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VG10D Quality Replacement for Rexroth Pgh-3X Hydraulic Gear Pump Vg Series for Injection Molding Machines (3).JPG

Quality Replacement for Rexroth Pgh-3X Hydraulic Gear Pump Vg Series for Injection Molding Machines VG00D (3).JPG

VG00D Quality Replacement for Rexroth Pgh-3X Hydraulic Gear Pump Vg Series for Injection Molding Machines (4).JPG

VG11D Quality Replacement for Rexroth Pgh-3X Hydraulic Gear Pump Vg Series for Injection Molding Machines (6).JPG

VG21D Quality Replacement for Rexroth Pgh-3X Hydraulic Gear Pump Vg Series for Injection Molding Machines (2).JPG

VG22D Quality Replacement for Rexroth Pgh-3X Hydraulic Gear Pump Vg Series for Injection Molding Machines

Introduction double pump

The double pump is composed of two single pumps assembled in series, with one oil inlet and independent oil outlet, according to the series of two pumps, can be obtained displacement: VG10D series, VG11D series, VG21D series, VG22D series.

Product Description

Product Features

The front and rear oil pumps adopt floating flower-splined coupling structure, with a unique grease formula to ensure stable performance, long life and low noise of the oil pump;

The maximum displacement can be extended to 320CC, which provides enough choice space for motor and driver selection and model selection;

The direction of oil outlet and suction outlet of oil pump is flexible and easy to install;

Any displacement combination, to meet the needs of different working conditions.

Model Designation

VG11D	-63	-40	R	E	W	-A1
Series	ml/r Flow code of shaft end pump	ml/r Flow code of cover end pump	Rotation direction	Shaft type	Sealing material	Design number
VG10D	25、32、40、50、63	8、10、13、16、 20、25	Viewed from shaft end of pump R=Right hand for clockwise L-Left hand for counter- clockwise	E=Straight key shaft R=SAE Spline shaft	W=(Buna) NBR V=FKM	A1
VG11D	25、32、40、50、63	25、32、40、50、63
VG21D	80、100、125、 145、160	25、32、40、50、63
VG22D	80、100、125、 145、160	80、100、125、 145、160

Front pump	L1	L2	Rear pump
			80		100		125		145		160
			L3	L4	L3	L4	L3	L4	L3	L4	L3	L4
80	109.5	238.5	233	437
100	114	247.5	237.5	446	242	455
125	120	259.5	243.5	458	248	467	254	479
145	124.8	269	248.3	467.5	252.8	476.5	258.8	488.5	263.5	498
160	129	277.5	252.5	476	257	485	263	497	267.8	506.5	272	515

Front pump	L1	L2	Rear pump
			25		32		40		50		63
			L3	L4	L3	L4	L3	L4	L3	L4	L3	L4
80	110	231	205	380	208	387	211.5	394	216.5	404	223.5	418
100	114.0	240	209.0	389	213	396	216	403	221	413	228	427
125	120	252	215	401	218.5	408	222	415	227	425	234	439
145	125	262	220	411	223.3	418	227	425	232	435	238.8	448.5
160	129	270	224	419	227.5	426	231	433	236	443	243	457

Front pump	L1	L2	Rear pump
			25		32		40		50		63
			L3	L4	L3	L4	L3	L4	L3	L4	L3	L4
25	73	161	161	300
32	76.5	168	164.5	307	168	314
40	80	175	168	314	171.5	321	175	328
50	85	185	173	324	176.5	331	180	338	185	348
63	92	199	180	338	183.5	345	187	352	192	362	199	376

Front pump	L1	L2	Rear pump
			08		10		13		16		20		25
			L3	L4	L3	L4	L3	L4	L3	L4	L3	L4	L3	L4
25	73	153.5	138.5	264.5	140.5	268.5	143.8	275	146.5	280.5	150.5	288.5	154.5	296.5
32	76.5	160.5	142	271.5	144	275.5	147.3	282	150	287.5	154	295.5	158	303.5
40	80	167.5	145.5	278.5	147.5	282.5	150.8	289	153.5	294.5	157.5	302.5	161.5	310.5
50	85	177.5	150.5	288.5	152.5	292.5	155.8	299	158.5	304.5	162.5	312.5	166.5	320.5
63	92	191.5	157.5	302.5	159.5	306.5	162.8	313	165.5	318.5	169.5	326.5	173.5	334.5

FAQ

Q1: Can the two pump sections of the VG double pump have different displacements (flow rates)?

A: Yes, absolutely. A key feature of our VG double pump series is the ability to combine two cartridge assemblies (pump sections) with different displacements. This flexibility allows you to create a compact, custom flow solution perfect for applications like:

● Plastic Injection Molding Machines: High flow for fast mold closing, lower flow for high-pressure injection.

● Machine Tools: High flow for rapid traverse, lower flow for precise feed motion.

Q2: How is the pressure rating handled for each section of the double pump?

A: Each pump section within the VG double pump has its own independent outlet port and is rated for its own maximum operating pressure (as listed in the technical specifications). This means:

● Circuit A can operate at its maximum rated pressure (e.g., 250 bar).

● Circuit B simultaneously operates at a different pressure (e.g., 150 bar), as determined by the load in each circuit and their respective pressure relief valves.

● The common shaft and bearings are designed to handle the combined loads from both sections.

Q3: If one pump section fails, does the entire double pump unit need to be replaced?

A: No, in most cases, the entire unit does not need to be replaced. The modular design of the VG double pump allows for individual repair or replacement of the faulty cartridge assembly (pump section). This serviceability feature:

● Reduces Downtime: You can service only the failed section.

● Lowers Lifecycle Cost: It is more economical than replacing the complete pump assembly.

We provide comprehensive support, including detailed documentation and availability of repair kits and individual cartridges to minimize your maintenance overhead.