*mydirectindustry

Catalogs
VAT Vakuumventile AG
310 - Flange connections ISO-KF

310 - Flange connections ISO-KF

Product catalog summary

Overview: This document provides technical specifications and ordering information for various components used in vacuum systems, specifically focusing on flange connections, seals, and throttle valves from VAT Vakuumventile AG.

Specifications:

Flange Connections: ISO-KF Series 31 includes clamps, centering rings, blank-off flanges, and weld neck flanges. Materials include aluminum and stainless steel, with seals made of FKM (VITON) and indium.
Temperature and Leak Rate: Maximum temperature for FKM seals is 200°C, while indium seals are suitable up to 60°C. Helium leak rates are <1 x 10^-9 mbar ls^-1 for FKM and <1 x 10^-10 mbar ls^-1 for indium.
Sealing Force: Ranges from 10-50 N per cm for FKM and 50-500 N per cm for indium seals.

Components:

Clamps and Screws: Clamps are made of aluminum, and screws are nickel-plated steel. Ordering numbers are provided for different sizes.
Blank-off Flanges: Available in various sizes with inner rings made of stainless steel and outer rings of aluminum.
Soft-start Throttle Valves: Designed to reduce turbulence in pump forelines, these valves close quickly when roughing starts and open at a differential pressure of approximately 15 mbar. They are made from materials like EN AW-6082 and AISI 301/303.

Ordering Information: Detailed ordering numbers are provided for each component, categorized by size and material.

Key Considerations:

Ensure compatibility of materials and seals with operating conditions.
Consider maximum temperature and leak rate requirements for specific applications.
Follow proper installation procedures to maintain system integrity and performance.

Catalog excerpts

Flange connections ISO-KF Clamp Claw Centering ring Blank-off flange Weld neck flange Metal seal (indium, max. 60°C) Soft-start throttle Suitable flange material Leak rate for helium (mbar ls-1) Sealing force (N per cm sealing line) A: aluminum E: stainless steel Maximum values: depending on operating conditions and sealing materials

Open the catalog to page 1

Series 31 Clamp for seal made of FKM (VITON) and indium DN mm inch Ordering numbers clamp: aluminim screws: nickel-plated steel Claw with screw and washer DN mm inch Ordering numbers claw: aluminum screw, washer: stainless steel Centering ring with O-ring made of FKM (VITON) DN Ordering numbers Ordering numbers stainless steel

Open the catalog to page 2

Flange connections ISO-KF stainless steel *) minimum dimension Weld-neck flange short or long DN stainless steel Metal seal indium DN mm inch inner ring: stainless steel outer ring: aluminum Max. temperature 60°C, multiple use with VAT clamps

Open the catalog to page 3

Soft-start throttle valve Series 31 from chamber throttle flaps For reduction of turbulence in pump forelines during pumpdown Protection device against When mounting them between two ISO-KF flanges (instead of a centering ring), the open flaps must be orientated against the air flow in the vacuum line. When the roughing system goes into operation, a strong air flow occurs in the forevacuum line, which immediately closes the valve and reduces the pipe section by about 99%. When reaching a differential pressure of approx. 15 mbar, the valve opens abruptly and leaves the pipe section nearly unobstructed...

Open the catalog to page 4

310 - Flange connections ISO-KF

310 - Flange connections ISO-KF

Catalog excerpts

All VAT Vakuumventile AG catalogs and technical brochures