Single-stage Marine Fire Fighting Pumps Unit

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China main port
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TT OR LC
Min Order Qty:
1 unit
Supply Capability:
1000 unit/month

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Product Description:

Application

Apply as the transportation of liquids in the fields of air condition, heating, sanitary water, water treatment cooling, refrigerating system, liquid circulation, water supply, pressure boosting,sea water delivery and irrigation etc.

 

Working Conditions

Rotating speed: 3600r/min, 1800r/min, 2960r/min, 1480r/min

Medium: clean water or other liquids similar to clean water in physical and chemical properties

Medium temperature: -10 ~ 80°C,400°C available under special design

Ambient temperature: Up to 40°C

Range of capacity:1.8~2000m3/h

Range of head: up to230m

Maximum working pressure: suction pressure+head of pump≤25 bar

 

Pump Construction

Casing/impeller:cast iron,stainless steel,copper,bronze

Shaft:carbon steel 45#,stainless steel

Mechnical seal:graphite/silicon carbide/tungsten carbide 

 

Structure Description

Compact structure, most application for modern constructions.

1.Pump casing: the spiral casing with pipe connection is designed and manufactured by the most superior bydraulic model nowadays, with inlet and outlet the same diameter. Flanges conform to GB4216.5, and are equipped with Rp1/4 or Rp 3/8 pressure testing plug.

2.Impeller: closed impeller ,no limit to rotation direction under the water temperature below 80°C and 120°C.

3.Special design of dynamic seal ring ensure well seal and reliable operation..

 

Motor

TEFC air-cooled squirrel cage, 3 phase asynchronous motor.

Voltage: 220V,380V,400V,415V,440V,660V(other voltage ,pls inform before order)

Frequency: 50Hz,60Hz

Insulation : IP44/IP54/IP55

Protection class: B/F

Insulation modes: B35

 

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Q:water pump kicking on all the time!?
The problem is your water system is not holding pressure properly. A couple of simple things to check are the *pressure switch. This switch monitors line pressure and turns pump on and off (ex: 20/40=pump on at 20PSI off at 40 PSI). Most older systems have this along with a pressure gauge screwed into top of pump. simply turn on water while someone monitors gauge. If it reads 20 and pump starts then reads 40 and pump shuts off it is not switch. If readings are way off change switch. *if you have a bladder tank, check the pressure in it (you can tell if it has a valve stem on top just like your car tires). There is us usualy a chart on top of the tank giving recomended pressure. Use a tire gauge to check pressure, if low put some air in it. If this does not work go talk to your local hardware or someone in the plumbing trade for better suggestions.
Q:How do I know if it's my well water pump, thermostat or water heater?
If you have no water at all, it is probably the pump. Check the circuit breaker for the pump before you do anything else. If the breaker hasn't been tripped, check the pressure guage (if there is one) near the well. If there is no pressure, it is definitely the pump. If the pump is operational (if it is operational, the guage will show a pressure reading), there could be a blockage in the pipe between the well and the house.
Q:What is the difference between a low pressure pump and a high pressure pump?
The magnitude of the pressure at the outlet side of the pump
Q:Under what circumstances should we set up fire pool and fire pump room? Is it necessary to have a building?
These facilities are available only in large public buildings.
Q:My '97 Pontiac Grand Prix is leaking the water we put into it from underneath the car. Is it the water pump?
If the leak is on the passenger side of the car (near the tire) then it is most likely your water pump. It is driven by the serpentine belt that drives most of the visible components on the passenger side of the engine. (power steering, A/C, Alternator etc) To check it, you need to look UNDER the water pump, it has a weep hole. If this small (1/8) hole is wet, or shows signs of having been leaking (like discoloration or rust) then your waterpump seals or bearings are going. The unit must be replaced. This should also fix your over heating problems. If the leak is near the back-center of the engine, then it may be a frost plug (also called a freeze plug) these are designed to pop if the enging coolant freezes to prevent damage to the engine block, they can also be opened if the engine over heats. Be careful when replacing this plug, if you drive it INTO the engine, you will have to dismantle the engine to get it out again. On the plus side, you can get rubber plugs that are easy to install and quite inexpensive. I'd place the water pump as the most likely problem.
Q:water pump?
If you don't see drip marks under your car when you come out in the morning or when it's parked, it's probably not the water pump. Either way, that coolant is going someplace. Might it be possible that you had the AC on when you heard the clunking sounds? When you have the AC on and the AC compressor comes on it puts an extra drain on the engine and makes a noticable change in the way the engine sounds. What I would do is find a way to get under the car with a flashlight and take a look around and see if anything is wet. I had a 1999 Chevy Tahoe and had all these same sort of things you are describing, so I climbed up under it and looked around and saw a drip around one of the seals on the water pump. For about three weeks I kept my eye on it and noticed the drip marks under my car. Eventually one day on a quick trip to the corner store, the pump finally went and and deluge of coolant came pouring out the bottom of my car. It could also just be a loose hose or a blown headgasket. Check your oil and see if you have any coolant in the oil (you'll be able to tell). If you do, take it to a garage ASAP or you'll be really screwed! Either way, if it's the pump you'll know it sooner or later when it blows out!
Q:can i hook 2 water pumps together?
You can always use demand pumps to do the job. This way they just sit idle and wait on the call for water before they go to work.
Q:What kind of water pump should I get?
Approach okorder.com/
Q:function of regulator in water pump?
This might be explained with an example. There is a water tank being used by a community (or a dwelling) and it is supplied by a pump from a well. There is a switch in the tank that is wired to the pump motor. The switch is activated by a lever attached to a float in the tank. When the float is in the down position the pump runs, When the float is pushed up by the water the punp is turned off. The pump first operates and fills the tank and then shuts off when the tank is full. When the usage of water drops the water in the tank to a certain level, the pump turns on until it is full again. The float, the switch and the motor are the pump regulating devices. This type of regulation is called two-position, like a light switch. Other more involved types of regulation may adjust a valve in the pipeline from the pump . This changes the rate of flow while the pump continues to run. The first type of regulation can be called digital because the flow is yes or no. The second can be called analog because while it is on, the flow varies in amount. If I have not adequately answered your question, maybe someone else will.
Q:Stop the engine immediately and stop the circulating pump and the condensate pump. What's the harm to the turbine?
The condensed water is also used to air pumping device, steam seal cooler as cooling water, according to rules of turn.The circulating water is also used to supply cooling water to the oil cooler, and the oil temperature will rise.Hazard: exhaust pipe, condensate pipe will burst tube, low pressure cylinder rising temperature for deformation, rotor (shaft seal) may be deformed.

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