Angle Type Globe Needle ValveÂ
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 The materials of main parts
|
Part name |
Body, Bonnet | Stem,Disc | Packing |
| J24W-160P-DN3 | Cr-Ni Stainless steel | Cr-Ni Stainless steel | PTFE,flexible graphite |
| J24W-320P-DN6 | High quality carbon steel | Cr-Ni Stainless steel | PTFE,flexible graphite |
Main performance and specification
|
Type |
Nominal Pressure(MPa) | Test pressure PS(MPa) | Working Pressure(MPa) | Working Temperature (ºC) | Applicable medium | ||
| Shell(MPa) | Sealing (liquid) | Sealing (gas) | |||||
| J24W-160P-DN3 | 16.0 | 24.0 | 17.6 | 0.6 | 16.0 | P≤540ºC | Petroleum gas Water,acid,Steam, Oil etc. |
| J24W-320P-DN6 | 32.0 | 48.0 | 35.2 | 0.6 | 32.0 | C≤425ºC | |
Main external and connection dimensions(mm)
|
Type |
Nominal diameter DN(mm) | Dimensions | Weight (Kg) | |||||
| L1 | Do | H | H1 | D | D1 | |||
| J24W-160P-DN3 | 3 | 80 | 65 | 159 | 168 | 14 | 3 | 1.0 |
| J24W-320P-DN6 | 6 | 80 | 65 | 159 | 168 | 14 | 6 | 1.0 |
 Selection principle
1, low temperature medium pipeline system and device, appropriate chooses combined with low temperature type needle valve bonnet.
2, refining unit of catalytic cracking unit of piping system, can choose lifting lever type needle valve.
3, chemical system in acid and alkali corrosive medium, such as equipment and piping system, appropriate chooses of austenitic stainless steel and ptfe seat sealing type stainless steel needle valve.
4, metallurgy system, power system, petrochemical plant,Urban heating systemIn the pipeline system of high temperature medium or device, can choose metal to metal seal type needle valve.
5, the need for flow control, can choose the worm gear and worm drive, pneumatic or electric type with v-shaped opening adjust needle valve.6, oil, natural gas transportation director line, need cleaning the pipeline, and to be buried in the ground, with full size, full welded structure type needle valve;Buried in the ground, choose the full size welded ball valve connection or flange connection.
7, product oil pipeline and storage equipment, choose the type needle valve with flange connection.
8, city gas and natural gas pipelines, selection of flange connection and female connection type needle valve.
9, metallurgy system oxygen in the pipeline system, appropriate chooses strict degreasing process, flange connection type needle valve.
Brief Introduction & Working Principle --Centrifugal Sifter
The screen holder is placed inside the machine. Bulk materials mixed with airflow and atomization pass the Screw Conveyor device, enter the screen holder. The undersize materials are sprayed through the screen cloth and discharged from the outlet under the action of centrifugal force and the cyclone propelling power, which caused by the blade inside the net tube. The oversize material, which can not cross the screen cloth, is discharged from the rough material outlet along the inside surface of the tube.
Cantilevered design and twin screen holder design are available.
Features
*Very smart but large capacity for light materials(such as starch,flour,lime powder,etc.)
*Mesh size should not be higher than 325 mesh
*No oversize end bearings or seals Hinged oversize end door.
*Easy to remove screen and screen retainer Hygienic design sifting screen.
*The sifter can be stripped down for cleaning without the need for specialist assistance.
*Full sealing makes this machine dust proof.
*No transmitted vibration.
*Easy to inspect and/or clean No tools required for screen, paddle and screw removal.
*Sanitary design and fast disassembly without tools
Air Flow Sifter,Air Flow Screening Machine,Air Jet Sieve,Air Jet Sieving Machine
XINXIANG CHENWEI MACHINERY CO.,LTD , https://www.sieves.nl