The heart of Wellmaster is a continuous woven circular sock of high modulus synthetic yarn. It provides both the tensile and burst strength to enable the riser to be used at depths of 200 metres, and beyond in some cases, without the need for any other support system. The continuous sock is fed through an extruder with anvil and the polymer elastomer coating is injected through the sock to form both the inside and outside coatings. The inside coating, of course, makes the riser water-proof, while the outer coating provides protection for the all important inner sock. The polymer elastomer is used for a high abrasion resistance and in fact is the same elastomer used to coat steel pipes when abrasive slurries are being pumped. 

The benefits to be gained from using Wellmaster are many and varied. As a result of its long life expectancy, it continues to provide financial bonuses for many years. 

The Wellmaster family of products currently consists of three ranges: 

WM200 - "THE ULTIMATE"

• The premier rising main in the world market. It is suitable for bore depths to 200 metres (and beyond in suitable conditions) with a working pressure to 258 metres. Sizes currently range from 50mm to 150mm nominal internal diameter.

WM120 - "THE ECONOMISER"

• Ideal for shallower bores but with the same benefits and features as its famous brother. WM120 is suitable for bore depths to 120 metres and working pressures to 150 metres. Sizes currently range from 50mm to 100mm nominal internal diameter.

WM100 - "THE COMMUNITY PROVIDER" 

• Widely used in low yielding bores in small communities and rural water supply applications. WM100 is suitable for bore depths to 120 metres and working pressures to 150 metres. Available in 38mm nominal internal diameter only.