The Triplex Single Acting Mud pump is machined as per the designs provided by LTV Co on Emsco F Series pump with all fluid end parts interchangeable to that being machined by Emsco OEM plants.

F-500, F-800 and F-1000 Mud Pumps

Power End (frame, pinion shaft, crankshaft, crosshead and extension rod )

• Continuous tooth herringbone gear.
• one-piece alloy steel crank.
• Renewable crosshead guide.
• The frame is made of welded steel plate to provide the frame with high strength, good rigidity and light weight.
• The extension rod packing is duplex seal structure to provide the good seal result.
• The power end uses the combined lubricating system of forced lubrication and splash lubrication.
• The frame is made of welded steel plate and stress relief treated to obtain the good rigidity and high strength. The place where the crankshaft bearing is fitted is strengthened by using ribbed plates. The frame is furnished with the necessary oil basin and oil way system for cooling and lubricating purpose.
• Crankshaft is made of casted alloy steel and furnished with herringbone gear, connecting rod and bearing. The tooth form of the big geared ring is herringbone gear. The gear bore and the crankshaft surface are interference fitted and they are both fastened with bolts and lock nuts. The big end of the connecting rod is mounted on three eccentric straps of the crankshaft through single row short cylindrical roller bearings and the small end on the crosshead pin through double row long cylindrical roller bearing. Double row radial spherical roller bearings are mounted at both ends of the crankshaft.
• Pinion shaft is made of forged alloy steel on which a herringbone gear with the medium-hard tooth surface is machined. For easy maintenance, the single row radial long cylindrical roller bearing with inner ring (without sides) is used. The both ends of the pinion shaft extend out, so that the sheave or the sprocket can be mounted on either end.
• Crosshead and Extension Rod are made of ASTM A48-83 meehanite cast iron featured by good abrasion resistance and long service life. Upper and lower guides are used for F-800 and F-1000 mud pumps, so that the concentricity can be adjusted by adding shimes beneath the lower guide. F-500 mud pump is the cylindrical structure. The connection between the crosshead and the extension rod is made by using bolted flange. The rigid connection ensures the concentricity of the crosshead and the extension rod. The coupling is used for connecting the extension rod to the piston rod. The light-weight coupling enables the extension rod and the piston rod to connect to each other easily and reliably.

Fluid End (cylinders, valve assembly, liners and pistons)

• Cylinders are made of forged alloy steel, three cylinders of each pump are interchangeable. Valve-over-valve (through type cylinder)design reduces the cylinder volume and promote the volumetric efficiency. At customers'request, the cylinder surface may be nickel plated to improve the abrasion resistance. Dischange pulsation dampener, shear relief valve and discharge strainer are furnished at the outlet. F-500 pump suction inlet is fitted with 8"flange, F-500 pump suction inlet with 10"flange and F-1000 pump suction inlet with 12"flange.
• The suction valve and the dischange valve for above three mud pumps are interchangeable. F-500 mud pump uses API#5 valve pot, F-800 and F-1000 mud pumps use API#6 valve pots.
• Bi-metal liners are used. The sleeve is made of wear-resistant cast iron, the surface hardness is HRC60-65. Therefore, liners feature wear resistance, corrosion resistance and high surface finish. Liners are put in from the cylinder cover bore in the front of the cylinder and fixed with liner cage, cylinder cover plug and cylinder cover when installing.
• Pistons and Piston Rods are slide fitted, sealed with rubber seal ring and finally fastened with lock nuts to prevent the piston from looseness and to play a role in sealing.
  Notes: Cylinders, liners, pistons, valves, valve seats, valve springs, seal rings, valve covers and cylinder covers at the fluid end of F-800 and F-1000 mud pumps are all interchangeable.

F-1300 and F-1600 Mud Pumps

Designed and manufactured by Baoji Plant, F-1300 and F-1600 mud pumps can meet the requirements of the same manufacturing technique and quality level as those of F series mud pumps of LTV Co. They feature advanced structural design, reliable use, easy maintenance and compact occupied area. To reduce drilling workers' labour intensity and make the operation easy on site, liners are designed to be fitted into the frame from the frame top. A mini hoist with 500Kg lifting capacity is mounted on the frame for disassembling and changing liners.

Suction inlets of F-1300 and F-1600 mud pumps are fitted with 12"flanges, F-1300 and F-1600 mud pumps are fitted with API#7 valve pots. The suction valve and the discharge valve are interchangeable. Cylinders are made of forged alloy steel and nickel plated to improve their corrosion resistance. Three cylinders of each pump are interchangeable. Valve-over-valve (through type cylinder) design reduces the cyliner volume and promote the volumetric efficiency.

Notes: Cylinders, liners, pistons, valve and seats, valve springs, seal rings, valve covers and cylinder covers at the fluid end of F-1300 and F-1600 mud pumps are all interchangeable.