Flexible Graphite Products

Graphite Sealing Ring is provided by us in best quality. We put compressibility and resilience into each ring and that's what makes the difference.When you receive a pre-formed ring from Smart-Shield, it still has 15% to 20% compressibility left in it.As you install the ring, it's only necessary to tighten the packing until a seal is effected, which leaves considerable life in the ring for future adjustments. The extra care we take makes the difference. It complements braided packing with inherent lubrication and heat dissipation to enhance operational life at affordable prices, making it a popular sealing device among OEMs and End Users.

Features:

• High percentage of pure graphite
• Precision made for interference seal fit
• Wide temperature range
• Metal reinforcement
• Broad sizes (up to 40” dia)

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

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

Availability

Flexible pure graphite self sealing ring without any reinforcement.

Flexible pure graphite self sealing ring with wire mesh / metal foil reinforcement along the cross section.

The above types with multi-layered metallic WIRE MESH or Stainless Steel CAPS on top and bottom.

• Universally applicable for gases & fluids
• Excellent thermal conductivity
• Chemically resistant against most media
• Can be stored indefinitely

SMART SHIELD GRAPHITE DIE FORMED RINGS are manufactured in a range of densities from 1.3 g /cc to 1.8 g /cc. Minimum carbon content 99% through to 99.85%. Corrosion and oxidation resistant grades and a PTFE impregnated grade also available.

Specifictaions :-

• Die Formed Rings - supplied in a density range of 1.3 g/cc to1.8 g/cc
• Available from 99% through to 99.85% purities – Corrosion inhibited, oxidation resistant and PTFE impregnated grades. 

• Universally applicable for gases & fluids
• Excellent thermal conductivity
• Chemically resistant against most media
• Can be stored indefinitely

Graphite Sheet with Tanged Insert