3. CARE OF STAINLESS STEEL
Tapflo LPX series
8
3.
CARE OF STAINLESS STEEL
NOTE!
Tapflo recommends the use of an FDA-approved anti-seize compound on all
threaded connections.
3.1.
Care of stainless steel
Corrosion resistance is greatest when a layer of oxide film is formed on the surface of stainless
steel. If film is disturbed or destroyed, stainless steel becomes much less resistant to corrosion
and may rust, pit or crack.
Corrosion pitting, rusting and stress cracks may occur due to chemical attack. Use only
cleaning chemicals specified by a reputable chemical manufacturer for use with 300 series
stainless steel. Do not use excessive concentrations, temperatures or exposure times. Avoid
contact with highly corrosive acids such as hydrofluoric, hydrochloric or sulfuric. Also avoid
prolonged contact with chloride-containing chemicals, especially in presence of acid. If
chlorine-based sanitizers are used, such as sodium hypochlorite (bleach), do not exceed
concentrations of 150 ppm available chlorine, do not exceed contact time of 20 minutes, and
do not exceed temperatures of 104°F (40°C).
Corrosion discoloration, deposits or pitting may occur under product deposits or under
gaskets. Keep surfaces clean, including those under gaskets or in grooves or tight corners.
Clean immediately after use. Do not allow equipment to set idle, exposed to air with
accumulated foreign material on the surface. Corrosion pitting may occur when stray electrical
currents come in contact with moist stainless steel. Ensure all electrical devices connected to
the equipment are correctly grounded.
3.2.
Elastomer seal replacement following passivation
Passivation chemicals can damage product contact areas of equipment. Elastomers (rubber
components) are most likely to be affected. Always inspect all elastomer seals after passivation
is completed. Replace any seals showing signs of chemical attack. Indications may include
swelling, cracks, loss of elasticity or any other noticeable changes when compared with new
components.
Summary of Contents for LPX Series
Page 59: ...9 PARTS LISTS Tapflo LPX series 59 9 3 Model 25 1 to 50 1 Pump Parts B exploded view ...
Page 61: ...9 PARTS LISTS Tapflo LPX series 61 9 5 Model 50 2 to 100 1 Pump Parts A exploded view ...
Page 63: ...9 PARTS LISTS Tapflo LPX series 63 9 7 Model 50 2 to 100 1 Pump Parts B exploded view ...
Page 69: ...Tapflo LPX series 69 ...