Secundum diversas fabrica figuras portae Valvulae, porta valvulae potest dividitur in duo genera: cunge type et parallelae genus.
The gate plate of the wedge gate valve is wedge-shaped, and the sealing surface is inclined to the center line of the channel, and the wedge between the gate plate and the valve seat is used to achieve sealing (closing). Cuneus laminam potest esse aut porta aut duplex porta.
According to the different movement of the valve stem when the gate is opened and closed, gate valves are divided into two categories: rising stem gate valves and concealed stem gate valves. Civile derivantur et porta ortu stem portam valvae oriri et cadunt simul cum aperto vel claudendo; when the concealed stem gate valve is opened or closed, the valve stem only rotates, and the rise and fall of the valve stem cannot be seen, and the valve plate rises or falls. The advantage of the rising stem gate valve is that the channel opening height can be judged by the rising height of the valve stem, but the occupied height can be shortened. Cum adversus handwheel et tractamus, turn Handwheel et tractamus clockwise claudere valvae.
II. Occasiones et Selectionem Principia ad portam Valvulae
I. Flat portam CYMBALON
Occasiones enim plana porta Valvulae:
(I) oleum et naturalis Gas pipelines. Plana porta valvulae cum distinguuntur foramina sunt etiam commodum Purgato Pangelines.
(II) pipelines et repono apparatu ad excociendum oleum.
(III) oleum et naturalis Gas productio decursibus.
(IV) Pipelines cum suspensus particula media.
(V) urbs Gas Transmissus Pipelines.
(VI) aquae copia projects.
Electio principle plana porta CYMBALON:
(I) et oleum et naturalis Gas Transmissus pipelines, laminam portam valvulae cum uno vel duplici portas delecti. Si opus ad mundare Pipeline, eligere aperta-virga plana porta valvae cum uno arietis et diversa foraminis.
(IV) Pipelines cum suspensus particula media, ferro-informibus plana porta valvulae electus.
(V) pro Urbana Gas Transmissus Pipelines, una porta vel duplex porta laminam mollis sigillum aperta rod plana porta valvae delectus.
(VI) pro aqua copia projects, una porta vel duplex porta valvae absque distinguitur foraminis aperta virgam plana porta valvae delectus.
II. Cunge Porta CYMBALON
Wedge gate valves are generally used in places where there are no strict requirements for the external dimensions of the valve, and the use conditions are more harsh. Exempli gratia, et opus medium summus temperatus et princeps pressura requirit claudendo partes ut signari diu.
Electio principle:
(I) Requirements ad fluidum est de valvae. Gate valves are selected for the working conditions with small flow resistance, strong flow capacity, good flow characteristics and strict sealing requirements.
(II) summus temperatus et summus pressura medium. Ut summus pressura vapor, summus temperatus et summus pressura oleum.
(III) humilis temperatus (cryogen) medium. Ut liquor Ammonia, liquid hydrogenii, liquid oxygeni et alia media.
(IV) humilis pressura et magna diameter. Ut ICTUS aquae projects, purgamentos curatio projects.
(V) urbs Gas Transmissus Pipelines.
(VI) aquae copia projects.
Electio principle plana porta CYMBALON:
(I) et oleum et naturalis Gas Transmissus pipelines, laminam portam valvulae cum uno vel duplici portas delecti. Si opus ad mundare Pipeline, eligere aperta-virga plana porta valvae cum uno arietis et diversa foraminis.
(IV) Pipelines cum suspensus particula media, ferro-informibus plana porta valvulae electus.
(V) pro Urbana Gas Transmissus Pipelines, una porta vel duplex porta laminam mollis sigillum aperta rod plana porta valvae delectus.
(VI) pro aqua copia projects, una porta vel duplex porta valvae absque distinguitur foraminis aperta virgam plana porta valvae delectus.
II. Cunge Porta CYMBALON
Wedge gate valves are generally used in places where there are no strict requirements for the external dimensions of the valve, and the use conditions are more harsh. Exempli gratia, et opus medium summus temperatus et princeps pressura requirit claudendo partes ut signari diu.
Electio principle:
(I) Requirements ad fluidum est de valvae. Gate valves are selected for the working conditions with small flow resistance, strong flow capacity, good flow characteristics and strict sealing requirements.
(II) summus temperatus et summus pressura medium. Ut summus pressura vapor, summus temperatus et summus pressura oleum.
(III) humilis temperatus (cryogen) medium. Ut liquor Ammonia, liquid hydrogenii, liquid oxygeni et alia media.
(IV) humilis pressura et magna diameter. Ut ICTUS aquae projects, purgamentos curatio projects.
(V) Installation Location: Cum Installation altitudo est limited, in tenebris virga Cuneum portam CYMBALON est electus; Cum altitudo non limitatur, aperto virga cuneum cuneum valvae delectus.
(VI) nisi cum possit esse plene aperta vel plene clausi, et non potest esse ad temperatio et throttling, cunge ostium valvae potest electus.
III. Communis vitia et sustentacionem
I. Communis vitia et causas portae Valvulae
(I) Leakage: Sunt duo genera, nimirum externum Leakage et internum lacus. Leakagium ad extra valvae dicitur lacus, et Leakage commune in spissamento boxes et lecta hospites.
Ratio ad leakage de spissamento arca archa varietate vel qualitas stipare non occurrit requisita; Senescit sarcina aut caule gerunt; Solvitur stipare glandem abrasion super caule superficiem.
Et ratio ad leakage de LABYNGE nexum: et materiam vel magnitudinem de gasket non occurrit requisita; Pauper dispensando qualis ex Labge signatio superficiem; Impropria tensis de connectens fulmina; Et non proprie figuram, unde nimia additional onerat ad articulos.
(I) corrosio saepe causatur per corrosio signantes superficies valvae corporis, valvae operculum, valvae derivantur et LABIUM. Corrosio est maxime ex actum est medium, sed etiam effectus de releasing ions de filler et gasket.
II. Sustentationemporta valvulae
(I) Repair Externi Leakage de CYMBALON
Cum urgeat stipare in glandulae fulmine symmetrically applicari vitare glandem tilting relinquere gap ad compressionem. At the same time as pressing the packing, the valve stem should be rotated to make the packing around the valve stem uniform, and prevent the pressure from being too dead, so as not to affect the rotation of the valve stem, increase the wear of the packing, and shorten the service life. The surface of the valve stem is abrasive, so that the medium is easy to leak out, and it should be processed to eliminate the scars on the surface of the valve stem before use.
Nam leunca ultrices nexu, si gasket est laedi, debet reponi; Si materia gasket non lectus proprie materiam quae requisita uti debet; If the processing quality of the flange sealing surface is poor, the flange sealing surface must be removed and reprocessed until it is qualified.
(II) Repair Leakage intra valvae
The repair of internal leaks is to eliminate damage to the sealing surface and loose sealing at the root (when the sealing ring is pressed into the valve plate or seat with a thread). Si signa superficiem directe processionaliter in valvae corporis et valvae laminam, ibi est dubium de solutam radix et leakage.
When the sealing surface is seriously damaged, and the sealing surface is formed by the sealing ring, the old ring should be removed and a new sealing ring should be equipped; If the sealing surface is machined directly on the valve body, the damaged sealing surface should be removed first, and then the new sealing ring or machined surface should be ground into a new sealing surface. Cum scalpit, bumps, opprimit, dents et aliis defectibus signantes superficiem sunt minus quam 0.05mm, possunt eliminated a.
When the seal ring is pressed-in and fixed, PTFE tape or white thick paint can be placed at the bottom of the valve seat or seal ring groove, and then pressed into the seal to make the root of the seal ring be filled; Cum sigillum est fila, ptfe tape aut albis pingere debet inter se relatorum ne fluidi stillante inter se relatorum.
(III) Repairvaleocorrosio
In generali, in valvae corpus et Bonnet et uniformiter corroded, dum valvae derivantur saepe pistis. When repairing, the corrosion products should be removed first, and the valve stem with pitting pits should be processed on the lathe to eliminate the depression, and the packing containing a slow-release agent should be used instead, or the packing should be cleaned with distilled water to remove the ions that have a corrosive effect on the valve stem in the packing.
(IV) instaurabo abrasione in signing superficies
In usumvaleoEt signa superficies impediri ab abrasione quantum fieri potest, et torque non esse magna cum valvae clausum. Si signa superficies abrasive, potest esse eliminated a molere.
Quarto, deprehensio porta Valvulae
In current foro environment et user necessitates, ferrum portam valvulae propter magnam. As a product quality inspector, in addition to being familiar with the inspection of product quality, we must also have a good understanding of the product itself.
I. Testis ex ferro portam Valvulae
Testis ferrum porta valvae fundatur in National Standard GB / T12232-2005 "General CYMBALE LABLE nexu ferrum portam valvae".
II. Inspectionem items of ferrum portam Valvulae
Tianjin Tanggu aqua, sigillum CYMBALON Co., LTDMaxime producendum mollis sedentempapilio valvum,Porta CYMBALON,Y-stridentis, Balancing valvae, reprehendo valvae, balancing valvae, retro fluxus preventer etc.
Post tempus: Dec-26-2024
