I. Product Overview: G-type single-screw pump with stepless-speed motor has been widely used in the development, the majority of foreign single-screw pump "Mono pump" "MONOPUMPS", Germany called "eccentric rotor pump." Due to its excellent performance, the range of applications in China has also rapidly expanded in recent years. Its great feature is its strong adaptability to medium, steady flow, low pressure pulsation, high self-priming ability, which cannot be replaced by any other kind of pump. Our foreign (such as: Germany, Britain, France, Japan and other countries) production of single-screw pump and domestic products of the same industry, made analysis and research, to win the public, and continue to carry out reform and innovation on their own production. At present, our company's products have become a system, the pressure is 0.4 ∽ 1.2MPa, to meet the different needs of the majority of users of single-screw pump. The quality of the pump is reliable, three bags are implemented, and the price is relatively low. This unit is dedicated to serve the majority of users and accepts the design and manufacturing tasks of single screw pumps for special requirements. Second, the model meaning: Third, the scope of use: Due to the special geometry of the two components, a separate sealed chamber is formed, the medium is uniformly pushed by the axial flow, the internal flow rate is low, the volume is maintained constant, and the pressure is stable, so that vortex and agitation are not generated. Each stage of the pump output pressure is 0.6MPa, head 60m (clean water), self-priming height is generally more than 6m. Fourth, the structure description: Five, G type single screw pump matters needing attention 1. Before starting the G-type screw pump must determine the direction of operation, shall not be reversed. Six, G-type screw pump performance parameters: G20-1 960 0.8 0.6 0.75 60 25 25
Safety is one of the most important for Construction Hoist, thus the Construction Hoist Safety Device is required. SAJ safety device is a product of BQ. When a cage over-speeds the device should act cut off the power stop the cage on mast gradually. The safety device is adjusted and sealed. Do not disassemble it. The using time limit of safety device are signed on it`s nameplate. Safety device must be delivered to the factory and inspected after it reached to time limit.
Safety device board is the connected part between safety device and other structures, it can take the impact of stopping the cage. There are installed lower speed switch, upper travel limit switch and final limit switch, once the switchs touch the relevant cam the cage will act.
We also supply other spare parts for construction hoist, such as construction hoist Mast Section, Construction Hoist Anchorage Frame, Passenger Hoist Cage, Construction Hoist Overload Protector, Sliding Contact Line, Construction Hoist Motor, Construction Hoist Reducer and so on.
SAJ Safety Device,Passenger Hoist Safety Device,Construction Hoist Overload Protector,Overload Limiter,Anti-fall Device SHEN YANG BAOQUAN BUSINESS CO., LTD , https://www.sytopkittowercrane.com
Since the stator is made of a variety of elastomeric materials, this type of pump is capable of delivering high viscosity fluids and transporting hard suspended particulate media or fibrous media. Its flow is proportional to the speed.
The pump is compact, small in size and easy to maintain. The adaptability to the medium is strong, the flow is stable, the pressure pulsation is small, and the self-priming ability is high. Operating temperature up to 120 °C, if you need to convey 120 °C -350 °C high temperature medium, can be customized. Widely used in food, metallurgy, paper, printing and dyeing, chemical, fertilizer, pharmaceutical and other industrial sectors. 
2. Type G screw pump is forbidden to operate under no medium condition so as to avoid damage.
3. If the G-type single screw pump newly installed or shut down for several days cannot be started immediately, it is necessary to inject a suitable amount of oil into the G-type single screw pump first, and then start the pipe wrench after a few revolutions.
4. After conveying highly viscous or granular and corrosive media, rinse with water or solvent to prevent clogging, so as to avoid difficulties in starting the next time.
5. The winter should be queuing fluid to prevent freezing.
6. During the use of the G-type screw pump, the bearing box should be regularly lubricated. If there is any seepage at the shaft end, the oil seal must be handled or replaced.
7. If an abnormal situation occurs during operation, immediately stop the cause and troubleshoot.
r/min
M3/h
MPa
KW
m
Mm
Mm Construction Hoist Safety Device
G-type screw pump with stepless speed motor
G type single screw pump (with stepless speed regulation motor)
1
Discharge chamber
2
Pull rod
3
Screw sleeve
4
Screw shaft
5
Universal joint assembly
6
Suction body
7
Connecting shaft
8
Packers
9
Packing gland
10
Bearing seat
11
Bearing cap
12
Motor
13
Coupler
14
Bushing
15
Bearings
16
Transmission spindle
17
Base
model
Rotating speed
flow
pressure
Motor
Yang Cheng
import
Export
G25-1
960
2
0.6
1.5
60
32
25
G25-2
960
2
1.2
2.2
120
32
25
G30-1
960
5
0.6
2.2
60
50
40
G30-2
960
5
1.2
3.0
120
50
40
G35-1
960
8
0.6
3.0
60
65
50
G35-2
960
8
1.2
4.0
120
65
50
G40-1
960
12
0.6
4.0
60
80
65
G40-2