Page 241 - APPLIED PROCESS DESIGN FOR CHEMICAL AND PETROCHEMICAL PLANTS, Volume 1, 3rd Edition

Pumping of Liquids 211

Table 3-7
Pump Materials of Construction
Table materials are for general use, specific service experience
is preferred when available
I
Casing & Impeller & Shaft Type of
Liquid Wear Rings Wear Rings Shaft Sleeves Seal Seal Cage Gland Remarks
Ammonia, Cast Iron Cast Iron Carbon Steel Carbon Steel Mechanical ........... ?IIall. Iron NOTE:
Anhydrous & Materials of
Aqua Construction
shown will be
revised for
some jobs.
Benzene Cast Iron Cast Iron Carbon Steel Nickel Moly. Ring Cast Iron Mall. Iron
Steel Packing
Brine (Sodium Ni-Res!st* Ni-Resist* K Mone! K l\fonel Ring Ni-Resist** Ni-Resist** "Cast Iron
Chloride) Packing acceptable.
**Malleable
Iron
acceptable.
Butadiene Casing: C. Impeller: Carbon Steel 13% Mechanical . . . . . . . . ... Carbon Steel
Steel-Rings: C.1.-Rings: Chrome
C.J. C. Steel Steel
Carbon Cast Iron Cast Iron Carbon Steel Carbon Steel Mechanical ........ . . . Mall. Iron
Tetrachloride
Caustic, 5 0% Mi�co C Misco C 18-8 Misco C Ring Misco C Carbon Steel Misco C
(Max. Temp. Stainless Packing manufactured
200° F.) Steel by Michigan
Steel Cast-
ing Com � any.
29 Cr-9 i
Stainless
Steel, or
equal.
Caustic, 50% Nickel Nickel Nickel or Nickel Ring Nickel Nickel
(Over 200° F) 18-8 Stain- Packing
& 73% less Steel
Ca us tic, 10% Cast Iron 23% Cr. 23% Cr. 23% Cr. Ring Cast Iron ........... Specifica-
(with some 52% Ni 52% Ni 52% Ni Packing tions for 50%
sodium Stainless Stainless Stainless Caustic
chloride) Steel Steel Steel (Maximum
Temperature
200° FJ also
used.
Ethylene Cast Steel Carbon Steel Carbon Steel Carbon Steel Mechanical Cast Iron Mall. Iron
Ethylene Cast Iron Cast Tron Steel K Mone! Mechanical . . . . . . . . . . . K Mone!
Dichloride
Ethylene Glycol Bronze Bronze 18-8 18-8 Ring . . . ' . . . . . . Bronze
Stainless Stainless Packing
Steel Steel
Hydrochloric Impregnated Impregnated 18-8 Impregnated Mechanical . . . . . ...... Impregnated
Acid, 32% Carbon Carbon Stainless Carbon Carbon
Steel
Hydrochloric Rubber Hard Carbon Steel Rubber or Ring Rubber Rubber
Acid, 32% Lined Rubber Plastic Packing
(Alternate) C. Iron
Methyl Chloride Cast Iron Cast Iron 18-8 18-8 Mechanical . . . . . . . . . . . Mall. Iron
Stainless Stainless
Steel Steel
Propylene Casing: Imp.: Carbon Steel Carbon Steel Mechanical Cast Iron Mall. Iron
C. Steel- C.I .-Rings:
Rings: C.l. C. St!
Sulfuric Acid, Hard Special Carbon Steel 1-lastelloy C Ring Special Special
Below ,55% Rubber Rubber Packing Rubber Rubber
Lined C.I.
Sulfuric Acid, Cast Si-Iron Si-Iron Type 316 Si-Iron Ring Teflon Si-Iron
55 to 95% Stn , Stl. Packing
Sulfuric Acid, Cast Iron Cast Iron Carbon Steel 13% Cr Mechanical . . . . . . . .... Mall. Iron
Above 95%
Styrene Cast Iron Cast Iron Carbon Steel 13% Ring Cast Iron Mall. Iron
Chrome Packing
Steel
Water, River Cast Iron Bronze 18-8 Bronze Mechanical Cast Iron Mall. Iron
Stainless
Steel
Water, Sea I Casing, Impeller: K Mone! K Mone! or Ring Mone! or Monel or
Alloy 20 SS
1-2% Ni,
Rings:
Cr 3-0.5% Mon el (Aged) Alloy 20 SS Packing Alloy 20 SS
Cast Iron S-Monel
Rings: Ni-
Resist, 28
� .