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203 Armstrong Drive (Freeport, PA)

Main Facility
203 Armstrong Drive
Freeport, PA 16229
T: +1.724.295.6200
Email: fre_sales@curtisswright.com

Aramid

AP Services, a product and service brand of Curtiss-Wright, is a manufacturer and integrated supplier of mechanical valve and pump packing, metal and fabricated gaskets, and a wide variety of specialized fluid sealing products for use in the power generation, chemical, pulp & paper, and refining industries.

Models

    AP STYLE 747

    AP Services, a product and service brand of Curtiss-Wright, manufactures valve and pump packing products that have the lowest leak rates and friction in the industry. Style 747 Kevlar® is braided from DuPont’s high strength, aramid fiber. Each strand is impregnated with a Teflon suspensoid for easy break-in and easy run-in. This high tensile strength fiber forms a resilient durable packing capable of withstanding severe abrasives and high-pressure fluids.

    Style 747 will handle corrosive, abrasive fluids, slurries, air, oil and gases on rotating and reciprocating shafts, valves and plungers. Style 747 is available as individual rings, combination sets, and in bulk.

    General Specifications

    Maximum Temperature 500 ºF
    Maximum Shaft Speed 1,900 FPM
    Ph Range 3-11
    Construction Lattice Braid

    Standard Sizes

    Size 1/8 3/16 1/4 5/16 3/8 7/16 1/2 9/16 5/8 3/4 7/8 1
    ft./lb. 86 50 24 16 11 8.3 6.2 4.9 4 2.9 2.1 1.6

    AP STYLE 750

    AP Services, a product and service brand of Curtiss-Wright, manufactures valve and pump packing products that have the lowest leak rates and friction in the industry. Style 750 is a unique packing combining the best of two products. It has Kevlar® corners that prevent roll and extrusion while the GFO® center provides sealing and lubricating qualities for your toughest applications. Style 750 is an excellent general service packing for severe pump applications.

    Style 750 is designed for corrosive and abrasive fluids in slurries, mixers, and centrifugal and reciprocating pumps. It is widely used in power generation, paper mills, and waste treatment facilities. Style 750 is available as individual rings, combination sets, and in bulk.

    General Specifications

    Maximum Temperature 550 ºF
    Maximum Pressure 300 psi
    Maximum Shaft Speed 2,500 FPM
    Ph Range 2-12
    Construction Lattice Braid

    Standard Sizes

    Size 1/8 3/16 1/4 5/16 3/8 7/16 1/2 9/16 5/8 3/4 7/8 1
    ft./lb. n/a n/a 23 16 10.8 8.5 5.8 4.8 3.9 2.6 2.1 1.2

    AP STYLE 750C

    AP Services, a product and service brand of Curtiss-Wright, manufactures valve and pump packing products that have the lowest leak rates and friction in the industry. Style 750C is a special packing AP has developed by utilizing the unique characteristics of Style 750 and adding a silicone core. This hybrid packing now boasts the strength of Kevlar®¬ corners to prevent roll and extrusion, the sealing and lubricating qualities of a GFO®¬ center, combined with the resiliency of a silicone core. Style 750C offers excellent resilience for worn gland areas, problems associated with eccentric pump shafts, and other general plant applications requiring high resiliency.

    Style 750C is engineered to withstand corrosive and abrasive fluids in slurries, mixers, clinker grinders, rotary and reciprocating pumps, and also can be utilized as door packing. Style 750C is widely used in power generation, paper mills, and waste treatment facilities, where the packing can become degraded by pump media, and where resiliency is a must. Style 750C is available as individual rings, combination sets, and in bulk.

    General Specifications

    Maximum Temperature 550 ºF
    Maximum Pressure 300 psi
    Maximum Shaft Speed 2,500 FPM
    Ph Range 3-9
    Construction Lattice Braid

    Standard Sizes

    Size 1/8 3/16 1/4 5/16 3/8 7/16 1/2 9/16 5/8 3/4 7/8 1
    ft./lb. n/a n/a 19 13 9.5 7.6 5.8 4.6 3.2 2.5 1.9 1.5