QT electric actuator is Guangdong's own electric actuator. Guangdong QT electric actuator can classify QT1~QT4 partial rotary valve electric device is the latest replacement product developed by our company. It is suitable for controlling valves such as butterfly valves, ball valves, and plug valves for 90° rotation. This product replaces the same specification QB series products, small size, light weight, high efficiency, high reliability, high protection performance, low noise and so on. It can be operated on site or remotely. Can be widely used in petroleum, chemical, power plants, water treatment, paper and other industries. The product has a degree of protection of IP67, and the explosion-proof version (Ex in the model) has an explosion-proof rating of dIIBT4. Knife-type gate valve, also called knife-shaped gate valve, knife gate valve, is suitable for pipes with suspended particles, fibrous materials, pulp, sewage, coal slurry, ash and cement mixture, etc., by knife-edge rams that can cut fiber materials. Cut off these media. The valve body does not actually have a chamber, the shutter lifts in the side guide groove, and the lug at the bottom is pressed against the valve seat. If a high medium sealing property is required, an O-shaped sealing seat can be used. Two-way seal. According to the driving method, it is divided into manual knife type gate valve, pneumatic knife type gate valve and electric knife type gate valve.

The knife-type gate valve is light and flexible, small in size, smooth in passage, small in flow resistance, light in weight, easy to install and easy to disassemble. The nominal size is DN50~DN800, which can be normal under working pressure of 0.6MPa~1.6MPa and temperature ≤100°C. jobs. The knife-type gate valve has a shearing function, which can scrape off the adhesive on the sealing surface and automatically remove debris. Stainless steel rams prevent seal leakage due to corrosion.
PZ73H, PZ73F, PZ73Y manual knife type gate valve: manual drive, clip-on connection, open parallel rigid single gate, valve seat sealing surface is cemented carbide and PTFE, nominal pressure PN10~16, valve body material It is a carbon steel (PZ73H-10C/16C), stainless steel (PZ73F-10P/16P PZ73Y-10P/16P), and has a slag discharge function.

Adopting a full circular channel design, a Teflon, a scraper is installed on the upper end of the blade, and a wear-resistant folding cone made of polyester or Ni-containing wear-resistant cast iron is installed at the inlet end of the knife gate valve. A plurality of flushing ports are provided around the valve body. The bottom end of the blade is processed into a blade with a high finish, which ensures a good seal. Widely meet the requirements of papermaking, pulp industry, industrial sewage and urban sewage treatment, chemical plant, fly ash treatment, bulk material transportation, food and beverage industry, and harsh working conditions.

1. Ultra-short structure length, saving materials, can greatly reduce the overall weight of the pipeline system.

2. The occupied effective space is small, which can effectively support the strength of the pipeline and reduce the possibility of pipeline vibration.

3. The austenitic stainless steel is used for the gate, and the corrosion resistance is greatly improved, which can effectively prevent the seal leakage caused by the corrosion of the gate.

4. The upper sealing packing is made of flexible PTFE, which is reliable in sealing and light and flexible in operation.

5. The gate has the function of the knives, which can effectively break all kinds of debris in the medium.