The wafer manual adjustment of pneumatic valve purpose and classification

this butterfly butterfly plate installed on the diameter of the pipe of pneumatic valve. In the cylindrical channels of pneumatic valve pneumatic butterfly valve body and disc butterfly plate around the axis of rotation, rotation Angle for ° - Between °, rotate to °, the pneumatic valve is fully open.
wafer butterfly valve pneumatic valve has simple structure, small volume, light weight, only by a few parts. And simply rotate ° rapid opening and closing, simple operation, at the same time, the pneumatic valve has good flow control characteristics. Butterfly pneumatic valve in the fully open position
when the butterfly plate thickness is medium flows through the only pneumatic valve body resistance, and so by the pneumatic valve pressure drop is small, it has good flow control characteristics. Butterfly pneumatic valve seal and metal sealing machine has two sealing type. Elastic sealing pneumatic valve, sealing
circle to be set on the pneumatic valve body or attached to the butterfly plate peripheral.
use metal sealing pneumatic valve generally live longer than elastic sealing pneumatic valve, but it is hard to be completely sealed. Metal sealing can adapt high working temperature, elastic seal has the defect of being limited by the temperature.
if required control pneumatic valve used as flow control, mainly is the right choice of size and type of pneumatic valve. Adjusting the structure principle of pneumatic valve is especially suitable for production of large diameter pneumatic valves. Butterfly pneumatic valve not only in the oil, gas, chemical industry, water treatment and other general industrial on widely application,
but also applied to the cooling water system of thermal power plants.
the commonly used control pneumatic valve has the wafer butterfly valve and flanged butterfly pneumatic valve two kinds. Wafer butterfly valve pneumatic valve pneumatic valve is in the stud connection in place between two pipe flanges, the flange type butterfly is pneumatic valve pneumatic valves with flange, bolts connect pneumatic valve on both ends flanges in the pipeline method
on the LAN.
A, manual wafer butterfly valve pneumatic valve and brake performance of the pneumatic valve is
nominal pressure, nominal diameter of the same normal butterfly pneumatic pneumatic valve and gate valve which rigor is better, not easy to leak? Brake of the pneumatic valve closure than butterfly pneumatic valve is better, but there is also a manufacturer of pneumatic valve butterfly airtight good performance. Brake pneumatic valve product, and wide footprint
. Small butterfly pneumatic valve product, small footprint. Specific use, consider the temperature of medium, pneumatic valve sealing and packing. Rules of nominal diameter greater than with a dish of pneumatic valve.
is a national key new product manual wafer butterfly valve pneumatic valve, high-performance manual adjustment of the pneumatic valve USES a double eccentric and a special oblique elliptic cone sealing structure. Solve the traditional eccentric butterfly pneumatic valve in the opening and closing ° ~ ° seal face is still in the
sliding contact friction moment of ills, realize the butterfly plate in open the instant sealing surface, the separation, close contact with the sealing effect, achieve prolong service life, sealed performance is the best.
B, use the
used in sulphuric acid industry gas pipeline: before the furnace blower entrances, relay fan entrances and exits, pneumatic valve, electric mist series and unicom S main blower entrances and exits, converter, using gas preheater gateway such as adjusting and globe.
used in the sulphuric acid systems in burning sulfur, transformation, dry absorption section, is the first selection of sulphuric acid plant with pneumatic valve brand, is considered by the masses of users, sealed performance is good, work light, corrosion, high temperature resistant, convenient operation, flexible, use safe to
by the pneumatic butterfly valve, received a large number of promotion of use.
are widely used in: chemical, petrochemical, metallurgy, medicine, food and other industries SO, steam, air, gas, ammonia, CO gas, oil, water, salt water, alkali liquor, sea water, nitric acid, hydrochloric acid, sulfuric acid, phosphoric acid and other medium on the pipeline as a
adjustment and intercepting device is used.
C, structure features,
the unique design of three-way eccentricity between the sealing surface friction drive, prolong the service life of pneumatic valve.
(2) generated by the torque of the elastic seal.
3. Clever wedge design make the pneumatic valve has closed more and more tightly automatic sealing function of seal face between with compensatory, zero leakage.
4. Small volume, light weight, light operation and ease of installation.
(5) according to user requirements with pneumatic, electric devices, meet the needs of the remote control and programmed control.
6 replacement parts material can be applied to all kinds of medium, and can be carried out lining anticorrosion ( F, GXPP, PO, etc. ) 。
7) continuous structure diversification, clamp, flange, butt welding