NISAN Scientific Process Equipments

Range Filtration

Duplex Strainer

Removes Large Particle Impurities in Pipeline Systems

Duplex strainers support continuous operation by diverting flow through another strainer when one becomes blocked, allowing the blocked strainer to be cleaned. Carbon steel and stainless steel bodies are available, with standard flanged off line connections and inline strainers on request.

Design features

  • Can be installed in horizontal pipelines.
  • Drain connections are standard and are furnished with plug.
  • Perforated screen with 20 Mesh linings are standard.
  • Vent valve can be provided with valve on request.
  • Strainer with Sight Flow Indicator shall be done for hazardous applications like Hydrocarbon./ Acid.etc.,
  • Tomeet high temperature and high pressure with suitable MOC and Sealing parts.
  • Free straining are 4 times of pipe cross section are standard.
Fig. 01 · duplex-strainer Interactive

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Duplex Strainer, studio render Duplex Strainer, view 1Duplex Strainer, view 2

Augmented reality

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Open this on a phone and tap the button. The part appears at true size in the room in front of you. Tap a label to read the parts. Nothing to install.

8 inch (200 NB) View in your space

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8 inch (200 NB) · Class 150

Tap a label on the model. The screen is inside the leg; turn on See inside to look at it.

True size, 689 x 791 x 589 mm. Representative geometry, not a CAD drawing.

Technical specification

Build and limits

Taken from our published product data. Confirm against your line specification before ordering.

Housing material
Carbon steel, Stainless steel in various grades, - Other materials and coatings available on request
Filter Element
Carbon steel, Stainless steel in various grades - Other materials available on request.
End connection
Flanged (As per requested Table.), Threaded (NPT or BSP)
Sizes
Sizes are available from 1" Line size to24" Line size. Other sizes available on request
Filtration rating
Filtration rating available from 1 micron to 1000 microns
Pressure rating
Up to 1000 PSI. High-pressure ratings available on request
Free straining area, description
Free straining area is minimum 6 times pipe CS area.
Applications
Pump protection; Boiler Feed water filtrations; Valve and regulator protection; Protection of heat exchanger and refrigerating set; Instrumentation and ancillary piping item protection; Protection of steam traps

Independent testing

Tested by government laboratories

These reports cover our strainers. They were produced by outside laboratories, not by us.

NSTL

270 g

peak acceleration, half-sine, 3.3 ms

Naval shock qualification

Certificate (PDF)

CWPRS

0.0183

kg/cm² head loss at 493 m³/hr, clean

Pressure-drop test, gas-turbine plant duty

Certificate (PDF)

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