Catalog image
Approved Vendor
Quick-Clamp High-Vacuum Fitting
Manufacturer part: 4518K481
Instead of a gasket, these fittings have a special ring that is designed for high-vacuum applications, such as vacuum coating and heat treating, leak testing, and analyzing gases. Also known as KF, QF, and NW fittings, they are the most common type of connection in high-vacuum systems. Connect with a clamp and another quick-clamp fitting for fast, easy access to your line. To use fittings in pressure applications, use a pressure-rated ring (sold separately). 304 stainless steel fittings have very good corrosion resistance.Note: To complete a connection, you’ll need two quick-clamp fittings, a ring, and a clamp (all sold separately).Fittings with threaded pipe end require PTFE tape for sealing the threads.
- Availability
- In stock
- Lead time
- Contact supplier
- Sold by
- Approved Vendor
Technical data
Specifications
Normalized product attributes for faster comparison and sourcing.
- ECCN
- 2B999
- RoHS
- RoHS 3 (2015/863/EU) Compliant
- Type
- Adapter
- DFARS
- Specialty Metals COTS-Exempt
- REACH
- REACH (EC 1907/2006) (06/14/2023, 235 SVHC) Compliant
- Shape
- Straight
- Gender
- Female
- Length
- 3/4,"
- Features
- PTFE Thread Sealant
- Material
- 304 Stainless Steel
- Flange OD
- 1.18"
- Pipe Size
- 1/4
- Schedule B
- 730729.0000
- For Tube OD
- 3/4,"
- Thread Type
- NPT
- For Use With
- Air
- Vacuum Rating
- High
- Maximum Vacuum
- 1 × 10 , -7 , torr @ 72° F
- Sterilize With
- Steam (Autoclaving)
- Connection Style
- Threaded
- Maximum Pressure
- Not Rated
- Country of Origin
- Taiwan
- For Tube Material
- 304/304L Stainless Steel, 316/316L Stainless Steel
- Temperature Range
- 0° to 300° F
- Specifications Met
- ISO 2861
- Gasket Connection Style
- Standard
- High-Vacuum Flange Size
- 16
- High Vacuum Connection Type
- ISO-KF
- Quick-Clamp Connection Type
- Standard
Supplier coverage
Compare available offers
Review pricing, availability, and fulfillment details from verified distributors.
| Supplier | Supplier SKU | Price | Stock | Lead time | Type |
|---|---|---|---|---|---|
| Approved Vendor | 4518K481 | Request price | Contact supplier | Contact supplier | Authorized · US distributor |
Prices and availability are provided by suppliers and may change.