KF Vacuum Half Nipple – 304/316L Stainless Steel
KINGMAN Vacuum fittings are quick-connect components used in vacuum piping systems, widely applied in semiconductor, laboratory vacuum equipment, coating, aerospace, and new energy testing. They realize fast assembly and disassembly of vacuum pipelines, maintain stable vacuum degree inside the system, and effectively prevent air leakage. Our vacuum joints adopt precision CNC machining, with strict surface treatment, meeting high vacuum requirements.
Specifications
| Parameter | Value |
|---|---|
| Product Name | KF Vacuum Fittings And Flanges |
| Product Type | Flanges,Nipples,Elbows,Tees,Crosses,Clamps and Seals |
| Material | AISI 304 or 316L |
| Sizes | NW10–NW50 (approx. 1/2"–2") Suface Finish Machining finish. Other finishes are also available |
| Seal | FKM (Viton),EPDM, Buna-N (NBR) Vacuum Range ≥10-8 Torr |
Dimensions
Vacuum Half Nipple
| Material Code | Size | A | B | C | D | E |
|---|---|---|---|---|---|---|
| KFWS001010 | KF10 | 30.0 | 12.2 | 9.4 | 12.7 | 12.7 |
| KFWS001016 | KF16 | 30.0 | 17.2 | 15.7 | 19.1 | 12.7 |
| KFWS001025 | KF25 | 39.9 | 26.2 | 22.1 | 25.4 | 12.7 |
| KFWS001040 | KF40 | 54.9 | 41.2 | 34.8 | 38.1 | 19.1 |
| KFWS001065 | KF50 | 74.9 | 52.4 | 47.5 | 50.8 | 19.1 |
Vacuum Half Long Nipple
| Material Code | Flange Size | A | B | C | D |
|---|---|---|---|---|---|
| KFWL002010 | KF10 | 30.0 | 12.2 | 9.4 | 12.7 |
| KFWL002010/16 | KF10/16 | 30.0 | 17.2 | 9.4 | 12.7 |
| KFWL002016 | KF16 | 30.0 | 17.2 | 15.8 | 19.1 |
| KFWL002025 | KF25 | 40.0 | 26.2 | 22.1 | 25.4 |
| KFWL002040 | KF40 | 55.0 | 41.2 | 34.9 | 38.1 |
| KFWL002065 | KF50 | 75.0 | 52.4 | 47.6 | 50.8 |
Features
- Low leak rate: Precisely machined sealing surface with excellent sealing performance, stably maintaining high vacuum environment and ultra-low air leakage.
- Quick assembly & disassembly: Clamp /quick-release structure, no extra tools required, easy to install and remove, greatly saving pipeline maintenance time.
- Reliable material: Mainly made of 304 / 316L stainless steel, corrosion resistant, resistant to high & low temperature, compatible with most corrosive gas conditions.
- High surface finish: CNC precision turning, smooth inner wall, less dust and gas adsorption, easy cleaning for clean vacuum applications.
- Complete specifications: Multiple sizes and connection types (KF, CF, ISO etc.) available to match vacuum pipelines of various equipment.
- Robust structure: Forged or one-piece machined, vibration resistant, stable pressure bearing, not easy to deform or loose after long-term operation.
Working Principle
TheVacuum Half Nipple achieves vacuum isolation by compressing the sealing element against the metal sealing face. After both ends of the fitting are aligned and tightened, the elastic seal (FKM, copper gasket, etc.) is evenly squeezed to fill tiny gaps between metal mating surfaces and block outside air from leaking into the pipeline. During pumping of the vacuum system, internal pressure drops continuously. The pressure difference between inside and outside further compresses the sealing interface to maintain sealing and prevent gas backflow, keeping the required vacuum level. The joint body supports pipeline connection and ensures smooth gas passage.
Why Choose KINGMAN
48 MAZAK CNC Lathes
KF vacuum nipples are machined on a large CNC base that supports repeat dimensions across ongoing equipment and maintenance orders.
7-Day Standard Supply
Available standard KF vacuum fittings can be prepared in about 7 working days, useful when foreline or vacuum equipment schedules are tight.
Small Trial Orders Welcome
Start with samples or a small batch to confirm ISO-KF/NW fit and workmanship before moving into regular purchasing.
