<3. INSTALLATION>
3-13
IM 01E30D01-01EN
3.3.4 Gaskets Size
Be sure to choose a gasket with an inner and outer
diameter that does not protrude inside the piping.
If the inner diameter of the gasket is too large,
or outer diameter of the gasket is too small, fluid
leakage may result.
Table 3.3.12 Inner Diameters of Grounding Ring,
Outer Diameter for Effective Sealing,
Recommended Inner Diameter of
Gasket
Lay length code 1;
Unit: mm (in.)
Size
PFA lining
Wafer, Flange
Inner
Diameter of
Grounding
Ring
[øA]
Outer
Diameter
for
Effective
Sealing
[øB]
Recommended Inner
Diameter of Gasket
Flat
Gasket
[øC]
PTFE-
sheathed
Non-
asbestos
Gasket
[øD]
25
(1.0)
28
(1.10)
53
(2.09)
35 (1.38)
40
(1.5)
41
(1.61)
71
(2.80)
49 (1.93)
50
(2.0)
53
(2.09)
84
(3.31)
61 (2.40)
65
(2.5)
66
(2.60)
103
(4.06)
84 (3.31)
80
(3.0)
77
(3.03)
114
(4.49)
90 (3.54)
100
(4.0)
102
(4.02)
140
(5.51)
115 (4.53)
150
(6.0) 146.1
(5.75) 190
(7.48)
167 (6.57)
200
(8.0) 193.6
(7.62) 240
(9.45)
218 (8.58)
Lay length code 2;
Unit: mm (in.)
Size
PFA lining
Wafer
Inner
Diameter of
Grounding
Ring
[øA]
Outer
Diameter
for
Effective
Sealing
[øB]
Recommended Inner
Diameter of Gasket
Flat
Gasket
[øC]
PTFE-
sheathed
Non-
asbestos
Gasket
[øD]
25 (1.0)
28 (1.10)
53 (2.09)
35 (1.38)
40 (1.5)
41 (1.61)
71 (2.80)
49 (1.93)
50 (2.0)
53 (2.09)
84 (3.31)
61 (2.40)
65 (2.5)
66 (2.60)
103 (4.06)
84 (3.31)
80 (3.0)
77 (3.03)
114 (4.49)
90 (3.54)
100 (4.0)
102 (4.02)
140 (5.51)
115 (4.53)
150 (6.0) 140.7 (5.54) 190 (7.48)
167 (6.57)
200 (8.0) 188.9 (7.44) 240 (9.45)
218 (8.58)
F0311.ai
Lining
AXR
Flowtube
Grounding Ring
Flat Gasket
PTFE-sheathed Non-asbestos Gasket
Size of Inner Diameter of Grounding Ring,
Outer Diameter for Effective Sealing and
Recommended Inner Diameter of Gasket:
øC
øD
øB
øA
*1
*1: Do not have this length be smaller than the
inner diameter of grounding ring (øA).