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Leading Manufacturer, Supplier & Retailer of Polyamide Fibre Gland Packing, High Pressure Jointing Sheet, Polyimide Fibre Gland Packing, jointing sheet and Gland Packing for Caustics.

Polyamide Fibre Gland Packing

  • Brand Name SIGMA
  • Pressure bar to 300 psi (20 bar) rotary/ centrifugal;  to 2000 psi (138 bar) valves
  • Density g/cm3 1.4
  • Temperature °C -328 0F (-2000C) to + 5720F(+3000C)
  • Shaft Speed to 3000 rpm
  • PH range 0-14

APPLICATIONS / USES :A Special application performance packing made of combination of Pure PTFE fibre with additional polyamide synthetic fibre reinforced in core & all four corners to provide sliding surface and heat dissipation property. The combining benefit of pure PTFE, Polyamide & high temp resistance lubricants gland packing offers longer sealing ability due to excellent dimensional ability.

Product Description:
Sigma 225 Combination Packing is specially recommended for NH3 feed pump & valves, Oil & Solvents, caustics, Acids, Alkalies, Dyes, Chemicals Liquid ammonia & carbonate solution under high pressure conditions, waste water treatment plants. Aggressive organic / inorganic Chemical Rotary and reciprocating plant pumps & valves, oils, corrosive gases, Dyestuffs, synthetic resins, White and black liquor, wood pulp, detergent, hydrocarbons, steam valves, metering pumps, reactors, mixers, autoclave glands, bauxite slurries, bottom ash slurry pumps, mineral handling slurries, tailings pumps and other slurry processing applications.

Prime Features

Best gland packing for NH3 feed pumps.
Long maintenance free service life. Minimal shaft wear and leakage
Pliable, wear-resistant and dimensionally stable. Rugged and non-toxic
Extended service life by up to 400% in harsh environments.
Six times better heat conduction as against pure PTFE packings at comparatively high speeds.
Significantly low thermal expansion thus resisting over expansion extrusion under service.
Suitable to centrifugal & reciprocating pumps even at high pressure
PTFE Graphite fibre at faces enhance low friction for shaft / sleeve safety
Excellent in abrasive application. Well proven with aggressive media
High penetration & abrasion resistance of polyamide fibers ensure corner safety of packing

Available on demand: Square Section 6 mm sq upto 38 mm sq.sq
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High Pressure Jointing Sheet

  • Brand Name SIGMA
  • Appearance Brown / Grey or Graphited
  • Dimensions In thickness 0.4 mm, 0.8 mm, 1 mm, 1.5 mm, 3.2 mm, 4.8 mm. In standard width 1500 mm & long as requ

APPLICATIONS / USES :Compressed Asbestos Fibre (crysotyle) processed with NBR (Nitrile Butadiene Rubber) & SBR (Styrene Butadiene Rubber) bonded with high grade binder compound manufactured with latest technology consistently Uniform Jointing Sheet.

Application :

Best suitable for use against dry and wet steam, water, gases, alkalies, oil at normal temperatures, chemicals fuels, etc. and general engineering. To seal off motor oil, carburetor mixtures, hydraulic fluids, low temperature oils, steam, alkalies and water/antifreeze and water / anticorrosion mixtures, highly suitable for internal combustion engines, compressors.

Service Limits, Application Parameter :

Max. Operating Temperature   360 °C
Max. Operating Pressure   80 Kg/cm²
Density ASTM F 1315 1.9 g/cm³
Compressibility ASTM F 36A 8 %
Recovery ASTM F 36A 50 %
Tensile Strength ASTM F 152 15 N/mm²
Stress Relaxation (50 N/mm²,16h,300°C) DIN 52913 20 N/mm²
Loss on ignition ASTM F 495 24 %
Thickness increase ASTM F 146    
Weight Increase ASTM F 146    
Water (48h, 23 °C)   6 %
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Polyimide Fibre Gland Packing

  • Equipment  Check and needle valve stems, reciprocating rods, rams and plungers, reactors, centrifugal pumps & equipment rotary applications
  • Temperature -328 0F (-2000C) to + 5720F(+3000C)
  • PH range 0-12
  • Shaft Speed to 3000 rpm
  • Pressure 3.4 MPa
  • Rubbing Speed 13 m/s

APPLICATIONS / USES : Sigma 243 Combination Packing is recommended for Oil & Solvents, caustics, Acids, Alkalies, Dyes, Chemicals Liquid ammonia & carbonate solution under high pressure conditions, waste water treatment plants. The packing and material is designed for heavy duty industrial use in all kinds of Aggressive organic / inorganic Chemical Rotary and reciprocating plant pumps & valves, oils, corrosive gases, Dyestuffs, pulp & paper, power generation, steam valves, metering pumps, reactors, mixers, waste water, bauxite slurries, general slurry, mineral handling slurries and other slurry processing applications.

Product Description:
Sigma 243 (CombinationPacking)A Special application performance packing made of PTFE filament yarn interlaced with blue poliamide aromatic yarn reinforced in core & corners to provide sliding surface and heat dissipation property.The combining benefit of PTFE, Poliamide & high temp resistance lubricants offers longer sealing ability due to excellent dimensional ability.

FEATURE

Long maintenance free service life. Minimal shaft wear and leakage
Pliable, wear-resistant and dimensionally stable. Rugged and non-toxic
Extended service life by up to 400% in harsh environments.
Six times better heat conduction as against pure PTFE packing at comparatively high speeds.
Significantly low thermal expansion thus resisting over expansion extrusion under service.
Suitable to centrifugal & reciprocating pumps even at high pressure
Excellent in abrasive application. Well proven with aggressive media
High penetration & abrasion resistance of polyamide fibers ensure corner safety of packing

Size 4 5 6 8 10 12 14 15 16 18 19 20 25
ApproxMtr/kg. 35 22 16 9.0 5.6 3.9 2.9 2.5 2.2 1.7 1.5 1.4 1
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Jointing Sheet

  • Brand Name SIGMA
  • Appearance Orange/Red/Grey or Graphited
  • Graphited In thickness 0.4 mm, 0.8 mm, 1 mm, 1.5 mm, 3.2 mm, 4.8 mm. In standard width 1500 mm & long as requi

applications / uses :compressed asbestos fibre (crysotyle) processed with sbr (styrene butadiene rubber) and nbr (nitrile butadiene rubber) manufactured with latest technology consistently uniform jointing sheet. Sigma style 396 can also be provided with wire gauze insertion and graphited finish

application :

best suitable for use against dry and wet steam, water, gases, alkalies, oil at normal temperatures, chemicals fuels, etc. And general engineering. To seal off motor oil, carburetor mixtures, hydraulic fluids, low temperature oils, steam, alkalies and water/antifreeze and water / anticorrosion mixtures, highly suitable for internal combustion engines, compressors.

Service Limits, Application Parameter :

Max. Operating Temperature   360 °C
Max. Operating Pressure   70 bar
Density ASTM F 1315 1.9 g/cm³
Compressibility ASTM F 36A 8 %
Recovery ASTM F 36A 50 %
Tensile Strength ASTM F 152 21 N/mm²
Stress Relaxation (50 N/mm²,16h,300°C) DIN 52913 22 N/mm²
Loss on ignition ASTM F 495 24 %
Thickness increase ASTM F 146    
ASTM oil no.3 (5h, 150°C)   20 %
ASTM Fuel B (5h, 23 °C)   16 %
Weight Increase ASTM F 146    
ASTM oil no.3 (5h, 150°C)   18 %
ASTM Fuel B (5h, 23 °C)   15 %
Water (48h, 23 °C)   5 %
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Gland Packing For Caustics

  • Pressure  Psi bar to 500 psi (34 bar) rotary / centrifugal ; to 2000 psi (138 bar) valves
  • Shaft speed M/s to 1500 rpm
  • Density g/cm3 1.4
  • Temperature °C   -3280F (-2000C) to 12000F(6500C Steam) & (33000C Non-oxidizing media)
  • PH range    0 -14

APPLICATIONS / USES :Aramid packing with rubber core The packing made of high quality aramid fibers with PTFE-lmpregnation and lunricant additive. Blended with silicone rubber in central position, having excellent compression compensation power. High elastic rubber core can absorb vibration to control leakage better.The packing made of high quality aramid fibers with PTFE-lmpregnation and lubricant additive. Extremely hard wearing. It shows good chemical resistance, high elasticity and very low cold flow. Compare with other kinds of packing, it can resist more severe media and higher pressure.It is an universal packing, can be used for pumps in all types of industry such as chemical, petrochemical, pharmaceutical, food and sugar industries, pump and paper mills, power stations etc. It is also a durable packing able to withstand granular and abrasive applocatons.

Product Description:
Designed for serve on superheated steam, solvents, liquefied gases, sugar syrup and other abrasive fluids.
Sigma 216 Packing is recommended for Oil & Solvents, caustics, Acids, Alkalies, Dyes, Chemicals Liquid ammonia & carbonate solution under high pressure conditions, waste water treatment plants. Agressive organic / inorganic Chemical Rotary and reciprocating plant pumps & valves, oils, corrosive gases, Dyestuffs, synthetic resins, White and black liquor, wood pulp, detergent, hydrocarbons, steam valves, metering pumps, reactors, mixers, autoclave glands, bauxite slurries, bottom ash slurry pumps, mineral handling slurries, tailings pumps and other slurry processing applications.

Prime Feature

Long maintenance free service life. Minimal shaft wear and leakage
Pliable, wear-resistant and dimensionally stable. Rugged and non-toxic
Extended service life by up to 400% in harsh environments
Six times better heat conduction as against other PTFE packings at comparatively high speeds.
Significantly low thermal expansion thus resisting over expansion extrusion under service.
Suitable to centrifugal & reciprocating pumps even at high pressure
Excellent in abrasive application. Well proven with aggresive media
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Steam Jointing Sheets

Best suitable for general use to seal of Water, Steam, Air & Alkaline chemicals for less stress conditions.
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High Purity Carbon Gland Packing

  • Brand Name SIGMA
  • Temperature -3280F(-2000C)to 12000F (6500C steam) & (33000C Non-Oxidizing media)
  • PH range 0 - 14
  • Shaft Speed to 3000 RPM
  • Pressure to 500 psi (34 bar) rotary/ centrifugal;  to 2000 psi (138 bar) valves

APPLICATIONS / USES :Highly recommended for rotating equipment including Centrifugal and Displacement pumps in process applications include: exhaust seals, pulpers, digesters, mixers, agitators, dryers and blowers, super heated high temperature and pressure steam, heat transfer fluid, hydrogen gas, ammonia, organic solvents, hydrocarbons, fuel oil, cryogenic liquids, Not recommended for strong oxidizers as fuming nitric acid, oleum etc.

Product Description:
Sigma 198 (High Temperture Packing)A high temperature unique & universal seal gland packing made of high purity carbon filament yarn packing having a good thermal conductivity, flexibility, resiliency, elasticity and low friction.

FEATURE

High thermal conductivity for cool running.
Very good start-up and emergency running characteristics.
Less gland adjustment, easy break-in, & even compression in all rings
PREVENT Galvanic corrosion of the spindle/shaft
Excellent low co-efficient of friction and minimal Shaft wear.
Very Resilient and resistance to thermal shock & high thermal conductivity
Significant serviceability of packing.
Special grade Sigma 171 (on request) for Nuclear Application.

   Size 3 mm 6 mm 8 mm 10 mm 12 mm 14 mm 16 mm 19 mm 20 mm 22 mm 25 mm
ApproxMtr/kg. 38 mtr 19 mtr 13.3 mtr 9 mtr 7 mtr 6 mtr 3.3 mtr 2.8 mtr 2.2 mtr 1.7 mtr 1.1 mtr
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