Long-axis centrifugal deep well pump is a water-lifting device that refers to water from the deep well to the ground. It is widely used in water supply and farmland irrigation for towns, industrial and mining enterprises that use groundwater as a source of water. The pumped water should not contain the task oil, the sand content is not more than 0.01% (weight ratio), the water quality is neutral, PH=6.5-8.5; the hydrogen sulfide content is not more than 1.5mg/L, the medium temperature is <=95 degree, the wellbore Should be straight, no bidirectional bending is allowed. Its main performance range is: flow: 5-550 m3/h, head: 10-200m. Proper selection of pumps can extend the life of pumps and wells and must be taken care of. 1. The well diameter specified by the pump model refers to the straight tube well. When the depth of the well is more than 30 meters and the well pipe is cast iron pipe or cement pipe, the actual straight diameter should be 50 mm larger than the minimum diameter required by the pump. 2. The flow rate of the selected pump should not be greater than the normal water inflow of the well. Otherwise, the inhalation of a large amount of sediment will accelerate the wear of the pump and reduce the life of the well. 3. Determination of the number of pump stages: The number of stages of the pump is determined by the required head and the required head can be estimated as follows: H=(H1+H2+â–³h)*1.1 Where: H--the total head required; (m) H1--the distance from the moving water level in the well to the pump outlet center; (m) H2--Pump seat outlet pressure gauge multiplied by 10 or the vertical height of the pump seat outlet center to the water level of the tower; (m) â–³h--the loss of the force in the riser pipe and the loss of the force of the water pipe after the outlet of the pump seat. (The negative force loss of the pipe is estimated to be 5-10%). Concerned about surprises Tag: deep well pump total head long shaft moving water level water pump Previous: The ascendant polypropylene silent drain pipe Next: Analyze the acid-base resistance of stainless steel deep well pump Flap Disc Adhesive
Single component Flap Disc resin adhesive glue for making flap disc:
Flap disc adhesive usage:
Composition ratio: A: B = 100:25 (weight ratio)
Available time: 25℃×25-35 minutes
Curing conditions: 25℃×4-5 hours of basic curing
72 hours for maximum strength
Flap disc adheasive glue features:
1. This single component expoxy glue is a room temperature solidification type, yellow brown viscous epoxy resin adhesive;
2. This flap disc epoxy glue can be cured at low or normal temperature, with fast curing speed and certain stop-flow;
3. after curing, the bonding part has high bonding strength, shock resistance, shock resistance, good hardness and good toughness;
4. good acid and alkaline resistance, moisture and waterproof, oil and dust resistance, moisture and heat resistance and atmospheric aging;
5. curing products have good insulation, compression resistance, high bonding strength electrical and physical characteristics.
Scope of resin flap disc glue application
1.. Flap wheel with handle chuck, flap disc, flap wheel, vertical flap disc, plastic flap wheel.
2.. ceramics, wood, glass, fiber products and hard plastic packaging bonding, has excellent bonding strength;
3.. not suitable for bonding elastic or soft materials.
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