Filters
Diameter Ø D1 (mm)
Non-return dampers with seal
SNKZ - 100
Spiro check valve with rubber seal ENPRO SNKZ To prevent backflow of air in the circular channel ventilation system. Made of high-quality cold-formed galvanized sheet DX51D. Valve made of aluminum. Thanks to the built-in spring, it automatically closes in the event of a pressure drop. Recommended fo...
SNKZ - 125
Spiro check valve with rubber seal ENPRO SNKZ To prevent backflow of air in the circular channel ventilation system. Made of high-quality cold-formed galvanized sheet DX51D. Valve made of aluminum. Thanks to the built-in spring, it automatically closes in the event of a pressure drop. Recommended fo...
SNKZ - 150
Spiro check valve with rubber seal ENPRO SNKZ To prevent backflow of air in the circular channel ventilation system. Made of high-quality cold-formed galvanized sheet DX51D. Valve made of aluminum. Thanks to the built-in spring, it automatically closes in the event of a pressure drop. Recommended fo...
SNKZ - 160
Spiro check valve with rubber seal ENPRO SNKZ To prevent backflow of air in the circular channel ventilation system. Made of high-quality cold-formed galvanized sheet DX51D. Valve made of aluminum. Thanks to the built-in spring, it automatically closes in the event of a pressure drop. Recommended fo...
SNKZ - 200
Spiro check valve with rubber seal ENPRO SNKZ To prevent backflow of air in the circular channel ventilation system. Made of high-quality cold-formed galvanized sheet DX51D. Valve made of aluminum. Thanks to the built-in spring, it automatically closes in the event of a pressure drop. Recommended fo...
SNKZ - 250
Spiro check valve with rubber seal ENPRO SNKZ To prevent backflow of air in the circular channel ventilation system. Made of high-quality cold-formed galvanized sheet DX51D. Valve made of aluminum. Thanks to the built-in spring, it automatically closes in the event of a pressure drop. Recommended fo...
SNKZ - 315
Spiro check valve with rubber seal ENPRO SNKZ To prevent backflow of air in the circular channel ventilation system. Made of high-quality cold-formed galvanized sheet DX51D. Valve made of aluminum. Thanks to the built-in spring, it automatically closes in the event of a pressure drop. Recommended fo...