Spiral Wound Gaskets

Spiral wound gaskets are fabricated out of a thin metal strip form and can be welded. These SPW gaskets can be used against any corrosive medium dependent upon the choice of the metal and filler. They can be used from cryogenic to approximately 2000ΒΊ degrees Fahrenheit temperature service.

ASME B16.20 which covers spiral wound gaskets requires the use of solid metal inner rings for Class 900# nominal pipe sizes 24” and larger, Class 1500# nominal pipe sizes 12” and larger with Class 1500# and Class 2500# nominal pipe sizes 4” and larger. Also all PTFE filled gaskets require the use of solid inner rings. ASME B16.20 recommends the use of inner rings for the following applications:


  • Vacuum service or suction side of rotary equipment such as pumps and
  • Aggressive media, high pressure or temperature.
  • Surface finishes smoother than 125 micro-inch.
  • If over compression of the gasket is a concern.

It is customary to select inner ring material to be the same as the metal winding. Spiralwound gaskets are available in a variety of styles to suit the particular flange facing being utilized on the flanges.

Non-Asbestos Gaskets

The glass and cellulose fiber based sheet with a blend of natural and nitrille rubber binder. This is ideal for hydrotesting and other low temperature, non-critical applications. The Gaskets with high quality aramid fiber sheet with an NBR binder, are excellent for sealing steam, water, gases, oils, mild solvents and/or alkalis.

Ring Type Joints Gaskets

RTJ (Ring Type Joint) gaskets are supplied in accordance with API-6A and ANSI B16.2 specifications. API ring joints come in two basic types, oval and an octagonal shape. These basic shapes are used in pressures up to 10,000 psi. The dimensions are standardized and require specially grooved flanges. The octagonal cross section has a higher sealing efficiency than the oval and would be the preferred gasket. RTJ’s have “R” numbers assigned to them for pipe size and pressure class identification. Our stock supply include soft iron, low carbon steel, 4-6 chrome (f5), 304, 304L, 316, 316L, 347, Monel, Inconel and Incoloy. Titanium Gaskets are made to order.

Ring Type Joints Gaskets with Rubber Coating

This is an oval ring type joint which is totally enclosed in a nitrile rubber coating. The ring type joint material is usually soft iron or low carbon steel. This type of gasket has three main functions: Normally, it is used in pressure testing to minimize damage to flanges. The rubber contact points provide additional seals while protecting the flange surfaces. It provides increased assurance against corrosion, which can occur between conventional ring type joints and the engaged surfaces of the groove.

Rubber Division

Special Parts

  • Various parts for automative industry
  • Spare-parts for industrial Vehicles
  • Spare-parts for automotive
  • Valve membranes and various Seals
  • Gas-masks
  • Various part for industry petrols-chemical-nuclear
  • Rubber + P.T.F.E. parts
Standard Products

  • O-Rings in Nitrile, Silicone and Flourosilicone Rubber
  • Oil Seals in Nitrile, Silicone and Flourosilicone Rubber
  • Plates in Siliconeand Flourosilicone Elastomers
  • Tubes

Metal Plastic Division

Ring Joints

  • Soft iron
  • Carbon steel
  • Stainless steel
  • Special materials
Spiral Wound Gaskets

  • Stainless steel
  • Special steel
  • Sevalgraf
  • P.T.F.E.
  • Asbestos free
Metal Jacketed

  • Stainless steel
  • Special steel
  • Sevalgraf
  • P.T.F.E.
  • Asbestos free

Packings Division


  • Vegetables fibers
  • Mineral fibers
  • Synthetic fibers
Coated Flexible Tubes

  • P.T.F.E.
  • Silicone and Flourosilicone

P.T.F.E Division

Semi-finished Products

  • Extruded Tubes, Rods, Plates
  • Skived tape
  • Impregnated glass fabric
  • Non sintered tape
Finished Products

  • Seats and Seals for balls valves
  • Bellows
  • Valve membranes
  • Turned parts for electronics
  • Rusching Rings
  • Sliding shoes
  • Various parts on drawing
  • Special parts moulded by isostatic system

Semifinished Products

  • Plates 1500 X 1500 X 0,5 / 3 mm
  • Tapes, Tubes, etc.