1.Introduktion af fast kugleventil i rustfrit stål
Sammenlignet med den flydende kugleventil overføres kraften, der frembringes af væsketrykket foran ventilen på kuglen, til lejet, så kuglen bevæger sig ikke til ventilsædet, så ventilsædet ikke bærer for meget tryk ;
Desuden har den faste kugleventil i rustfrit stål lille drejningsmoment, lille deformation af ventilsædet, stabil tætningsevne og lang levetid, hvilket er velegnet til applikationer med højt tryk og stor diameter.
2. Specifikke parametre forFast kugleventil i rustfrit stål
produktnavn |
Fast kugleventil i rustfrit stål |
||
DN |
DN50~DN1200 |
Forbindelsestype |
Flanget |
PN(MPaï¼ |
1.6Mpa~42.0Mpa |
Aktuatortype |
brugervejledning drev, pneumatisk, hydraulisk eller elektrisk aktuator |
Design temperaturområde |
-20~ + 100â „ƒï½ž + 450â„ ƒ |
Standard |
GBã € DINã € APIã € ANSI |
Legeme |
RustfriStål |
Gældende medium |
Vand, olie, gas og forskellige korrosionsmedier |
3.Funktioner afFast kugleventil i rustfrit stål
1) Rustfri steel fixed ball valve has two-piece and three piece valve body structures. The middle flange is connected by bolts, and the seal is made of reinforced polytetrafluoroethylene inlaid into the stainless steel ring. There is no spring at the back of the steel ring to ensure that the valve seat is close to the ball and keep the seal.
2) There is no PTFE bearing on the upper and lower valve stems of the Rustfri steel fixed ball valve, which reduces friction and saves labor. There is no adjusting plate at the bottom of the small shaft to ensure the joint position between the ball and the sealing ring. Full bore design for pipeline cleaning.
3) Rustfri steel fixed ball valve automatic pressure relief function: when the stagnant medium pressure in the valve cavity rises abnormally and exceeds the preload of the spring, the valve seat will retreat from the ball to achieve the effect of automatic pressure relief, and the valve seat will reset automatically after pressure relief.
4) Rustfri steel fixed ball valvedrain pipeline: the drain valve L is set up above and below the valve body to check whether the valve seat leaks. During operation, when the valve is fully open or closed, the pressure in the middle chamber can be removed and the packing can be directly replaced; Can be discharged in the cavity retention, reduce the pollution of the medium to the valve. Auxiliary seal setting system;
4. teknisk specifikationaf Fast kugleventil i rustfrit stål
Designgrundlag |
National standard |
Amerikansk standard |
||
Design kriterier |
GB / T12237 |
AP16D |
ANSI B16.34 |
|
Længden af flangeforbindelsesstrukturen |
GB / T12221 |
AP16D |
ANSI B16.10 |
|
Strukturlængde (svejsning) |
GB / T15188.1 |
AP16D |
ANSI B16.10 |
|
Tilslutningsflange |
GB / T9113 |
ANSI B16.5ã € B16.47 |
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JB / T79 HG20592 |
||||
Buttenden |
GB / T12224 |
ANSI B16.25 |
||
Test og inspektion |
GB / T9092 |
AP16D |
AP1598 |
5. anvendelse af Fast kugleventil i rustfrit stål
Rustfri steel fixed ball valve is widely used to cut off or circulate the medium in the transportation pipeline of food, medicine, petroleum, chemical industry, natural gas, steel, environmental protection, papermaking, etc.
6. om MST
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