Type 67AFD
Fisher Controls
Instruction Manual
Type 67AFD Filter
February 1991
Installation WARNING
Scope of Manual This manual describes and provides instructions and parts list for the Type 67AFD filter. This filter is usually shipped installed on other equipment such as valve positioners. Instructions and parts lists for other equipment are found in separate manuals.
Product Description The Type 67AFD aluminum-body filter with drip pot (figure 1) removes dirt, moisture, and other particles from air or gas lines. This filter is commonly used in the supply pressure line to a pneumatic instrument. The filter element removes particles greater than 0.0016 inch (0.040 mm) in diameter.
Specifications Table 1 gives some general Type 67AFD filter ratings and other specifications. A nameplate (figure 2) gives additional information for a given filter as it comes from the factory.
Installing a filter where its capabilities, or those of any downstream equipment, can be exceeded may cause personal injury or property damage due to bursting of pressure-containing parts or explosion of accumulated gas. To avoid this, install the unit where: • Service conditions are within unit capabilities (including those given in table 1), • Service conditions are within applicable local, state, or federal codes or regulations, • The unit is protected from exposure to physical damage and /or corrosive substances, and • Suitable pressure-limiting or pressurerelieving devices have been installed in those instances where supply pressure is capable of exceeding the maximum allowable downstream equipment pressure.
W3710
18A6732-A Sht 1
Figure 1. Exterior View of Type 67AFD Filter
©Fisher Controls 1982; All Rights Reserved
Figure 2. Filter Nameplate
D100252X012
Introduction
Form 5202