Shanghai Yuejin Original Spring Safety Valve AK28W-16T AK28X2-16T, Brass Full Lift Thread Relief Valve for Air Compressor Air Tank

**Shanghai Yuejin AK28W-16T / AK28X2-16T spring full lift safety valve**, original brass body, spring direct load structure, external thread inlet with manual test lever for on-site inspection. AK28W-16T metal hard seal for high temperature condition; AK28X2-16T rubber soft seal for better sealing performance, mainly for compressed air. Nominal pressure PN16, sizes DN15,DN20,DN25,DN32,DN40,DN50. When pressure inside air tank, air compressor or pressure vessel exceeds preset value, valve fully opens for large flow relief and automatically reseats after pressure drops. Pre-adjustable set pressure, vertical installation required, easy maintenance. Widely applied on screw compressor air receiver, oil-gas separator and air pressure vessel.