Pipe Systems  >  FRP - Pipe Systems  >  FRP Pipe Liner HDPE


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FRP Pipe DIN 16 965, pipe typ B,  PN 6  

FRP Pipe DIN 16 965, pipe typ B,  PN 6


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  FRP Pipe DIN 16 965, pipe typ B,  PN 10  

FRP Pipe DIN 16 965, pipe typ B,  PN 10


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  FRP Pipe DIN 16 965, pipe typ B,  PN 16  

FRP Pipe DIN 16 965, pipe typ B,  PN 16


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FRP PIPE SYSTEMS


Glass fibre reinforced plastic, abbreviated as GFRP (in German GFK = Glasfaserverstärkter Kunststoff), also referred to as duroplast, consists of plastic resin and a fibrous reinforcing material. Glass fibres impregnated with an unsaturated polyester resin (UP) or with a vinyl ester resin from the duroplast group, serve as reinforcement material.

Applications for FRP piping systems:
-  piping systems for chemical processing, chlorine process plants, flue gas desulphurisation, water purification and water/ waste water treatment

In Germany, the vinyl ester resin is identified officially as phenactylate resin and is based for the types e.g. Derakane 411-350 or Distrotone VE 100 on bisphenol A and for the sorts e.g. Derakane 470-300 or DION 9400 on novolac resin.

Before processing, these resins are viscous solutions of so-called unsaturated polyesters, which are dissolved in copolymeriazable monomers (styrene). The final product GFRP consists of this plastic material and glass fibres. Good impregnation of the glass fibres with resin is of decisive importance for the product. Before impragnating the glasses accordingly by hand or automatically, radicals (peroxides) have to be added to the liquid resins, in order to imitate the reaction and to transfer the resin from the liquid state to a cross-linked state. .

During linking, no other fission products are produced. The solvent styrene will partly be released during processing. The process time takes 15 to 45 minutes and can be accelerated or slowed down by means of accelerators and/or inhibitors. With the three components (hardener, accelerator and inhibitor), the recipes are mixed individually according to the weather conditions and the necessary processing time and adapted  to the specific processing performed.

Depending on recipe, starts within approximately 30 to 120 minutes an exothermic hardening reaction and warmth is released. This reaction brings about hardening of the unsaturated polyester resins under formation of cross-linked substances by means of copolymerization cured through radicals. With the styrene, the polyester molecules are forming network structures. A product manufactured like this can not be liquified by heating and not be dissolved by solvents (duroplast).

DIN 16 966 regulates specific designs, quality and audit of UP-GF fittings. This includes in particular:
- Negative pressure load
- Layer structure and glass contents
- Styrene content
- Surface quality
- Behaviour towrads chemicals
- Adherence and rigidity
- Hygienic and toxicological safety
- Fire behaviour
- Dimensions
- Audit
- Short-time internal pressure tests

Kwerk GmbH delivers in addition to UP-GF pipe systems, known as pure GFRP, also UP-GF lining materials for fittings according to pipe type B.

Part of our delivery program are:
- PVC U plasticizer-free polyvinylchloride as per DIN 8061, colour grey
- PVC U plasticizer-free polyvinylchloride as per DIN 8061, colour red
- PVC C chlorienated polyvinylcloride as per DIN 8080
- PE-HD polyethylene of high density as per DIN 8075
- PP polypropylene as per DIN 8078
- PVDF polyvinylidenefluoride

Applications for FRP piping systems:
-  piping systems for chemical processing, chlorine process plants, flue gas desulphurisation, water purification and water/ waste water treatment

Our UP-GF fittings are free from defects, like air bubbles and cracks. The laminate structure according to DIN 16966 is guaranteed for the entire length.
On principle, other UP-GF structures are available on request. During manufacture of UP-GF, all sealing surfacec and seams are properly laminated.

Our team, having nearly 40 years of work experience in production and application of UP-GF fittings and connections, will be pleased to answer any additional questions.

Just call us: 0049 2602 999730 or send us an email to: info@kwerk.de



INFORMATION TO OUR DELIVERY PROGRAM



Plastic pipe systems


Overview of plastic pipe systems
Technical information on ABS pipe systems
Technical information on PVC  U pipe systems
Technical information on PVC  U transparent pipe systems
Technical information on PVC  C pipe systems
Technical information on PP pipe systems
Technical information on PP-R pipe systems
Technical information on PE pipe systems
Technical information on PVDF pipe systems

Chemiedur - pipe


Technical information on UP-GF (FRP) pipe systems
UP-GF (FRP) pipes
UP-GF (FRP) molded parts and connection
UP-GF-PP (FRP) molded parts and connection
UP-GF (FRP) adhesive collars
UP-GF (FRP) loose flanges

Plastic pipes


Calculator for cutting pipes
Guidelines for sawing plastic pipe
Leftovers in plastic pipe
Standardization of plastic pipes and molded parts
PVC U pipes deviations
Pressure loss in pipe systems out of PVC U, PVC C and ABS pipe systems
Distinction between Rp, R and G threads
Screw lengths for flange connections

Plastic fittings


PVC U transparent ball valves
Diaphragm valves
Block valves
Butterfly valves
Plastic needle valves
 

Plastic Valves according to ATEX


New EU guideline 2014/34/EU
Plastic Valves in EX zones
Y-Strainers PP-EL DN 15 - DN 50
Check valves PP-EL DN 15 - DN 50
Angle seat valves PP-EL DN 15 - DN 50

Bonding of plastic pipes


Bonding manual
Video showing the bonding of pipes

Plastic welding


Guidelines for extrusion welding


Grids / support grids


GFK grids
Grids out of PP -el electrically conductive
Profile support grids out of PP -el electrically conductive


Molded ventilation parts


Ventilation technology


Chemical hose


PVC transparent hose with fabric inlay


Industrial tanks and chemical containers


Dosing tanks and outer containers 35 – 1000 Liter
Salt dissolving tanks 60 -5000 Liter
Storage tanks and vats
Storage tanks for water
Safety and collecting troughs
Industrial tank delivery program
Dosing tanks with agitator
Dosing tank agitators
Dosing tanks with attachments
Dosing tanks made of sheet material
Customized chemical containers
Dosing tanks with level indicators



 

IBC TANKS/CONTAINERS


IBC screw caps DN 150/DN 200
IBC adapters out of PE
IBC adapters out of PP
MULTI FLEX BLOCK for IBC BULK CONTAINER



Attachment parts for tank construction


Vapor separators
CO2 - absorbes
Manholes
Revision nozzles
Block flange

Filter housings and filter cartridges


PENTEK 3G Slime Line filter housings
PENTEK 3G Standard filter housings
PENTEK Big Blue filter housings
PENTEK PP high temperature filter housings
PENTEK PP all nature filter housings
PENTEK filter bags for Big Blue filter housings
PENTEK surface filter cartridges
PENTEK filter cartridges for depth filtration
PENTEK filter cartridges with activated carbon
CINTROPUR filter systems
CINTROPUR water filters

Flange configurator


Blind flanges, loose flanges,  rectangular flanges

Chemical resistance


Table of chemical resistance for plastic pipe systems
 

Machined plastic parts


Inserts
Screw-in parts
Threaded fittings
Screw fittings

Milled plastic parts


Loose flanges and blind flanges made of sheet material

Static mixers


Static mixers made of plastic

Strainers


Single-type and double-type strainers
Pot strainer DN 300
Angle seat strainer DN 500


Flow meters


Variable area flow meters
Configuration tool for flow meters

Filter presses


Laboratory filter presses

Injection molded parts


Scraper made of PE for filter press


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