The performance characteristics of double ram pneumatic valve

double ram plate brake pneumatic valve ( Stay open, upper beam) Basic principle:
when the brake pneumatic valve closing, ram down exactly, pneumatic valve lever to continue pushing the upper beam, make two pieces of open the gate, and press on the pneumatic valve seat sealing surface on both sides, to achieve forced sealing.
when the pneumatic valve opens, pneumatic valve rod with a first upper beam moving up, make the two piece of ram and pneumatic seat, then drives the ram rise, thereby the purpose of the flood.
double ram plate brake structure of pneumatic valve has the following characteristics:
. Pneumatic valve adopts two parallel to each other and wedge gate device composed of the sealing structure to replace the traditional pneumatic wedge gate valve structure.
。 Pneumatic valve sealing mechanism of each part from each other, even when the temperature changes cause deformation still can guarantee seal, and will not make the ram by high temperature expansion choke can't open it.
。 Pneumatic valve sealing adopts wear-resisting, corrosion resistant materials, prolong the service life of the pneumatic valve.
。 Under the condition of high temperature and high pressure, inlet side gate design for relief way, prevent due to temperature change of cavity pressure higher abnormal phenomenon, ensure use safety.
。 Fully closed structure and protective performance is good, can be all-weather use.
double ram plate brake pneumatic valve has good sealing, good security, long life, and many other advantages. The development level and to a certain height. On the market at present there are various types of pneumatic double ram plate gate valve, used in different areas, also have different structural features.
the most traditional of the structure of double ram plate pneumatic valve is sealed ( Not suitable for high pressure environment, gradually replaced) And tide open, open top and points on the wedge and the wedge.
the structure of double ram brake characteristics in each pneumatic valve, its cost, manufacturing process is also different, and each have advantages and disadvantages. Brake of the pneumatic valve design tend to be diversified, but also is to have rules to follow, double ram plate brake pneumatic valve currently on the market in general can be divided into two broad categories. Class is composed of two ram and wedge structure, both are relatively independent, complete sealing effect. Another kind is the combination of wedge and ram as a whole, by the gate itself as a wedge structure, extrusion and form the seal. In contrast, the second class structure has a better stability, because this structure under the condition of the same, parts is much less. Thus greatly improve the stability.
when the design should also consider the may encounter in the process of practical application situation, design a suitable structure according to different situations. The research of the pneumatic valve plate is mainly used in oil industry, it is necessary to design a safe and reliable, sealed performance is good, the strength of structure description of
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brake pneumatic valve: type of parallel double disc brake pneumatic valve can be used in the pipeline medium for water, sewage for CCTV equipment, pneumatic valve pneumatic double ram not

pneumatic double ram pneumatic valve
to allow to adjust flow and emptying of use. Widely used in petroleum, chemical, pharmaceutical, electric power industries. In the nominal pressure l or less. MPa of media such as steam, water, oil piping for opening and closing. Has a parallel double disc brake type pneumatic valve, pneumatic valve parallel type single disc brake, Ming parallel type double disc brake lever pneumatic valve, pneumatic valve stem parallel type single ram gate.

product features:
and when the system is working, gate in. Opening and closing at a constant speed m/min; State power system, such as accident shut down into fast and slow close two stages. - % opening for fast, time, S） 。 - The % opening is slow, time is ( S） 。 , as in the export of pump, check pneumatic valve is used, the pneumatic valve with pneumatic valve rod locking devices. To ensure safe operation. , ZT pneumatic valve selects the new electric brake device, can be in situ can also remote control operation, and can satisfy the requirement of computer program. Control accurate, safe and reliable.

how it works:
parallel double disc brake pneumatic valve is a kind of ceramic brake pneumatic valve. Therefore, its structure and working principle of the pneumatic valve and gate, the opening and closing body ( Pneumatic valve plate driven by pneumatic valve rod pneumatic valve seat sealing surface for lifting movement, can be connected or channels to cutting fluid. When pneumatic valve partially open, creates turbulence on the back of the disc, easy cause erosion and vibration of the gate, also easy to damage the pneumatic valve seat sealing surface, repair difficulties, usually applies to don't need to often open/close, and keep the gate full open or full close condition.
parallel double ram pneumatic valve working principle: by means of the cylinder or the handwheel provide outside power, pneumatic valve rod drives the pneumatic valve plate realize pneumatic valve open/close, move up and down in the process of the pneumatic valve opening and closing on set spring pre-tightening force between double ram is closely contact with pneumatic valve plate and valve seat, realize the seal.