High differential pressure capability – Mott porous metal filter elements can be designed to withstand differ-ential pressures over 3000 psi.

Cleanable filter elements– As part of permanent filtration installations, Mott elements can be effectively cleaned in situ in many applications. This is accomplished by a blowback system for gaseous applications or a back-wash / backflush system for liquid applications. Mott engineers are highly experienced in designing and constructing such systems. Examples of these process filters are the LSI filters for liquid / solids applications and the GSV filter for gas / solids applications. Contaminants can also be removed chemically by means of solvents, caustic wash, acid wash, as well as water, steam and air flush. Ultrasonic cleaning is used to remove chemically inert materials. Controlled-atmosphere fluid bed furnaces may also be used. Mott precision porous metal filter elements may be cleaned and subsequently kept in continuous operation for years, where other types of elements would have to be replaced several times.

Materials of construction. Standard materials of construction for rolled and welded elements are 316L stainless steel porous media, with 316 stainless steel hardware. Alternate materials are also available.

Element diameters. Diameters, other than the standards listed, are available on special order. Consult the factory to discuss your specific requirements. Standard diameters are: 1", 1⁄÷™", 2", 2⁄÷™", 2‹÷¢" and 3".Hex nipple open end connections. Hex nipple sizes, other than the standards shown, are available on special order. Alternate sizes available:

In addition to precision rolled and welded elements, Mott Corporation supplies elements made with Mott seamless porous tube media, which are available in smaller diameters from ⁄÷¢" to 1" standard, with specials up to 2" diameter.

• 2 1/2" diameter
• 10" - 20" - 30" nominal lengths
• 316L stainless steel porous media
• 300 Series stainless steel hardware
• Standard:
  0.039" wall media grade 0.2
  0.047" wall media grades 0.5, 1
  0.062" wall media grades 2, 5, 10, 20
  0.078" wall media grade 40
  0.093" wall media grade 100
• Media grades in liquid / solids separation applications:
  0.2, 0.5, 1, 2, 5, 10, 20, 40, and 100

• Standard:
  Outside-in pressure for media grades 0.2 - 100 is 50 psi
  Inside-out* pressure for media grades 0.2 - 100 os 40 psi
• Spring reinforced "R"
  Outside-in pressure for media grades 0.2 - 40 is 250 psi
  Outside-in pressure for media grade 100 is 1580 psi
  Inside-out* pressure for media grades 0.2 - 100 is 40 psi

The standard mounting is an O-Ring seal flange, designated as -Q17-. Elements are top loaded and secured into the tube sheet by a hold down plate (see Tube Bundle Assembly below). PDS elements provide a reliable, light-weight alternative to 1" diameter heavy wall seamless

• Neoprene
• Teflon*
• Viton
• Buna-N
• Ethylene Propylene (EPDM)
• Silicone
• Kalrez*
• Teflon* Encapsulated Viton