Customized Valves
Brand : Value
Model : Customized Valves
Last Update : 10:21:05 31/08/2017
Gear Box Control
Brand : Value
Model : Gear Box Control
Last Update : 10:16:27 31/08/2017
GATE VALVES
Brand : Value
Model : GATE VALVES
Specification: Size : 1/2?~48?(15mm~1200mm) Pressure Rating: ANSI 150LB~1500LB Material : Carbon Steel, Stainless Steel, and Duplex Stainless Steel.
Last Update : 10:10:43 31/08/2017
GLOBE VALVE
Brand : Value
Model : GLOBE VALVE
Specification: SIZE:1/2?~24?(15mm~1200mm) Pressure Rating: ANSI 150LB~1500LB Material: Carbon Steel, Stainless Steel, and Duplex Stainless Steel.
Last Update : 10:08:45 31/08/2017
Ball Valves
Brand : Value
Model : VF-BF Ball Valves
Specification: Size: 1/2?~12?(15 mm ~300mm) Temperature Range: -29?~210 ? (20?~410?) Pressure Rating: VF-BF1: ANSI 150LB, PN10/16/25? VF-BF3: ANSI 300LB, PN40
Last Update : 10:06:45 31/08/2017

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Product Information :

Product Name:  
GATE VALVES
Product Category:   ปิโตรเลี่ยมและแก๊ส
Product Sub-Category:   Gate Valves
Brand:   Value  
Product Type :  
Short Description :   Specification: Size : 1/2?~48?(15mm~1200mm) Pressure Rating: ANSI 150LB~1500LB Material : Carbon Steel, Stainless Steel, and Duplex Stainless Steel.
     
 

Feature:A gate valve, also known as a sluice valve, is a valve that opens by lifting a round or rectangular gate/wedge out of the path of the fluid. The distinct feature of a gate valve is the sealing surfaces between the gate and seats are planar, so gate valves are often used when a straight-line flow of fluid and minimum restriction is desired. The gate faces can form a wedge shape or they can be parallel. Gate valves are primarily used to permit or prevent the flow of liquids, but typical gate valves shouldn't be used for regulating flow, unless they are specifically designed for that purpose. Because of their ability to cut through liquids, gate valves are often used in the petroleum industry. For extremely thick fluids, a specialty valve often known as a knife valve is used to cut through the liquid.On opening the gate valve, the flow path is enlarged in a highly nonlinear manner with respect to percent of opening. This means that flow rate does not change evenly with stem travel. Also, a partially open gate disk tends to vibrate from the fluid flow. Most of the flow change occurs near shutoff with a relatively high fluid velocity causing disk and seat wear and eventual leakage if used to regulate flow. Typical gate valves are designed to be fully opened or closed.[2] When fully open, the typical gate valve has no obstruction in the flow path, resulting in very low friction loss.
 

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