NFT 650 Series are float and thermostatic steam traps.
Float is free of levers, linkages or other mechanical connections. This float is weighted to maintain orientation and acts as the valve being free to modulate condensate through the seat ring. Air vent is balanced-pressure design with stainless steel welded encapsulated bellows capable of discharging air and Nicholson NFT 650 Series Steam Trap non-condensable gases continuously within 15°F / -9.4°C of saturated temperature. Trap contains integral strainer and stainless steel exhaust port sleeve.