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Especificaciones para Pistónes de Bombas Duplex

ESPECIFICACIONES PARA LA FUERZA DE LA TERMINAL:

Armazones de Fuerza
De una pieza, su textura es de granulado cerrado y de hierro moldeado hecho a base de secciones de paredes pesadas, bien amarados para mantener un construcción rígida y diseñados para adapatarse perfectamente a todas sus partes.
Equipos
Construcción de espinapez. El equipo principal is calentado a un alto grado de hierro dúctil. El equipo Pinión es cortado de una aleacion de acero forjado y endurecido.
Cigüeñal
Sección central pesada para montar el equipo principal. Broches de manivulas con un largo diametro para una optima capacidad de cargamento.
Tronco de Pinión
Macanisado y con una base de precision forjada de acero a base de una aleacion calentada de carbono.
Bearings
Heavy duty tapered roller bearings do crankshaft. Self- contained double row ball bearings or single row straight roller bearings on pinion shaft to permit free floating of shaft for self-centering of gears.
Connecting Rods
Heavy cross section castings with renewable babbitt lined steel shell bearings in crank end; bronze bushings in crosshead end.
Crossheads
Cylindrical-type, one-piece, cast iron castings. Crosshead pins are case hardened and precision ground steel.
Lubrication
All power end parts, crank & pinion shafts including gears, crossheads, connecting rod bearings, crankshaft bearings, and pinion shaft bearings are lubricated by a field proven crankcase reservoir splash-gravity feed system.
Stuffing Boxes
All duplex pumps are furnished with replaceable type cast iron stuffing boxes.
Packing
Standard packing is a set of lip-type or square packing rings depending upon the application.

LIQUID END SPECIFICATIONS:

Liquid End Body
Standard materials available are ductile iron and steel castings. Liquid ends can be trimmed out for pumping various liquids.
Cylinder Heads
Heavy section steel bolt-on type with O-ring gaskets.
Valve Covers
Heavy section steel bolt-on type with O-ring gaskets.
Liners
All pumps are available with interchangeable type liners. Standard materials include cast iron, file hard steel and special corrosion resistant liners.
Piston Rods
Various materials are available for straight or API taper rods. Some of these are; steel, stainless steel, file hard steel, and chrome plated steel.
Pistons
Cast iron bodies fitted with various types of rings are available. Slush service pistons can also be furnished.
Valves
Valves and seats are available as follows; Hardened and ground steel wing guided and bronze wing guided. Stainless steel disc valves with stainless steel seats. Various styles of slush type valves are also available.
Stuffing Boxes
All duplex pumps are furnished with replaceable type boxes which are available in cast iron, steel and nickel aluminum bronze.
Packing
Standard packing is a set of lip-type or square packing rings. Other packings can be furnished for special applications.
Stuffing Box Lubrication
Optional, depending on the application. Furnished by use of a regulated flow of oil from a force feed lubricator mounted on the pump, with a separate oil line to each stuffing box and V-belt driven.

Duplex, Triplex & Qunituplex Plunger Pump Specifications

POWER END SPECIFICATIONS:

Power Frame
Meehanite GD-35 gray iron casting with heavy wall sections, well ribbed to insure rigid construction.
Internal Gear Reducer
T450 furnished with standard integral gear reducer.
Crankshaft
Mounted with center line of shaft on center line of crossheads. Machined for mounting shaft extension on off-drive side. Crankshaft may extend from either side except on models 5350 and 5698 which are left hand drive only.
Crankshaft Bearings
Interchangeable heavy duty tapered roller bearings, straight roller or spherical roller bearings, depending upon the pump model.
Connecting Rods
T450, T200 and Q350 rods are cast with a lubricated hole through the center of the rod. All models except the T450 have bronze bushings at the crosshead end. T450 is standard with the needle bearing design. An optional needle bearing design in lieu of a bronze bushing is available. These models along with all 3300, 2900 and 2800 models have precision bearings at the crank end. Other plunger pumps are equipped with "H" type connecting rods, with renewable babbit lined steel backed shell bearings at the crank end and bronze bushings at the crosshead end.
Crossheads
Cylindrical-type Meehanite GD-35 gray iron castings, except for models 3500, T450 and 3900 which are semi-cylindrical type ductile iron castings. Crosshead pins are hardened and ground steel.
Lubrication
Power end parts are lubricated by splash system from oil in crankcase reservoir. Power frame has an oil return channel, from front of crossheads back to crankcase to permit constant circulation of oil and to help keep oil cool. Positive power end lubrication is standard on models T200, Q350 and T450 pumps.
Stuffing Boxes
All models are furnished with nonadjustable lip-type packing rings.

LIQUID END SPECIFICATIONS:

Liquid End Body
Standard materials available from stock are ductile iron for crude oil and fresh water service, steel for pumping petroleum products in hazardous locations, and nickel aluminum bronze alloys for saltwater and other corrosive liquids. Special alloys such as Hastelloy C, Carpenter #20, Inconel or Stainless Steel can be furnished upon request.
Valves
A variety of valve designs and materials are available dependent upon service conditions.
Plungers
Materials available are: Hard surfaced or ceramic coated stainless steel, solid ceramic, or other materials or surfacing required by the application.
Stuffing Boxes
Stuffing boxes are either bored directly into the liquid body or are of the replaceable type.
Packing
Standard packing is a set of non-adjustable lip type packing rings. Other packing can be furnished for special applications.
Plunger Lubrication
Optional, depending on the application. Furnished by use of drip oilers or a regulated flow of oil from a force-feed lubricator. Lubricator is V-belt driven and mounted on the pump with separate oil lines to stuffing box.

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