Gold Member Since 2016
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Saiptech Co., Ltd.

Valve Tray, V1 Tray, Float Valve manufacturer / supplier in China, offering Sieve Tray with High Capacity and Lower Cost, Hardwares for Site Maintenance and Spare Parts, Hump Support and so on.

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Sieve Tray with High Capacity and Lower Cost

FOB Price: Get Latest Price
Min. Order: 1 Piece
Port: Shanghai, China
Production Capacity: 100 Tons Per Month
Payment Terms: L/C, T/T

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Basic Info
  • Model NO.: Sieve Tray
  • Material: Stainless Steel
  • Trademark: SPT
  • HS Code: 84199090
  • Manufacturing Process: CNC Milling
  • Type: Distillation Equipment
  • Origin: China
Product Description
Saiptech's Sieve Trays
Sieve Tray with High Capacity and Lower Cost

Sieve trays became a dominate tower internal for mass transfer columns in the 1950's owing to their simple shape and ease of manufacture. This made sieve trays a popular device for extensive research and as a result, a considerable amount of experience has been gained for tray design and its application. Sieve trays are flat perforated plates in which vapour is forced through the holes into the cross flowing liquid. Vapour flow prevents liquid from leaking (weeping) through the holes. At low vapour velocities, liquid weeping through the holes occurs, which bypasses a portion of the tray active area and reduces efficiency, giving sieve trays relatively low turndown (approx. 2-2.5:1).
Saiptech has the capability to design and manufacture virtually any type of sieve tray. Tray hole sizes down to 3.2 mm and up to 16 mm in diameter are offered
.Sieve Tray with High Capacity and Lower Cost
Comparison of Common Conventional Tray
TRAY TYPE BUBBLE CAP DUALFLOW SIEVE VALVE 
Capacity Moderate Very High High High to very high 
Pressure DropHigh Low to ModerateLow to ModerateModerate.Older designs were somewhat higher.Recent designs same as sieve trays. 
Efficiency Moderate (0.6 - 0.8)Lower compared to others (0.5 - 0.7)High (0.7 - 0.9)High (0.7 - 0.9)
Turndown Very high Can handle very Can handle very low liquid rates Low. Not suitable for suitable for varying loads Approx. 2:1. Unsuitable for Unsuitable for varying loads operation Approx. 3-5:1 Higher turndown Higher turndown designs can be provided on request. 
Maintenance Relatively high Low Low Low to moderate 
Fouling Tendency High. Tends to accummulate solid particlesExtremely low. Best choice for Severe foulingLow Low to moderate 
Main Application Very low flow conditions where leakage needs to be minimizedCapacity revamps where efficiensy and turndown not critical high fouling and corrosive serviesMost columns where trundown not importantMost Columns services where turndown important
Cost High -approx 2~3 times that for sieve traysLow Low Marginally higher than sieve trays
 
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