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Domů>Produkty>Příslušenství pro vrtání do studní>Obrazovky typu Johnson

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Nerezová klínová síta Johnson typu Wedge pro vrtání do studní


  • Technické parametry
  • Technické parametry

Hlavní technické vlastnosti

The Stainless Steel Wedge Wire Continuous Slot Well Screen(Johnson Type Screens) consist of

V-shape profile wire and the longitudinal support rods. Each intersecting point of these wires is

fusion welded.

Johnson type screen stainless steel mesh filters has sturdy constriction and the good mechanical

property. The V-shape section plane can avoid the blockage and make sure of the unimpeded

water. The consecutive slot have more open area, and it can reduce the speed of water entering

to avoid the sand entering Johnson type screens under the great pressure, so it can filter sand

better. Meanwhile, the slots of Johnson type screen can change according to the real condition

of the stratum.

Wire and support rods are all-welded, which makes wedge wire screens more robust and longer

život.

Specifications and end connections of Johnson type screens can be fabricated according to

customers’ requirements.

Inspection of Johnson Type Screens

1. All Dimensions of Johnson type screen / wedge wire screen will be checked by our quality

inspector, and they also can be inspected by Third Party Inspections or representative appointed

kupujícím.

2. Wall thickness of coupling material is inspected by Ultrasonic inspection method, and they also be made the Ultrasonic flaw detection

3. Do Destructive Collapse Test and collapse Strength Test before shipment.

4. If required, the screens will be made pickling and passivation.

5. The whole manufacturing process can be monitored by Third Party Inspection Company (BV,

SGS, Intertek )and representative appointed by buyer.

6. The screens will be arranged the Pre-shipment Inspection if required.

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VELIKOST OD SLOTSIZE DÉLKA COLLAPSE STRENGTH TENSILE WEIGHT(TON) RODS
(PALEC) (PALEC) (MM) (M) (PSI)
4
117
0.04 3
395 6
3.8MM / 22
4
114.3
0.04 3
395 6
3.8MM / 22
6
168.3
0.04 3
252 8
3.8MM / 22
8
219.1 0.01 3
399 10.5
3.8MM / 48
8
219.1 0.02 3
370 10.5
3.8MM / 48
8
219.1 0.04 3
323 10.5
3.8MM / 48
10
273.1 0.01 3
206 11
3.8MM / 50
10
273.1 0.02 3
191 11
3.8MM / 50
10
273.1 0.04 3
167 11
3.8MM / 50


Slot Size (mm): or as per customers’ requirement
Materiál: carbon steel, stainless steel (304, 316L etc.)
Délka jednotky až 6 m.
Průměr od 25mm do 1200mm
Otevřená oblast až 60%
Ukončit připojení: beveled or thread coupling


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