUPLA SP Type and SCT Type share the same 0.2 MPa {2 kgf/cm2} rating and the same two-way shut-off, so pressure class and valve type do not separate them. Choose SP Type when the line calls for an electropolished stainless steel (SUS304) body with a rubber seal that can be specified as FKM, EPDM, perfluoroelastomer (P) or Kalrez (KL) to match the chemical, and for the size range from 1/8 inch to 1 inch including 1/8-27NPT, 1/4-18NPT and 19/32-18UNS. The working temperature range of 0 deg C to +50 deg C applies.

Body and seal materials

Applications

• Connecting stainless steel containers of 10 to 20 litres on semiconductor production lines
• Drawing high purity chemicals from containers of 100 to 200 litres
• Water and gas lines on semiconductor manufacturing equipment
• Compressed air connections on equipment operated inside clean rooms
• Process sections where the seal has to be matched to the fluid being handled

Compatibility

A socket and a plug of the same size can be connected regardless of their end configurations. Female threads are available as Rc, as NPT and as 19/32-18UNS.

Standards and compliance

Female threads from Rc 1/8 to Rc 1 plus 1/8-27NPT, 1/4-18NPT and 19/32-18UNS, with stainless steel SUS304 as the standard body material and SUS316 as a made-to-order option.

Safety and application notes

• SCAL Type: Whichever method, overtightening may damage the thread and cause leakage, so take extra care.
• SCAL Type: Excessive tightening will damage the threaded part and result in leakage.
• SCAL Type: Note: A very small amount of gas can permeate polytetrafluoroethylene (PTFE) bellows in the socket.
• 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 143. The complete catalogue is available for download on this page.