EN
ISO Center Ring with Outer Ring & O-Ring ISO63-ISO500 Vacuum Fitting SS304/SS316L/Aluminum Stainless Steel FKM/NBR/EPDM
Vacuum Pipe Ring Fittings SS304/SS316L/Aluminum KF/NW/ISO Center Ring with Aluminum/SS304 Outer Ring & O-Ring with FKM/NBR Seals
- Overview
- Recommended Products
ISO Flange Assembly Instructions
ISO flanges are larger than KF flanges, similar to the KF flanges, they use a centering ring for sealing ISO flanges are widely used in systems that need frequent cleaning or disassembly.
There are two different methods to join the flanges together:1. Bolts (ISO-F, see diagram C) or 2. Claw clamps (ISO-K, see diagram A). These two flanges look very different, yet they can be joined together by using a single claw clamp(see diagram B).
A.ISO-K Flange with Double Claw Clamp B.ISO-K Flange with Single Claw Clamp
A.ISO-K Flange w B.ISO-K Flange and Nonrotatable with Rotatable Bolt Ring
Applications
ISO flanges are a sexless design made from 304 stainless, they can be used in a wide range of applications including
- ISO-KF fittings can be used in a wide variety of applications including:
- Roughing and foreline plumbing
- Small systems
- Systems requiring frequent cleaning or modification
- Research and teaching laboratories
- ISO-KF components are primarily designed for use at subatmospheric pressure. Because of the large number of elastomer seals used.
Description
The ISO-KF system is a modular, building block method ofcreating a piping system. There are several advantages in the use of ISO components. Since component dimensions are standardized, elbows,tees, crosses or valves for a given size may be interchanged. The flanges are ''sexless'' and the seal is symmetrical, so that the components are rotatable. By using ISO components, system assembly is quick and cost effective. See Figure 1 for the ISO dimensions of flange sizes 10, 16, 25, 40 and 50. These dimensions apply to ISO-KF flanges of these nominal diameters throughout this catalog.
Material and Size
- Flanges,Blanks,Fittings:Stainless Steel 304,316L or Aluminum
- Clamps:Aluminum or Stainless Steel 304
- O-Ring:FKM/NBR/EPDM
- Size:KF10-KF50(See Figure 1
Vacuum range
Elastomer seal: >= 1 x 10-8 Torr
Temperature range
FKM: -50°C to 200°C
Center Ring with Outer Ring & O-Ring
*Cnter Ring Material:SS304/SS316L/Aluminum
*Outer Ring Material:Aluminum
*O-Ring Material:FKM/EPDM/NBR
|
Model for Alu+SS304+FKM |
Model for Alu+SS304+NBR |
Size | A/mm | B/mm | C/mm | D/mm |
|---|---|---|---|---|---|---|
| FLG31N1S63348 | FLG31N1S63448 | ISO63 | 94 | 70 | 3.9 | 8 |
| FLG31N1S80348 | FLG31N1S80448 | ISO80 | 109 | 83 | 3.9 | 8 |
| FLG31N1S100348 | FLG31N1S100448 | ISO100 | 128 | 102 | 3.9 | 8 |
| FLG31N1S125348 | FLG31N1S125448 | ISO125 | 152 | 125.8 | 3.9 | 8 |
| FLG31N1S160348 | FLG31N1S160448 | ISO160 | 179 | 153 | 3.9 | 8 |
| FLG31N1S200348 | FLG31N1S200448 | ISO200 | 238 | 213 | 3.9 | 8 |
| FLG31N1S250348 | FLG31N1S250448 | ISO250 | 187 | 260.4 | 3.9 | 8 |
| FLG31N1S300348 | FLG31N1S300448 | ISO300 | 344 | 317.3 | 5.6 | 12 |
| FLG31N1S400348 | FLG31N1S400448 | ISO400 | 446 | 400 | 5.6 | 12 |
| FLG31N1S500348 | FLG31N1S500448 | ISO500 | 535 | 501 | 5.6 | 12 |
About Us
Wenzhou QiMing Stainless Co., Ltd. was founded in 2015, located in Wenzhou city providing a wide range of stainless steel valves and fittings for food, dairy, beverage,cosmetic, wine industries, semiconductor, LCD,solar energy, lithium technology, photovoltaic and other high-tech industries. mainly manufacture and export SS valves and fittings including Butterfly Valve, Ball Valve, Check Valve, Angle Valve, Vacuum Valves, Tri Clamp Fittings, Weld Fittings,KF/NW flanges, ISO Flanges and CF Flanges. has Mazak CNC, Milling CNC, handheld spectrometer,helium mass spectrometer leak detection, roughness tester and others. With more than 10 years development, QiMing gets 3A certificate and ISO9001:2008. QiMing's main market is Europen, USA, Korea,Japan and so on.
QiMing Market
Our products are exported to many countries, including South Korea, the United States, the United Kingdom, ltaly, France, the Netherlands, Finland, Russia, Belarus, Thailand, CanadaMexico,
Australia, Germany, Spain, Malaysia, Singapore, Vietnam, Indonesia, India, thePhilippines, Japan, Paraguay, Brazil, Chile, Peru, and more.
QiMing Team
Our experienced engineers work closely with each customer to find out the best possible solutions.Our constant technical innovation combined with stringent quality control systems hasenabled us to deliver high performance and outstanding value in sanitary applications.We are dedicated to improving the performance and value of our products, services, and solutions to meet your requirements
Equipment & Testing
QiMing has advanced CNC machieries,CNC centers and Testing Equipment,ISO9000 Certificated and all raw materials are traceablethe ablethe
Certificate
Exhibition
Wenzhou Qiming Stainless Steel Co., Ltd. participated in the Japan Semiconductor Exhibition in November 2023, the Shenzhen Semiconductor Exhibition in June 2024, and the U.S. Semiconductor Exhibition in July 2024. In December 2024, the company attended the Japan Semiconductor Exhibition again and participated in the China Optoelectronics Expo during the same period. It will take part in the China Optoelectronics Expo in September 2025, the U.S. Semiconductor Exhibition in October 2025, and the Japan Semiconductor Exhibition in November 2025.
FAQ
Q: Why would I choose you?
Wenzhou QiMing Stainless Co., Ltd has been engaging in manufacturing sanitary valves, fittings, tank components and pumps for over
15 years, outstanding in production capacity, effective management, accurate lead time, on-time shipments and problems-solving
rate after sales.
Q: May I have free samples before ordering?
Yes, our company is very pleased to send you free samples for quality test as long as freight cost being paid by buyers
themselves.
Q: What's the MOQ?
The majority of products are fully in stock, so we accept 1 piece as the minimum order quantity.
Q: Does your company have the export license?
Yes, we have more than 4 years export experience, we can do FOB, C&F, CIF, DDU and DDP (Russian Only).
Q: What's the payment term?
For small testing orders, we accept Paypal, Western Union, T/T and Credit Card.
For mass orders, we accept T/T and L/C.
Q: How would you minimize damages during delivery?
Standard: mass orders will be packed by many carbon boxes and filled in plywood cases.
Available requirement: blister packing for every piece of product, plastic caps for clamp connected products.
Q: How would you choose the shipment way?
Basically, we will select shipment ways based on four factors (order quantity, delivery time, costs and customs policy), then list
couples of reasonable options with Pros and Cons to customers, letting them to decide.
