Valve
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DESIGN FEATURE
Valve designed as straight-through piston valve, pressure-relieved. Inline and stem sealing by two flexible valve ring made from special material, Body made of Cast steel
/ Stainless steel, Bonnet made of Cast steel / Stainless steel, Handwheel made of grey cast iron/Cast steel, and Piston Consisting of corrosion resistant steel.
ADVANTAGE
- Exceptional leak tightness across the ports and to atmosphere.
- Environmentally safe and energy efficient.
Long time Maintenance Free, no wear on sealing surfaces. - Insensitive to impurities due to maintenance free sealing system.
- High Return on Investment across full service life compared to Globe Valves.
- Valve rings are replaceable in the line.
- Excellent control statistics.
RING MATERIAL
The valve rings are made of specially material. They have no asbestos containing materials and make the valve maintenance free. “Install and Forget” is the motto. The coupling pressure on the piston is so high that media are reliable checked
up to 900 psi in any aggregate condition and at temperatures ranging from -50′ F to + 800′ F. The various expansion coefficients of the valve components which arise
during alternating thermal loads are fully compensated by the ring. Reliably tight in all operating states. The bonnet presses against the lower component with the sealing element.
The two rings are pre-sealed and increase their coupling pressure on the casing and piston.
EXTRAORDINARY SEALING SYSTEM
Valve designed as straight-through piston valve, pressure-relieved. Inline and stem sealing by two flexible valve ring made from special material, Body made of Cast steel / Stainless steel, Bonnet made of Cast steel / Stainless steel, Handwheel made of
grey cast iron/Cast steel, and Piston Consisting of corrosion resistant steel.
EXCELLENT CONTROL
CHARACTERISTICS
The double guidance of the piston in closed position prevent fluttering and vibration in the control setting, and oscillations in the tube.
THE VALVE STAYS IN THE LINE WHILE
CHANGING THE VALVE
After the first commissioning the valve is absolutely maintenance free for a long time. In case used-up valve rings have to be changes, this is very easily done, The valve does not have to dismounted.
