III. Pump Material Selection
A. Plunger Pumps
The following material selection charts; TABLE 2 (for plunger pumps) and TABLE 3 (for piston pumps), are general recommendations. For more detailed or alternate recommendations, please consult WGI.
Material Selection Chart for Plunger PumpsLiquid |
R |
Liquid |
Valves |
Plungers |
Packing |
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Description |
E |
End |
"J" |
"V" |
Braid |
Thd |
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F |
Style |
Style |
Style |
Gland |
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Amine |
(9) |
(7) |
(3) |
(4) |
(4) |
(4) |
(6) |
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DEA |
CS |
D/CD, H/TD |
HS |
NA |
SF = 4511-4 |
232 |
CS or |
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CF8M SS |
SSF = 4516-4 |
DI |
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MEA |
(1) |
CS |
D/CD, H/TD |
HS |
NA |
SF = 6618-4 |
232 |
CS or |
|
CF8M SS |
SSF = 1043-4 |
DI |
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Carbon Dioxide |
(7) |
(3) |
(4) |
(4) |
(4) |
(6) |
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Dry or Wet |
(5) |
CS |
D/CD, H/TD |
HC/HT |
NA |
SF=805-4 |
8921-K |
Temp. |
|
CF8M SS |
Var. |
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Condensate |
(5) |
(7) |
(3) |
(4) |
(4) & (9) |
(4) |
(6) |
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n-Butane/iso-Butane |
CS or |
D/CD, H/TD |
HC/HT |
845 |
SF=809-4 |
238 |
CS or |
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SS |
CF8M SS |
SSF=1068-4 |
DI |
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Ethane/Methane |
CS or |
D/CD, H/TD |
HC/HT |
845 |
SF=809-4 |
8921-K |
CS or |
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SS |
CF8M SS |
SSF=1068-4 |
DI |
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Liquid Propane Gas |
LPG |
CS or |
D/CD, H/TD |
HC/HT |
838/835 |
SF=809-4 |
217 |
Temp. |
|
or Natural Gas Liquid |
NGL |
SS |
CF8M SS |
SSF=1068-4 |
Var. |
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Lean Oil |
CS or |
D/CD, H/TD |
HC/HT |
NA |
SF=6625-4 |
217 |
CS or |
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SS |
CF8M SS |
SSF=1073-4 |
DI |
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Fuel Oil |
(7) |
(3) |
(4) |
(4) |
(4) |
(6) |
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Diesel / Kerosene |
CS |
D/CD, H/TD |
HC/HT |
838/835 |
SF=809-4 |
CS or |
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CF8M SS |
SSF=1068-4 |
DI |
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Glycol |
(7) |
(3) |
(4) |
(4) |
(4) |
(6) |
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Ethylene/DiEthylene |
CS |
H/TD |
HC/HT |
NA |
SF=809-4 |
217 |
CS or |
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CF8M SS |
SSF=1068-4 |
DI |
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Oil |
(7) |
(3) |
(4) |
(4) |
(4) |
(6) |
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Crude, Clean |
CS |
D/CD, H/TD |
HC/HT |
838/835 |
SF=809-4 |
238 |
CS or |
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w/CF8M SS |
SSF=1068-4 |
DI |
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Crude w/Solids |
CS |
ARS |
HT |
NA |
NA |
8921-K |
CS or |
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w/17-4PH SS |
DI |
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Crude w/H2S |
(10) |
CS |
D/CD, H/TD |
HC/HT |
NA |
SF=6618-4 |
8921-K |
CS or |
|
w/CF8M SS |
SSF=1043-4 |
217 |
DI |
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Hydraulic |
CS |
D/CD, H/TD |
HC/HT |
838/835 |
SF=805-4 |
212 |
CS or |
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w/CF8M SS |
DI |
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Methanol |
(7) |
(3) |
(4) |
(4) |
(4) |
(6) |
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CS or |
D/CD, H/TD |
HS/HST |
NA |
SF=6606-4 |
232 |
CS or |
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SS |
w/CF8M SS |
SSF=1040-4 |
DI |
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Water |
(7) |
(3) |
(4) |
(4) |
(4) |
(6) |
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Hot/Boiler Feed |
NAB |
D/CD, H/TD |
HC/HT |
NA |
NA |
8921-K |
AB or |
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w/CF8M SS |
249 |
SS |
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Salt/Produced |
NAB |
D/CD, H/TD |
SC |
NA |
NA |
241 |
AB or |
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w/CF8M SS |
8921-K |
SS |
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Salt/Produced w/H2S |
(10) |
NAB |
D/CD, H/TD |
SC |
NA |
NA |
241 |
AB or |
|
w/CF8M SS |
8921-K |
SS |
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Sea, Non-Aerated |
NAB |
D/CD, H/TD |
SC |
NA |
SSF=1068-4 |
241 |
AB or |
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w/CF8M SS |
SF=809-4 |
8921-K |
SS |
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Sea, Aerated |
Dplx SS |
D/CD, H/TD |
SC |
NA |
SSF=1068-4 |
8921-K |
SS |
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w/Duplex SS |
SF=809-4 |
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TABLE 2.WK4 |
REV. D |
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13 |
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Reference Notes |
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1 |
Bronze/metals with bronze (Monel, etc. ), should not be used in any liquid exposed components. |
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2 |
If contamination of pumpage by packing lubricant is acceptable, the following is recommended. |
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Packing |
Sym. |
Comments |
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All Braid Styles |
NA |
Use positive back-drip feed lubrication. |
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"J" Style |
J |
Use positive pressure feed lubrication. |
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"V" Style |
SF/SSF |
Use positive back-drip feed lubrication. |
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Brake fluid, low temperature transmission fluid, or refrigeration oil should be used as packing |
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lubricant at lower temperatures below -10 degrees F. |
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3 |
Plunger Type |
Sym. |
Comments |
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Solid Ceramic |
SC |
If temperature either exceeds 180 degrees F, or differential is 100 degrees F, |
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a ceramic coated (CC) or other hard surfaced metal base plunger is required. |
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Ceramic Coated |
CC |
Ceramic coated over stainless steel metal base. |
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Hard Surfaced |
HC |
Colmonoy Alloy #6 coated over stainless steel metal base. |
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Hard Surfaced |
HT |
Tungsten & Colmonoy Alloy #6 coated over stainless steel metal base. |
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Hard Surfaced |
HS |
Tungsten & Stellite Alloy #157 coated over stainless steel metal base. |
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4 |
Always check suitability of packing for pumping temperature and pressure. |
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Packing Type |
Sym. |
Comments |
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All Braid Style |
NA |
Adjustable, max. operating pressure is 4000 psig, without written factory approval. |
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"J" Style |
J |
Non-adjustable, max. operating pressure is 2500 psig. |
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"V" Style |
SF |
Single stack height spring-loaded if -4. |
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"V" Style |
SSF |
Double stack height spring-loaded if -4, min. operating pressure is 1500 psig. |
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5 |
Minimum Temperature |
Forged/Billet |
General Specification |
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greater than +0 degrees F |
Carbon/Low-Alloy Steel |
ASTM A105 or A516 Grade 70 |
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from +0 to -20 degrees F |
Carbon/Low-Alloy Steel |
ASTM A350 Grade LF1 |
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from -20 to -50 degrees F |
Carbon/Low-Alloy Steel |
ASTM A350 Grade LF2 |
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less than -50 degrees F |
Stn. Stl./Ni-Al-Brz |
ASTM A473 Type 316/ASTM B148 Gr. 955 |
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6 |
Material |
Sym. |
Material |
Sym. |
Material |
Sym. |
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Carbon Steel |
CS |
Stainless Steel |
SS |
Ni-Al-Brz |
NAB |
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Ductile Iron |
DI |
Al-Brz |
AB |
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7 |
Valve Type |
Sym. |
Comments |
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Delrin/Celcon Disc |
D/CD |
Pressures up to 1500 psig & temperatures up to 150 degrees F. |
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HTP/Titanium Disc |
H/TD |
Pressures above 1500 psig & temperatures up to 300 degrees F. |
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Abrasion Resistant SS |
ARS |
All pressures and temperatures up to 180 degrees F. |
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8 |
Cast CS or DI liquid end are suitable only if the customer requirements allow their use. |
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9 |
Traces of Benzene or Toluene also require compatible material for exposed gaskets/seals. |
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10 |
Consult factory on material requirements for NACE Specification MR-01-75 latest revision. | ||||||||
