Compare Model Drawings, CAD & Specs Component Type Flange Size Material Seal Material Inner Diameter Availability Price
$58
In Stock
Centering Ring NW63 304 Stainless Steel Viton 67 mm
In Stock
$75
In Stock
Centering Ring NW80 304 Stainless Steel Viton 80 mm
In Stock
$75
In Stock
Centering Ring NW100 304 Stainless Steel Viton 99 mm
In Stock
$91
In Stock
Centering Ring NW160 304 Stainless Steel Viton 150 mm
In Stock
$165
In Stock
Centering Ring NW250 304 Stainless Steel Viton 258 mm
In Stock
$1,225
In Stock
Centering Ring NW400 304 Stainless Steel Viton 395 mm
In Stock
$34
In Stock
Centering Ring NW63 Aluminum Viton 67 mm
In Stock
$41
In Stock
Centering Ring NW80 Aluminum Viton 80 mm
In Stock
$41
In Stock
Centering Ring NW100 Aluminum Viton 99 mm
In Stock
$54
In Stock
Centering Ring NW160 Aluminum Viton 150 mm
In Stock
$34
In Stock
Centering Ring NW63 Aluminum Buna-N 67 mm
In Stock
$41
In Stock
Centering Ring NW80 Aluminum Buna-N 80 mm
In Stock
$48
In Stock
Centering Ring NW100 Aluminum Buna-N 99 mm
In Stock
$54
In Stock
Centering Ring NW160 Aluminum Buna-N 150 mm
In Stock
$200
In Stock
Centering Ring with Screen NW100 Stainless Steel Viton 99 mm
In Stock

Specifications

  • Component Type
    Centering Ring Seal Assembly
  • Series
    Series 76

Features

ISO Universal Vacuum Flange System

ISO-MF vacuum flange components are a vacuum flanging system for 63 mm to 1000 mm fittings. The dimension criteria are based on requirements established by the International Standards Organization (ISO). There are two flange styles: ISO-MF (multi-fastener flange) and ISO-BF (bolted flange).

There are several advantages in the use of ISO-MF components. The seal is on a symmetrical centering ring that interfaces with two identical flanges allowing for rotation. In addition, ISO-MF flanges are more compact than ASA flanges, which were designed for pressure and are unnecessarily massive for vacuum use.

ISO-MF vacuum flanges and components are made of type 304 stainless steel. Centering ring and seal assemblies are available with an aluminum centering ring and spacer ring, or with a stainless centering ring and an aluminum spacer ring. Rotatable bolt rings and clamps are made of aluminum alloy. Retaining rings are made of steel. Flange seal surfaces are carefully machined and inspected for defects.