ANTI-DROPPING STEEL RNG USED IN PRESS-FITTING TYPE PIPE FITTING AND FIXING SEALING DEVICE
An anti-off steel ring (11) for a snap-fit pipe fitting and a fixed sealing device (3) comprising the anti-off steel ring (11). The anti-off steel ring (11) has a first bite portion (112) and a second bite portion (111) distributed in the circumferential direction. The first bite portion (112) is configured to radially extend from an inner circumferential wall of the anti-off steel ring (11), and the second bite portion (111) is configured to axially extend from the periphery of the anti-off steel ring (11) and tilt inward.