Quartz Glass O-Ring Hinge Clamp Viewport Blank Flange KF16 NW16 These Quartz blank flanges are designed to withstand temperatures between -15°C and 200°C. They are capable of reaching vacuum down to 7.5 x 10-9 Torr and are resilient to over pressure up to 375 Torr. For proper pressure vacuum seal they require the use of an over pressure centering ring and must be used in conjunction with only plastic hinge clamps not metal. Centering ring and plastic hinge clamp not provided. These Quartz viewports blank flanges are perfect inspection windows and can be used in a variety of applications. Borosilicate viewports blank flanges are also available for applications requiring lower temperature thresholds. Quartz Glass Viewport/Blank Flange KF-16 Material: Quartz Thermal Range: -15°C to 200°C Common Dimensions Diameter:30mm Thickness:5mm

Borosilicate Glass O-Ring Hinge Clamp Viewport Blank Flange KF16 NW16 These Borosilicate blank flanges are designed to withstand temperatures between -15°C and 150°C. They are capable of reaching vacuum down to 7.5 x 10-9 Torr and are resilient to over pressure up to 375 Torr. For proper pressure vacuum seal they require the use of an over pressure centering ring and must be used in conjunction with only plastic hinge clamps not metal. Centering ring and plastic hinge clamp not provided. These Borosilicate viewports blank flanges are perfect inspection windows and can be used in a variety of applications. Quartz viewports blank flanges are also available for applications requiring higher temperature thresholds. Borosilicate Glass Viewport/Blank Flange KF-16 Material: Borosilicate Thermal Range: -15°C to 150°C Common Dimensions Diameter:30mm Thickness:5mm

Borosilicate Glass O-Ring Hinge Clamp Viewport Blank Flange KF25 NW25 These Borosilicate blank flanges are designed to withstand temperatures between -15°C and 150°C. They are capable of reaching vacuum down to 7.5 x 10-9 Torr and are resilient to over pressure up to 375 Torr. For proper pressure vacuum seal they require the use of an over pressure centering ring and must be used in conjunction with only plastic hinge clamps not metal. These Borosilicate viewports blank flanges are perfect inspection windows and can be used in a variety of applications. Quartz viewports blank flanges are also available for applications requiring higher temperature thresholds. Borosilicate Glass Viewport/Blank Flange KF-25 Material: Borosilicate Thermal Range: -15°C to 150°C Common Dimensions Diameter:40mm Thickness:5mm

Quartz Glass O-Ring Hinge Clamp Viewport Blank Flange KF25 NW25These Quartz blank flanges are designed to withstand temperatures between -15°C and 200°C. They are capable of reaching vacuum down to 7.5 x 10-9 Torr and are resilient to over pressure up to 375 Torr. For proper pressure vacuum seal they require the use of an over pressure centering ring and must be used in conjunction with only plastic hinge clamps not metal. Centering ring and plastic hinge clamp not provided. These Quartz viewports blank flanges are perfect inspection windows and can be used in a variety of applications. Borosilicate viewports blank flanges are also available for applications requiring lower temperature thresholds. Quartz Glass Viewport/Blank Flange KF-25Material: Quartz Thermal Range: -15°C to 200°C Common Dimensions Diameter:40mm Thickness:5mm

Borosilicate Glass O-Ring Hinge Clamp Viewport Blank Flange KF40 NW40 These Borosilicate blank flanges are designed to withstand temperatures between -15°C and 150°C. They are capable of reaching vacuum down to 7.5 x 10-9 Torr and are resilient to over pressure up to 375 Torr. For proper pressure vacuum seal they require the use of an over pressure centering ring and must be used in conjunction with only plastic hinge clamps not metal. These Borosilicate viewports blank flanges are perfect inspection windows and can be used in a variety of applications. Quartz viewports blank flanges are also available for applications requiring higher temperature thresholds. Borosilicate Glass Viewport Blank Flange KF-40 Material: Borosilicate Thermal Range: -15°C to 150°C Common Dimensions Diameter:55mm Thickness:5mm

Quartz Glass O-Ring Hinge Clamp Viewport Blank Flange KF40 NW40 These Quartz blank flanges are designed to withstand temperatures between -15°C and 200°C. They are capable of reaching vacuum down to 7.5 x 10-9 Torr and are resilient to over pressure up to 375 Torr. For proper pressure vacuum seal they require the use of an over pressure centering ring and must be used in conjunction with only plastic hinge clamps not metal. Centering ring and plastic hinge clamp not provided. These Quartz viewports blank flanges are perfect inspection windows and can be used in a variety of applications. Borosilicate viewports blank flanges are also available for applications requiring lower temperature thresholds. Quartz Glass Viewport/Blank Flange KF-40 Material: Quartz Thermal Range: -15°C to 200°C Common Dimensions Diameter:55mm Thickness:5mm

Borosilicate Glass O-Ring Hinge Clamp Viewport Blank Flange KF50 NW50 These Borosilicate blank flanges are designed to withstand temperatures between -15°C and 150°C. They are capable of reaching vacuum down to 7.5 x 10-9 Torr and are resilient to over pressure up to 375 Torr. For proper pressure vacuum seal they require the use of an over pressure centering ring and must be used in conjunction with only plastic hinge clamps not metal. These Borosilicate viewports blank flanges are perfect inspection windows and can be used in a variety of applications. Quartz viewports blank flanges are also available for applications requiring higher temperature thresholds. Borosilicate Viewport/Glass Blank Flange KF-50 Material: Borosilicate Thermal Range: -15°C to 150°C Common Dimensions Diameter:75mm Thickness:5mm

Quartz Glass O-Ring Hinge Clamp Viewport Blank Flange KF50 NW50 These Quartz blank flanges are designed to withstand temperatures between -15°C and 200°C. They are capable of reaching vacuum down to 7.5 x 10-9 Torr and are resilient to over pressure up to 375 Torr. For proper pressure vacuum seal they require the use of an over pressure centering ring and must be used in conjunction with only plastic hinge clamps not metal. Centering ring and plastic hinge clamp not provided. These Quartz viewports blank flanges are perfect inspection windows and can be used in a variety of applications. Borosilicate viewports blank flanges are also available for applications requiring lower temperature thresholds. Quartz Glass Viewport/Blank Flange KF-50 Material: Quartz Thermal Range: -15°C to 200°C Common Dimensions Diameter:75mm Thickness:5mm