Internal thread spool

Internal thread spool 558 Name: internal thread spool AKA: threaded plunger valve Model: U61SM soft seal, U61H / Y Hard sealing applications - internal thread spool when the handwheel is rotated, driven through the stem the plunger in the guide sleeve in the upper and lower reciprocating motion of the plunger end of the oblique cone and seat cone complete valve opening and closing function. Structural principle - the structural characteristics of the spool is made of a stainless steel plunger and the upper and lower resilient sealing ring and the metal frame to maintain a fixed distance from the upper and lower seal rings composed of columns as 塞尤 stopper generally two sealing insert ring to form a cylindrical contact seal, large sealing area of ??the traditional cut-off valve can not be comparable, the sealing ring against external leakage, lower sealing ring within seal, when leakage occurs long after, if available, by adjusting the valve cover pressure bolts of the first valve port is closed so that the seal ring side seal than the pressure increased, leading to increased pressure through so that leakage of the seal ring to resume seal. Design Advantages - long life; and prompt action; small torque; wear and corrosion resistance; elastomeric seal, to prevent internal leakage; Parameters - Temperature: -20 ℃ ~ 250 Applicable Nominal: PN1.6Mpa Diameter: DN15-DN50