In general , there are many factors that can affect the price of solar street lamps. The first step we investigate when we buy solar street lamps is the question of the actual qualification of the manufacturer. Only when the company has perfect qualifications can we have professional production equipment and have our own unique technology. These problems It has a very big impact on the price of solar street lights, and directly affects the function and service life of solar street lights. The after-sales service also has a certain influence on the price. Regular large manufacturers have a complete after-sales service mechanism. If problems occur, they can be resolved in time or the products can be replaced. It is easy to use. The quality of solar street lamps produced by large manufacturers is There will also be certain guarantees. Secondly, the components of solar street lamps also have an impact on the price of solar street lamps. In fact, the controller is divided into good and bad. The high-quality controller can make the solar street lamp run normally even when there is no sun on a continuous cloudy day. The high-quality controller perfectly avoids the disadvantages of solar energy. In the selection of batteries, it is necessary to consider factors such as the impact of daily solar discharge rate on battery capacity, the impact of ambient temperature on battery capacity, the effect of deep discharge on battery capacity, etc., so we must choose high-quality deep-cycle solar special batteries . The quality materials of the light pole, the quality of the light source, and the efficiency of the battery panel also affect the price of solar street lights.
Pneumatic Butterfly Valve is operated by pneumatic actuator, the actuator have two types, single acting type and spring return type. According to different working condition, the valve can be made by material PVDF, CPVC, PVC, PP, PPH, lined PTFE and Lined rubber, connection by flange, wafer and lug, as per standard DIN, ANSI, BS, size from 2" to 40". pressure rate by PN10, PN16, 150LB.
Ningbo RMI Plastic Co., Ltd. offer Electric Butterfly Valve with specification:
Size: DN50~DN1000 (2 inch ~ 40 inch) Pneumatic Butterfly Valve Pneumatic Butterfly Valve,Butterfly Valve Pneumatic,Pneumatic Control Butterfly Valve,Control Valve Ningbo RMI Plastic Co.,Ltd , https://www.rmiplast.com
Connection: wafer, lug, flange ANSI CL150, JIS10K, DIN PN10
Material: PVC-U; PVC-C; PVDF; FRPP; PP-H, WCB, CI
Actuator: Pneumatic
Type: Spring return, double acting
Air supply: 4~6bar