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Home > Products > Vacuum Components / Fittings > Vacuum Centering Rings > ISO-K Centering Rings with Viton O-Ring Retainer Ring

ISO-K Centering Rings with Viton O-Ring Retainer Ring

    Payment Type: L/C,T/T,D/P,Paypal,Money Gram,Western Union
    Incoterm: FOB,CFR,CIF,FCA,CPT
    Min. Order: 1 Piece/Pieces
    Delivery Time: 15 Days
Basic Info

Material: SS304, SS316/316L, Aluminium

Sealing Material: Viton, NBR

Standard: KF Standards

Product: ISO Centering Ring With Oring

Size: ISO63-500

Additional Info

Packaging: CARTON BOX INSIDE WOODEN CASE

Productivity: 10000ton

Brand: KAYSEN

Transportation: Ocean,Air

Place of Origin: China

Supply Ability: 10000ton

Certificate: CE,FCA,SGS,3A

HS Code: 7307230000

Port: Shanghai Port,Ningbo Port,Tianjin Port

Product Description

Product Description

These ISO-K centering rings are used for mating ISO Flanges and include both the ISO centering ring in SS304 or Aluminium and Viton or NBR o-ring and Aluminium Outer Ring(Retainer Ring). The ISO flange (also called Large ISO) is used for HV chamber ports and is available in two distinct styles; ISO-K which uses clamp fasteners and ISO-F which uses nut and bolt fasteners. Size from ISO63-ISO500, belongs to ISO Vacuum Flanges & Components series, These Vacuum Fittings are made of corrosive resistant stainless steel. They are commonly used to build foreline vacuum plumbing and process systems.

Product Features

ISO Outer Ring, Centering Rings and O-rings Feature:

Centering Ring: 304 S.S. or Aluminum (Other material available upon request)
O`ring: Viton or NBR
Outer Ring: Aluminum

Overpressure Ring: SS304

Size: ISO63 ~ ISO500

Vacuum range : 1×10-8 Torr
Temperature range : 150 °C(Viton) / 80 °C(NBR)

• Standard: KF standards, ISO standards

Color: Silver

Quality Inspection
▪ PMI test to verify material grade
▪ Dimension controlling during fabricating and finished
▪ Visual and surface 100% examination before shipment
▪ Packed in carton box firstly, then in wooden case

Product Drawing

ISO Outer Ring Centering Ring, O'ring

Center Ring

Connection of ISO-series Fittings

ISO Flange System Connection




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Vacuum Fittings - Working Process

Our Service

1. Any question and inquires will be responded within 24 hours.

2. Professional technical team support OEM/ODM service.

3. Feedback efficiently for the whole trading process.

4. 100% inspection before shipment.

5. We are a manufactor (Forging workshop and CNC machining workshop )
6. We can supply KF(NW) Vacuum Flanges & Components, ISO Vacuum Flanges & Components, CF Vacuum Flanges & Components, Flexible Bellows, Vacuum Fittings, Vacuum Valves, each products are tested well by our strictly Quality Control System.

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Looking for ideal ISO-K Centering Rings Manufacturer & supplier ? We have a wide selection at great prices to help you get creative. All the ISO Outer Rings are quality guaranteed. We are China Origin Factory of ISO Retainer Rings Aluminum. If you have any question, please feel free to contact us.

Product Categories : Vacuum Components / Fittings > Vacuum Centering Rings

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