Posted on August 21, 2014 by Martin Fisher -
Welded seam single skin lining made from 0.1mm 316 grade stainless steel.
Approved for condensing boilers.
Approved for positive pressure.
SIZES
125, 150, 175, 200, 250, 300, 350, 400, 450, 500mm
BSRIA tested to BSEN 1856-2
Light weight
Cost effective
Easy to install
Good selection of sizes available
Both flexible and durable
Posted on August 21, 2014 by Martin Fisher -
Stock range to DW144 ductwork standards. Any special design/fabrication available to order.
Also with the value added product ranges such as Well-Safe (gasket sealed ductwork), Wells-Twin (pre-insulated ductwork), Wells Colorducts and Wells-Vent (flat-oval) giving your a wider range of choice here at Wells.
Considerable material cost savings Due to the reinforcing effect of the 4-ply lockseam.
High Strength – low cost
Tube length unlimited
Rapid availability due to high levels of stock.
A wide range of fitting available, along with bespoke items manufactured to requirements
Versatile products
Posted on July 9, 2014 by Martin Fisher -
The coefficients of friction are the ratio of the actual force transmitted to the pile along its length to the calculated forces acting on the outer face of the pile (usually as predicted from soil investigations, of down drag, heave or negative skin friction). Our spiral tubes can be provided with a twin skin outer casing to reduce friction coefficients. The friction coefficient for twin plastic skins will be 0.2. For cases where very low coefficients are required, an inert, long life lubricant can be provided to form a greased sleeve wherein the friction coefficient reduces to approximately 0.1. It should be noted that the friction casings have very high chemical resistance and are inert to most reactants. The casings can therfore be used to prohibit corrosion and damp penetration to the pile.
This “twin-wall” system uses an external HDPE sleeve casing to reduce the friction co-efficient to as low as 0.2 and 0.1. The result is a unique answer to resist short term hydrostatic pressures from fresh concrete in weak surrounding soil, and long term subsoil movement, especially clay heave and negative skin friction. Uplift forces can be reduced by between 50% and 75%.
Diameters up to 2.2m readily available.
Ultra low friction coefficients down to 0.1
Uplift forces reduced between 50% and 70%
Negative skin friction reduced by 80% to 90%
Significant savings on pile size and reinforcements
Very high chemical resistance to sleeve
Mild steel, galvanised steel and other coated variants available
Posted on July 8, 2014 by Martin Fisher -
Feed and vent pipes (typically 4″ and 6″ diameter) can be supplied for new or old systems together with a full range of ducting for parlour feed supply.
Rodent resistant.
Long-life Aluzinc and galvanised steel.
Weather protected and fire resistant.
Posted on July 8, 2014 by Martin Fisher -
Used for cooling hot spots or small grain piles.
Supplied in part perforated/part solid, these pipes are typically 4″ diameter and approximately 8 feet long (although variations are available).
Peforated and solid ducts
High-strength/low-weight
Rapid manufacture
Long-life Aluzinc and galvanised steel
Weather protected and fire resistant
Rodent resistant
Posted on July 8, 2014 by Martin Fisher -
A wide range of stock and made to order products are available for applications such as extract and supply ventilation systems, dust extraction, bulk conveying and handling, chimneys and vents.
Considerable material cost savings due to the reinforcing effect of the 4-ply lockseam.
Roundness perfect tube roundness ensured.
Tube length unlimited
High strength low cost
Bespoke one off systems and products
Posted on July 8, 2014 by Martin Fisher -
Posted on July 8, 2014 by Martin Fisher -
Posted on July 8, 2014 by Martin Fisher -
Posted on July 4, 2014 by Martin Fisher -
Established in 1967 Wells are one of the oldest and biggest British Independents in the business and offer by far the widest range of standard and tailor-made spiral tubes in Europe. Our fourteen tube manufacturing machines enable us to produce spiral tubing in mild steel, galvanised, aluzinc, aluminium and stainless steel as standard in diameters from 41mm up to 2200mm, and in gauges from 0.4mm up to 2.5mm. This facility is backed up by an integral sheet metal work fabrication unit employing the latest CAD/CAM plasma techniques. We believe this capacity to be unrivalled in Europe, and our speed, quality of manufacture, delivery and reputation are unequalled by anyone.
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