Skip to content

Water and irrigation sector

STP, polypropylene compression fittings and valves

TAG is also specialized in the injection of thermoplastics for the industrial sector and has the important STP line of compression accessories for water and irrigation. 

In 2023, TAG Automotive acquired the prestigious STP brand (Sociedad de Transformación de Plasticos, S.A.), specialized in PP compression fittings and valves. The acquisition included its complete production unit, which includes brands, molds, machines, laboratories and know-how.

The STP brand and its wide range of products have been manufactured in our facilities since 2022 and have been distributed internationally for more than 20 years. With its vast experience and high demands on product quality, essential in the automotive sector, TAG reinforces the prestige of the renowned STP brand. 

We provide the water and irrigation sector with high quality products using a universal and modern design.

We provide the water and irrigation sector with high quality products using a universal and modern design.

Product range

The Plast range of compression fittings is designed, manufactured and tested under a strict ISO 9001:2000 quality control system to meet the requirements of ISO 14236. This standard incorporates the previous CEN and ISO standards and sets out the testing requirements that guarantee an estimated useful life of 50 years. 

PLAST

PP (polypropylene) compression fittings for joining PE (polyethylene) pipes. They are designed to withstand pressure up to PN16 and are available in diameters from DN16 to DN110. Available in Blue and Black colors. Being in contact with water, our entire PLAST range complies with international ISO standards, where applicable, and contains no toxic additives, ensuring safety in drinking water systems and other uses.
PP (polypropylene) compression fittings for joining PE (polyethylene) pipes with a PREMIUM design. The fittings are designed to withstand pressure up to PN16 and are available in diameters from DN16 to DN110. Available in Gray color. Being in contact with water, our entire PREMIUM PLAST range complies with international ISO standards, where applicable, and contains no toxic additives, ensuring safety in drinking water systems and other uses.

PREMIUM PLAST

PP (polypropylene) compression fittings for joining PE (polyethylene) pipes with a PREMIUM design. The fittings are designed to withstand pressure up to PN16 and are available in diameters from DN16 to DN110. Available in Gray color. Being in contact with water, our entire PREMIUM PLAST range complies with international ISO standards, where applicable, and contains no toxic additives, ensuring safety in drinking water systems and other uses.
The ultimate solution in polypropylene compression fittings for repairs, maintenance, replacements, through joining any type of pipe between 15mm or ½" and 50mm or 1 ½" regardless of material. Drinking water connections, subscriber connections, irrigation installations, gardening, agriculture, food-grade piping, water treatment, mining, fresh or saltwater pools, industry, telecommunications, among others.

PLAST UNIVERSAL

The ultimate solution in polypropylene compression fittings for repairs, maintenance, replacements, through joining any type of pipe between 15mm or ½” and 50mm or 1 ½” regardless of material. Drinking water connections, subscriber connections, irrigation installations, gardening, agriculture, food-grade piping, water treatment, mining, fresh or saltwater pools, industry, telecommunications, among others.
Fittings: For transitions or connections of PLAST fittings or any threaded element of the network. Threaded Valves with different combinations (M/F) for channeling. Drinking water connections, subscriber connections, irrigation installations, gardening, agriculture, water treatment, mining, pools, industry, etc.

PE-PVC VALVES

Fittings: For transitions or connections of PLAST fittings or any threaded element of the network. Threaded Valves with different combinations (M/F) for channeling. Drinking water connections, subscriber connections, irrigation installations, gardening, agriculture, water treatment, mining, pools, industry, etc.
The Transition Plast allows the connection of any metal or plastic pipe (15 mm – ½" to 50 mm – 1 ½") for PE pipes from DN16 to DN63. The PP Transition Plast Fitting is essential for water companies in pipe renovation and maintenance operations, drinking water connections, subscriber connections, irrigation installations, gardening, agriculture, and channeling.

T Plast (Transition)

The Transition Plast allows the connection of any metal or plastic pipe (15 mm – ½” to 50 mm – 1 ½”) for PE pipes from DN16 to DN63. The PP Transition Plast Fitting is essential for water companies in pipe renovation and maintenance operations, drinking water connections, subscriber connections, irrigation installations, gardening, agriculture, and channeling.

STP contact

If you have any questions or concerns that you would like to ask us, or simply need more information about our services, please contact us. We will be happy to provide you with all the answers you need.

Carrer de Bosch i Gimpera 2-4,
08223 Terrasa, Barcelona