Nitrile: General purpose, oil-resistant. Shows good solvent, oil, water and hydraulic fl uid resistance. Should not be used with highly polar solvents like
acetone and MEK, ozone, chlorinated hydrocarbons and nitro hydrocarbons.
EPDM: Shows very good water and chemical resistance. Has poor resistance to oil and solvents, but is fair in ketones and alcohols.
Neoprene: All purpose. Resistant to vegetable oil. Generally not affected by moderate chemicals, fats, greases and many oils and solvents. Generally
attacked by strong oxidizing acids, ketones, esters, nitro hydrocarbons and chlorinated aromatic hydrocarbons.
Santoprene
®:
:
Injection molded thermoplastic elastomer with no fabric layer. Long mechanical fl ex life.
Excellent abrasion resistance.
Virgin PTFE: Chemically inert, virtually impervious. Very few chemicals are known to react chemically with PTFE- molten alkali metals, turbulent liquid or
gaseous fl uorine and a few fl uoro-chemicals such as chlorine trifl uoride or oxygen difl uoride which readily liberate free fl uorine at elevated temperatures.
FKM (Fluorocarbon): Shows good resistance to a wide range of oils and solvents; especially all aliphatic, aromatic and halogenated hydrocarbons, acids,
animal and vegetable oils. Hot water or hot aqueous solutions (over 70°F) will attack FKM.
Polypropylene:
UHMW Polyethylene:
Materials Maximum Minimum
Quality System
ISO9001 Certifi ed
Environmental
Management System
ISO14001 Certifi ed
Operating Temperatures
INTAKE/DISCHARGE PIPE SIZE
2" NPT (internal)
2" BSP Tapered (internal)
CAPACITY
0 to 150 gallons per minute
(0 to 567 liters per minute)
AIR VALVE
No-lube, no-stall
design
SOLIDS-HANDLING
Up to .25 in. (6mm)
HEADS UP TO
125 psi or 289 ft. of water
(8.6 Kg/cm
2
or 86 meters)
DISPLACEMENT/STROKE
.42 Gallon / 1.59 liter
CAUTION! Operating temperature limitations are as follows:
Air Inlet Side View
Air Exhaust Side View
CE
U.S. Patent #
5,996,627; 6,241,487
Other U.S. Patents
Applied for
190° F
88° C
-10° F
-23° C
280° F
138° C
-40° F
-40° C
200° F
93° C
-10° F
-23° C
275° F
135° C
-40° F
-40° C
220° F
104° C
-35° F
-37° C
350° F
177° C
-40° F
-40° C
180° F
82° C
32° F
0° C
180° F
82° C
32° F
0° C
For specifi c applications, always consult The Warren Rupp Chemical Resistance Chart
SANDPIPER
®
pumps are designed to be powered only by compressed air.
S20 Metallic
Design Level 1
Ball Valve
Air-Operated
Double Diaphragm Pump
ENGINEERING, PERFORMANCE
& CONSTRUCTION DATA