Abrasion-resistant Valve Packing, 25 MPa, ePTFE/Graphite/Aramid

Name: Abrasion-resistant Valve Packing, 25 MPa, ePTFE/Graphite/Aramid
SKU: VPSK-20250808-VP-03
Availability: InStock
Rating: 5 (1 reviews)

Key Specifications / Features

The Abrasion-resistant Valve Packing Manufacturer offers high-quality valve stem packing designed to withstand harsh operating conditions. These packings are braided from a combination of expanded PTFE, graphite, and aramid fiber, providing excellent abrasion resistance and durability. Available in sizes ranging from 6.5 mm to 50 mm, they can handle pressures up to 25 MPa (250 bar).

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Detail Information

Product Name: Abrasion-resistant Valve Packing
Type: Valve Stem Packing
Material: ePTFE, Graphite, Aramid Fiber
Diameters: 6.5 mm to 50 mm
Pressure: 25 MPa/250 bar
pH Range: 1-13
Tmperature Range: -50°C to 250°C

Key Features

PTFE/graphite faces provide excellent heat dissipation for cool operation.
Aramid fiber corners deliver superior abrasion resistance, ideal for rigorous plunger pump service.
Aramid yarn is impregnated with fluoropolymer dispersion for enhanced sealability and a break-in lubricant to minimize friction.
High-density PTFE core offers resistance to high working pressures.

Typical Applications

Suitable for chemical processing equipment including:
Pumps, valves, reactors, autoclaves, agitators, and mixers
Handling ammonia and carbamate solutions, hydrazine, trisodium phosphate, sodium hexametaphosphate
Black and green liquor, chemical slurries, paper pulp, contaminated water, and molasses

The packing is a high-performance combination packing designed for abrasion resistance and cool running. It features tough aramid fiber yarn at the corners, ePTFE/graphite fiber yarn on the faces, and a core of high-density extruded and expanded PTFE cord. This multi-component design ensures excellent sealing performance and durability, especially in demanding plunger pump and chemical processing applications.