Industry News
Aspects of the fixed dbb valve---11/3/2009
The characteristics of the fixed dbb valve
Automatic pressure relief feature: the valve body cavity to stay medium temperature anomalies caused by step-up, the do not pass through safety valve, while the feature alone can be automatic pressure relief valve seats, which ensure that the valve in the transportation safety of the liquid medium sex is very important.
Pairs of blocking and emission features: the fixed dbb valve seat using a floating spring preload, regardless of the valve is fully on or off state, on the downstream side of the seat so that fluid blocked valve stuck in the cavity material excreted through the discharge valve .
Structural fire safety: fire safety valves possess features, its design, manufacture were to follow API607 and API6FA specifications. Fixed dbb picture dbb valve fixed dbb valve Fixed chart image
The advantages of a fixed dbb valve
A reliable stem sealing and low operating torque: In addition to setting the standard sealing ring, the packing gland has also set up "O"-rings, double sealed to ensure the reliability of the valve stem seals; additional graphite packing and sealing grease to fire the valve stem into the leak to a minimum. Stem sliding bearings and thrust bearings so that the valve operation of the Light.
Note grease seal of emergency aid: As the medium of a foreign object or fire accidents caused by the valve seat seal failure, injection valve provided with grease gun greasing the fast connections, easily and quickly sealed grease is injected into the valve seat seal parts to ease the leak.
Flexible operation: Using a small friction coefficient and good self-lubrication of valve seats and valve stem bearings, greatly reducing the operation of the valve torque. Thus, even in the case did not provide sealing grease, it is also the long-term flexibility to operate freely against the valve.
Full Bore or reduced bore: according to the need to use the whole path or necking structure. Full Bore Valve flow aperture in line with the pipeline diameter, easy to clean pipelines.
Valve stem can be lengthened: According to the installation or operation of the necessary, can be extended to the valve stem. Plus long-rod valve is especially suitable for urban gas pipelines that require the laying of underground occasions. Long stem size according to customers need to be identified.
Automatic pressure relief feature: the valve body cavity to stay medium temperature anomalies caused by step-up, the do not pass through safety valve, while the feature alone can be automatic pressure relief valve seats, which ensure that the valve in the transportation safety of the liquid medium sex is very important.
Pairs of blocking and emission features: the fixed dbb valve seat using a floating spring preload, regardless of the valve is fully on or off state, on the downstream side of the seat so that fluid blocked valve stuck in the cavity material excreted through the discharge valve .
Structural fire safety: fire safety valves possess features, its design, manufacture were to follow API607 and API6FA specifications. Fixed dbb picture dbb valve fixed dbb valve Fixed chart image
The advantages of a fixed dbb valve
A reliable stem sealing and low operating torque: In addition to setting the standard sealing ring, the packing gland has also set up "O"-rings, double sealed to ensure the reliability of the valve stem seals; additional graphite packing and sealing grease to fire the valve stem into the leak to a minimum. Stem sliding bearings and thrust bearings so that the valve operation of the Light.
Note grease seal of emergency aid: As the medium of a foreign object or fire accidents caused by the valve seat seal failure, injection valve provided with grease gun greasing the fast connections, easily and quickly sealed grease is injected into the valve seat seal parts to ease the leak.
Flexible operation: Using a small friction coefficient and good self-lubrication of valve seats and valve stem bearings, greatly reducing the operation of the valve torque. Thus, even in the case did not provide sealing grease, it is also the long-term flexibility to operate freely against the valve.
Full Bore or reduced bore: according to the need to use the whole path or necking structure. Full Bore Valve flow aperture in line with the pipeline diameter, easy to clean pipelines.
Valve stem can be lengthened: According to the installation or operation of the necessary, can be extended to the valve stem. Plus long-rod valve is especially suitable for urban gas pipelines that require the laying of underground occasions. Long stem size according to customers need to be identified.
