BZW Series 1

Water Injection Pump for Coal Mine

• Max. pressure: 31.5 MPa
• Max. flow: 125 L/min

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Juneng’s BZW series water injection pump is designed to convey water, emulsions, and chemical liquids with properties similar to water. It is suitable for departments requiring high-pressure liquid equipment and are widely used in the coal mining industry.

This pump is especially suitable for applications requiring mobile operation and serves as a reliable power unit for high-pressure water jet equipment. Extended versions of the series can also be used to convey slurry, cement slurry, and other liquids with a certain viscosity.

At the pump head, one end is equipped with an overflow valve, while the other end is fitted with a throttle valve or pressure gauge and a high-pressure hose connector. This configuration enables adjustment of the system working pressure while preventing the pump from exceeding its rated pressure. The pump features safe and reliable operation, a self-circulation system, and ease of use.

Applicable standards for water injection pumps:

• MT/T 188.2-2000 Coal Mine Emulsion Pump Station – Emulsion Pump
• Q/JN001—2022 BZW Series Water Injection Pump

Specifications

Model		Unit	BZW80/12.5	BZW63/16	BZW125/8	BZW50/20	BZW31.5/31.5	BZW100/8	BZW50/16	BZW31.5/25
Rated Flow		L/min	80	63	125	50	31.5	100	50	31.5
Rated Pressure		MPa	12.5	16	8	20	31.5	8	16	25
Rated Pump Speed		strokes/min	480	480	480	480	480	480	480	480
Plunger Dia.		mm	32	28	40	25	20	35	25	20
Plunger Stroke		mm	70	70	70	70	70	70	70	70
No. of Plungers		pcs	3	3	3	3	3	3	3	3
Large Gear Teeth		pcs	77	77	77	77	77	77	77	77
Small Gear Teeth		pcs	25	25	25	25	25	25	25	25
Noise Level		dB(A)	≤86	≤86	≤86	≤86	≤86	≤86	≤86	≤86
Volumetric Eff.		%	≥94	≥93	≥94	≥93	≥91	≥94	≥93	≥92
Total Eff.		%	≥84	≥84	≥84	≥84	≥83	≥84	≥84	≥83
Dimensions		mm	1330×825×700	1330×825×700	1330×825×700	1330×825×700	1330×825×700	1330×825×700	1330×825×700	1330×825×700
Weight		kg	980	980	980	980	980	980	980	980
Motor Power	Motor model	/	YBK3-180L-4	YBK3-180L-4	YBK3-180L-4	YBK3-180L-4	YBK3-180L-4	YBK3-180M-4	YBK3-180M-4	YBK3-180M-4
	Rated power	kW	22	22	22	22	22	18.5	18.5	18.5
	Rated voltage	V	660/1140	660/1140	660/1140	660/1140	660/1140	660/1140	660/1140	660/1140
	Rated speed	r/min	1470	1470	1470	1470	1470	1470	1470	1470
	Rated eff.	%	92.6	92.6	92.6	92.6	92.6	92.6	92.6	92.6