A range of high-quality accessories and tools for successful installation of casing and screen. Accessories are available for the full range of sizes produced.

		Centralizers Made of upvc. Should be fixed at regular intervals, to ensure correct vertical installation.
		Top Caps Made of upvc to close and seal top of well casing.
		Reducers Made of upvc to match well screen and casing of different diameters.
		Casing Clamps Made of Steel and hard wood in two halves, internally lined with anti-friction material and complete with nuts and bolts for clamping to casing.
		Bottom Caps V-shape made of uPVC to bottom caps at bottom of pipe assembly.
		Lifting Caps Made of upvc to ensure safe lifting of the casing string during installation.

- Note : Accessories are produced according to industry standards. However, the safe and proper installation of casing/screen is the responsibility of the end-user, who should be fully-trained in all aspects of installation.

Comparison

Comparison between MS and Apollo uPVC Casing Pipes.

No.	Ms Plain / Screen	Apollo upvc Plain / Ribbed-Screen
1.	Costly	Total installation substantially cost effective.
2.	Increased entrance resistance, due to Reduced entrance resistance and increased vertical slot opening.	Reduced entrance resistance and increased collapse resistance, due to horizontal. slot opening.
3.	Low permeability, as more than 50% of slot openings are obstructed by filtering media (gravel pack).	Increased permeability, as the filtering media is 2mm away from the slot opening, due to the ribs on the screens.
4.	The life of tube well may be as low as two years, due to Local action and corrosive soil.	Manufactured from quality PVC compounds. And are totally unaffected by corrosion as PVC is an corrosive soil. inert material.
5.	Slot openings get enlarged and sitting starts, due to erosion in the screen.	Slot openings are not subjected to erosion, do not offer any f low- resistance.
6.	Metal casing and screens are heavy, thus making installation cumbersome and tedious.	The specific gravity of uPVC being 1.4, they weigh only 1/5 1h that of steel casing and screen. This makes it easier to handle and install.
7.	Require special equipment Like welding and generator sets, for assembly and erection.	Manufactured with screwed socket and spigot ends with trapezoidal threads, which require no special equipment to assemble and install.
8.	Screen slot widths cannot be made to suit aquifer sieve analysis, for proper design of the well.	Manufactured with slot widths range from 0.2 mm to 3 mm to suit the aquifer sieve analysis. This helps engineers to design welts with Longer life and better yield.
9.	Cannot be kept vertical, due to its weight	Can be kept vertical, due to centering guides.