restrained flange adapter it can lock the pipe after installation.The restraint flange adaptorspecification is as following:

OD	Dimensions	Type of Pipes	Flange Infor.
	L2		DN	PN10/16	BS10/D	BS10/E	ANSI/150
63	116	PVC;PE	80	√			√
90	121	PVC;PE	80	√			√
110	125	PVC;PE	100	√	√	√	√
125	162	PVC;PE	100	√	√	√	√
160	150	PVC;PE	150	√			√
180	185	PVC;PE	150	√			√
225	185	PVC;PE	200	√	√	√	√
250	199	PVC;PE	250	√		√	√
280	209	PVC;PE	250	√		√	√
315	219	PVC;PE	300	√			√