Magnetic Pumps for Industrial Use

• Max.Head: 30-50m
• Max.Capacity: >400 L/min
• Driving Type: Magnetic
• Impeller Number: Single-Stage Pump
• Working Pressure: Low Pressure Pump
• Influent Type of Impeller: Single Suction Pump
• Position of Pump Shaft: Horizontal Pump
• Pump Casing Combined: Horizontal Split Pumps
• Mounting Height: Since Irrigation Centrifugal Pumps
• Impeller: Closed
• Usage: for High Specific Gravity Solutions
• Transport Package: Carton and Pallet
• Trademark: DJ pump
• Origin: China
• HS Code: 8413709940
• Production Capacity: 50000 Units/Year

Product Description

What is the effect of viscosity on pump performance?
Viscosity is the main criteria which determine whether the application requires a centrifugal pump or a positive displacement pump. Centrifugal pumps can pump viscous fluids however the performance is adversely affected. If your fluid is over 2000 SSU in viscosity consider using a positive displacement pump.
What is the shut off head in a centrifugal pump?
The shut-off head, this is the maximum head that the pump can achieve and occurs at zero flow. The pump will be noisy and vibrate excessively at this point. The pump will consume the least amount of power at this point. Do not let a centrifugal pump operate for long periods of time at zero flow. The friction of the impeller will make water will boil, the mechanical seal will "burn", all plastic components will melt and water will possibly leak into the motor windings In residential systems, the pressure switch shuts the pump down when the pressure is high which means there is low or no flow.
What is the Best Efficiency Point (BEP)?
The best efficiency point B.E.P. this is the point at which the pump is the most efficient and operates with the least vibration and noise. This is often the point for which pumps are rated and which is indicated on the nameplate. The pump will consume the power corresponding to its B.E.P. rating at this point.
What is the maximum flow point?
It is the point, on the right side of the curve, past which the pump may not operated. The pump will be noisy and vibrate excessively at this point. The pump will consume the maximum amount of power at this point.
What are the three different types of pump curves?
They are normal curves, flat curves and drooping curves. In a normal curve the head decreases rapidly as flow increases. Ina flat curve the head decreases very slowly as flow increases. The drooping curve is similar to the normal curve except that the head raises then drops as it gets near to the shut-off head point.
Are there any advantages to using a pump with a drooping curve?
The drooping curve shape is to be avoided because it is possible for the pump to hunt between two operating points which both satisfy the head requirement of the system. This is known to happen when two pumps are in parallel, when the second pump is started it may fail to get to the operating point or hunt between two points that are at equal head. Thankfully not to many pumps have this characteristic.
When is a flat curve desirable?
A flat curve is sometimes desirable since a change in flow only causes a small change in head as in a sprinkler systems. As more sprinklers are turned on the head will tend to decrease but because the curve is flat the head will decrease only a small amount which means that the pressure at the sprinkler will drop only a small amount, thereby keeping the water velocity high at the sprinkler outlet.
Are normal curves steep?
The normal curve can be more or less steep. A steep curve can be desirable from a control point of view since a small change in flow will result in a large pressure drop. The steepness of the curve depends on the number of vanes and the specific speed.

 

 

 

 

TYPE			Inlet Size	Outlet Size	Max flow(LPM)	Max head(M)	Power(kw)
PP	PVDF	PPS
DJ0.5PPE	DJ0.5KV	DJ0.5PPS	3/4"	3/4"	50	5	0.065
DJ1PPE	DJ1KV	DJ1PPS	1''	1''	90	7	0.15
DJ2PPE	DJ2KV	DJ2PPS	1''	1''	120	9	0.37
DJ2HPPE	DJ2HKV	DJ2HPPS	1"	1"	160	15	0.55
DJ3PPE	DJ3KV	DJ3PPS	1-1/2"	1-1/2"	240	15	0.75
DJ3HPPE	DJ3HKV	DJ3HPPS	1-1/2"	1-1/2"	300	17	0.75
DJ4PPE	DJ4KV	DJ4PPS	1-1/2"	1-1/2"	350	17	1.1
DJ5PPE	DJ5KV	DJ5PPS	2"	1-1/2"	400	23	1.5
DJ6PPE	DJ6KV	DJ6PPS	2"	1-1/2"	500	26	2.2
DJ7PPE	DJ7KV	DJ7PPS	2- 1/2"	2"	800	31	3.75
DJ8PPE	DJ8KV	DJ8PPS	2- 1/2"	2"	980	35	5.5
DJ9PPE	DJ9KV	DJ9PPS	2- 1/2"	2"	1000	38	7.5