VH-80S External Helical Gear Pump

Name: VIMPO PUMPS VH-80S External Helical Gear Pump
Brand: VIMPO PUMPS

VH-80S is a VIMPO PUMPS external helical gear pump made by Vimpo Makine A.Ş. in Ankara, Türkiye. It has a displacement of 1.040 l/rev, DN80/DN80 ports, a differential pressure up to 15 bar and a temperature up to 230 °C. It operates from 10 to 55,000 cSt.

Series: VH series. VIMPO PUMPS is a brand of Vimpo Makine A.Ş., founded in 1997 in Ankara.

VH-80S datasheet (PDF, English)VH-80S teknik föy (PDF, Türkçe)Request a quote

VIMPO PUMPS VH-80S external helical gear pump — representative VH series photo

This photo is representative — a VH series pump; it is not an exact image of this model.

1.040 l/rev

Displacement

15 bar

Diff. pressure

230 °C

Temperature

55,000 cSt

Viscosity

Operating principle and construction

VH-80S is a positive displacement transfer pump working on the external helical gear principle. Two helical gears in mesh carry the fluid along the casing wall from the suction to the discharge side; the continuous, overlapping tooth engagement gives a smooth, pulsation-free flow. The heavy-duty casing runs at low speed (up to 461 rpm) behind a helical gearmotor and is fully jacketed as standard, which makes the VH series the reference pump for hot, viscous products such as bitumen and heavy fuel oil. Flow is proportional to speed and independent of pressure.

Features

Low speed operation behind a helical gearmotor
pulsation-free, quiet transfer with low wear

Thermal oil heating jacket on casing and cover
standard on the whole VH series

Bi-directional
reversing the motor swaps suction and discharge

Self-priming
suction lift up to 3 m at sea level

Bearings lubricated by the pumped fluid
no separate lubrication circuit

Optional external ball-bearing construction (DB) and drive adapter (DBT)
see MODEL CODE

Suction and discharge ports opposed
the pump goes straight into the line

VH-80S technical data

Property	VH-80S
Displacement (q)	1.040 l/rev
Suction / discharge	DN80 / DN80
Connection	Flange EN 1092-2 PN25 (standard) · ANSI 150/300 optional
Differential pressure (Δp)	1 – 15 bar
Temperature	0 – 230 °C
Viscosity	10 – 55,000 cSt
Speed range	90 – 461 rpm
Port arrangement	180° — opposed — in-line
Heating	thermal oil jacket (T) — standard
Shaft seal	gland packing (GP) — standard · mechanical seal (MS)
By-pass	integrated by-pass valve — option (BP)
ATEX	II 1/2G Ex h IIB T4 Ga/Gb — zones 0 and 1, liquid ≤ 130 °C

Values from the current datasheet (TDS-VH80S-EN-R3). The duty point is confirmed with the order acknowledgement.

Applications

Bitumen and emulsion
Bitumen, PMB and oxidised bitumen transfer and circulation; Tanker and rail car loading and unloading lines; Asphalt plants and bitumen terminals

Fuel and thermal oil
Heavy fuel oil — storage, service and burner feed; Thermal oil heating circuits

Chemicals, paints, resins
Resins, polymers, adhesives and hot-melt

Application images are representative.

VH-80S in the series

Model	Displacement (q)	Differential pressure (Δp)	Speed range
VH-65	1.040 l/rev	1 – 15 bar	90 – 461 rpm
VH-80	2.200 l/rev	1 – 15 bar	90 – 461 rpm
VH-80S · this page	1.040 l/rev	1 – 15 bar	90 – 461 rpm
VH-100	2.200 l/rev	1 – 15 bar	90 – 461 rpm

Datasheet

VH-80S datasheet: properties, model code, dimensions, materials and selection tables.

VH-80S datasheet (PDF, English)VH-80S teknik föy (PDF, Türkçe)

Related products and notes

Other models in the series: VH-65, VH-80, VH-100. Related notes: why bitumen needs a gear pump, by-pass valve, heating jacket. Application: bitumen and asphalt. Selection: find pump.

Frequently asked questions

Which liquids does VH-80S pump?

VH-80S pumps liquids from 10 to 55,000 cSt up to 230 °C. Applications: Bitumen, PMB and oxidised bitumen transfer and circulation; Heavy fuel oil — storage, service and burner feed; Thermal oil heating circuits; Resins, polymers, adhesives and hot-melt.

What is the maximum differential pressure of VH-80S?

15 bar in the standard version.

How do I calculate the flow of VH-80S?

Theoretical flow = displacement × speed. For VH-80S, q = 1.040 l/rev. When viscosity increases, the permitted maximum speed decreases. Use the capacity table in the datasheet and our note on viscosity and speed to select the pump.

Is an ATEX version of VH-80S available?

Yes. The marking is II 1/2G Ex h IIB T4 Ga/Gb, zones 0 and 1. The maximum liquid temperature is 130 °C. Details: ATEX gear pump note.

Is VH-80S available with a heating jacket?

Yes. For liquids that become solid when cold, such as bitumen, the casing is heated. The options are in the technical table. Comparison: thermal oil or electric.

Where is the VH-80S datasheet?

Download the PDF from the Datasheet section on this page (English and Turkish).

How do I get a quotation for VH-80S?

Send the liquid, temperature, viscosity, flow and pressure by WhatsApp or the contact form. We send a quotation with the datasheet.

Request a quotation

Write the liquid, temperature, viscosity, flow and pressure. We reply with the datasheet and a quotation.

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VH-80SExternal Helical Gear Pump