The O-ring seal is positioned on the spigot end.

This type of joint consists of an integral filament wound socket end and a machined spigot end. The preparation of this rigid joint requires good craftsmanship. In general these joints will only be used for diameter over 300mm. Also, special requirements can be met upon request To enable connections with steel and to allow for easy assembling and disassembling of process lines, Extra Co pipes and fittings can be supplied with flanges, drilled in accordance with ANSI, BS, DIN or other specifications. The outer finish consists of resin topcoat The structural wall consists of glass rovings impregnated with resin wound at precisely set helical winding patterns under uniform tension for various designs.

The inner liner thickness of pipes is approximately 0.5 / 4mm, reinforced with 'C' glass veil and available with higher thickness, if required. Additional external protection can be applied to allow for additional fire-retardance. For industrial applications in media temperature upto 120☌. Used mainly in aboveground applications in media temperature upto 85☌. For industrial applications where specific chemical resistance is required.

GRV Using Vinylester Resin throughout.

For both underground and aboveground applications, restrained and non-restrained systems, in media temperature upto 60☌.

GRP Using Isophtalic Resin in structural wall and Vinylester Resin in liner (where applicable).

Excellent fatigue-resistance under cyclic loadingĭifferent types of resins are used, for different type of products:.

Superior mechanical and chemical properties.

Low shrinkage with lesser stress in finished product.

Glass Reinforced Plastics 'GRP' or Reinforced Thermosetting Resin 'RTR' pipes exhibit,

Range of pipes size and application Series.

For industrial application in media temperature upto 120 C. Used mainly in aboveground applications in media temperature upto 85 0C. For Industrial application where specific chemical resistance is required. For both underground and aboveground applications, restrained and non-restrained systems, in media temperature upto 60 0C.

GRP Using Isophtalic Resin is structural wall and Isophtalic in liner (where applicable).

Glass Reinforced Plastics “GRP” or Reinforced Thermosetting Resin ‘RTR’ pipes exhibit excellent adhesion, fatigue-resistance, impact strength, chemical-resistance and low shrinkage, leading to lesser stresses in the finished pipe, superior mechanical and chemical properties, long-term performance and excellent fatigue-resistance under cyclic loading.ĭifferent types of resins are used, leading to the following caterogies:

Astm standards for pipes