Plastica Alfa

Plastica Alfa's core MDPE product line covers pipe from 20mm to 125mm. It includes couplings, reducing couplings, repair couplings, 90° elbows, equal and reducing tees and end caps. Male and female threaded adaptors, tees and elbows connect MDPE to threaded pipework and equipment. Wall plate elbows and flanged adaptors, including elbow and tee flange adaptors, complete the range.

Each fitting has a UV-stabilised black polypropylene body with a blue polypropylene nut, an acetal resin (POM) clinching ring and an NBR gasket. The fittings are rated to PN16, and sizes from 20mm to 110mm are WRAS approved for potable water.

You don't need to strip the fitting down before installing it. The nut is loosened, the lined pipe is pushed through the seal, and the joint is tightened by hand before a final turn with a strap wrench. Plastica Alfa recommends a pipe liner in every joint to support the pipe wall and keep the connection secure.

The polypropylene threaded range covers sizes from 1/2" to 4" for water and general fluid transfer. It includes tees, elbows, sockets, nipples, reducing nipples, caps and tank connectors, so installers can build complete threaded assemblies, adapt between sizes, or make leak-free connections into tanks and vessels.

The fittings are moulded from UV-stabilised, high-impact black polypropylene with high ageing stability. This suits both indoor and exposed outdoor installations, and polypropylene will not corrode in the way metal fittings can.

Barbed fittings join flexible tubing and hose in low-pressure systems. Ridges on each spigot grip the inside of the hose to form a secure, leak-resistant joint without threading or compression components.

The range includes elbows, tees and hose adaptors. Male threaded hose adaptors let hose connect directly to female threaded fittings, pumps and other equipment. The fittings are made from UV-stabilised, high-impact black polypropylene, which makes them well suited to irrigation, garden watering and general fluid transfer.

Plastica Alfa ball valves give straightforward isolation and flow control on MDPE water supply lines. They come in compression-by-compression and compression-by-female-thread configurations from 20mm to 63mm. The compression ends use the same connection method as the fitting range, so no specialist tools are needed.

The valve bodies are polypropylene with NBR O-rings and are rated to 16 bar. Like all compression joints in the range, the valves should be installed with a pipe liner.

The Ice Valve is designed for exposed or seasonal installations. It has a single-piece polypropylene copolymer body that withstands repeated freeze and thaw cycles, with an operating range of -20°C to +75°C.

Screen filters are the first line of protection in irrigation systems, removing hard particles such as sand before they reach drippers, sprinklers and valves. The Y-pattern in-line filters range from 3/4" to 2" and have polypropylene bodies rated to 8 bar.

Each filter takes a 120 mesh screen cartridge. A built-in bleed plug lets the filter be flushed in place, or the cartridge can be removed and cleaned by hand. Replacement cartridges are available, including stainless steel alternatives for extra durability.

Disc filters handle a wider range of contaminants than screen filters, trapping both inorganic particles such as sand and organic matter such as algae. This makes them well suited to water drawn from ponds, reservoirs, rivers and storage tanks.

The filters have polypropylene bodies rated to 8 bar, with male BSP threads for straightforward installation. A 120 mesh disc cartridge does the filtering, and it can be removed and cleaned by hand with a hose.

Clamp saddles make a threaded branch off an existing pipe without cutting it. The saddle is bolted around the pipe with its O-ring seated, then the pipe is drilled through the outlet to open the branch. A male threaded pipe or fitting connects to the female BSP outlet.

The bodies are UV-stabilised, high-impact black polypropylene. Stainless steel reinforcing rings around the outlet thread keep the threaded joint strong under pressure, and an NBR gasket seals against the pipe. Single and double clamp saddles are available.

Pressure ratings for clamp saddles are given at 20°C and reduce as the operating temperature rises. Typical uses include branch connections on potable water mains, irrigation networks and garden watering systems.

Valve boxes provide protected, accessible housing for buried valves, meters and irrigation control modules. They come in round and rectangular formats. Each box has a lockable lid to prevent unauthorised access, and the polypropylene construction resists deformation under load. A UV-stabilised cover helps maintain performance when exposed to sunlight, and the boxes are manufactured in accordance with UNI EN 124.

The range also includes a valve box with an integrated 3/4" ice-resistant valve. It is rated to 16 bar at 20°C, operates from -30°C to +60°C, and has a BSP threaded connection.

The Alfaturbo hydrocyclone separates sand, slag and heavy solid particles from water using centrifugal force. Water enters the top of the unit and spins around the conical body, which throws heavier particles outward so they settle in the bleed tank. Clean water then rises through the centre and out of the filter.

Because there is no filter element, the Alfaturbo needs no cartridge cleaning or replacement when used correctly. The polymer body resists corrosion and the abrasive wear that suspended solids cause in metal separators. It can be fitted with threaded, flanged, grooved and compression connections.

The Alfaturbo is often installed ahead of screen or disc filters as a pre-filter, which cuts the solids load and extends cleaning intervals. Typical applications include borehole and well water, agriculture, industry, waterworks and domestic supplies.