Duplex Cartridge Filtration Unit

The Duplex cartridge filter unit is the most commonly used cartridge filter unit in the oilfield industry.

This offshore proof, skid-mounted filter unit is equipped with all necessary valves and safety features.

The Duplex offers the most cost effective way to clean-up all possible oilfield fluids. It allows you to simultaneously filter with one vessel, and easily change out the used cartridges of the other vessel.

System Design Features

  • Standard serial/ parallel configuration
  • Standard TDW 610 serial: 50 cartridges per vessel
  • Compact space saving design
  • Innovative easy push lever and easy to handle swing-away vessel lid
  • Swing-bolts and nuts for quick opening
  • Self sealing, service friendly cover gasket
  • All 4 inch valves easy to operate from the front
  • Certified hoisting slings and forklift pockets
  • Safety valve set at 7 bar (105 Psi)
  • Robust offshore frame

Applications

  • Completion fluids
  • Water injection
  • Produced water
  • Seawater intake
  • Oily water clean up
  • Diesel
  • Pre-filtration RO

Filter Unit Range

  • TDW 610-50/40 (standard)
  • TDW 610-50/40-S (single)
  • TDW 510-30/40 (standard)
  • TDW 510-30/40-S (single)
  • Other types on request

Technical Specifications

Number ofCartridges per Vessel
50 cartridges

Max. Recommended Flow
12.6 bbl/min (120 m3/hr)

Maximum Working Pressure
7 bar (105 Psi)

Maximum Working Temperature
158 °F (70 °C)

Design Code Vessels
PED (PD5500)

Design Code Frame
EN 12079

Cartridge Diameter
2.5 ” (6.35 cm)

Cartridge Length
40 ” (101.6 cm) plug in type

Vessel Diameter
24 ”(610 mm)

Pipe Size
4 ”

Material of Vessel and Piping
SS 316 L (all wetted parts)

Material Frame
Carbon steel, epoxy coated

Main Valves
4 ” Butterfly valve, NBR seat, SS disc

Instruments
in/outlet pressure gauge
(0-10 bar/0-150 Psi)

Lid Seal
EPDM O-ring

Lifting
Hoisting slings (certified) and forklift pockets

Vessel Lid
Lever operated swing away

In-/ Outlet
4 ” union fi g.100 inch on 4″ NPT-M

Drain
1 ” SS 316 ball valve with 1″BSP-F

Vent
1 ” SS 316 ball valve with 1″BSP-F

Pressure Relief Valve
1 ” bronze, set point 7 bar (105 Psi)

Weight (Empty)
2650 Ibs (1200 kg)

Dimensions (Lx Wx H)
7.38 x 3.94 x 6.6 ft (2.25x 1.20x 2.00 m)

Product photos

Get in touch

Do you want to know more about the possibilities? Or do you want a quick quote? Call (+47) 51 71 53 80 or send an email to post@ots.as.

Related products
System processes oil-contaminated brines, seawater, surfactants, freshwater, and surface-generated water. Mechanical separation generates dried solids, oil, and water waste streams.
The Magnet Swarf Removal System is designed to remove metal swarf from the circulating fluid during casing-milling operations when milling short length, typical under 60 meters
Environment skid for small volume contaminated fluids
Offshore Technical Services has a wide range of rental filter units. The units are manufactured from stainless steel, and can be used during slop treatment and filtration of slop or other contaminated fluids.
OTS represents Dutch Filtration offering a wide range of filters and systems for filtration of various fluids.
To prevent pollution and save the environment our company have installed a system to clean all waste water produced by cleaning off our rental equipment.
Special designed unit for filtration of small amount of chemicals and hydraulic oil reservoir, fuel tanks etc.
OTS offers rental solutions consisting of centrifuges and separators in various configurations for effective process of waste materials. Trough years of experience we now develop latest and greatest treatment packages.
Specially designed unit for treatment of small volume of contaminated fluid offshore or onshore.
The use of filter bags is a simple and effective way of filtration.
The nominal rated filter cartridges of Twin Filter are true depth filters.
The manufacturing of the Twin Filter absolute (standard 65.5mm) cartridge has undergone a rigorous change. Now the fully thermal welded construction ensures safe usage in filtration with high temperature fl uids, acids, diesel, oily water and solvents.
Twin Filter OilBlock absorption cartridges are specifically designed and manufactured for the high efficiency removal of free, dispersed oils from water.