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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 Pumps (Table 2)

Liquid Description REF Liquid End Valves Plungers Packing
“J” “V” Braid Thd
Style Style Style Gland
Amine (9) (7) (3) (4) (4) (4) (6)
DEA CS D/CD, H/TD HS NA SF=4511-4 232 CS
CF8M SS SSF=4516-4 DI
MEA (1) CS D/CD, H/TD HS NA sf=6618-4 232 CS
CF8M SS SSF=1043-4 DI
Carbon Dioxide (7) (3) (4) (4) (4) (6)
Dry or Wet (5) CS D/CD, H/TD HC/HT NA SF=805-4 8921-K Temp.
CF8M SS Var.
Condensate (7) (3) (4) (4) (4) (6)
n-Butane/iso-Butane CS D/CD, H/TD HC/HT 845 SF=809-4 238 CS
SS CF8M SS SSF=1068-4 DI
Ethane/Methane CS D/CD, H/TD HC/HT 845 SF=809-4 8921-K CS or
SS CF8M SS SSF=1068-4 DI
Liquid Propane LPG CS D/CD, H/TD HC/HT 838/835 SF=809-4 217 Temp.
Natural Gas Liquid NGL SS CF8M SS SSF=1068-4 Var.
Lean Oil CS D/CD, H/TD HC/HT NA SF=6625-4 217 CS
SS CF8M SS SSF=1073-4 DI
Fuel Oil (7) (3) (4) (4) (4) (6)
Diesel / Kerosene CS D/CD, H/TD HC/HT 838/835 SF=809-4 CS
CF8M SS SSF=1068-4 DI
Gylcol (7) (3) (4) (4) (4) (6)
Ethylene / DiEthylene CS H/TD HC/HT NA SF=809-4 217 CS
CF8M SS SSF=1068-4 DI
Oil (7) (3) (4) (4) (4) (6)
Crude (Clean) CS D/CD, H/TD HC/HT 838/835 SF=809-4 238 CS
w/CF8M SS SSF=1068-4 DI
Crude (w/ Solids) CS ARS HT NA NA 8921-K CS
w/17-4PH SS DI
Crude (w/ H2S) CS D/CD, H/TD HC/HT NA SF=6618-4 8921-K CS
w/CF8M SS SSF=1043-4 217 DI
Hydraulic CS D/CD, H/TD HC/HT 838/835 SF=805-4 212 CS
w/CF8M SS DI
Methanol (7) (3) (4) (4) (4) (6)
CS D/CD, H/TD HS/HST NA SF=6606-4 232 CS
SS w/CF8M SS SSF=1040-4 DI
Water (7) (3) (4) (4) (4) (6)
Hot / Boiler Feed NAB D/CD, H/TD HC/HT NA NA 8921-K AB
w/CF8M SS 249 SS
Salt / Produced NAB D/CD, H/TD SC NA NA 241 AB
w/CF8M SS 8921-K SS
Salt / Produced w/H2S (10) NAB D/CD, H/TD SC NA NA 241 AB
w/CF8M SS 8921-K SS
Sea (Non-Aerated) NAB D/CD, H/TD SC NA SSF=1068-4 241 AB
w/CF8M SS SF=809-4 8921-K SS
Sea (Aerated) Dpix SS D/CD, H/TD SC NA SSF=1068-4 8921-K SS
w/Duplex SS SF=809-4

 

Reference Notes
1 Bronze/metals with bronze (Monel, etc. ), should not be used in any liquid exposed components.
2 If contamination of pumpage by packing lubricant is acceptable, the following is recommended.
  Packing Sym. Comments
All Braid Styles NA Use positive back-drip feed lubrication.
“J” Style J Use positive pressure feed lubrication.
“V” Style SF/SSF Use positive back-drip feed lubrication.
Brake fluid, low temperature transmission fluid, or refrigeration oil should be used as packing lubricant at lower temperatures below -10 degrees F.
3 Plunger Type Sym Comments
Solid Ceramic SC If temperature either exceeds 180 degrees F, or differential is 100 degrees F, a ceramic coated (CC) or other hard surfaced metal base plunger is required.
Ceramic Coated CC Ceramic coated over stainless steel metal base.
Hard Surfaced HC Colmonoy Alloy #6 coated over stainless steel metal base.
Hard Surfaced HT Tungsten & Colmonoy Alloy #6 coated over stainless steel metal base.
Hard Surfaced HS Tungsten & Stellite Alloy #157 coated over stainless steel metal base.
4 Always check suitability of packing for pumping temperature and pressure.
Packing Type Sym Comments
All Braid Style NA Adjustable, max. operating pressure is 4000 psig, without written factory approval.
“J” Style J Non-adjustable, max. operating pressure is 2500 psig.
“V” Style SF Single stack height spring-loaded if -4.
“V” Style SSF Double stack height spring-loaded if -4, min. operating pressure is 1500 psig.
5 Minimum Temp.   Forged / Billet   General Specification
greater than +0 degrees F Carbon/Low-Alloy Steel ASTM A105 or A516 Grade 70
from +0 to -20 degrees F Carbon/Low-Alloy Steel ASTM A350 Grade LF1
from -20 to -50 degrees F Carbon/Low-Alloy Steel ASTM A350 Grade LF2
less than -50 degrees F Stn. Stl./Ni-Al-Brz ASTM A473 Type 316/ASTM B148 Gr. 955
6 Material Sym.   Material Sym.   Material Sym.
Carbon Steel CS Stainless Steel SS Ni-Al-Brz NAB
Ductile Iron DI Al-Brz AB
7 Valve Type Sym Comments
Delrin/Celcon Disc D/CD Pressures up to 1500 psig & temperatures up to 150 degrees F.
HTP/Titanium Disc H/TD Pressures above 1500 psig & temperatures up to 300 degrees F.
Abrasion Resistant SS ARS All pressures and temperatures up to 180 degrees F.
8 Cast CS or DI liquid end are suitable only if the customer requirements allow their use.
 
9 Traces of Benzene or Toluene also require compatible material for exposed gaskets/seals.
 
10 Consult factory on material requirements for NACE Specification MR-01-75 latest revision.

 

Material Selection Chart for Piston Pumps (Table 3)

 

Liquid Description Liquid End Valves Pistons & Rings/Rubbers Liners Piston Rods Packing Gland
Creosote CS CS/SS Cast Iron w/ Chrome Rings File Hard Steel File Hard Braid CI
CDI WG Thd
Condensate
Ethane/Methane CS CS/SS Cast Iron w/ Nylon-TFE Rings File Hard Steel Hard Coated Lip CI
WG Thd
Liquid Propane Gas CS CS/SS Cast Iron w/ Nylon-TFE Rings File Hard Steel Hard Coated Lip CI
WG Thd
Natural Gas Liquid CS CS/SS Cast Iron w/ Nylon-TFE Rings File Hard Steel Hard Coated Lip CI
WG Thd
Lean Oil CS CS/SS Cast Iron w/ Nylon-TFE Rings File Hard Steel Hard Coated Lip CI
WG Thd
Crude Oil
Clean CS CS Cast Iron w/ Chrome Rings File Hard Steel File Hard Steel Lip CI
WG Thd
Clean w/H2S CS SS Cast Iron w/ Chrome Rings File Hard Steel File Hard Steel Braid CI
WG Thd
w/Solids CS Slush Slush w/ NBR Rubbers File Hard Steel Hard Coated Lip CI
NBR Thd
w/Solids & H2S CS Slush Slush w/ FEPM Rubbers File Hard Steel Hard Coated Braid CI
NBR Thd
Mud
Drilling CS Slush Slush w/ NBR Rubbers File Hard Steel Hard Coated Lip CI
NBR Bolted
Water
Fresh CDI Slush Slush w/ NBR Rubbers File Hard Steel Hard Coated Lip CI
CS NBR Bolted
Mine CS Slush Slush w/ CR Rubbers File Hard Steel Hard Coated Lip CI
NBR Bolted
Symbol Type   Chemical Name   Temp. Range
CR Neoprene Polychloroprene -20F to +225F
FEPM Aflas FluoroElastomer – TetraFluoroEthylene & Propylene -10F to + 250F
NBR Nitrile Butadiene-Acrylonitrile -10F to + 250F

 

REFERENCE NOTES
1 Extra Deep Stuffing Boxes with Force Feed Lubrication is recommended for these applications.
2 Consult Factory on material requirements for NACE Specification MR01-75 latest revision.