Connection Style Connection Style |
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| Quick Clamp |
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| Flanged |
Maximum Vacuum Maximum Vacuum |
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Sterilize With Sterilize With |
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Specifications Met Specifications Met |
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High-Vacuum Sights for Quick-Clamp Fittings
Designed with quick-clamp (KF) connections, these sights connect to a port on a high-vacuum chamber, so you can monitor what's happening inside. A sleeve seals the glass window to the body of the sight to prevent leaks. To connect to your chamber, you'll need a clamp and a ring (sold separately). Not for use in pressure applications.
Window | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Trade Number | For Flange OD | For Tube OD | High Vacuum Connection Type | Max. Vacuum | Dia. | Material | Max. Temp., °F | Each | |
304 Stainless Steel | |||||||||
| 16 | 1.18" | 3/4" | ISO-KF | 1 × 10 -9 torr @ 72° F | 5/8" | Glass | 390° | 0000000 | 0000000 |
| 25 | 1.57" | 1" | ISO-KF | 1 × 10 -9 torr @ 72° F | 7/8" | Glass | 390° | 0000000 | 000000 |
| 40 | 2.16" | 1 1/2" | ISO-KF | 1 × 10 -9 torr @ 72° F | 7/8" | Glass | 390° | 0000000 | 000000 |
| 50 | 2.95" | 2" | ISO-KF | 1 × 10 -9 torr @ 72° F | 1 3/8" | Glass | 390° | 0000000 | 000000 |
| Trade Number | For Flange OD | For Tube OD | Material | Max. Vacuum | High Vacuum Connection Type | Each | |
| 10, 16 | 1.18" | 1/2", 3/4" | Aluminum | 1 × 10^-7 torr @ 72° F | ISO-KF | 00000000 | 00000 |
| 25 | 1.57" | 1" | Aluminum | 1 × 10^-7 torr @ 72° F | ISO-KF | 0000000 | 00000 |
| 40 | 2.16" | 1 1/2" | Aluminum | 1 × 10^-7 torr @ 72° F | ISO-KF | 0000000 | 00000 |
| 50 | 2.95" | 2" | Aluminum | 1 × 10^-7 torr @ 72° F | ISO-KF | 0000000 | 00000 |
| Trade Number | For Flange OD | For Tube OD | Inner Ring Material | Max. Vacuum | High Vacuum Connection Type | Each | |
| 16 | 1.18" | 3/4" | 304 Stainless Steel | 1 × 10^-7 torr @ 72° F | ISO-KF | 00000000 | 00000 |
| 25 | 1.57" | 1" | 304 Stainless Steel | 1 × 10^-7 torr @ 72° F | ISO-KF | 0000000 | 0000 |
| 40 | 2.16" | 1 1/2" | 304 Stainless Steel | 1 × 10^-7 torr @ 72° F | ISO-KF | 0000000 | 00000 |
| 50 | 2.95" | 2" | 304 Stainless Steel | 1 × 10^-7 torr @ 72° F | ISO-KF | 0000000 | 00000 |
High-Vacuum Flanged Sights
Add a window to your high-vacuum system. With a pane of borosilicate glass sealed inside a high-vacuum CF flange, these sights bolt onto vacuum chambers, tee fittings, and manifolds. Use a copper gasket (sold separately) to create a seal. Not for use with pressure. To illuminate dark interiors, attach an optional light to the flange with set screws.
Window | Bolt Holes | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Trade Number | Flange OD | For Tube OD | High Vacuum Connection Type | Max. Vacuum | Dia. | Material | Bolt Circle Dia. | No. of | Dia. | Max. Temp., °F | Each | |
304 Stainless Steel | ||||||||||||
| 16 | 1 21/64" | 3/4" | CF | 1 × 10 -11 torr @ 72° F | 5/8" | Glass | 1 1/16" | 6 | 11/64" | 750° | 0000000 | 0000000 |
| 40 | 2 3/4" | 1 1/2" | CF | 1 × 10 -11 torr @ 72° F | 1 3/8" | Glass | 2 5/16" | 6 | 17/64" | 750° | 0000000 | 000000 |
| 63 | 4 1/2" | 2 1/2" | CF | 1 × 10 -11 torr @ 72° F | 2 5/8" | Glass | 3 5/8" | 8 | 21/64" | 750° | 0000000 | 000000 |
| 100 | 6" | 4" | CF | 1 × 10 -11 torr @ 72° F | 3 7/8" | Glass | 5 1/8" | 16 | 21/64" | 750° | 0000000 | 000000 |
Lights for High-Vacuum Flanged Sights
Illuminate the interior of your high-vacuum chamber to clearly observe what’s inside. These lights mount to the outside of CF flanged sights with three set screws. They’re shaped like a ring, allowing you to see into the chamber through the middle. Unlike a flashlight or gooseneck lamp, they won’t block or create glare on your viewing port.
| For Flange Trade Number | For Flange OD | For High Vacuum Connection Type | ID | Brightness, lumens | Light Appearance | Wattage | Voltage | Bulb Rated Life, hrs. | Housing Material | Electrical Connection Type | Mount Type | Mounting Hardware Included | Each | |
Built-In LED Bulbs | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 40 | 2 3/4" | CF | 1 1/8" | 960 | Neutral (4000K) | 17.4W | 120V AC | 30,000 | Anodized Aluminum | Three-Prong Plug | Set Screw | Yes | 0000000 | 0000000 |
| 63 | 4 1/2" | CF | 2 13/32" | 960 | Neutral (4000K) | 17.4W | 120V AC | 30,000 | Anodized Aluminum | Three-Prong Plug | Set Screw | Yes | 0000000 | 000000 |
| 100 | 6" | CF | 3 9/16" | 960 | Neutral (4000K) | 17.4W | 120V AC | 30,000 | Anodized Aluminum | Three-Prong Plug | Set Screw | Yes | 0000000 | 000000 |
Flow Sights for High Vacuum
Peer through the glass on these flow sights to see what’s happening in your high-vacuum line. These flow sights are often used to check the progress of fluids, gases, or probes entering the vacuum system, or to confirm that contaminants have been pumped out. They can also be used as an insulator or low-voltage electrical break on high-vacuum tube lines. The body is 304 stainless steel, which emits less gas into a vacuum than other types of metal and does not corrode in water. The glass tube and stainless steel body are fused together to eliminate leaks. These flow sights are also known as glass tube adapters. Not for use in pressure applications.
Bolt flow sights with a flanged connection to another flange with a copper gasket (sold separately) in between. These flanges are also known as CF, Conflat, and UHV connections.
Join flow sights with quick-clamp connections to your line with a clamp and a ring (sold separately). They are also known as KF, QF, and NW fittings.
Flow sights with a tube connection can be capped, plugged, or twisted onto a line with quick-clamp adapters (sold separately).
Window | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| For Tube OD | Flange OD | Trade Number | High Vacuum Connection Type | Temp. Range, °F | Dia. | Lg. | End-to-End Lg. | Ht. | Max. Vacuum | Each | |
304 Stainless Steel Body | |||||||||||
| 3/4" | 1 21/64" | 16 | CF | -320° to 750° | 3/4" | 1" | 4 3/8" | 1 21/64" | 1 × 10 -10 torr @ 72° F | 0000000 | 0000000 |
| 3/4" | 1 21/64" | 16 | CF | -320° to 750° | 3/4" | 6" | 9 3/8" | 1 21/64" | 1 × 10 -10 torr @ 72° F | 0000000 | 000000 |
| 1 1/2" | 2 3/4" | 40 | CF | -320° to 750° | 1 1/2" | 1" | 4 3/8" | 2 3/4" | 1 × 10 -10 torr @ 72° F | 0000000 | 000000 |
| 1 1/2" | 2 3/4" | 40 | CF | -320° to 750° | 1 1/2" | 6" | 9 3/8" | 2 3/4" | 1 × 10 -10 torr @ 72° F | 0000000 | 000000 |
| 2 1/2" | 4 1/2" | 63 | CF | -320° to 750° | 2 1/2" | 1" | 5 1/8" | 4 1/2" | 1 × 10 -10 torr @ 72° F | 0000000 | 000000 |
| 2 1/2" | 4 1/2" | 63 | CF | -320° to 750° | 2 1/2" | 6" | 10 1/8" | 4 1/2" | 1 × 10 -10 torr @ 72° F | 0000000 | 00000000 |
| 4" | 6" | 100 | CF | -320° to 750° | 4" | 1" | 5 1/8" | 6" | 1 × 10 -10 torr @ 72° F | 0000000 | 00000000 |
| 4" | 6" | 100 | CF | -320° to 750° | 4" | 6" | 10 1/8" | 6" | 1 × 10 -10 torr @ 72° F | 0000000 | 00000000 |
Window | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| For Tube OD | Flange OD | Trade Number | High Vacuum Connection Type | Temp. Range, °F | Dia. | Lg. | End-to-End Lg. | Ht. | Window Material | Max. Vacuum | Each | |
304 Stainless Steel Body | ||||||||||||
| 3/4" | 1.18" | 16 | ISO-KF | 0° to 390° | 3/4" | 1" | 4 3/8" | 1 3/16" | Glass | 1 × 10 -8 torr @ 72° F | 0000000 | 0000000 |
| 3/4" | 1.18" | 16 | ISO-KF | 0° to 390° | 3/4" | 6" | 9 3/8" | 1 3/16" | Glass | 1 × 10 -8 torr @ 72° F | 0000000 | 000000 |
| 1" | 1.57" | 25 | ISO-KF | 0° to 390° | 1" | 1" | 4 3/8" | 1 9/16" | Glass | 1 × 10 -8 torr @ 72° F | 0000000 | 000000 |
| 1" | 1.57" | 25 | ISO-KF | 0° to 390° | 1" | 6" | 9 3/8" | 1 9/16" | Glass | 1 × 10 -8 torr @ 72° F | 0000000 | 000000 |
| 1 1/2" | 2.16" | 40 | ISO-KF | 0° to 390° | 1 1/2" | 1" | 4 3/8" | 2 3/16" | Glass | 1 × 10 -8 torr @ 72° F | 0000000 | 000000 |
| 1 1/2" | 2.16" | 40 | ISO-KF | 0° to 390° | 1 1/2" | 6" | 9 3/8" | 2 3/16" | Glass | 1 × 10 -8 torr @ 72° F | 0000000 | 000000 |
| 2" | 2.95" | 50 | ISO-KF | 0° to 390° | 2" | 1" | 5 1/8" | 3" | Glass | 1 × 10 -8 torr @ 72° F | 0000000 | 000000 |
| 2" | 2.95" | 50 | ISO-KF | 0° to 390° | 2" | 6" | 10 1/8" | 3" | Glass | 1 × 10 -8 torr @ 72° F | 0000000 | 000000 |
Window | ||||||||||||
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| For Tube OD | Tube OD | Trade Number | Flange OD | High Vacuum Connection Type | Max. Temp., °F | Dia. | Lg. | End-to-End Lg. | Ht. | Max. Vacuum | Each | |
304 Stainless Steel Body | ||||||||||||
| 3/4" | 3/4" | 16 | 1.18" | ISO-KF | 300° | 1/2" | 3" | 5 1/4" | 1 3/16" | 1 × 10 -8 torr @ 72° F | 000000 | 000000 |
| 3/4" | 3/4" | 16 | 1.18" | ISO-KF | 300° | 3/4" | 3" | 5 1/4" | 1 3/16" | 1 × 10 -8 torr @ 72° F | 0000000 | 00000 |
| 1" | 1" | 25 | 1.57" | ISO-KF | 300° | 1" | 3" | 5 1/4" | 1 9/16" | 1 × 10 -8 torr @ 72° F | 0000000 | 00000 |
| 1 1/2" | 1 1/2" | 40 | 2.16" | ISO-KF | 300° | 1 1/2" | 3" | 5 1/2" | 2 3/16" | 1 × 10 -8 torr @ 72° F | 0000000 | 000000 |
| For Tube OD | For Flange OD | Trade Number | High Vacuum Connection Type | Material | Nut Material | Temp. Range, °F | Max. Vacuum | Specifications Met | Each | |
with Wing Nut | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| 1/2" | 1.18" | 10 | ISO-KF | Aluminum | Zinc Alloy | 0° to 300° | 1 × 10 -7 torr @ 72° F | ISO 2861 | 00000000 | 00000 |
| 1/2", 3/4" | 1.18" | 10, 16 | ISO-KF | Aluminum | Zinc Alloy | 0° to 300° | 1 × 10 -7 torr @ 72° F | ISO 2861 | 00000000 | 0000 |
| 3/4" | 1.18" | 16 | ISO-KF | Aluminum | Zinc Alloy | 0° to 300° | 1 × 10 -7 torr @ 72° F | ISO 2861 | 00000000 | 0000 |
| 1" | 1.57" | 25 | ISO-KF | Aluminum | Zinc Alloy | 0° to 300° | 1 × 10 -7 torr @ 72° F | ISO 2861 | 0000000 | 00000 |
| 1 1/2" | 2.16" | 40 | ISO-KF | Aluminum | Zinc Alloy | 0° to 300° | 1 × 10 -7 torr @ 72° F | ISO 2861 | 0000000 | 00000 |
| 2" | 2.95" | 50 | ISO-KF | Aluminum | Zinc Alloy | 0° to 300° | 1 × 10 -7 torr @ 72° F | ISO 2861 | 0000000 | 00000 |
Material | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| For Tube OD | For Flange OD | Trade Number | High Vacuum Connection Type | O-Ring | Inner Ring | Temp. Range, °F | Max. Vacuum | Specifications Met | Each | |
| 3/4" | 1.18" | 16 | ISO-KF | Fluoroelastomer Rubber | 304 Stainless Steel | 0° to 300° | 1 × 10 -7 torr @ 72° F | ISO 2861 | 00000000 | 00000 |
| 1" | 1.57" | 25 | ISO-KF | Fluoroelastomer Rubber | 304 Stainless Steel | 0° to 300° | 1 × 10 -7 torr @ 72° F | ISO 2861 | 0000000 | 0000 |
| 1 1/2" | 2.16" | 40 | ISO-KF | Fluoroelastomer Rubber | 304 Stainless Steel | 0° to 300° | 1 × 10 -7 torr @ 72° F | ISO 2861 | 0000000 | 00000 |
| 2" | 2.95" | 50 | ISO-KF | Fluoroelastomer Rubber | 304 Stainless Steel | 0° to 300° | 1 × 10 -7 torr @ 72° F | ISO 2861 | 0000000 | 00000 |
Quick Clamp Tube Connection | |||||||||||
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| For Tube OD (Quick Connect) | For Tube OD | Flange OD | Trade Number | High Vacuum Connection Type | Wall Thick. | Material | O-Ring Material | Temp. Range, °F | Max. Vacuum | Each | |
| 3/4" | 1" | 1.57" | 25 | ISO-KF | 0.055" | 304 Stainless Steel | Buna-N Rubber | 0° to 175° | 1 × 10 -8 torr @ 72° F | 0000000 | 000000 |
| 1" | 1" | 1.57" | 25 | ISO-KF | 0.055" | 304 Stainless Steel | Buna-N Rubber | 0° to 175° | 1 × 10 -8 torr @ 72° F | 0000000 | 000000 |
| 1 1/2" | 1 1/2" | 2.16" | 40 | ISO-KF | 0.055" | 304 Stainless Steel | Buna-N Rubber | 0° to 175° | 1 × 10 -8 torr @ 72° F | 0000000 | 000000 |
| For Tube OD | Wall Thick. | Material | O-Ring Material | Temp. Range, °F | Max. Vacuum | Each | |
| 1/2" | 0.078" | 304 Stainless Steel | Viton® Fluoroelastomer Rubber | 0° to 175° | 1 × 10 -8 torr @ 72° F | 0000000 | 0000000 |
| 3/4" | 0.212" | 304 Stainless Steel | Viton® Fluoroelastomer Rubber | 0° to 175° | 1 × 10 -8 torr @ 72° F | 0000000 | 000000 |
| 1" | 0.18" | 304 Stainless Steel | Viton® Fluoroelastomer Rubber | 0° to 175° | 1 × 10 -8 torr @ 72° F | 0000000 | 000000 |
| 1 1/2" | 0.242" | 304 Stainless Steel | Viton® Fluoroelastomer Rubber | 0° to 175° | 1 × 10 -8 torr @ 72° F | 0000000 | 000000 |