GQ - La vanne à bloc sphérique à voie sans usure, avec sa structure unique, adopte une nouvelle conception technologique d'ouverture de séparation par rotation du noyau de vanne et d'étanchéité mécanique sous pression. Ses avantages les plus importants sont que la surface d'étanchéité ne produit pas de friction, une longue durée de vie, un faible couple de fonctionnement et même si le milieu contient des particules solides, du sable, des fibres courtes et d'autres impuretés, et que le milieu fluide est à grande vitesse et concentré pour laver le corps d'étanchéité et d'autres conditions de travail difficiles, il peut maintenir une bonne étanchéité, garantissant un fonctionnement sûr et fiable pendant la période de maintenance des équipements d'ingénierie.
N ° d\'article.:
XUVAL88-506De Temps:
30 DaysProduit D\'Origine:
CHINAMarque:
XUVALFrais De Port De Port:
Shang haiPaiement:
100%TTCouleur:
YellowMOQ:
1Forced sealing ball valve
GQ Non Wear Rail Spherical Block Valve replaces traditional block valves such as gate valves, globe valves, ball valves, and plug valves, and is widely used in industries such as petroleum, natural gas, chemical, pulp and paper, power plants, steel mills, and environmental wastewater treatment. The main components such as valve body, valve cover, valve stem, cam, valve core, and sealing pair can meet various working conditions by selecting different material groups. It can also be designed and manufactured according to the working conditions such as fluid medium, pressure, temperature, and connection size provided by the owner.
-No wear on the switch:
After the ball core deviates from the valve seat, it rotates again to eliminate the friction of the valve seat, solving the problem of valve seat wear in traditional ball valves, gate valves, and plug valves.
-Hard sealing surface of wear-resistant valve core:
The surface of the ball core is welded with a hard polished sealing surface, which can ensure sealing performance under very harsh working conditions.
-Top mounted design:
After the system is depressurized, online inspection and maintenance can be carried out to simplify maintenance.
-Low torque operation:
It can be equipped with a small handwheel (except for extra large diameters) and does not require a gearbox. Because the sealing surface of the spherical cut-off valve is frictionless, it is particularly easy to rotate, which means that an economical driving device can be used while ensuring sufficient driving force to open and close the valve.
-Best flow characteristics:
Both full bore and standard bore have high Cv values, enhancing the system efficiency of the pump. And minimize the problem of abrasion.
-Double valve stem guide pin:
The hard valve stem guide groove and guide pin control the lifting and rotation of the valve stem.
-Easy to clean:
When the ball core tilts away from the valve seat, the fluid will flush out any debris in the sealing area 360 degrees along the sealing surface.
-Mechanical wedge seal:
The cam slope at the lower end of the valve stem provides a mechanical wedge force to ensure sufficient sealing pressure.
-Long lifespan:
Spherical cutoff valves will replace ball valves, gate valves, globe valves, and plug valves that are prone to malfunctions. The unique performance of its valve will reduce device shutdown and lower the cost for the owner.
Performance specifications:
Nominal pressure
MPa/Lb
|
Strength test | Hydraulic sealing test | Air pressure sealing test | Material |
Operation temperature
℃
|
Applicable Medium |
1.60-25.0MPa
150~1500Lb
|
1.50 times | 1.10x | 0.60MPa | Acier au carbone C | -29-425 |
Eau, cristaux d'huile, gaz, alcanes
Hydrocarbures et milieux impurs
|
Ouvrier en acier allié | -29-520 | |||||
P/R en acier inoxydable | -196-600 | |||||
Acier basse température F | -46-425 |
Principales dimensions hors tout :
DN
(mm)
|
Style structurel | Dimensions extérieures | Taille de connexion à bride | Boulon à double tête | |||||||||
L | H | h | W | D | D1 | D2 | T | F | sd | Nombre | Fil | ||
GQ47HY-100DN25-150;GQ547HY-100DN200-400 | |||||||||||||
25 | UN | 230 | 345 | 315 | 200 | 135 | 100 | 58 | 50 | 2 | 4-18 | 4 | M16 |
40 | UN | 260 | 385 | 350 | 250 | 165 | 125 | 76 | 75 | 3 | 4-23 | 4 | M20 |
50 | UN | 300 | 410 | 370 | 250 | 195 | 145 | 88 | 85 | 3 | 4-25 | 4 | M22 |
65 | UN | 340 | 435 | 395 | 300 | 220 | 170 | 110 | 110 | 3 | 8-2 | 8 | M22 |
80 | UN | 380 | 525 | 400 | 300 | 230 | 180 | 121 | 115 | 3 | 8-255 | 8 | M22 |
100 | B | 430 | 605 | 550 | 350 | 265 | 210 | 150 | 145 | 3 | 8h-30 | 8 | M27 |
150 | B | 550 | 720 | 780 | 400 | 350 | 290 | 204 | 200 | 3 | 12-34 | 12 | M30 |
200 | B | 650 | 910 | 830 | 500 | 430 | 360 | 260 | 265 | 3 | 12-41 | 12 | M36 |
250 | C | 775 | 1060 | 960 | 550 | 500 | 430 | 313 | 320 | 3 | 12-41 | 12 | M36 |
300 | C | 900 | 1250 | 1140 | 600 | 585 | 500 | 364 | 375 | 4 | 16-48 | 16 | M42 |
350 | C | 1025 | 1440 | 1330 | 600 | 655 | 560 | 422 | 420 | 4 | 16-54 | 16 | M48 |
400 | C | 1150 | 1620 | 1500 | 700 | 715 | 620 | 474 | 480 | 4 | 16-54 | 16 | M48 |
Précédente :
Robinet à tournant sphérique électrique Q947prochaine :
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