With the increase of the world's environmental awareness, people have become increasingly demanding on the sealing of the valve, especially nuclear equipment, petroleum and chemical industry and other special occasions, the valve leakage requirements low, so all the countries in the development of metal bellows, and applied in the field of valves. HANGONG is a pioneer in the application of bellows in the valve field.
The main function of metal bellows is to realize the functions of measurement, connection, conversion, compensation, sealing and vibration reduction.
HANGONG B series bellows valve, mainly used in low pressure, leakage of zero (under certain pressure) in the case. The main materials of the valve body include stainless steel, brass, tantalum niobium alloy, alloy 400 and so on for customer selection.
HANGONG 9B series bellows valve, involved in the packing seal, which bear the pressure up to 2500psi (172bar), mainly for high pressure, leakage of zero (under certain pressure) of the design. The main materials of the valve body include stainless steel, brass, tantalum niobium alloy, alloy 400 and so on for customer selection.
Product features
Ø  Tantalum and niobium alloy core can be provided by ferrule valve
Ø  Technology of tantalum niobium alloy / coating provided by valve core
Ø  Panel mounting
Ø  100% through factory test
Ø  Working modes include rotation and lifting
Ø  Can provide ball spool and spool and spool seat adjustment
Ø  Multiple interface connections

Specification size

HANGONG Needle valve.pdf