icon-Tight shut-off, throttle and control valves

HTK

Utilizing the special ADAMS sealing system the HTK guarantees ultra-tightness for cryogenic and high temperature services.

Due to the triple offset sealing system the disc moves smoothly and free of friction and opens uniformly at all points along the specially designed body seat. When the disc is closed, the seal ring is compressed tightly into the seat without jamming or extruding. Temperature variations are reliably compensated without impairment of function.

All seal materials are reliable and designed for long life. Shafts are sealed by resilient seal rings or stuffing boxes. Choice of materials is determined according to media, pressure, and temperature conditions.

Special HTK Design

A special HTK design is available for extreme high temperature services (950 °C/ 1742 °F) such as expander turbine power recovery systems for catalytic crackers in refineries. The body and disc seal elements are robust and have an additional wear resisting hard facing. Quick closing/ opening

- tight shut-off and control with metal-to-metal seal
- triple offset design with inclined conical sealing system
- solid metal or laminated metal seal
- operation: manual, electric pneumatic, hydraulic

- excellent flow characteristics
- combination of different functions: flow control and shut-off
- particularly suited for high cycle operation

- optimum shut-off
- high temperature compatibility
- progressive sealing system
- reliable function in any position

- excellent flow characteristics
- combination of different functions: flow control and shut-off
- particularly suited for high cycle operation

Nominal Diameters:
100 mm / 4 inch to 4000 mm / 160 inch

Temperature Range:
-196°C / -320°F to 950°C / 1742°F

Pressure Class:
ANSI 150/300/600/900/1500/2500

- block & bleed design
- fast opening/closing function
- design for extremely high temperature applications
- seat hard-faced
- heating jacket

- steam purge at seat
- disc locking device, mansafe design
- spring-loaded stuffing box
- emission-free shaft sealing, complying with Clean Air Act 1990
- stuffing box design for inservice packing replacement
- butt weld and special end connections