API Pressure-Seal Globe Valve Description
API Pressure-Seal Globe Valve is a type of valve used to control fluid flow, primarily designed for high-pressure pipeline systems. It typically consists of components such as the valve body, bonnet, stem, seat, and sealing mechanism.
The main function of a pressure-seal globe valve is to shut off fluid flow by rotating the stem, causing the sealing surfaces between the seat and the bonnet to engage, thus closing the valve. When opening the valve, the stem is rotated to separate the sealing surfaces, allowing fluid to pass through.
Widely used in high-pressure pipeline systems across industries such as petroleum, chemical, power, and metallurgy, this valve can be employed to either shut off or regulate fluid flow, ensuring the safe and reliable operation of pipeline systems.
Advantages of API Pressure-Seal Globe Valves
a. Simpler Structure: Compared to gate valves, Pressure Seal globe valves typically have only one sealing surface on the valve body and disc, resulting in smaller sealing area, reduced consumption of expensive materials, lower cost, and better manufacturability, facilitating maintenance.
b. Reduced Wear: The sealing surfaces experience minimal wear and abrasion. During operation, the disc and valve body sealing surfaces (except conical types) do not slide relative to each other, ensuring long lifespan and excellent sealing performance.
c. Compact Design: The opening height is small, usually only 1/4 of the seat passage diameter, saving installation space.
Disadvantages of API Pressure-Seal Globe Valves
a. Longer Structural Length
b. High Operating Torque: Closing requires overcoming medium pressure, making operation labor-intensive.
c. High Flow Resistance: The tortuous flow path increases resistance, leading to significant energy loss, especially in hydraulic systems. Pressure Seal Globe valves have the highest flow resistance among shut-off valves.
d. Directional Flow Restriction: Medium can only flow unidirectionally (bottom-up or top-down) through the seat passage.
e. Particle Trapping Risk: Solid particles in the medium may get trapped between sealing surfaces during closure.
f. Installation Complexity
Products Specification
|
item |
valve |
|
Application |
Industrial Usage,Water Industrial Usage,Household Usage |
|
Port Size |
DN10-DN2000 |
|
Warranty |
24 month |
|
Place of Origin |
China |
|
Henan |
|
|
Power |
Manual,Electric |
|
Temperature of Media |
High Temperature, Low Temperature, Medium Temperature, Normal Temperature |
|
Media |
Oil, Water, Steam,Gas,Chemical |
|
Customized support |
OEM, ODM, OBM |
|
Delivery Time |
7-15 Days |
|
Body Material |
Ductile Iron/Wcb/Stainless Steel |
|
Seal Material |
NBR/EPDM/PTFE/Viton/Silicone etc |
|
Coating |
Customized |
|
Bolt |
Forged Steel |
|
Opeartion |
Hand Wheel, Worm Wheel, Pneumatic Actuator & Electric |
|
End Connection |
Flanged FF, RF, Rtj, Bw Ends |
|
Allen Bolts |
Carbonization Process |
API Pressure Seal Globe Valves for sale
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