About Inlet Exhaust Valve

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Various type of heat treatments its definition and objective

It is defined as an operation or combination of different operations involving heating and cooling of metal or an alloy in solid state for the purpose of obtaining certain required structures and desirable properties of a combination of properties suitable for the particular application.

Heat treatment is carried out to achieve one or more of the following objects:

  • To relieve the stresses set up in the material after hot or cold working in order to improve machine ability.
  • To improve mechanical properties like tensile strength, hardness, ductility, shock resistance etc.
  • To modify the structure of the material to improve its electrical and magnetic properties.
  • To increase the qualities of a metal to provide better resistance to heat, corrosion and wear.

Following heat treatment processes are mainly in use for achieving most of the objects of heat treatment:

  • Annealing
  • Spheroidising
  • Normalising
  • Hardening
  • Tempering
  • Case hardening or surface hardening
    • Carburising
    • Nitriding
    • Cyaniding
    • Induction hardening
    • Flame hardening

About Valve Guides Seat

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We are one of the eminent valve guide manufacturers and suppliers in India, who manufacture and supply a wide range of valve guide. The valve guide offered by us is manufactured from optimum quality raw material, so as to ensure the quality & durability of the final product. We provide comprehensive range of quality engine valve guide, which can be used in different engines. We manufacture and supply a wide range of valve guides widely used for automobiles, tractors, industrial & diesel engines. We manufacture valve guide in various material depend on :-

  • Customer requirement
  • Type & Size of engine
  • Engine R.P.M. & effort of engine
  • Their application where usedMaterial of Valve Guide as we use :-
    • Copper zinc alloy
    • Phosphorous Bronze and leaded bronze
    • Manganese Bronze
    • Aluminium Bronze (North American UNS C95400, German CuAI10Fe, British AB1) for high temperature applications.
    • Gun Metal
    • Alloy Graded Cast Iron of 25 & 30 Grade. This Cast Iron is specially made for High Racing Engine.
    • Tin Bronze (North American UNS C90500, German CuSn10Zn, British G1) for piston airplane enginesCast Iron is a general term applied to a wide range of iron carbon alloys. Their carbon content is such as to cause some liquid of eutectic composition to solidify. The maximum carbon content is therefore about 2% while the practical maximum is about 4.3%Cast Iron should not be thought of as metal having single element. It should at least posses’ six elements. These are iron, carbon, silicon, manganese, phosphorus and sulphur.Some of the important mechanical properties
      • Brinell Hardness Number (b.h.n) = 150 to 225
      • It is a brittle material.
      • It cannot be beaten in sheets or rolled or forged. Hence it is not a malleable material

      Various types of Cast Iron are as follows:

      • Grey Cast Iron
      • White Cast Iron
      • Mottled Cast Iron
      • Malleable Cast Iron
      • Spheroidal Grey Iron (s.g.iron)
      • Inoculated Cast Iron
      • Alloy Cast Iron

      Addition of nickel to cast iron produces fine grains, helps formation of graphite and prevents formation of white hard iron nickel & copper ensure an austenitic structure. Chromium and silicon add resistance to scaling. The microstructure of iron is stabilized and formation of fine graphite is promoted by the addition of chromium. The matrix of cast iron is strengthened through promotion of the fine pearlite by the addition of molybdenum.

      Valves developed from CuZnAl-alloy & grey cast iron alloy with high phosphorous content to offer high wear resistance as well as improver the years working properties in poor lubrication conditions. The inner bore of these valve guides is finished to perfect size, not usually done by competitors.

      CuZnAl-alloy Guides are with excellent wear resistance and low coefficient of friction. Used for highest stressed guides. While developing these valve guides, we pay care full attention to the accurate dimensions, so that they could meet with the OEM standards.

      Our valve guide has hardness in range of 160 225 BHN. ValveGuide has microstructure of matrix pearlite with 5% free ferrite. We also provide thread or spiral in inner diameter of valve guide to retain oil for long time between valve and valve guide & increase life both. Our valve guide are grounded to a surface finish 0.80 micro ra value on its outer dia & maintain outer diameter within tolerance of 12 microns. Our valve guide has Super Finish Bore.

     

Allis Chalmers HD16 Main Bearing Set

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ITEM                                         Ref. Part Number            Ref. Pt No.                      Set of 7 Pairs (14 PC)
Main Bearing Intermediate    4386333 /060       CLAVITE PN – MB-2314P         1 Pairs ( 2 Pc)
Main Front & Rear                    4387031 /060        CLAVITE PN – MB-2312P        2 Pairs (4 Pc)
Main Bearings                          4387032 /060        CLAVITE PN – MB-2313P        4 Pairs (8 Pc)

$210.00

Citron Traction Avant 7CV 11CV U23 Main Bearing Set

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Bearing Set of 3 Pairs or 6 Halves

Front 451.389 1 Pair (2 Pc)

Intermediate 451.390 1 Pair (2 Pc)

Rear Thrust 451.391 1 Pair (2 Pc)

Main Bearing Set is suitable for these Models 7CV, 11CV and U23.

Pair if set of Top Half and Bottom Half Pc.

$115.00$130.00

Hatz E108 Z108 D108 V108 Piston Ring Set 

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HATZ 108 Series Diesel Motor Engine Part Number DEV 08-143500-00.

A High quality Piston Ring Set for Hatz Diesel Engine Standard Bore 108mm.

$10.00

Lister 8/1 PISTON Assembly PN 574-10350

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We are offering Lister 8/1 and 16/2 PISTON Assembly Pt No 574-10350

Includes Piston Ring set of 4 Rings (1+2+1) consisting of
– Chromed taper compression ring DEV 614/888 (x1),
– Compression ring DEV 10-4-18 (x2) and
– Oil scraper ring DEV 23/22/99 (x1) set of 1+2+1

$35.20

Lister 9/1 JP Cylinder Head Gasket

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Lister copper composite cylinder head gasket fits Lister 9-1 and JP engines from 1-6 cylinders.

$10.00

Lister 9/1 JP Cylinder Head Shim Copper

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Lister copper cylinder head gasket shim fits Lister 9-1 and JP engines from 1 cylinder to 6 cylinders.

$4.00

Lister 9/1 JP JS JK PISTON RING SET

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A quality piston ring set for use in Lister 9/1 JP, JS and JK Series engines.

Set of 4 Rings (1+2+1) consisting of

– Plain taper compression ring DEV 614/888 (x1),(See note)

– Compression ring DEV 10-4-18 (x2) and

– Oil scraper ring DEV 23/22/99 (x1) set of 1+2+1

A total of three compression and one oil scraper all Non-Chromed Rings

Fits all Lister 9/1 JP JP2 JP3 JP4, JP6, JK4 and JS engines with standard bore of 114.30 mm or 4.5″ alloy pistons with part number 573-10430.

$12.00

Lister 9/1 JP JS JK PISTON RING SET TC

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A quality piston ring set for use in Lister 9/1 JP, JS and JK Series engines.

Fits all Lister 9/1 JP JP2 JP3 JP4, JP6, JK4 and JS engines with standard bore of 114.30 mm or 4.5″ alloy pistons with part number 573-10430.

$12.00

Lister 9/1 JP PISTON Assembly

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We are offering Lister 9/1 JP PISTON Assembly Pt No DEV 573-10430

Includes Piston Ring set of 4 Rings (1+2+1) consisting of
– Chromed taper compression ring DEV 614/888 (x1),
– Compression ring DEV 10-4-18 (x2) and
– Oil scraper ring DEV 23/22/99 (x1) set of 1+2+1

$42.00

Lister CS 8/1 TC PISTON RING SET

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Chromed Piston Rings Set DEV- 574-10990 yhese sets comprise of four rings in total.

1 x oil scraper ring,

2 x plain faced (non chrome) compression rings and

1 x chrome plated top compression ring which has tapered sides, also known as a “keystone” ring.

 

 

 

$13.00

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