For additional information contact your local representative or
Gardner Denver Pump Division,
1800 Gardner Expressway, Quincy, Illinois 62301
Customer Service Department
Telephone: (800) 682-9868 FAX: (217) 224-7814
Sales and Service in all major cities. 4/02
DFS (FY-FS) High Pressure
Duplex Steam Pump
Air • Steam • Gas Driven
STANDARD EQUIPMENT
• Rods and pistons.
• Liners and valves.
• Wood skids.
• All necessary drain cocks and
plugs.
OPTIONAL EQUIPMENT
• Lubricator
• Fluid liner pullers
• Valve seat pullers
• Surge chamber
• Steel skid
• Stainless steel valves
MATERIAL SPECIFICATIONS
STEAM END
COMPONENT STANDARD FITTED
MUD, GROUT &
CEMENT FITTED
OIL
SERVICE FITTED
BOILER FEED or
WATER SERVICE COMPONENT MATERIAL
Cylinder Cast Iron Cast Iron Cast Iron Cast Iron Cylinder Cast Iron
Liners Hardened Steel Hardened Steel Hardened Steel Bronze Piston Cast Iron
Suction
Manifold Cast Iron Cast Iron Cast Iron Cast Iron Packing
Braided
Polymer
Discharge
Manifold Cast Iron Cast Iron Cast Iron Cast Iron CONNECTIONS
Packing Braided Polymer Molded Convex Braided Polymer Braided Polymer Inlet 2”
Piston Iron Follower Type Steel Insert Type Iron Solid Type Bronze Follower Type Exhaust 2 ½”
Piston Rod Hardened Steel Hardened Steel Hardened Steel Bronze
Stuffing Box Cast Iron Cast Iron Cast Iron Cast Iron
Valve Steel Center Guided
Steel (Gravel)
Wing Guided Steel Center Guided Bronze Wing Guided
Valve Seats Steel Steel Steel Bronze
*Materials listed are furnished as standard equipment. Alternate materials available upon request.
MODEL DESIGNATIONS
MODEL FY-FS
Mud Service Fitted DFSA
Grout & Cement Service DFSD
Oil Service DFSG
General Service DFSR
Bronze Fitted (Water Svc) DFSK
Stroke 10”
Liner Size
Maximum 7.5”
Minimum 5"
Fluid End Type Cast Iron Two Piece