Email format error
Email cannot be empty
Email already exists
6-20 characters(letters plus numbers only)
The password is inconsistent
Email format error
Email cannot be empty
Email does not exist
6-20 characters(letters plus numbers only)
The password is inconsistent
PUMPS CMF2-40 50HZ
This is a high-pressure and high-efficiency water pump with a 1.6 HP. The pump head consists of stainless steel and steel, which can resist corrosion, abrasion and other adverse conditions to ensure the long service life. The thermal overload protection function can effectively avoid accidents and protect your safety in use. And with the slide valve, it becomes easy to operate safely.
A powerful 1.6 HP pump with a pressure tank provides fast water extraction for your residential and agricultural applications (no drinking water). The pump head is made of stainless steel for corrosion resistance, so you can place the tank in any weather and expect reliable performance for a long time.
Product parameters
| 50Hz | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Model | Model | Driving motor P2(KW) | Q (m3/h) | 1.0 | 1.5 | 2.0 | 2.5 | 3.0 | 3.5 |
| CMF2-40 | CHL2-40 | 0.55 | H (m) | 35 | 32 | 28 | 26 | 23 | 17 |
In the operation of a centrifugal pump, the idling of the water pump is not allowed. The majority of users are "pale at the mention of idling of centrifugal pump". The reason for this is that they do not understand the causes of the idling phenomenon and how to solve it well. In fact, centrifugal pump idling in a very short time will not cause damage (within 1 minute).
Causes of centrifugal pump idling
The inlet medium of the water pump is insufficient or the water inlet pressure is insufficient, or the water inlet pipe of the water pump is blocked, or the air in the water pump cavity is not exhausted.
When the centrifugal pump idles, the impeller has no or little contact with the medium, so it cannot work effectively, and the liquid cannot be delivered normally. These are useless work. Due to the lack of effective work, the load on the motor is very small, and the generated current is also very small, which will have no impact on the motor. The impact of pump idling on the pump is indeed fatal. The idle water pump is easy to cavitation, causing damage to the pump body and overflow parts; Idling pump mechanical seal or packing seal will not get liquid lubrication, resulting in dry grinding and rapid damage; The rotor parts and pumps of the idling water pump experience heating, and there is no cooling of the liquid. Those narrow gap positions (such as the sealing ring) are easy to bite by the effect of thermal expansion and contraction; The balance disc of the idling multi-stage centrifugal pump is not lubricated, and the balance disc will soon be burned and damaged.
During the early warning and maintenance of centrifugal pump idling, it is suggested to improve the design of centrifugal pump to a higher level:
- Handle all clearance positions of the centrifugal pump and expand it under allowable conditions to prevent seizure;
- Carry out special process treatment, tempering, heat treatment, etc. on the shaft of the centrifugal pump, improve the hardness, and use materials with low flexibility to prevent the shaft from being bitten by a large swing during idling;
- Use machine seals and packing cavities that do not need to be lubricated by liquid media;
- Sealed self-lubricating bearings without oiling shall be selected.
Compared with other centrifugal pumps, the volume space of the pump cavity of the horizontal self-priming centrifugal pump has increased, and there is a place where water can be stored. Before the self-priming centrifugal pump works normally, the cavity should be filled with liquid. There is a period of self-priming time before operation, during which the air is continuously discharged outside the pump, which belongs to partial idling.
Set the idle induction system. The water pump is monitored in real-time through modern equipment. When the centrifugal pump idles, it will immediately alarm and automatically stop, so as to protect the safety of the unit.
Application field
① In the production of chemical and petroleum sectors, most of the raw materials, semi-finished products and finished products are liquids, and the production of semi-finished and finished raw materials into semi-finished products and finished products needs to go through complex technological processes. During these processes, pumps play a role in transporting liquids and providing pressure flow for chemical reactions. In addition, in many installations, pumps are used to adjust the temperature.
② In agricultural production, pumps are the main irrigation and drainage machinery. my country's rural areas are vast, and a large number of pumps are needed in rural areas every year. Generally speaking, agricultural pumps account for more than half of the total output of pumps.Pumps are also the most used equipment in the mining and metallurgical industries. The mine needs to be drained by pumps, and in the process of beneficiation, smelting and rolling, pumps are needed to supply water.
③ In the power sector, nuclear power plants need nuclear main pumps, secondary pumps, and tertiary pumps, and thermal power plants need a large number of boiler feed pumps, condensate pumps, oil and gas mixing pumps, circulating pumps, and ash pumps.
④ In national defense construction, the adjustment of aircraft flaps, tail rudders and landing gear, the rotation of warships and tank turrets, and the ups and downs of submarines all require pumps. High pressure and radioactive liquid, and some also require the pump without any leakage.
⑤ In short, whether it is aircraft, rockets, tanks, submarines, drilling, mining, trains, ships, or everyday life, pumps are needed everywhere, and pumps are running everywhere. That's why the pump is listed as a general-purpose machine, which is a major product in the machinery industry.
⑥ Electric pumps, i.e. pumps driven by electricity. The electric pump is composed of a pump body, a water lift pipe, a pump base, a submersible motor (including cables) and a starting protection de
