Common Valve Packing & Gasket Materials and Their Service Temperatures

No.

Name

Service Temperature (°C)

1

Flexible Graphite Packing Ring

≤600

2

PTFE Packing Ring

≤200

3

Stainless Steel Wire + Flexible Graphite Braided Packing

≤600

4

Expanded PTFE Graphite Tape Braided Packing

≤250

5

Oil-Impregnated Asbestos Rope

≤450

6

Graphite-Asbestos Rope

≤450

No.

Name

Service Temperature (°C)

1

Natural Rubber

-50 to 90

2

Neoprene Rubber

-40 to 100

3

Nitrile Rubber

-30 to 110

4

Styrene-Butadiene Rubber (SBR)

-30 to 100

5

EPDM Rubber

-40 to 130

6

Fluororubber (FKM/Viton)

-50 to 200

7

Asbestos Rubber Sheet

≤300

8

Synthetic Fiber Rubber

-40 to 200

9

PTFE

≤200

10

Low Carbon Steel + Flexible Graphite Composite Gasket

≤450

11

SS 304 + Flexible Graphite Composite Gasket

≤650

12

Pure Aluminum Sheet (L3) + Asbestos Rubber Jacketed Gasket

≤200

13

Pure Copper Sheet (T3) + Asbestos Rubber Jacketed Gasket

≤300

14

Tin-Plated Copper Sheet + Asbestos Rubber Jacketed Gasket

≤400

15

Galvanized Copper Sheet + Asbestos Rubber Jacketed Gasket

≤400

16

0Cr18Ni9 + Asbestos Rubber Jacketed Gasket

≤500

17

00Cr19Ni10 + Asbestos Rubber Jacketed Gasket

≤500

18

00Cr17Ni14Mo2 + Asbestos Rubber Jacketed Gasket

≤500

19

0Cr18Ni9 + Special Asbestos Paper Fiber Wound Gasket

≤500

20

0Cr17Ni14Mo2 + Flexible Graphite Tape Spiral Wound Gasket

≤650

21

00Cr17Ni14Mo2 + PTFE Spiral Wound Gasket

≤200

22

10 or 08 Steel + Flexible Graphite Serrated Composite Gasket

≤450

23

0Cr13 + Flexible Graphite Serrated Composite Gasket

≤540

24

SS 304 + Flexible Graphite Serrated Composite Gasket

≤650

25

SS 316 + PTFE Serrated Composite Gasket

≤200

26

PTFE with Glass Fiber Reinforcement

-100 to 260