Metal bellow mechanical seal John crane 609 ceramic mechanical seal

Temperature -20---400℃
Speed 20m/s
Pressure 25bar
Standard size 1.0''-4.0''

Type 609: John crane Type 609 replacement


Type 609: Perfect replacement of John crane Type 609 mechanical seal

Structure Description:

Equivalent to John Crane metal bellow seal type 609

Welded metal bellows design

Operating Limits:

Temperature: -20---400℃

Speed: 20m/s

Pressure: 25bar

Standard size: 1.0''-4.0''


Seal ring: Car,Sic,Ssic,TC

Secondary seal: Carbon graphite

Spring and Metal parts:304,316,AM350,HAST.C,Inconel 718,Titanium

609 is a high-temperature (to 425°C/800°F) rotating seal head assembly that incorporates all of the rugged features of the THIJO SDKJFAJF ype 604, but is intended for those demanding applications where a dependable, high-strength, rotating seal is preferred. A narrow cross-section design enables the 609 to fit in the most popular pumps without expensive and time-consuming seal chamber modifications. This makes it the ideal seal for heat transfer, hydrocarbon and other applications that commonly use pumps with limited seal chamber clearances. Typical applications include hot hydrocarbons, aqueous solutions, aromatic fractionation products, crude oil fractionation products and heat transfer fluids.

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