F91 Pressure forged steel self-sealing check valve
The forged steel check valve is a pressure self-tightening valve cover. The valve designed according to this design form has a valve body and a valve cover which are screwed, and the internal pressure is sealed by a self-sealing ring. The optional sealing discs are available in swing type, lift type, and ball type. The connection standard can be American or GB threaded, welded and flanged.