Mechanical seals, NIPPON PILLAR PACKING Co.,Ltd.

The PILLAR TECHNOGRAPH(R) SEAT is an epoch-making non-asbestos seat gasket having enhanced heat resistance and handling performance.

---

■Features

◆Excellent heat resistance
This seat gasket uses the chemically stabilized graphite for its main constituent material, which settled the problem of heat resistance under high-temperature steam condition, which had been a problem in the conventional non-asbestos seat gasket to which the synthetic rubber had been contained a lot.

◆Excellent handling performance
Since this is a gasket of which graphite is reinforced by a small quantity of high-strength fiber, it provides the high flexibility and adequate surface hardness, and it has no fear of scar, etc. during handling.
◆Excellent execution performance
Since the special coating(for prevention of sticking) is executed on the surface, it is possible to remove the gasket easily after use.

---

■Performance

- Temperature -100 - +260°C
- Pressure 5.2MPa(class-300)
- Minimum tightening design pressure(y) 2.75
- Minimum tightening design pressure(y) 25.5N/mm2(for water , steam)
- Minimum tightening pressure(Y) 39.2 N/mm2(for gas)
Note-1: The value of performance shows the representative value for seat gasket having thickness of 1.5mm.
Note-2: The minimum tightening pressure(Y) shows the minimum tightening pressure to be applied to contact area of gasket.
Note-3: The minimum gasket width is 5mm.