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NLBModel 350 Series -Triplex Plunger Pump

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The NLB 350 Series pump is an advanced design qtriplex pump with exceptional flexibility and versatility to efficiently meet the requirements of a wide range of pumping services.  The unit features a simple, rugged design to meet the heavy-duty requirements of continuous operation and to minimize maintenance.

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  • Fluid cylinder machined from carbon steel with electroless nickel plate.  Passages are drilled  to minimize turbulence.  Design features minimum volumetric clearance and stress, with maximum shock and pressure resistance.
  • Stainless steel valves have a rugged wing guided design. Seats are beveled and are also made from hardened stainless steel.
  • Packing and plungers can be removed for inspection or replacement without removing the stuffing box.
  • Packing assemblies are spring-loaded and self-adjusting for extended life.
  • Connections for plunger lubrication at atmospheric pressure.
  • Pump features Colomony®-coated plungers.
  • Horizontal configuration provides easy access and low center of gravity.
  • Rugged, cast-iron housing with gravity lubrication and large oil reservoir.
  • Steel crankshaft mounted in tapered roller bearings. Symmetrical design permits easy conversation to opposite-hand drive.
  • Large-diameter cylinder crossheads operating in full circular guides, fitted with hardened wrist pins.
  • Marine-type connecting rods with split, babbetted rod bearings and sleeve-type bronze wrist bearings.  All under compressive loading only.
  • Ground crosshead stub shafts with lipped seals to keep water and dust out of crankcase.
  • High mechanical efficiency.
  • Plunger cover for cleanliness and operator protection.