Order Online or call +44 (0)1394 462 120

Amarinth logo

API 610 oil & gas process pumps

API 610 11th edition VS4 Sulphur vertical sump pumps


Amarinth API 610 VS4 11th edition Sulphur vertical sump pumps are designed and manufactured for a number of Molten Sulphur applications including production, transfer, / storage, loading and unloading. The pumps are typically found in the utility areas of oil & gas production and refineries, though they can be used for other applications. Each pump is designed to fit sump depths of up to 6.0m as standard, although bespoke designs (poss > 6m ) of up to 10m have been supplied. Sulphur pumps are independently verified, fully CE compliant including ATEX.

API 610 VS4 11th edition heavy duty oil & gas Sulphur vertical sump pump designed & manufactured by Amarinth.

Using modern computer aided design software the pumps are specifically designed as a heavy duty, minimal wear, long life pump which has be designed in a modular way, with a number of options available, to ensure full compliance to the customers exact requirements and specifications. Finite element analysis is also used to reduce resonance and vibration found in some manufacturer's designs of this type of pump. Particular attention has been focused on reducing maintenance times for these pumps which is inherently regularly required for this duty. Our unique innovative steam jacket "jumper" system is one of the features which has been created to speed up disassembly and reassembly. Other features include eliminating temperature variants across the pump by using full length steam jacketing on the columns & discharge pipe work, along with including internal components specially designed to reduce the retention of liquid sulphur when the pump is removed for maintenance, where any residual sulphur begins to solidify around these components adding further time to the maintenance task.

The pumps can be fitted with a variety of proprietary components (i.e. seals (including gas running), motors (IEC & NEMA) & couplings) from all the major manufacturers to cater for customers site preferences. Double mechanical seal arrangements can be fitted with a seal support system attached. This can be supplied by any one of the major manufacturer's system's.

To complete the package a full range of standard material options from Carbon Steel and stainless steel, to Super duplex are available to match your process fluid. NACE compliant and other materials are also available. Standard documentation packs including manufacturing data books, material certification, installation & operating manuals are available to suit the application. Performance testing to API 610 / ISO 13709 and various NDE (non destructive examination) & NDT (non destructive testing) options are offered to ensure full compliance to our customer's specifications. Alternative bespoke packages can be tailored to fit your exact requirements.

General description
A range of vertical long shaft single stage centrifugal end suction sump pumps manufactured in a variety of alloys. Designed to suit customer requirements with lengths available up to 6m sump depth.
Heavy duty modular design maximising flexibility to suit customerís application.
Design methodology
Advanced computer techniques including 3D modelling, FEA & CFD
Design standards
  • API 610 11th : 2010, ISO 13709 : 2010
  • ATEX EC-Directive 94/9/EC
Design pressure rating
  • 20 bar g @ 38°C (pressure containing parts)
  • 6.7 bar g @ 38°C (steam jacketing)
Operating temperature
-40°C to 160°C (standard construction)
Design temperature
200°C (standard construction)
Performance envelope
Flow rate
Up to 715m³/h
Differential head
Up to 87m
Up to 1750 rpm
Support plate configurations & sizes
  • ANSI mount circular flange: 20" & 24"
  • ASME B16.47 Series A circular flange: 30" to 42"
  • ASME B16.47 Series B circular flange: 30" to 42"
  • Circular plate: 20" to 42"
  • Rectangular plate: 800mm x 550mm to 1450mm x 1000mm
Pump sump depth
  • Min standard pump length: 0.65m
  • Max standard pump length: 6.0m
Pump hydraulic frame sizes
040x025x225 to 200x150x325
Design life
20 years (3 years uninterrupted operation)


Click on one of the menu options at the top left of the page to find more details about our API 610 VS4 Sulphur vertical sump pumps.