Quarter-turn Valve Packing Set, API 641, Graphite, 4500 PSI

Product Name: Graphite Packing Set, Low Emission Packing for Quarter-turn Valves
Packing Set Parts: High-purity Die-formed Graphite Rings
Material: Inconel Wire, Pure Graphite
Dimensions: as per Customer's Requirement
Pressure Range: up to 4,500 PSI, 310 bar
pH Range: 0 to 14
Low Fugitive Emission Standards: ISO 15848-1 (up to 400°C), API 641, API 622 2nd Edition, TA-LUFT
Temperature Range: -200°C to +450°C (Air); +450°C (Steam)

API 641 Fugitive Emission Test Performance 

Average Emission Leakage: 4 PPMv
Maximum Emission Leakage: 15.9 PPMv
Zero Bolt Retightening Cycles