| Standard: | ANSI, DIN, GB, JIS, GOST, BSW |
|---|---|
| Type: | Welding Flange |
| Material: | Stainless Steel |
| Structure: | Axial |
| Connection: | Flanged |
| Sealing Surface: | FM |
| Samples: |
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| Customization: |
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Suppliers with verified business licenses
Audited Supplier KF Center Ring
The "KF center ring" typically refers to a component used in vacuum systems that utilize KF (Klein Flange) fittings. KF fittings are a widely used standard in vacuum technology, known for their ease of assembly and reliability in creating a vacuum-tight seal.
The center ring is an essential part of KF flange connections. It is a circular metal ring with a knife-edge profile that is used to compress and seal a conical elastomeric O-ring between two KF flanges. The O-ring is typically made of materials such, Buna-N, or other compatible elastomers, and it forms the seal between the mating flanges when the center ring is compressed.
| Specification | CR | A | B | C | D |
| KF10CRA | AL | 10 | 12 | 3.9 | 8 |
| KF16CRA | AL | 16 | 17 | 3.9 | 8 |
| KF25CRA | AL | 25 | 26 | 3.9 | 8 |
| KF40CRA | AL | 40 | 41 | 3.9 | 8 |
| KF50CRA | AL | 50 | 52 | 3.9 | 8 |
| KF10CRS | 304 | 10 | 12 | 3.9 | 8 |
| KF16CRS | 304 | 16 | 17 | 3.9 | 8 |
| KF25CRS | 304 | 25 | 26 | 3.9 | 8 |
| KF40CRS | 304 | 40 | 41 | 3.9 | 8 |
| KF50CRS | 304 | 50 | 52 | 3.9 | 8 |
Q1: Are you a trading company or manufacturer?
A: We are a factory in Shanghai with a group of professional technical and production personnel. We continuously innovate and develop new products in the vacuum field, such as USB 3.0. HDMI, RJ45 Feedroughs, etc. We have 4 utility model and appearance patents. and continue to provide customers with high-quality vacuum products.
Q2: What products do you sell?
A: We specialize in the design and manufacture of various vacuum application system components. These include vacuum gate valve, vacuum baffle valve, vacuum butterfly valve, vacuum ball chamber, vacuum diaphragm valve, vacuum vent, vacuum fine-tuning valve, vacuum one-way chamber, vacuum chamber, vacuum bellows, CF flange series, IS0 flange series, KF flange series, elbow, tee, cross, clamp, caliper, center bracket, outer bracket, 02 bracket, oxygen-free copper pad, plastic protective cover and customizable vacuum pipes and non- Standard parts. Products are widely used in high-tech industries such as semiconductor manufacturing, national defense research, aerospace, biopharmaceuticals, liquid crystals, photovoltaic solar energy, etc.
Q3: Do you provide samples? Is it free?
A: Yes, we could offer the sample for free charge but do not pay the cost of freight
Q4: Could I use my logo or design on goods?
A: Yes. Customized logos and designs on production are available, But we need you to provide us with authorization to use your trademark.
Q5: How long is your delivery time?
A: In stock: 5-10 days; Out of stock: based on the quantity of your products
Suppliers with verified business licenses
Audited Supplier 
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