check valve -manufacture

check valve (UT-F23) Specification:20mm.25mm, 32mm Color:white green gray Good quality 1. Healthy and non-toxic, free of stains and scales 2. High temperature resistance (maximum water temperature up to110) 3. Adopting hot welding connection for excellent welding quality of pipes and fittings, leakage effectively prevented 4. Excellent heat insulation features with minimal thermal conductively (only one hundredth of the conductivity of metal pipes.) 5. Extremely long usage life of at least 50 years. Applications Potable water pipe networks, such as; 1. cold and hot water supply systems for civil and industrial constructions, e.g. in residential 2. buildings, hospitals, hotels, school and office buildings, ship building sports facilities etc; 3. drinking water system and food industry pipe works; 4. central air conditioning system and heating system for residentiall houses; 5. irrigating system in gardens and green houses 6. public and sport facilities such as swimming pool and stadiums 7. for rainwater utilization systems.