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JJ

J.d. Jones & Co. (p) Ltd.
Park Street, Kolkata, West Bengal

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Our Products

  1. Engineering & Shipping Ropes 3 Products available

  2. Tapes

    1 Products available

  3. Piston And Crankshaft Assemblies

    1 Products available

  4. Party, Wedding, Western & Formal Wear

    1 Products available

  5. Bushings

    1 Products available

  6. Oil And Lubricants

    1 Products available
  7. Others Products 2 Products available

Other Products / Services

We offer the best product range of Gasketing Sheet and Valve Stem Packing.

Joint Sealant Tape

Joint Sealant Tape

Expanded PTFE joint sealant tape with self-adhesive backing strip

  • A non-staining and non-contaminating sealant for use in pipe flange
  • A low friction sealant with excellent chemical resistance, even against strong acids and caustics
  • Wide application in refineries and other industries

Service Media and Conditions Compatible in strong acid and alkali media, affected only by elemental fluorine and molten alkali metals
Temperature -232°C to 315°C
pH 0 to 14
Applications Flanges
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Gasketing Sheet

Gasketing Sheet

Expanded PTFE sheet gasket

  • A non-staining and non-contaminating sealant for use in pipe flange
  • A low friction sealant with excellent chemical resistance, even against strong acids and caustics
  • Wide application in refineries and other industries

Service Media and Conditions Compatible in strong acid and alkali media, affected only by elemental fluorine and molten alkali metals
Temperature -232°C to 315°C
pH 0 to 14
Applications Flanges
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Valve Stem Packing

Valve Stem Packing

All purpose, self forming PTFE valve stem packing

  • A non-staining and non-contaminating packing for use in valve stems
  • A low friction packing with a high degree of pliability enabling it to conform to valve stuffing box flaws and irregularities
  • Excellent chemical resistance even against strong acids and caustics

Service Media and Conditions Compatible in strong acid and alkali media, affected only by elemental fluorine and molten alkali metals
Temperature -232°C to 315°C
pH 0 to 14
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Ceramic Cloth

Ceramic Cloth

Ceramic fibre woven cloth reinforced with e-glass fibre

  • Excellent insulation cloth that withstands up to 1, 250C
  • Much better substitute of conventional asbestos cloth which are not meant for use over 450C
  • Manifold service life in comparison to the life of asbestos cloth
  • Very low loss upon ignition
  • Available in rolls, thickness of 2 mm, 3 mm and 5 mm etc; width of 1 m
  • SS wire reinforced rope cloth available upon request

Service Media and Conditions Direct exposure to flame, hot blast, molten alumina, acids and alkalis
Temperature 1260°C
Applications Boiler and turbine covers, pipe wrapping, other insulation purposes
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graphite bush

Graphite Bush
GRAPHITE BUSH WITH SS EYELET

Flexible graphite sleeve with SS eyelet

  • Made by compressing spirally wrapped graphite tapes and SS eyelet
  • High purity of graphite with low chloride, sulphur, fluoride, ash content etc with no binders
  • Self lubricating packing with extremely low friction characteristics, resistant to water, steam and oil
  • Suitable for high pressure and high temperature applications.
  • Packing sleeves are used in many brands of gauge cock, to prevent leakage and to ensure effective operation. The controlled compression ensures a standard, quality product

pH 0 to 14
Applications Water level gauge for boiler
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Valve Seats

Valve Seats

Valve Seats

Valve seats and seats are can be made using PTFE, RPTFE, TFM. At JD Jones, these products are available in a range of dimensions and profiles and are customisable based on customer requirements and OEM drawings.

Aside from standard parts, we also manufacture customised components to suit specific customer requirements and end-use applications.

Our Products Includes

  • PTFE and RPTFE back-up rings
  • Thrust washers
  • Ball Valve Seats
  • Butterfly Valve Seats
  • Piston Ring Seals
  • Rotary Shaft Seals
  • Spring-energised Seals
  • Actuator Joint Bush
  • PTFE/RPTFE Specialised Gaskets
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Rolgard grease

Rolgard Grease

Rolgard is a unique high-performance and high-temperature lithium based grease reinforced with PTFE. Rolgard deposits a fine, tenacious, clinging film on the applied metal surface and the innumerable micro particles of PTFE act as tiny ball bearings that help minimise friction and temperature buildup.

The presence of PTFE in Rolgard helps propagate smoother movement between movable and interfacing parts even at high speeds and temperatures.

  • The grease is known to be mechanically and chemically stable, providing effective lubrication at temperatures upto 250C
  • Excellent for all metal to metal lubrication
  • Chemically and mechanically stable. Does not soften or harden, unlike ordinary greases
  • Excellent thermal stability. Resists oil separation and does not migrate from hot surfaces
  • Withstands a wide temperature range, 5 to +250C
  • Excellent shear stability. Remains where originally applied for extended periods
  • Reduces friction and wear
  • Cuts wasteful energy consumption
  • Controls heat build-up. Safeguards your precious equipment
  • Reduces noise and vibration, especially in large gears
  • Contains no chlorine which has been known to promote corrosion
  • Contains no silicone which has been known to cause migration problems
  • High di-electric strength
  • Offers greater malleability than graphite, MoS2 and other solid lubricants
  • Joints treated with Rolgard are easily dismantled, even after years
  • Increases life of equipment
  • Minimises downtime and maintenance costs

Parameter Specification Result
Drop Point ASTM D–566 256°C
Evaporation Loss ASTM D–972 2.56%
Mean Hertz Load and Weld Load FTM 6503.2 Mean Hertz Load—47 kg
Weld Load—224 kg
Oil Separation FTM 321.2 2.176%
Penetration (Unworked) ASTM D–217 274 (NLGI 2)
Penetration (Worked—60 Double Strokes) ASTM D–217 284 (NLGI 2)
Penetration (Worked—1,00,000 Strokes) ASTM D–217 311
Rust Preventive Property ASTM D–1743 Pass Rating
Water Washout Characteristics ASTM D–1264 2.86 %
Gear Wear Test FTM 335 0.00058 gm/1,000 cycles
Wear, Steel on Steel (4 Ball) ASTM D–2266 0.670 mm (Wear Scar Diameter)
Boiling Water Immersion FTM 3463.1 No cloudiness and other evidence of emulsification

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