The surface of resin-rich layer should be smooth and clean, without damage, whitening, delamination, foreign inclusion and exposed fiber. The convex-concave larger than 3mm in diameter and 0.5mm in depth (height) is not allowed; For the pressure vessel, the max. allowable air bubble is 4mm in diameter. Within the area of 1 m2, the air bubble within DN 4mm should be no more than 3, otherwise the repair should be given; the depth of crack should be no more than 0.2mm.
The outer surface should be smooth and even color without whitening. Fiberglass must be impregnated with resin. Foreign inclusion, exposed fiber, interlayer delamination, delamination and resin blister, etc. are prohibited.
For the resin content, it should be more than 90% in resin-rich layer, more than 75±5% in middle layer, more than 35±5% in structural layer and more than 90% in outer layer.
The taper angle at the inner wall of tank is no more than 1°.
Under the loading condition, the allowable hoop strain should not exceed 0.1%.
When the winding layers are wound at helical winding angel 80°, its tensile strength should be equal to or more than 15MPa.
Barcol hardness on proudct's surface should be no less than 40.
Water absorption should be no more than 0.3%.
Length tolerance (distance between the peaks of two ends) is 1%.
The tolerances of tower's straightness and installation verticality are both 1/1000mm tower's height.
The difference between the max. diameter and min. diameter from the same section of the shell should not exceed 0.5% of shell ID.
Features
Light weight & High Strength;
No Rust & Strong Corrosion Resistance Performance;
Flexible Design & Free Combination;
Reasonable Price & Considerate Service;
Easy to Install & Convenient to Maintain;
Easy to Transport & UV Resistance Performance;
Health and environmental protection, will not grow bacteria;
Lifetime of FRP tank is over 50 years with proper maintenance.
Hengshui Aoliande Trade Co., Ltd. is professional company which to market & sell FRP Pipe, FRP storage tank, FRP molded products, FRP pultrused products and FRP production machines, through the continuous development and introduction of professionality and technology, the company rely on advanced technology, exquisite craftsmanship, reliable quality and perfect service, passed ISO9001, ISO14001, OHSAS18001 management system certification, now we have 50+ staff, annual sales of glass fiber reinforced plastic series products achieved 5,000,000 USD, products have been sold to all over the world, USA, Brazil, Japan, Germany, India, Malaysia, Egypt etc, and won the support and trust from new & old customers.
1. Q: Are you Trading Company or Manufacturing Factory?
A: We are both manufacturer and trading company. We have our own factory for almost 10 years, and we have better service of overseas customers. Welcome to send your inquiry!
2. Q: How about the Delivery time?
A: Normally, 10-15 days to finish the order for a 20ft container. Welcome to ask for the detailed delivery time according to your order quantity!
3. Q: How can you guarantee the product quality?
A: We have the quality control system ISO9001:2015, and it's been followed strictly. We also have the professional QC team, and each our package worker will be in charge of the final inspection according to the QC instruction before packing.
4. Q: What is about the payment terms.
A: Basically, the payment terms are paypal, T/T, L/C at sight. Western Union, Alipay.
5. Q: Can you do OEM for me?
A: We accept all OEM orders, just contact us and give me your design,we will offer you a reasonable price ASAP.