Stecko type couplings produced by Darmet Sp. z o.o. are used to connect hoses in hydraulic equipment used in the mining industry.

We manufacture a wide range of connectors with diameters DN6, DN10, DN12, DN19, DN25, DN31,DN38 oraz DN51. All hydraulic fittings are made on modern CNC machines. We have three CNC lathes with bar feeder and four CNC vertical machining centers. With modern CNC machinery and well qualified staff we guarantee high quality of our products. We offer also short delivery time.

The entire range of hydraulic fittings includes:

Straight Male	Reducing Double Male	Reducing Female - Male	Straight Female	Reducing Straight Female
90° Female	90° Female - Male	90° Female - Male with thread M16x1,5	90° Female - Male with thread M20x1,5	Reducing 90° Female - Male
Female Tee	Female Tee Y-type	Reducing Female Tee	Reducing Female Tee with lug	Reducing Female Tee with side lug
Female-Male Tee L-type	Female-Male Tee T-type	Female Cross	Female Connector for welding	Male plug
Reusable fittings

All offered hydraulic adapters have certificate KOMAG Institute of Mining Technology in Gliwice.This certificate allows for the use of our connectors in underground coal mines and salt.

Couplings with diameter DN6, 10, 12, 19, 25 and 31 are carried out in accordance with the Polish Standard PN-G-32000: 2011. However connectors with a nominal diameter DN38 and DN51 are produced in accordance with DIN 20043:2003-09.

Complete connector consists of the female adapter and male adapter with back up washer, sealing o-ring and the U-shaped staple.

All manufactured fittings are protected against corrosion by the 8?m zinc coating.

The working pressure for the couplings are shown in the table: