All NW/KF style vacuum connections conform to the international ISO 2861/I standard. KF series quick release flanges also comply with Standard GB4982-85.
Other vacuum components, which may include three-way types, blind plates, metal flexible corrugated pipes, callipers and bolts, heel blocks and holders, comply with the ISO Standard 9000:2000.
They are widely used in the assorted vacuum systems and low-voltage pipe systems, such as electronic, food machinery, the petrochemical industry, and medicine machinery.
Our vacuum fittings come with plastic protective caps which help protect the NW/KF flanges from scratches and dust.
COPPER GASKET FOR CONFLAT VACUUM SYSTEM
Copper, the normal gaskets for stainless steel CF flanges are punched from 1/4-hard, high purity, oxygen-free (OFHC) copper stock, chemically cleaned and finished to be scratch and burr-free. Can be heated up to 450°C in flange assembly. Metal wire gaskets made of copper, gold or indium can be also be used.
Metal gaskets are impermeable to gases and withstand moderately high temperatures indefinitely. The CF flange is the most widely used For high vacuum and UHV applications. Many gauges, instruments, accessories and feedthroughs are available on this flange system.
ProSciTech stocks a range of indium wire.
CF systems use a copper gasket and knife-edge flanges to achieve the high vacuum seal and can operate down to 10-13 torr (10-11 Pa) and can be heated to 450°C for bake-out.
Made from SS304
- Basic non-rotatable seal flange with through or tapped holes for closing off a CF type flange
- Can be baked up to 450°C
- Requires Gasket for seal
- Requires corresponding bolt sets and gaskets to fasten and create seal
Also see DN blanking plates
CONFLAT WELD FLANGE
Conflat flange (CF) tee, stainless steel fittings
We fabricate these CF adapters for UHV systems from stainless steel tubing and knife-edge (ConFlat) flanges. The CF flange is the most widely used for high vacuum and UHV applications. Many gauges, instruments, accessories and feedthroughs are available on this flange system.
Also see DN tee pieces
DOUBLE CLAW CLAMPS FOR ISO FLANGES
for use with ISO flanges of sizes ISO50 to ISO630
Double claw clamps are used to join two clamp style flanges together to make the seal. Single claw clamps allow clamp style flanges to be bolted to mating components such as gate valves or chamber ports.
Material is chrome plated carbon steel.
|Cat. No.||ISO flange type|
|Number per flange||Length [A] (mm)||Thread [B]||Claw opening [C] (mm)|
DOUBLE WALL CLAMPS
Made from aluminium
|Cat. No.||M type||A (mm)||B (mm)||C (mm)|
The length of B is according to the bolt.