SINSTON ZR-200H Expanded Graphite Packing
Description: Braided from low-sulphur expanded graphite yarns, which are reinforced by cotton fiber. It has a very low friction, does not damage shafts or stems. It shows good thermal and chemical resistance and high elasticity.
SINSTON ZR-200Z--Flexible Packing with Corrosion Inhibitor
Corrosion inhibitor acts as a sacrificial anode to protect the valve stem and the stuffing box.
Other reinforcement materials are also available.
Glass fiber--------High strength, lower cost
Carbon fiber------Less weight loss
APPLICATION :
SINSTON ZR-200H & SINSTON ZR-200Z is a multi-service packing capable of a wide variety of uses throughout a plant. It can be used in valves, pumps, expansion joints, mixers and agitators in high-pressure, high-temperature hostile environments of hydrocarbon processing, pulp and paper, power stations, refineries and industries where effective sealing is vital.
Precaution: in oxidizing environment.
Recommendation: Use preferably with SINSTON ZR-455 high carbon fiber anti-extrusion packing rings.
SERVICE LIMITS:
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Rotating
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Reciprocating
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Valves
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Pressure
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20 Bar
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100Bar
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300Bar-
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Shaft speed
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20m/s
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2m/s
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2m/s
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Density
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1.0~1.3g/cm3 (+5% for ZR-200Z)
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Temperature
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-220~+5000C(+5500C with steam)
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PH range
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0~14
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FORMS OF SUPPLY:
in coils of 2 to 5 kg, other package on request.
