PTFE whole mold sinter: in this product process, the steel part work as mold, PTFE was molded by high pressure, it would be anintegrated steel part after sinter. It shows feature: whole seamless, high-temperature resistance, corrosion resistance,high-pressure resistance, anti-infiltration, anti-vacuum, variable structure allowed, suitable for pipes DN<1000mm.
PTFE extruded pipe-tight lining: corrosion resistance, high-pressure resistance, anti-infiltration, high-temperature resistance, slightly worse anti-vacuum, good for straight pipe <300mm
PTFE on site-adhesive: corrosion resistance, high-pressure resistance, anti-infiltration, high-temperature resistance, slightly worse anti-vacuum, suitable for large tank.
ETFE,PO roll lining: corrosion resistance, high-pressure resistance, anti-infiltration, anti-vacuum, slightly worse
high-temperature resistance, variable structure allowed, whole seamless, suitable for device DN<6000mm.

Metric DN	F4 thick mold thickness (Tightly lined)	Hot roll lining thickness	Adjust part thickness	Flange cover thickness	PTFE washer thickness
25	3(2)	2.5	20~50	Accord to standard thickness of referred flange	3
32	3(2)	2.5	20~50		3
40	4(2.5)	2.5	20~50		3
50	4(3)	3	20~50		3
65	4(3)	3	20~50		3~4
80	5(3)	3	20~50		3~4
100	5(4)	3	20~50		3~4
125	5(4)	3	20~50		3~4
150	5(4)	3	20~50		3~5
200	6(4)	3.5	20~50		3~5
250	6(4)	3.5	20~50		3~5
300	6(4)	3.5	20~50		3~6
350	6(4)	3.5	20~50		3~6
400	7(4)	3.5	20~50		3~6
450	7(4)	3.5	20~50		3~6
500	7(4)	3.5	20~50		3~6
600	7(4)	3.5	20~50		3~6
700	8(4)	3.5	20~50		3~6
800	8(4)	3.5	20~50		3~6
900	8(4)	3.5	20~50		3~6
1000	8(4)	3.5	20~50		3~6