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Style 4000G Mechanical Pump & Valve Packing, 5/16 in SQUARE 5 pound spool

  • Mfr # 4000G.3125x5

  • Zoro # G923352405

product price: 
$
941.99
/ea
Free Shipping & Returns

Key Features

Max. Shaft Speed (ft/min)
4000 FPM / 20 m/s
Max. Pressure for Valves (PSI)
4350 PSI / 296 Bar
Material
Carbon Yarn with Graphite Flake Impregnation
Application
Centrifugal & reciprocating pumps, control/isolation valves, petrochemical & refinery service, chemical processing, pulp & paper mills, power generation
Color
Black
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Specifications

Details

MFR #
4000G.3125x5
Zoro #
G923352405
UPC #
781745058074
Country of Origin
United States
Max. Shaft Speed (ft/min)
4000 FPM / 20 m/s
Max. Pressure for Valves (PSI)
4350 PSI / 296 Bar
Material
Carbon Yarn with Graphite Flake Impregnation
Application
Centrifugal & reciprocating pumps, control/isolation valves, petrochemical & refinery service, chemical processing, pulp & paper mills, power generation
Color
Black
Max. Temp in Steam (F)
6000°F (3315°C)
pH Range
0 – 14
Max. Pressure for Pumps (PSI)
500 PSI / 34 Bar

Description

Style 4000G is a high-performance carbon fiber braided packing impregnated with high-purity graphite flake and a proprietary blocking agent. Designed for demanding pump and valve applications, this packing delivers low leakage, excellent heat dissipation, and minimal shaft wear in high-speed and high-temperature service. The interlock braid construction provides strength, flexibility, and easy installation while maintaining dimensional stability under pressure. Style 4000G is self-lubricating and well-suited for chemically aggressive, caustic, or corrosive media across a wide pH range. Commonly used in chemical processing, petrochemical, power generation, pulp and paper, and general industrial service where reliable sealing performance is required.

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