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ENVELOPE PTFE GASKETS

For glass-lined steel pipe flanges, nozzles, manways and clamp tops.

RING GASKETS

Slit or machined envelope type.
Slit Envelope
(CLT or CWA filler)
Machined Envelope
(CLT or CWA filler)
Slit Envelope
(CRT filler)
Machined Envelope
(CRT filler)
Filler Materials Available

• CLT.......
Compressed asbestos with felted asbestos on each side.

• CRT......
Corrugated steel with felted asbestos on each side.

• CWA.....
Compressed asbestos with woven asbestos on each side.
Available Sizes

NOMINAL SIZE
I.D.
CRT
O.D.
CLT/CWA
O.D.
NOMINAL SIZE
I.D.
CRT
O.D.
CLT/CWA
O.D.
1/2"
1/2"
1 7/8"
1 7/8"
14A"
14"
17"
17"
3/4"
3/4"
2 1/4"
2 1/4"
14B"
14"
-
17 1/2"
1"
1"
2 1/2"
2 1/2"
14 1/2"
15 3/4"
19"
19"
1 1/2"
1 1/2"
3 3/8"
3 3/8"
16"
16"
19"
19 1/2"
2"
2"
4"
4"
16A"
16"
-
19"
3"
3"
5 3/8"
5 3/8"
18"
18"
21"
23"
3 1/4"
3 1/4"
-
5 3/8"
18A"
18"
23"
21 1/2"
4"
4"
6 1/2"
6 1/2"
18B"
18"
-
21"
5"
5"
7 1/2"
7 1/2"
20"
20"
23"
23 1/2"
6"
6"
8 1/2"
8 1/2"
20A"
20"
23 1/2"
23"
8"
8"
10 1/2"
10 1/2"
20B"
20"
-
22 1/2"
10"
10"
13"
13"
22"
22"
25"
25"
12"
12"
15 1/2"
15 1/2"
22A"
22"
-
25 1/2"
12A"
12"
15"
15"
24"
24"
28"
27"
14"
14"
16 1/2"
16 1/2"
24A"
24"
27"
27"

For gasket sizes over 24" please contact us.
(Outside diameters are smaller than ANSI ring gasket standards on some sizes.)
All sizes available with 3/16" or 3/8" thick fillers.
ELLIPTICAL MANWAY GASKETS

Designed to fit Pfaudler or similar elliptical openings. Other elliptical configurations available upon receipt of templates. Formed type shield F with CLT, CRT, or CWA fillers same as offered on ring gaskets above. Standard ellipses are supplied unless otherwise specified. Please supply paper template to be certain of proper fit on gaskets ordered. When ordering elliptical gaskets, unless a template is supplied, please supply inside gasket length and width (ID), flange width and filler thickness and type (CLT, CRT, CWA).
Formed Envelope
(CLT or CWA filler)
Formed Envelope
(CRT filler)
Available Sizes

INSIDE
DIAMETER
FLANGE
WIDTH
FILLER
THICKNESS
12" x 16"
1 3/4" - 2" - 2 1/4"
3/16" & 3/8"
13" x 17"
1 3/4" - 2 - 2 1/4"
3/16" & 3/8"
14" x 18"
1 3/4" - 2 - 2 1/4"
3/16" & 3/8"

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PHONE

CALL FREE IN THE U.S.
(800) 659-5050
LOCAL & INTERNATIONAL
(770) 389-0501


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FAX

FAX FREE IN THE U.S.
(888) 353-7325
LOCAL & INTERNATIONAL
(770) 389-0652

Office hours: Monday - Friday, 8:00 a.m. to 5:00 p.m. (ET). On call 24/7 for Seal EMERGENCY!

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