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Hongkong USR Industries Group Corp.Ltd
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(W)MD Series
Magnetic Drive Pumps

	(W)MD Instruction Manual (Condensed)

Use of impeller trim allows smaller package and selection of more efficient pumps. High-efficiency closed impellers are a separate component that mates to the magnet capsule. This precise trim, along with an optimized bearing system, provides an extremely long service life.

Extraordinarily high efficiencies make WMD & MD the clear choice in almost every process, recirculation or transfer application. Choose standard alumina ceramic bearing materials and polypropylene, or optional SiC (silicon carbide) and ETFE (fluoropolymer) for your most aggressive or highest purity requirement.

Do you require compact, quiet, highly efficient pumps for your Laser, Chiller or Blood Analyzer Applications? USR pumps are compact, offer higher pressure, AND last longer than any traditional offerings.

Motor Matching - Offering more motor/pump configurations than any other manufacturer easily allows tailored pump applications. Premium, high efficiency motors are used throughout the line. Totally enclosed, permanent split capacitor motors are compact, cool and economical. Tolerance to voltage variation without overheating and 50/60 Hz operation allows the product to be used in a worldwide market. PSC or shaded pole AC motors are standard. Brushed and brushless motors are available for DC applications.

Model	Port size(mm)		MOTOR		Max. flow rate (l/min)	Max.head (m)	Max. specific gravity of liquid	Motor		Mass (kg)
Model	Suction Port	Disharge Port	Suction/ Discharge	Union (see P13)	Max. flow rate (l/min)	Max.head (m)	Max. specific gravity of liquid	Power source voltage(V)	Rated output(W)	Mass (kg)
MD-15R(M)	14	14	G3/4	13	16/19	2.4/3.4	1.3	220/240 Single-phase	10	1.6
MD-20R(M0	18	18	G3/4	16	27/31	3.1/4.1	1.1		20	2.0
MD-20RX(M)	26	26	G1	20	46/52	1.8/2.5	1.3
MD-20RZ(M)	18	18	G3/4	13	10/11	4.9/6.9	1.1
MD-30R(M)	20	20	G3/4	16	32/38	3.8/5.4	1.3		45	4.0
MD-30RX(M)	26	26	G1	20	62/72	2.9/4.1	1.1
MD-30RZ(M)	18	18	G3/4	13	15/17	8/11	1.0
MD-40R(M)	20	20	G3/4	16	45/52	4.6/6.5	1.1		65	3.9
MD-40RX(M)	26	26	G1	20	75/85	3.3/4.7	1.1
MD-40RZ(M)	22	22	G3/4	16	22/22	10/13.5	1.1
MD-40RZ-5(M)	22	22	G3/4	16	12/-	11.5/-	1.1
MD-55R(M)	26	26	G1	20	60/70	5.6/8.2	1.2		90	5.4
MD-55R-5(M)	26	26	G1	20	70/-	8.2/-	1.2		90	5.4
MD-70R(M)	26	26	G1	20	86/97	6.7/9.7	1.0	220/240 Single-phase or 220/380 3-phase 400/440 3-phase	150/180	6.0
MD-70RZ(M)	20	20	G3/4	16	40/43	14.3/20.3	1.0		180/216	6.0
MD-100R(M)	26	26	G1	20	120/135	8.6/11.9	1.2		225/265	8.5
MD-100R-5(M)	26	26	G1	20	135/-	11.7/-	1.1		225/265	8.5

Note:
1. Pump performance data is based on pumping clean water at amb. temp.
2. The maximum flow rate is at 0 discharge head.
3. Maximum viscosity of liquid: 0.03 Pa•s (for a specific gravity of 1.0)
4. Permissible liquid temperature: 0~80°C (When USR option union is used, the liquid temp. is limited to 0~55°C. Also, the permissible temperature may differ depending upon the type of liquid and operating conditions.)

5. The maximum specific gravity of the liquid is the value at
max. flow rate.
The value varies depending on the flow rate, ambient
temperature, viscosity of liquid, etc.
6. Motor: Single-phase capacitor-run induction motor or 3-
phase induction motor.
* Built-in thermal protector
A thermal protector is built in the motor. The device
automatically stops motor operation when the motor is
overheated. (The motor starts again the operation when
the temperature falls to normal.)

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USR Industries CO.,LTD.
Xitai Road Banzhong Industry Zone, Fuan City, Fujian, China
Tel:+86 593 6578803 Fax:+86 593 6578802
E-mail:info@USRpumps.com