Particulate erosion in elbows
Paths of different sized particles  and various flow regimes
Small
light particles

Particles in
highly viscous
dense fluid
Medium
light particles

Particles in
medium viscous
dense fluid
Large
heavy particles

Particles in
low density
low viscous fluid
/ low pressure gas
Factors determining rate of particle erosion:
- Flowrate
- Velocity, viscousity & density of fluid
- Size, shape and hardness of particles
   which controls the particles impact angle
   erosion generally increases with greater angle

Products

Materix's unique Flexible Supported  Inlay  (MTX-FSI)  technology forms the foundation of our business. The technology makes it possible to line various kind of metal housings with ceramic inlays for enhanced erosion and corrosion resistance. We focus on the WRPF portfolio lining standard ASME B.169 carrier fittings in the low pressure domain, but  the FSI  technology is applicable to  even more complex geometries and  Materix has an ongoing program to develop the methodology for elevated pressure and temperature ratings for customers to take advantage of this unique opportunity to lower maintenance cost and periodic replacement of conventional metallic wear parts.
    WRPF DESIGNATION
    B.16.9 CARRIER
    CERAMIC INLAY
2D DRW
3DXML
3D CAD
WRPF SiC
    LRE90 NPS4 SCH40 VIC
     Elbow LR90 NPS5 S40
    CP-LRE90 NPS4
Material Properties Inlay
    LRE90 NPS4 SCH40 ANSI
    Elbow LR90 NPS5 S40
    CP-LRE90 NPS4
    LRE90 NPS5 SCH40 VIC
     Elbow  LR90 NPS6 S40
     CP-LRE90 NPS5
    LRE90 NPS5 SCH40 ANSI
   Elbow LR90 NPS6 S40
    CP-LRE90 NPS5
     LRE45 NPS4 S40 VIC
    Elbow LR45 NPS5 S40
    CP-LRE45 NPS4
    LRR180 NPS4 S40 VIC
    180 Return NPS5  S40
    CP-LRR180 NPS4
    5D-45 NPS4 S40 VIC
    5D-45 Induction Bend S40
    CP-IB5D-45 NPS4
    CR5-4 NPS4 S40 VIC
    Reducer Concentric 5-4 S40
    CP-CR5-4
    ET NPS4 S40 VIC
    Equal Tee NPS5 S40
    CP-ET NPS4
Notes:
Green colored letters indicate stock sizes available for express delivery dependent on size of order.
Use RFQ form for rapid response on envelope & routing dimensions on sizes not listed in table
3DXML viewer  browser plug-in for IE  can  be downloaded  free of charge from Dassault Systems. Install and view simplified 3D representations of the WRPFs.
eDrawings viewer can be downloaded here...
Materix WRPF

Erosion resistance is usually associated with high hardness and Silicon Carbide is 50% harder than tungsten carbide and ten times harder than conventional stainless steel. The erosion mechanisms are complex and subject to many variables. Dependent on flow regime viscosity, corrosivity, mass flow, velocity, particle impact angle etc. the potential life time gain switching to WRPF could be in excess of 20 times conventional fittings.

Materix Wear Resistant Pipe Fittings have a solid silicon carbide lining with 1/4 of an inch wall thickness inside an oversized ASME B.16.9 carrier fitting to make space for the MTX-FSI  features. Silicon Carbide is the third hardest commercial available ceramics behind diamond with erosion resistance comparable to tungsten carbide in dry conditions. In dual action erosion- corrosion environments SiC outperforms tungsten carbide being one of the most chemical immune ceramics with superior corrosion resistance.


WRPF Designation
WRPF <Fitting Type> <Nominal Pipe Size> <Pipe Schedule> <Connection> <Piping Class> <Material>
   Example:  WRPF  LRE90 NPS4 SCH40 VIC CL150 CS
               => WRPF Long Radius Elbow 90| 4inch pipe size|  Sch40| Piping Class 150| Carbon Steel|  Victaulic
WRPF Fitting Type
B.16.9 Carrier
NPS
SCH
Material
Connection
LRE90, LRE45
LRR180
SRE90, SRE45
SR180
ET
RT
CR
ER
EC
LR90, LR45
180 LR Return
SR90, SR45
180 SR Return
Equal Tee
Reducing Outlet Tee
Concentric Reducer
Eccentric Reducer
End Cap
<6*
40**
CS
SS
DSS
SDSS
NiA
WLD
VIC
ANSI
API
TEC
GRL
NOTES:
*  Up until NPS5 a 1 inch oversized carrier is used. From NPS6 to NPS18 a 2 inch or oversized B.16.9 carrier is required,
** Class 150/ Sch40 is currently maximum WRPF rating qualified. Higher rating upon feasibility study request
Letters in Bold are standard options    |Grey Italic letters are optional by request
CS= Carbon Steel    | SS= Stainless  Steel    | DSS= 22 Cr Duplex    | SDSS= 25Cr Duplex    | NiA= Nickel Alloy
WLD = weld prep      | VIC= Victaulic groove  | ANSI= Ansi flange      | API= API Flange          | TEC= Techlok hub   | GRL= Grayloc hub
Space Consumption Comparison
WRPF LRE90 NPS4 (1.7D)
vs
NPS4 Induction Bend
10D Bend
5D Bend
WRPF Benefits

  • Multiplied life time gain
  • Enhanced MTBF, MTBUR
  • Reduced Inventory Need
  • Less Space Consumption
  • Flexible Routing
  • Easy Retrofit
  • Increased System Uptime







 
OPTIONAL CONNECTIONS
A well known strategy to cope with abrasive fluids is to keep the particle impingement  hit angle towards steel pipe walls as low as possible  using large radius  5D/ 10D induction formed bends.  WRPF elbows facilitate smaller central line radius because of the extreme wear resistant inlay allowing for more aggressive particle hit angles and still extend life time - not compromising it. On offshore drilling vessels uptime is critical and there is shortage of space. - WRPF can offer  more flexible and less space consuming pipe routes along with reduced risk of  washout and a fraction of erosion rate compared to conventional heavy wall carbon or stainless steel fittings.
Downloads

For routing feasibility studies,  drawings in PDF or 3D CAD models in STEP are available for download in the table below. The 3DXML format can be read in the edrawing viewer or in Internet Explorer through the 3DVia Player browser plug-in from Dassault Systems.
Purchase

  • Volume discount
Lease


  • Annual Lease Agreement
  • A single cash amount upon delivery
  • Monthly rental fee during lease period
  • 10% backup items on site
The technology was qualified July/ August 2011 on the Gullfaks field in a pneumatic conveyance system for drill cuttings at fluid velocities btw 50-100 m/s. Alongside 10D concurrent induction formed bends, the WRPF survived 12 carbon steel bends without detectable wear in the inlay after 230m3 abrasive flow.
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Materix AS    |     Solegaardsveien 13, N-5243 FANA- Norway    |    +47 99 26 00 91    |    sales@materix.no
Materix designs, develops and manufactures  wear resistant solutions through reliable  ceramic lining of  pipe fittings and  other pressure retaining equipment.
The WRPF portfolio is tailor made to sustain high velocity particle flow in pneumatic conveyance systems for drill cuttings transportation offshore and onshore.
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Pipe Fittings For Durable Transport
Of Abrasive Fluids And Particles