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Anonymous users2024-02-111) Remove the protective covers on both sides of the flange end and rinse and clean with the valve fully open. 2) Before installation, the whole machine should be tested according to the specified signal (electricity or gas) (to prevent vibration caused by transportation to affect the performance), and the online installation can be carried out only after passing the qualification (wiring according to the circuit diagram of the electric actuator). 3) Before preparing to connect with the pipe, rinse and remove any remaining impurities in the pipe (these substances may damage the valve seat and ball).
4) During installation, please do not use the actuator part of the valve as the lifting point to avoid damage to the actuator and accessories. 5) This type of valve should be installed in the horizontal or vertical direction of the pipeline. 6) The pipeline near the installation point should not be low hanging or bearing external force, and pipe brackets or supports can be used to eliminate the deviation of the pipeline.
7) ,... after connecting with the pipe
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Anonymous users2024-02-10The sealing of flange connection is to use a softer (relative to flange) gasket, which is deformed after compression, fills the uneven gap between the two sealing surfaces, prevents fluid from leaking, and achieves the purpose of sealing, therefore, the sealing of flange connection is achieved by the sealing surface, gasket and the compressive force that deforms the gasket The compression force is achieved by tightening the bolt.
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Anonymous users2024-02-09Listen to the sound of seals and discover the beauty of engineering. Welcome to Ma Zhigang Miaotong Seal. Flange gasket sealing is the most important type of static sealing in the process industry at detachable joints such as pressure vessels, process equipment, power machines and connecting pipes (as shown in the figure).
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Anonymous users2024-02-08The sealing principle of the flange connection is that the flange compresses the gasket between the sealing surfaces under the action of bolt preload. The pressure (compressive stress) applied to the unit area must reach a certain value in order for the gasket to deform and compact, and the sealing surface prevents the leakage of the medium through the capillary pores inside the gasket and the interface between the gasket and the sealing surface. This enables pre-sealing conditions.
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Anonymous users2024-02-07Raised surface, tongue and groove surface, full plane, concave and convex surface, ring connection surface, these kinds of sealing surfaces.
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Anonymous users2024-02-06There are 5 types of <> flange sealing surfaces, which are plane, protruding surface, concave and convex surface, tenon and groove surface, and ring connecting surface. 1. Flat: When the cover is flat, the structure is simple, easy to use, the contact area is large, and the sealing performance is relatively poor.
2. Raised surface: When the cover is a raised surface, the area is large, easy to move, and the sealing is relatively poor. 3. Concave and convex surface:
The concave and convex surfaces are used together, and the sealing performance is good. 4. Tongue and groove surface: two kinds of covers are used together, the sealing surface is narrow, the sealing performance is excellent, and it will not be corroded.
5. Ring connecting surface: the cover is a trapezoidal groove, which has superior performance compared with the concave and convex surface.
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