Search text
Home · FRP Solutions
FRP / GRP Products
for Industrial Plants
From a 50 mm Tee to a 5.0 m diameter × 10 m tall Storage Tank. Leeho Vina manufactures the full range of FRP/GRP industrial composites under one roof in Phu Tho. Filament-wound, hand-laid, and pultruded components for every corrosive service in chemical, semiconductor, wastewater, and power-plant industries.
7 Product Families · One Factory
Pipe
Flange
Reducer
Tee
Scrubber
Storage Tank
Duct Pipe
// Catalog
The Seven Core Product Families
Every component you need for a corrosive process line, designed and built in-house, with coordinated resin systems, traceable QA records, single-source liability.
01 / PIPE
Filament Wound
REF · AMKOR · DN 3000 GRP Spool · 2023
FRP / GRP Pipe
Continuous & discontinuous filament-wound straight pipe sections in iso-polyester, vinyl ester, or epoxy. Plain or flanged ends; site joints by overlay-lamination per LSM-STD-010 ITP. The backbone of every Leeho composite piping system.
DiameterDN 15 – 5000
PressurePN 6 – PN 25
Length6 / 12 m
View piping page →
02 / TANK
Filament Wound
REF · DOOSAN Nghi Son · DN 2400 · 2022
Storage Tank
FRP/GRP storage tanks for sulfuric acid, caustic soda, sodium hypochlorite, ammonia, ferric chloride, demineralized water, and process slurry. Custom nozzles, manways, agitator mounts, level instrumentation.
DiameterØ ≤ 5.0 m × 10 m H
Pressure≤ 1 bar.g
StandardASTM D3299/D4097
View tanks page →
03 / FLANGE
Hand Lay-up
FIG · GRP FLANGE · LSM-STD-010 · ITP
Flange
Van-stone, drilled flat-face, stub-end and blind flanges. ASME B16.5 / ISO 7005 / JIS B2220 drilling.
DN25 – 3000
Class150 – 300
View flange page →
04 / REDUCER
Hand Lay-up
FIG · GRP REDUCER · LSM-STD-010 · ITP
Reducer
Concentric and eccentric reducers, hand-laid for any pipe diameter combination. Smooth tapered ID.
StyleCONC / ECC
Rangeany DN
View fittings page →
05 / TEE
Hand Lay-up
FIG · GRP TEE · LSM-STD-010 · ITP
Tee / Cross
Equal & reducing tees, crosses and laterals with reinforced saddle for branches ≥ DN 150.
Branch≥ 25mm
TypeEQ / RED
View fittings page →
06 / SCRUBBER
Filament Wound
REF · NAFCO Japan · DN 3000 × 8600H · 2025
Scrubber Tank
Wet scrubber columns for acid mist, ammonia, chlorine, HCl. With packing supports, spray header, mist eliminator.
DiameterØ 0.5 – 5.0 m
Removal≥ 99%
View scrubbers page →
07 / DUCT
Hand Lay-up
REF · AMKOR Bac Ninh · DN 4800/2000/1400 · 2023
Duct Pipe
Round, square, rectangular FRP ducts for FGD flue gas, fume exhaust, or ventilation. Stiffening ribs for low-pressure service.
Cross-section≤ 6 × 6 m
Pressure±25 kPa
View piping page →
// Why FRP / GRP
Six Advantages over Steel & Plastic
FRP combines the strength of steel, the corrosion resistance of plastic, and the formability of fiberglass, without the limitations of any of them.
ADV 01
Corrosion Immunity
Composite bond is non-metallic: there is nothing to oxidize. FRP is unaffected by chloride, sulfide, sulfate, or chlorinated organics that pit and crack stainless steel.
∞ service life vs corrosion
ADV 02
Low Weight
1/4 the density of carbon steel. Smaller cranes, simpler supports, less foundation work, faster site installation. A DN 1200 FRP pipe spool weighs ~90 kg/m vs ~290 kg/m for steel.
~75% lighter than CS
ADV 03
50+ Year Design Life
ASTM D2992 long-term hydrostatic regression validates a 50-year service life under operating pressure. Steel CW pipes typically need replacement at 15–25 years from corrosion.
50 yr
ADV 04
Smooth Bore = Low Friction
Hazen-Williams C = 150 vs steel C = 100–120. Pumping head drops by 20–30%. No internal scaling, no biofouling, no MIC (microbial induced corrosion).
C=150 HW coefficient
ADV 05
Lower Total Cost
Initial CAPEX of FRP can match steel or be 10–20% higher; over a 25-year lifecycle TCO drops 30–40% from zero corrosion maintenance, lower pumping head, and no protective coatings.
−40% 25-yr TCO
ADV 06
Engineered Anisotropy
Filament winding lets us tune fiber orientation, strong axial, strong hoop, or biased to absorb internal pressure & external loads. Custom resin/glass system per service.
±55° optimum helix angle
// Material Comparison
FRP vs Carbon Steel vs Stainless vs PVC
Side-by-side for the typical power-plant CW & FGD service.
| Property | FRP / GRP | Carbon Steel | Stainless 316L | PVC / CPVC |
|---|---|---|---|---|
| Corrosion in seawater | Immune | Severe | Pitting / SCC risk | Immune |
| Service life (CW line) | 50+ yr | 15–25 yr | 25–35 yr | 20–30 yr |
| Weight (kg/m DN 1200) | ~ 90 | ~ 290 | ~ 290 | ~ 60 |
| Max temp (continuous) | 90 °C (VE) | 200 °C+ | 500 °C+ | 60 °C |
| Max pressure | PN 25 | PN 100+ | PN 100+ | PN 16 |
| Internal scale / MIC | None | Yes | Possible | None |
| Hazen-Williams C | 150 | 100–120 | 120–130 | 150 |
| Internal coating needed | No | Yes (rubber/epoxy) | No | No |
| Field repairable | Yes (lamination) | Welding | Welding | Solvent weld |
| Capex (relative) | 1.0 – 1.2 × | 1.0 × | 2.5 – 4.0 × | 0.7 – 0.9 × |
| 25-yr TCO (CW service) | 0.6 × | 1.0 × | 1.5 × | temperature limited |
Ready for an FRP package quote?
Send us your line list, P&ID, or general arrangement. Leeho engineers reply with sized BOM and pricing within 48 hours.
Request FRP Quotation →
Need help? Contact us
