G-ST-P / HTB-gaskets

G-ST-P / HTB-gaskets

The G-ST gasket for higher thermal load capacity, is a gasket consisting of a comb-profiled back-up ring made of stainless steel 1.4571, with graphite coating on both sides and elastomer gasket lip made of NBR-DUO-EL. This gasket is used in particular in the field of house connection technology and in fire extinguishing systems.

Certified according to DIN EN 682, DIN EN 681-1 and DIN 30653 (formerly VP401), the G-ST/HTB meets all necessary requirements.

The special design and combination of different materials effectively eliminates problems that can occur with pure graphite gaskets during bead breaking or in operation afterwards.


Your advantages when using HTB gaskets


Very good gasket properties


Certified for use in supply lines and components for gas and liquid hydrocarbons (DIN EN 682)


Drinking water certified (DIN EN 681-1)


Certified for use for screwed connections and flanges in connection with gas meters and pressure regulators as well as flange connections in gas installations (DIN 30653)

Technical informationen



DN 25 to DN 250 (others on request)



Stainless steel, NBR-DUO-EL, Graphite


DIN EN 682 & DIN 30653 (former VP401)


Special feature

Higher thermal loadable gasket

Applications of gaskets for higher thermal loads

The rubber-steel gaskets for higher thermal loads are used wherever high demands are made on the reliability of gaskets – e.g. that high thermal loads do not cause gas or water to escape in an uncontrolled manner.




The HTB gaskets are therefore used in the following areas of application:

Download catalog


You will find the complete range of rubber-steel gaskets in our product catalog.

katalog kroll & ziller

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    Kroll & Ziller Germany

    Reisholzstrasse 15
    D-40721 Hilden
    P.O. Box 970

    Sales export

    Phone .: 0049 (0) 2103 / 951- 0
    Fax: 0049 (0) 2103 / 951-510
    Email: info@kroll-ziller.de

    Domestic sales

    Phone .: 0049 (0) 2103 / 951- 0
    Fax: 0049 (0) 2103 / 951-508 / 509
    Email: info@kroll-ziller.de