BOS Homogenisers technician assembling crankshaft and drive gear into homogeniser housing in the workshop

Gaulin Plunger Ring Spare Parts

Gaulin Plunger Ring for APV & Gaulin Homogenizers

Looking for a reliable Gaulin plunger ring for your homogenizer?

BOS Homogenisers supplies high-quality replacement plunger rings for

Gaulin, SPX-APV and BOS high-pressure homogenizers. With more than

75 years of experience in homogenisation technology and a large global

spare parts stock, we ensure fast delivery and dependable performance

worldwide.

If you are searching for specific Gaulin plunger ring article numbers or want to verify which parts match your homogeniser, you can consult our complete spare parts overview at plunger components.

What Is a Gaulin Plunger Ring?

The Gaulin plunger ring is an essential component in the liquid end of a

Gaulin homogenizer. In high-pressure homogenization systems, plungers

move continuously under extreme pressure. The plunger ring supports

the sealing assembly and helps maintain consistent operating pressure

while minimizing wear on surrounding components.

A properly functioning Gaulin plunger ring contributes to:

  • Stable homogenisation pressure
  • Reduced internal leakage
  • Extended packing life
  • Lower maintenance frequency
  • Improved operational reliability

Gaulin Plunger Rings for High-Pressure Applications

Gaulin homogenizers are widely used in dairy, food, pharmaceutical,

chemical and biotech industries. These machines operate under high

mechanical loads and demanding production conditions. The plunger ring

must withstand pressure fluctuations, temperature variations and

continuous mechanical stress.

BOS Homogenisers supplies Gaulin plunger rings suitable for various

Gaulin models, including mono-block designs and three-piece valve

housing configurations. Each plunger ring is manufactured to meet

precise dimensional and material specifications to ensure proper fit

and long service life.

Gaulin Specialist

BOS Homogenisers specializes in spare parts for Gaulin and SPX-APV

homogenizers. Our long history in homogenisation technology allows

us to support both legacy and newer machine types.

We supply components for:

  • Gaulin mono-block homogenizers
  • APV Gaulin models
  • Rannie homogenizers
  • BOS MG-series homogenizers

With over 15,000 spare parts on stock and worldwide distribution,

BOS Homogenisers ensures fast supply of Gaulin plunger rings

and related liquid-end components.

Why Plunger Ring Quality Is Critical

In a Gaulin homogenizer, the plunger assembly operates at high

pressure and high cycle frequency. Any deviation in material quality

or dimensional accuracy of the plunger ring can directly affect:

  • Sealing performance
  • Packing wear rate
  • Machine vibration levels
  • Overall production stability

Using high-quality Gaulin plunger rings reduces the risk of

unplanned downtime and helps maintain consistent homogenisation

performance.

Designed for Long Service Life

The Gaulin plunger ring must function reliably in demanding

industrial environments. Depending on the application, machines

may process dairy products, beverages, emulsions, chemical

mixtures or pharmaceutical formulations. These products can

place different mechanical and chemical demands on internal

components.

BOS Homogenisers selects and supplies Gaulin plunger rings

that are suitable for industrial high-pressure systems, ensuring

durability and compatibility with existing machine configurations.

Available from Stock – Fast Worldwide Delivery

Production downtime is costly. That is why BOS Homogenisers

maintains an extensive spare parts inventory. Gaulin plunger rings

are available for fast shipment from our headquarters in the

Netherlands through our global distribution network.

We support customers worldwide with:

  • Rapid spare part identification
  • Technical assistance
  • International logistics support
  • Service coordination when required

Support During Maintenance & Overhaul

Replacing a Gaulin plunger ring is typically part of preventive

maintenance or a complete liquid-end overhaul. Correct part

selection is essential to ensure proper fit and long-term reliability.

Our technical specialists assist in identifying the correct Gaulin

plunger ring based on machine type, configuration and application.

This reduces the risk of ordering incorrect components and

minimizes downtime.

BOS Homogenisers – Your Gaulin Plunger Ring Supplier

BOS Homogenisers was founded in 1950 and has grown into a

specialized supplier of homogenizers, refurbished machines

and spare parts for Gaulin, SPX-APV and BOS systems.

Headquartered in the Netherlands with an international

distribution network, we support customers across multiple

industries.

If you are looking for a dependable supplier of

Gaulin plunger rings, BOS Homogenisers can deliver

the right part with technical expertise and global reach.

Contact us today to request a quotation or to receive assistance

in selecting the correct Gaulin plunger ring for your homogenizer.

Related Gaulin Spare Parts

Looking for other Gaulin homogeniser spare parts? Browse our complete range of Gaulin replacement components:

View all Gaulin spare parts →

Compatible Alternatives from Other Brands

Looking for plunger ring for other homogeniser brands? BOS Homogenisers supplies compatible replacements across all major brands:

Rannie Plunger Rings | SPX Plunger Ring | APV Plunger Ring

Technical Features

Cilinder Block
Single piece precision from forged stainless steel. Standard utilized with spring loaded plunger packings with integrated water cooling. Valves & seats can be out of the following materials according to your specifications/ requirements: Rexalloy, Tungsten carbide.

Homogenising Valve
Find the perfect valve for your product. Choose from a variety of designs and materials, such as rexalloy, tungsten carbide, ceramic or diamond coating, and our one or two stage options.

Drive End
Our unique concept offers a quiet running machine with low eccentric shaft speeds. The electric driven oil pump lubricates all bearings, allowing capacity variation between 30 – 100% under full load.


Rexalloy:
Suitable for general-purpose, wear-resistantTungsten
Carbide:
Ideal for highly abrasive environment
Ceramic: Excellent chemical resistance.
Diamond Coating: Provides exceptional hardness and lifespan.

BOS Homogenisers engineer machining and inspecting homogeniser spare parts at the workshop workbench

Our sales and Partner network

BOS Homogenisers image
28 partners

1 Alliance Fluid Handling United Kingdom Doncaster 2 Arsopi Portugal Vale de Cambra 3 Biozeen Process Tech. Switzerland/ Austria Langendorf 4 Claudio Savini & Figli Italy Milano 5 Debitron Romania Bucuresti 6 Dion Engineering Bulgaria Rousse 7 Ekso Finland Karjaa 8 FH Scandinox Denmark Tarm 9 FIPA France Pluneret 10 Frassinox Croatia Zagreb 11 GTS Spain Bergondo 12 Image Spain Madrid 13 Kuijpers Project Serve Netherlands Zelhem 14 LHS Germany Lübeck 15 Limitech Denmark Aabybro 16 Maitech Ireland Waterford 17 MP Process Poland Warsaw 18 Skala Norway Heimdal 19 Tapflo Bulgaria Sofia 20 Tapflo Croatia Matulji 21 Tapflo Hungary Szeged 22 Tapflo Kazakhstan Almaty 23 Tapflo Latvia Riga 24 Tapflo Serbia Kungälv 25 Teknoproses Turkey Ankara 26 Van der Meijden Netherlands Udenhout 27 Vantec Serbia Götene 28 Vzduchotorg Slovakia Nové M.n. Váhom

3 partners
3 partners
7 partners
5 partners

Bos Asia Ltd. APAC 
Adres: 18 Boon Lay Way, #04-112 Tradehub 21, Singapore 609966

Bos Asia Ltd. APAC 
Adres: 18 Boon Lay Way, #04-112 Tradehub 21, Singapore 609966

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