Each device with threaded fittings and threaded fittings reducer, to work with 25mm or 20mm pipe and nut connections. Nut must meet the IP level. Impact-resistant base and the cover installed in almost all conditions, can withstand a violent collision. The two parts by a weather-resistant gasket seal. About security, a 7mm diameter hole for the lever locked in the OFF position. Depth of installation of partitions to ensure that the operating lever to prevent accidental operation. All devices meet IEC60947-3. Standard color is gray and white.
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UKF series of w 
