Mechanical seals, NIPPON PILLAR PACKING Co.,Ltd.

The packing of this series is a gland packing for valve, to which the chemically stabilized expanded graphite(Pillar Foil(R)*) is adopted.
It is a high-performance packing to which the special low-torque treatment is taken, and is intended to improve the operability of valve rod, which has been a problem in the conventional expanded graphite base packing.
It is applicable to a wide range of fluid conditions, and makes it possible to elongate the life of stem seal.

*The Pillar Foil(R) is a Nippon Pillar's trademark for expanded graphite.

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■Features

◆Low-torque
This is a gland packing improved the problem of sliding resistance by executing the special low-torque treatment, which had been a disadvantage in the conventional packing bade of expanded graphite.

◆Wide-range application conditions
Since the gland packing provides the excellent heat resistance and chemical resistance possessed by the expanded graphite, it is applicable to a wide range of fluid.

◆Long life
Since it is possible to maintain the tightening force for a long time as compared with the packing made of asbestos, it assures the prolonged life, allowing the maintenance to be reduced.

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■Performance

◆Application range of expanded graphite base packing
Manual valve, electric valve
- For low-temperature/low-pressure:
PILLAR No.6114
- For medium-temperature/medium-pressure:
PILLAR No.6315CL
- For medium-temperature/high-pressure:
PILLAR No.6710CL + PILLAR No. 6616CL(No.6610CL)
- For high-temperature/medium-pressure:
PILLAR No.6315CH
- For high-temperature/high-pressure:
PILLAR No.6710CH + PILLAR No.6616CH(No.6610CH)


Control valve
- For low-temperature/low-pressure:
PILLAR No.4519
- For medium-temperature/medium-pressure:
PILLAR No.6720 + PILLAR No. 6610CL
(used with carbon ring in combination)