Piston-seal-ring

Piston Seal Rings

Smart Shield’s Flexible expanded pure graphite pressure sealing / self sealing/ Bonnet Sealing rings  represent a major enhancement of the operational…

Product Description

Smart Shield’s Flexible expanded pure graphite pressure sealing / self sealing/ Bonnet Sealing rings  represent a major enhancement of the operational capabilities of graphite sealing rings used on valve stems . They are manufactured either plain or special SS wire mesh / foil along the cross section. They are available in square – rectangular – angular or any other cross sectional profile. The strong and dimensionally stable profile makes them suitable on gate, Globe and other types of valves. Excellent conformity to body /bonnet and requisite compressibility of Smart Shield SSR enables unmatched sealing; out classing asbestos or soft iron gaskets. Wide applicability in various media, temperature and pressure further add to the versatility of Smart Shield SSR; backed by sound technical know how, making it a popular choice over the competition.

Advantages

  • Greatly reduce the torque needed for efficient valve action
  • Save on power consumption and enable smaller actuators to be used
  • Lowers the break-out friction for smoother valve operation
  • Retain exceptionally low friction characteristics for up to 20,000 valve cycles
  • Subsequent manual adjustment extends performance to 60,000 cycles
  • Fire-safe capability enables rings to be used in plant subjected to fire rating tests

Specifications

Sizes

As per Drawings,Dimensions and types of valves (OD Upto 800 mm)

Density

1.8 gm/cc or more depending upon reinforcements

Thickness

upto 100 mm

PH Range

0 to 14

Pressure

500 bar

Working Temperature

In Oxidizing Atmosphere : – 240 to 450 °C
In Steam : – 240 to 650 °C
In Non Oxidizing Atmosphere : – 240 to 3000 °C

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Piston Seal Rings

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