Water-Oil-Trap with extra fine particle filter
model WT 20.83 PVDF XL
model WT 20.83 PVDF EL XL
model WT 20.83 PFA XL
- Advantageous combination of filter + membrane
- With Dual-Membrane-System® to stop of water, acid, alkali, liquid hydrocarbons and extra fine dust
- “Easy Change System” of the inner diaphragm After removing the cover screws, the diaphragm can be replaced quickly and effortlessly. It is not necessary to remove the screw connections
- All gas connections on the lower part of the housing
- Built-in XL filter for particle and permanent liquid deposition
- Bypass function built-in
- Made in Germany 
Functional description:
The Water-Oil-Trap is used as a protection of gas analysers from liquids and particles. A bypass connection is integrated.
The Water-Oil-Trap is installed directly in front of the gas analyser in the piping. If the upstream gas processing (cooler, peristaltic pump, dust filter and the like) fails, the Water-Oil-Trap uses its semi-permeable membrane with SUN-C oil-repellent coating to protect the gas analyser. The membrane separates gases from condensate and extra fine dust.
The Water-Oil-Trap is designed as a bypass filter. The main gas flow can be discharged again via the bypass; a partial current (1:2 to 1:20) will be provided to the analyser. This results in quick response times of the analyser. Condensate/oil carried along is also discharged via the bypass. The aligned incoming flow of the diaphragm has another additional self-cleaning effect. An additional coalescence filter is integrated and helps to deposit oil and aerosols. Particles are also absorbed. An alarm is indicated via the upstream variable area flowmeter with monitoring (refer to sample applications)
The Water-Oil-Trap is also known as a “Police filter”
Coalescence effect:
Diagram as bypass filter for deposition of liquids:
Technical specifications:
| Scope of delivery: | Housing complete with membrane, filter and, assembly bracket |
| Water pressure membrane: | 0 - 2,0 bar with DMS (Dual-Membrane-System®) |
| Oil pressure (10W40) membrane: | 0 – 0,3 bar with DMS (Dual-Membrane-System®) |
| Gasoline (ROZ 95) Membrane: | 0 – 0,2 bar with DMS (Dual-Membrane-System®) |
| The Dual-Membrane-System® of the Water-Oil-Traps is a novel membrane system. Condensates such as water, acid, alkali and liquid hydrocarbons, for example, oils and gasolines in refinery process gases are retained. | |
| The design is subject to a legal protection of registered designs (registered number 20 2016 100 476) | |
|
Operating pressure for gas: |
0 – 3,5 bar |
| Gas flow: |
0 - 180 l air/h |
|
Pressure drop at 60 l air/h: |
approx. 20 mbar |
|
Pressure drop at 120 l air/h: |
approx. 40 mbar |
| Pressure drop at 180 l air/h: | approx. 60 mbar |
|
Diaphragm pore size: |
< 0,1μm |
|
Operating temperature: |
- 5° C to +110°C |
|
Effective filter area: |
30 cm2 |
|
Housing volume: |
30 ml |
| Materials used for model: | |
| WT 20.83 PVDF XL: | PVDF (polyvinylidene fluoride) natural, O-ring FKM (Viton), PTFE with SUN-C* coating, angle bracket: PP |
| WT 20.83 PVDF EL XL: | PVDF (polyvinylidene fluoride) with carbon content, electroconductive (106 Ω/mtr.) Housing colour black, O-ring FKM (Viton), PTFE with SUN-C* coating, angle bracket: PP |
| WT 20.83 PFA XL: | PFA (perfluoroalkoxy polymer) natural, O-ring FKM (Viton), PTFE with SUN-C* coating, angle bracket: PP |
| Housing dimensions: | Diameter 100 mm, height 60 mm |
| Gas connections: | GAS-IN 1/4“ NPT-inside thread GAS-OUT 1/4“ NPT-inside thread KONDENSAT-OUT 1/8“ NPT-inside thread |
| Assembly: | Wall mounting with assembly bracket (included in scope of delivery) |
| Assembly advice: | Installation of the bypass is recommended. Consider the max.membrane pressures if no bypass is possible |
| Language operating instructions: | German and English (included in the scope of delivery) |
| Spanish, Italian, French, Russian upon request | |
Sample application: Natural gas analysis (fuel value determination) with sample preparation:
Order numbers:
protection of utility patents DE 20 2016 100 476
| Item | Item number |
|---|---|
| P V D F | |
| Water-Oil-Trap WT 20.83 PVDF XL material PVDF, as per technical specifications. O-rings FKM (standard) | WT2083PVDFXL |
| Water-Oil-Trap WT 20.83 PVDF XL material PVDF, as per technical specifications. O-rings PTFE | WT2083PVDFXLORPTFE |
| Water-Oil-Trap WT 20.83 PVDF XL material PVDF, as per technical specifications. O-rings FFKM | WT2083PVDFXLORFFKM |
| P V D F EL (electroconductive) | |
| Water-Oil-Trap WT 20.83 PVDF EL XL material PVDF EL, as per technical specifications. O-rings FKM (standard) | WT2083PVDFELXL |
| Water-Oil-Trap WT 20.83 PVDF EL XL material PVDF EL, as per technical specifications. O-rings PTFE | WT2083PVDFELXLORPTFE |
| Water-Oil-Trap WT 20.83 PVDF EL XL material PVDF EL, as per technical specifications. O-rings FFKM | WT2083PVDFELXLORFFKM |
| P F A | |
| Water-Oil-Trap WT 20.83 PFA XL material PFA, as per technical specifications. O-rings FKM (standard) | WT2083PFAXL |
| Water-Oil-Trap WT 20.83 PFA XL material PFA, as per technical specifications. O-rings PTFE | WT2083PFAXLORPTFE |
| Water-Oil-Trap WT 20.83 PFA XL material PFA, as per technical specifications. O-rings FFKM | WT2083PFAXLORFFKM |
|
Spare parts: |
|
| Spare diaphragm, consisting of: white diaphragm, grey diaphragm and indicator plate | MEM2083 |
| Supporting sieve PVDF | STUESI2083PVDF |
| Supporting sieve PFA | STUESI2083PFA |
| Set (5 units) coalescence filter | KF2083XL |
| Set of O-rings FKM Viton (standard), green | OR2083FKM |
| Set of O-rings PTFE, white | OR2083PTFE |
| Set of O-rings FFKM, black | OR2083FFKM |
Note: The standard product is equipped with FKM O-rings.
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