HZDT Sealing; Braided Packing - Carbon Yarn Packing

GH-250-1

GH-250-1 Carbon with PTFE and graphite impregnated Packing (NA)

Construction: The packing is manufactured from pure carbon yarn, which is interlock braided and impregnated with PTFE and graphite particles which fill voids, block leakage, and act as a break-in lubricant. The end product has a low coefficient of friction and tends to wear more evenly than most braided packings.

Application: It handles water, steam, boiler feed, and aqueous solutions of acids and alkalis. In service, it seats quickly and does not require extensive break-in adjustments. It is commonly used for high speed pumps, blowers, dryers, high temperature valves, and furnace gasket.

Service Limits:


Pressure (Bar)	50	200	300
Temperature (°C)	-200~450 (In Air) -200~650 (In Steam)
Shaft Speed (m/s)	0~20
PH Range	0~14 (except strong oxidizers)

GH-250-2 Carbon with PTFE impregnated Packing (NA)

Construction: This packing is an interlock braid of carbon fibers which are carefully impregnated with PTFE. The resulting packing is very tough, resists wear, has excellent chemical resistance and prevents contamination.

Application: The packing can handle chemicals over the entire 0-14 pH range except for strong oxidizers. It is very popular in the pulp and paper industry because it is especially designed for applications involving strong caustics, acids, bleaches, slurries, and services where contamination cannot be tolerated. GH-250-2 is commonly used in valves and pumps, agitators, reactors, and autoclaves.

Service Limits:


Pressure (Bar)	30	100	200
Temperature (°C)	-200~300
Shaft Speed (m/s)	0~15
PH Range	0~14 (except strong oxidizers)

GH-250-4 Flexible graphite Packing with Carbon corners (NA)

Construction: This packing is diagonally braided from pure, expanded flexible graphite, reinforced at the corners and throughout with high-quality carbon fibers. The carbon fiber reinforcement in the corners and body of the packing make it three times more resistant to extrusion and also increase the pressure handling capabilities compared to non-reinforced flexible graphite packing.

Application: This extremely versatile packing can be used in many demanding applications, both dynamic and static. GH-250-4 packing is particularly suited for high temperature and high pressure service in valves, pumps, expansion joints, mixers and agitators. It can handle most chemicals in the 0-14 pH range with the exception of strong oxidizers.

Service Limits:


Pressure (Bar)	50	300	500
Temperature (°C)	-250~450 (In Air) -250~650 (In Steam)
Shaft Speed (m/s)	0~20
PH Range	0~14 (except strong oxidizers)

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