Hydraut HS, HQ, VH Vane Pumps

Q: What data do I need to request an HS, HQ or VH pump?

State the series and size, the displacement and the code. If you are replacing an existing pump, send the nameplate code: our technical office checks displacement, flange, shaft and ports.

Official Hydraut distributors, Interfluid brand
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Warranty up to 24 months on Hydraut pumps
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7–237 cm³/revgeometric displacements HS and HQ, sizes 20, 25, 35 and 45

6.6–42.4 cm³/revgeometric displacements VH10 and VH20

207 barmax pressure HS20 with anti-wear oil (172 bar on HS25, 35 and 45)

210 barmax pressure HQ20, HQ25 and HQ35 (175 bar on HQ45)

2700 rpmmax speed HQ20 and HQ25 (codes 10–14); HS up to 1800 rpm

4500 rpmmax speed VH10 (code 2); VH up to 172 bar

Prefer to talk to a technician? +39 0331 772410 · info@interfluid.net

Hydraut HS and HQ series fixed displacement vane pump — **Hydraut HS, HQ and VH**Fixed displacement vane pumps, single and double, for industrial and mobile applications.

Hydraut, with over 15 years in the market, has built its reputation by specializing exclusively in the production of fixed displacement vane pumps. This focus has allowed them to develop products that offer a high level of quality and cost-effectiveness, ensuring customers receive unmatched value.

Our partnership with Hydraut further underscores our commitment to excellence and ensures that the pumps are readily available for shipment throughout the European market. To provide added confidence to our customers, all Hydraut pumps come with a 24-month warranty.

By choosing Hydraut, you opt for a reliable and versatile product that has earned its reputation as one of the most widely used fixed displacement vane pump models in the world.

Full datasheet on hydraut.com

Hydraut HS, HQ and VH: technical data, codes and quotes on the manufacturer's site

Interfluid is an official Hydraut distributor. The full page for the Hydraut HS, HQ and VH series (technical tables, downloadable catalogues, Rexroth cross-references and quote requests) is published and kept up to date on hydraut.com.

Open the full technical page

Up-to-date data, catalogues and the equivalent code checked by our technical team.

Open on hydraut.com

Already a registered customer? Check stock of the HS, HQ and VH series on Fluid-Hub.net, with an extra 2% discount.

Frequently asked questions

What is the difference between the Hydraut HS, HQ and VH series?

HS and HQ come in four sizes (20, 25, 35, 45) with displacements up to 237 cm³/rev. HS reaches 207 bar and 1800 rpm; HQ, designed for mobile applications, reaches 210 bar and up to 2700 rpm. VH is the series for small flows, with displacements from 6.6 to 42.4 cm³/rev and up to 172 bar.

Are Hydraut HS and HQ pumps interchangeable with Vickers V and VQ?

Yes: the HS series is interchangeable with the Vickers V series and the HQ series with the Vickers VQ series. Before supply, our technical office checks code, displacement, flange, shaft and ports with you.

What data do I need to request an HS, HQ or VH pump?

State the series and size (HS and HQ 20, 25, 35 or 45; VH10 or VH20), the displacement and the code. If you are replacing an existing pump, send the nameplate code: our technical office checks displacement, flange, shaft and ports.

Are double pumps and thru-drive pumps available?

Yes. HS and HQ are available as double pumps (HS2520 to HS4535 and HQ2520 to HQ4535) and thru-drive (HST and HQT, from size 25). VH10 and VH20 are single pumps in the catalogue; for the double VH2010 and VH2020 ask a technician.

How long is the warranty on Hydraut pumps?

The Hydraut catalogue states a 24-month warranty on the pumps.

How soon will I receive price and availability?

A technician will reply within 24 working hours.

Can't find the code you need?Send us the nameplate code of the pump to replace, even of another brand, or the displacement and pressure data: we will tell you the correct Hydraut HS, HQ or VH code and its availability.

Request price and availability

Hydraut HS vane pumps have been designed to operate effectively at medium pressure in a wide range of industrial applications. With a remarkable volumetric efficiency of over 90% and noise levels below 62dB, performance is optimized thanks to the rotor equipped with 12 vanes. The cartridge design not only ensures a long lifespan but also makes any necessary repairs extremely straightforward.

The HQ series has been specifically designed to meet the needs of mobile applications operating at medium pressure, such as those found in earth-moving machinery, construction equipment, and cranes. Featuring a 10-vane rotor, this design is optimized to provide the high speeds and pressures required for such operational contexts.

The VH series pumps are often chosen for applications that require small flow rates and medium pressure. These fixed displacement pumps are available both in a single outlet version, in sizes VH10 and VH20, and in a double outlet version, in sizes VH2010 and VH2020.

Technical data by series

Hydraut makes only fixed displacement vane pumps. HS and VH are the industrial series, HQ is the series for medium-pressure mobile applications. The code is the nominal flow in GPM at 1200 rpm and 7 bar; displacement is geometric.

Series	Codes (GPM)	Displacement (cm³/rev)	Max pressure (bar)*	Max speed (rpm)	Versions
HS20	2–14	7.5–45	207 (138 code 2 and 14; 159 code 12)	1800	Single, double
HS25	10–21	32.5–67	172	1800	Single, double, HST thru-drive
HS35	21–45	67–140	172	1800	Single, double, HST thru-drive
HS45	42–75	138–237	172 (138 code 75)	1800	Single, double, HST thru-drive
HQ20	2–14	7–45	210 (160 code 12; 140 code 14)	2700	Single, double
HQ25	10–21	32.5–65	210	2700 (code 10–14); 2500 (code 15–21)	Single, double, HQT thru-drive
HQ35	21–45	64–140	210	2500 (code 21–32); 2400 (code 35–45)	Single, double, HQT thru-drive
HQ45	42–75	134–237	175 (140 code 75)	2200	Single, double, HQT thru-drive
VH10	2–7	6.6–22.8	172 (152 code 6; 138 code 7)	4500 (code 2) – 2800 (code 7)	Single
VH20	6–13	19.5–42.4	172 (152 code 12 and 13)	3400 (code 6) – 2400 (code 12 and 13)	Single

Double pump	Flow P1 (GPM)	Flow P2 (GPM)
HS2520	10, 12, 14, 15, 17, 19, 21	2, 5, 8, 9, 11, 12, 14
HS3520	21, 25, 30, 32, 35, 38, 45	2, 5, 8, 9, 11, 12, 14
HS3525	21, 25, 30, 32, 35, 38, 45	10, 12, 14, 15, 17, 19, 21
HS4520	42, 45, 50, 60, 66, 75	2, 5, 8, 9, 11, 12, 14
HS4525	42, 45, 50, 60, 66, 75	10, 12, 14, 15, 17, 19, 21
HS4535	42, 45, 50, 60, 66, 75	21, 25, 30, 35, 38, 45
HQ2520	10, 12, 14, 15, 17, 19, 21	2–12 and 14
HQ3520	21, 25, 30, 32, 35, 38, 45	2–12 and 14
HQ3525	21, 25, 30, 32, 35, 38, 45	10, 12, 14, 15, 17, 19, 21
HQ4520	42, 45, 50, 57, 60, 66, 75	2–12 and 14
HQ4525	42, 45, 50, 57, 60, 66, 75	10, 12, 14, 15, 17, 19, 21
HQ4535	42, 45, 50, 57, 60, 66, 75	21, 25, 30, 32, 35, 38, 45

* With anti-wear oil or phosphate ester. Minimum speed HS: 600 rpm. Source: Hydraut HS, HQ and VH catalogue. The double versions VH2010 and VH2020 are not in the catalogue: ask us for the data.

Configuration options

Right-hand (D) or left-hand (L) rotation seen from the shaft end; VH: R or L
Shafts: keyed (1), heavy-duty keyed HD (86, HS and HQ from size 25) or splined (11; 151 on HS20 and HQ20)
Ports can be rotated to four positions (A, B, C, D) relative to the inlet port
HST and HQT versions (from size 25) with SAE A, B or C rear flange for multiple pumps
Replacement cartridges for the HQ series (20HQ, 25HQ, 35HQ, 45HQ)

Permitted fluids and limits

Anti-wear oil or phosphate ester F3: pressure and speed values in the table
HS with water glycol: up to 159 bar and 1500 rpm; with water-oil emulsion: up to 69 bar and 1200 rpm
VH with water glycol: up to 124 bar (109 bar from code 11) and 1800 rpm
VH with water-oil emulsion: 93–109 bar depending on code, up to 1800 rpm
The HQ value for fluids other than oil is not given in the catalogue

Single pumps

Series	Average stock	Discover online availability
from HS20 to HS45	✅ Usually available
from HQ20 to HQ45	✅ Usually available
VH10 - VH20	✅ Usually available

Double pumps

Series	Average stock	Discover online availability
from HS2520 to HS4535	✅ Usually available
from HQ2520 to HQ4535	✅ Usually available
VH2010 - VH2020	✅ Usually available

Thru-Drive pumps

Series	Average stock	Discover online availability
from HS25T to HS45T	✅ Usually available	⌛ Soon online
from HQ25T to HQ45T	✅ Usually available	⌛ Soon online

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Hydraut HS, HQ and VH: technical data, codes and quotes on the manufacturer's site

Frequently asked questions