Quick Reference Selection Guide

GASKETS

Engineering Data/FAQs

Quick Reference Selection Guide

To be considered acceptable for a specific application, a product must meet the criteria in all four of the categories shown below. Acceptable values are marked with a "*".

IFG^(a)
5500 Style^(b)
G-9900 Style^(c)
3125 Style^(d)
ST-706 Style^(e)
3500 Style^(f)
3510 Style^(g)
3545

I. Flange
   Materials Metallic * * * * * * *

Non-Metallic *

II. Continuous
    Operating
    Temperature
    (COT) Amb. -200ºF
(20ºC - 95ºC) * * * * * * *

200ºF - 300ºF
(95ºC - 150ºC) * * * * * * *

300ºF - 400ºF
(150ºC - 205ºC) * * * * * * *

400ºF - 500ºF
(205ºC - 260ºC) * * * * * * *

500ºF - 650ºF
(260ºC - 345ºC) * * *

650ºF - 750ºF
(345ºC - 400ºC) * *

750ºF - 1200ºF
(400ºC - 650ºC) **

III. Application
    Pressure Vacuum - 250 psig
(Vacuum - 17 bar) * * * * * * *

Vacuum - 1000 psig
(Vacuum - 69 bar) * * * * * * *

Vacuum - 1500 psig
(Vacuum - 103 bar) * * *

Vacuum - 2000 psig
(Vacuum - 138 bar) * *

IV. PxT values 0-50,000 psig ºF
(0-1,500 bar ºC) * * * * * * *

0-350,000 psig ºF
(0-12,000 bar ºC) *¹ * * *² * * *

0-700,000 psig ºF
(0-25,000 bar ºC) *³ *³

(a) IFG® 5500 General Service
(b) Style G-9900 High Temperature
(c) Style 3125 SS/TC High Temperature
(d) Style ST-706 Saturated, Superheated Steam
(e) Style 3500 GYLON® Agressive Chemicals
(f) Style 3510 GYLON® Agressive Chemicals
(g) Style 3545 GYLON® Agressive Chemicals

This chart does not take special operation conditions into consideration. i.e., pressure surges, temperature cycling and flange design.

P x T max. = psig x ºF (bar x ºC)

1/8" (3.2mm) thick IFG® is rated at 250,000 P x T
1/8" thick ST-706 is rated at 500,000 P x T
1/8' thick G-9900 and 3125SS/TC are rated at 350,000 P x T

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