Zenith® Spin Finish Gear Pumps

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Since 1926, Zenith Pumps has provided the man-made fiber industry with precise, pulseless and repeatable gear metering pumps. From the earliest applications in viscose and hot-melt fiber spinning, through the more recent applications in high performance, specialty fibers, Zenith Pumps has met the challenges of the fiber industry with pumps of unmatched performance and quality.

As the largest spin pump supplier to the world’s leading fiber producers, Zenith Pumps has remained in the forefront of gear pump developments through ongoing programs of research into both pump design and precision part manufacturing. In addition, Zenith Pumps is committed to providing superior quality and customer service with two state-of-the-art, ISO certified production facilities fully integrated to ensure that our fiber producer customers have a reliable source of supply for their critical gear pump needs. Our customer support efforts are further enhanced by a worldwide network of direct offices, service facilities and sales representatives to respond to the demands of the fiber industry.

Improvements 

  • Longer Life: Proprietary High Vanadium Stainless Steels and other best-in-class materials are used to dramatically increase the wear and corrosion resistance of the pump.
  • Uniform Accuracy: The application of new design criteria insure that all the internal components wear uniformly over the life of the pump —no stream will loose its accuracy before any other.
  • Less Bubble Formation: The use of special Parker fittings, provide a constant port size from the pump, through the fitting and into the tubing, with a special O-ring seal to eliminate stagnation and air drawn bubble formation.
  • Reduced Bacterial Growth: The optimized internal porting eliminates fluid stagnation points where bacterial growth happens.
  • Easier Maintenance: Our registered deck design, removable seals, and optional color coded fittings and hoses, redefine "quick-n-easy" pump assembly.
  • Value: Long life, ease of maintenance, and improved product quality convert the affordable price into a great value!

Specifications 

  • Pump Type: Rotary external spur gear.
  • Rotation: Clockwise.
  • Operating Speed: 10-100 rpm recommended. Contact factory for specific recommendation based on your application conditions.
  • Temperature: To 212°F (100°C).
  • Flow Rates: 0.03 to 1.2 cc/rev/port 2 to 12 discharge ports standard.
  • Inlet: 7 psi maximum, flooded suction required. Differential pressure should be kept near zero for water emulsion finishes.
  • Viscosity: 1 to 100 cp.
  • Porting: Plates port to same side. Parker Prestolok fitting adapters supplied for flexible tubing. Inlet - 6mm OD, Outlet - 4mm OD
  • Materials of Construction: Proprietary High Vanadium Stainless Steel provides best-in-class corrosion and wear resistance. Seal and binder screws, alloy steel.
  • Seal: Stainless steel spring energized Nitrile lip seal standard.

Applications 

Spin finish pumps are used to accurately meter finishing solutions in a precise, pulseless flow to man-made fibers such as polyester, nylon, polypropylene, acetate, and rayon.

Spin finish metering pumps are available in a wide range of sizes and number of discharge ports for most man-made fiber finishing solutions.

Zenith Spin Finish Gear Pump Dimensions

Standard Spin Finish Pump Models 
(other spin finish pump models available upon request)

PUMP TYPE 
Number of streams
BFC-6250
2-stream
BFF-625
4-stream
BFI-6252
6-stream
BFL-6253
8-stream
BFO-6254
10-stream
BFR-6255
12-stream
cc/rev  "Y" inches/mm "X" inches/mm "X" inches/mm "X" inches/mm "X" inches/mm "X" inches/mm "X" inches/mm
0.03 0.669/17,0 1.50/38,1 2.17/55,1 2.84/72,1 3.51/89,1 4.18/106,1 4.85/123,1
0.05 0.669/17,0 1.50/38,1 2.17/55,1 2.84/72,1 3.51/89,1 4.18/106,1 4.85/123,1
0.08 0.698/17,5 1.52/38,6 2.21/56,1 2.90/73,6 3.59/91,1 4.28/108,6 4.96/126,1
0.16 0.748/19,0 1.58/40,1 2.33/59,1  3.07/78,1 3.82/97,1 4.57/116,1 5.32/135,1
0.3 0.748/19,0 1.58/40,1 2.33/59,1 3.07/78,1 3.82/97,1 4.57/116,1 5.32/135,1
0.6 0.846/21,5 1.68/42,6 2.52/64,1 3.37/85,6 4.22/107,1 5.06/128,6 5.91/150,1
1.2 1.063/27,0 1.89/48,1 2.96/75,1 4.02/102,1 5.08/129,1 6.15/156,1 7.21/183,1

Zenith Spin Finish Gear Pump Dimensions

Typical Spin Finish Pump Installation