The strength of HTK valves is their absolute
tightness at temperatures up to 950 °C. The triple
eccentricity combined with the special metallic
sealing system in the valve ensures easy opening
and closing, even at extreme temperatures.
Our state-of-the-art welding technology makes it
possible to work with large nominal widths and
enables us a great deal of flexibility with which we
manufacture special lengths and custom-made valves
in accordance to the requirements of our customers.
Whether a heating jacket, single- or double-row
steam injection, or valves that open and close at
extremely high speeds: we provide customised solutions
for the HTK for a wide variety of purposes. The
compact design of the valve, even for large nominal
widths, makes the HTK the valve of choice for both
underground and overhead lines.
The HTK is available both as a standard model and in
a variety of customised designs. The custom-made
• The HTK for ethylene plants
The TLV transferline valve and the DV
• The HTK block & bleed
Two seals are placed one behind the other in the
seal seat. A chamber between the seals can be used
to suction off residual leakages or for barrier media.
• HTK for FCC plants
Valves with expander inlet and bypass for coping
with extremely high temperatures and abrasive
• Optimal tightness
• Withstands high temperatures
• Progressive sealing
• Reliable functioning in any position installed
• Capable of combining various operating tasks:
flow regulation, shut-off function
• Great resilience, even at high switching frequency
• High flexibility due to welded construction
DN 150 / 6 inches to DN 4000 / 160 inches
-196 °C / -320 °F to 950 °C / 1.742 °F
Construction lengths in accordance with
ISO 5752 BS 13 (F16)
ISO 5752 BS 14 (F4)
ASME B 16.10, API 609
Custom-made construction lengths on request
Valves designed in accordance with
international standards, e. g.
AD technical instructions, ANSI, API, ASME, ATEX,
BS, DGRL, DIN EN / ISO, GOST, KTA, MSS, NACE,
Manual, pneumatic, electric, hydraulic
Operating processes can make it necessary to avoid
even the most minor of leakages. In order to achieve
this, two seals are placed one behind the other in the
seal seat with a chamber between them. The chamber
can be pressurised with a barrier medium of liquid or
gas. A leakage detector can also be installed to test
The control and regulation of opening and closing can
be supplemented with a quick-opening and quickclosing
function. The function offers control reaction
times of less than one second.
For use at extremely high temperatures, solid metal
seals are used that are additionally hard-coated. The
sealing parts both on the valve and in the body are
equipped with a low-wear hard facing.
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