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Magnetic pump - MDH Series
TIME：2024-01-23 Author：admin Views：
High resistance to dry running丨corrosion resistance
PRODUCT FEATURES:
● Dry running is possible with a pin point contact system
● Excellent corrosion resistance
● Excellent durability
● Simple structure
● Pin-point contact system
CONSTRUCTION
PARTS LIST
(1) Series: MDH - Casing material - GFRPP
MDH -F:Casing material - CFRETFE
(2) Suction×Discharge/Motor output:
400 - 40(G1 1/2) X 40(G1 1/2)/0.4kW
401 - 40(G1 1/2) X 40(G1 1/2) /0.75kW
422 - 50(G2)X40(G1 1/2)/1.5kW
423 - 50(G2)X 40(G1 1/2)/2.2kW
425 - 50(G2)X40(G1 1/2)/3.7kW
(3) Material of parts
MDH(Bearing/Spindle/O ring)
CV: Carbon/Alumina ceramic/FKM
RV: PTFE/Alumina ceramic/FKM
FE: Carbon/High purity alumina ceramic/EPDM
MDH -F(Bearing/Spindle/O ring)
CFV: High-density carbon/High-purity alumina ceramic/FKM
AAV: Alumina ceramic /Alumina ceramic/FKM(For 400 and 401 types)
:High-purity alumina ceramic /High-purity alumina ceramic/FKM(For 422 and 423 types)
(4) Impeller symbol
MDH: 5 -50Hz 6 - 60Hz
MDH -F: T,V,W - For 50Hz X,Y,Z - For 60Hz
(5) Type of motor: No symbol - TEFC, indoor type
C - TEFC,outdoor type
A -Increased safety type(422 and 423 types do not have increased safety types)
(6) Pin point contact system: D - Dry running operation for one hour is permissible.
E -Dry run is not possible.
This is MDH of Chemical pumps,the model numbers are as below:
MDH-440 , MDH-441 , MDH-422 , MDH-423 , MDH-425 , MDH-F440 , MDH-F441 , MDH-F422 , MDH-F423
SPECIFICATION
PERFORMANCE CURVES
DIMENSION UMIT:MM
While placing your order...
Please kindly provide us the following information.
1. Chemical: Name/Concentration/Temperature/Specific gravity/Viscosity.
2. Capacity needed:__________L/min
3. Head needed:__________M
4. Power: Voltage/Frequency
PRODUCT FEATURES:
● Dry running is possible with a pin point contact system
Up to one hour of continuous dry running is possible due to the pin point contact system which minimizes the heat generated by bearing surfaces during dry running.
● Excellent corrosion resistance
The casings, impeller assembly and magnet capsule of MDH pump are made of polypropylene and those of MDH-F are made of fluororesin. Other wet-end parts are made of highly corrosion resistant materials such as carbon, ceramics and the like. The pumps can handle most types of chemicals including acids and alkalies.
● Excellent durability
The resin parts for MDH are reinforced with glass fiber and MDH-F is reinforced with carbon fiber for the purpose of enhancing durability. In addition, sufficient consideration was given to the mechanical strength and the safety of the spindle.
● Simple structure
The pump unit's simple structure consists of only a few parts. The assembly and disassembly procedures for maintenance purposes are very easy and simple.
● Pin-point contact system
In a no-thrust condition due to dry run, only the impeller thrust surface and spindle fore edge come in contact.
The magnet capsule never touches the rear casing.
This "pin point" contact between impeller and spindle thrust surfaces significantly minimizes friction, and therefore heat generation.
CONSTRUCTION
PARTS LIST
(1) Series: MDH - Casing material - GFRPP
MDH -F:Casing material - CFRETFE
(2) Suction×Discharge/Motor output:
400 - 40(G1 1/2) X 40(G1 1/2)/0.4kW
401 - 40(G1 1/2) X 40(G1 1/2) /0.75kW
422 - 50(G2)X40(G1 1/2)/1.5kW
423 - 50(G2)X 40(G1 1/2)/2.2kW
425 - 50(G2)X40(G1 1/2)/3.7kW
(3) Material of parts
MDH(Bearing/Spindle/O ring)
CV: Carbon/Alumina ceramic/FKM
RV: PTFE/Alumina ceramic/FKM
FE: Carbon/High purity alumina ceramic/EPDM
MDH -F(Bearing/Spindle/O ring)
CFV: High-density carbon/High-purity alumina ceramic/FKM
AAV: Alumina ceramic /Alumina ceramic/FKM(For 400 and 401 types)
:High-purity alumina ceramic /High-purity alumina ceramic/FKM(For 422 and 423 types)
(4) Impeller symbol
MDH: 5 -50Hz 6 - 60Hz
MDH -F: T,V,W - For 50Hz X,Y,Z - For 60Hz
(5) Type of motor: No symbol - TEFC, indoor type
C - TEFC,outdoor type
A -Increased safety type(422 and 423 types do not have increased safety types)
(6) Pin point contact system: D - Dry running operation for one hour is permissible.
E -Dry run is not possible.
This is MDH of Chemical pumps,the model numbers are as below:
MDH-440 , MDH-441 , MDH-422 , MDH-423 , MDH-425 , MDH-F440 , MDH-F441 , MDH-F422 , MDH-F423
SPECIFICATION
PERFORMANCE CURVES
DIMENSION UMIT:MM
While placing your order...
Please kindly provide us the following information.
1. Chemical: Name/Concentration/Temperature/Specific gravity/Viscosity.
2. Capacity needed:__________L/min
3. Head needed:__________M
4. Power: Voltage/Frequency
