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Wilden Air Operated Diaphragm Pumps

Pump & Valve are the sole New Zealand representative for Wilden Air Operated Diaphragm Pumps. This means we offer full factory support and only supply genuine OEM parts directly from Wilden, that you can trust!


Pump & Valve Specialties are privileged to be the sole New Zealand representative for Wilden Air Operated Diaphragm Pumps. This means we offer full factory support and only supply genuine OEM parts directly from Wilden, that you can trust!

WILDEN Air Operated Diaphragm pumps are widely respected as the most versatile pump on the market today. Air powered, these pumps are able to pump thick and thin liquids, solids laden and abrasive liquids and can dry run, dead-head and work submerged or dry mounted.

Who are Wilden? A bit of a backstory… In 1955, one man revolutionized the pumping industry when he invented the air-operated double diaphragm (AODD) pump.
Wilden Pump & Engineering Company began in a walnut grove in San Bernardino County, CA, through the genius of this man – Jim Wilden.

The epiphany began in 1955 when a large water pipe ruptured several feet below ground, flooding a shop at a steel factory. Amid the bedlam, a cool-headed foreman surveyed the inundated workshop and drenched workmen and yelled out to “Slim,” Jim’s nickname, “Hey, Slim, you would make a million dollars if you could invent a pump to get this stuff out of here.” And thus history was set in motion, changing the landscape of industrial and commercial processes forever.
Jim went on to invent the air-operated double-diaphragm (AODD) pump based on the need to create a pump tough enough to handle the job of pumping water, slurry and any other finely-divided substances, such as cement. His engineering genius developed a new type of pump that had the right air valve and diaphragms needed to meet the stringent demands of the mining and heavy-construction industries. After years of trial and error, Jim Wilden began successfully manufacturing and selling M16 and M14 model AODD pumps.

Since that time, Wilden®, a PSG Dover Company, has forged a long-lasting legacy as the global leader in AODD pump technology. Thanks to a dedication to pioneering new innovations while providing unparalleled excellence in customer satisfaction, Wilden’s family of AODD pumps is unmatched in reliability, durability, efficiency, and performance.

Wilden’s commitment to the customer is undoubtedly the reason why they are the market leaders in the industry. They listen to the comments of engineers, maintenance personnel, and end users to develop general and specialized products to meet your needs.

Remember: there are many AODD pumps on the market that strive to be Wilden – but only one market leader.
Wilden is constantly in the pursuit of excellence, always innovating and designing new products.

Our team are regularly in touch with Wilden, whether it be on video call or face to face, being trained directly from the Wilden factory with their latest pumps & technology. Being the sole New Zealand agent, this is our privilege here – representing Wilden in New Zealand and the Pacific Islands.

Pump & Valve are privileged to be the sole New Zealand representative for Wilden Air Operated Diaphragm Pumps. This means we offer full factory support and only supply genuine OEM parts directly from Wilden, that you can trust!  

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  • Can dry run
  • Dead head (will simply stop pumping and wait for the pressure to be released)
  • Pump liquids as thick as hair paste (100,000 cPs plus)
  • Explosion proof versions available that are suitable for pumping petrol and alcohols
  • Compatible with almost any liquid as a wide range of pump body materials are available. These are:
    •  Polypropylene
    • PVDF (Kynar)
    • Stainless steel
    • Hastelloy
    • Aluminium
    • Cast iron
  • Elastomers available are:
    • Buna (Nitrile)
    • Viton
    • Teflon (PTFE)
    • Wilflex (a thermoplastic elastomer)
    • Saniflex (a food grade thermoplastic elastomer)
    • EPDM
    • Neoprene

There pumps are used for pumping the following liquids:

  • Adblue
  • Aluminium sulphate
  • Beer
  • Beverages
  • Bitumen
  • Blood
  • Caustic
  • Chemicals
  • China clay slurry
  • Chlorinated water
  • Chocolate
  • Chocolate
  • Cider
  • Citric acid
  • Condiments
  • Cream
  • Cyanide
  • Demin / demineralised water
  • Fertiliser
  • Flocculants
  • Fluorine
  • Food grade oils
  • Fruit juice
  • Fruit pulps
  • Heavy fuel oil
  • Honey
  • Hydrochloric acid
  • Hydrofluoric Acid
  • Hydrofluosilicic Acid
  • Hydrogen Peroxide
  • Hydroseeding
  • Ink
  • Latex
  • Lime slurry
  • Methylethylketone (MEK)
  • Milk
  • Molasses
  • Nitric acid
  • Oils & hydrocarbons
  • Olive oil
  • Orange juice
  • Phosphoric acid
  • Polyaluminium Chloride (PAC /
  • Alum)
  • Polymers
  • Powder
  • Resin
  • Salad dressing
  • Sauces
  • Sodium Hypochlorite
  • Soy Lethacin
  • Soya bean oil
  • Starch
  • Sugar Syrups
  • Sulphuric acid
  • Sunflower seed oil
  • Talcum slurry (talc)
  • Tallow
  • Toluene Diisocyanate (TDI)
  • Tomato sauce
  • Urea
  • Waste oil
  • Wastewater

25mm (1″) Pumps – Clamped

A2 Metal Pump EOM Original

A2 Plastic Pump EOM Original

P2 Metal Pump EOM Original

P2R Plastic Pump EOM Original

PX2 Sanitary Pump EOM Original

T2 Metal Pump EOM Original

25mm (1″) Pumps – Bolted

A200 Plastic Pump EOM Advanced

H200 Metal Pump EOM Advanced

P200 Metal Pump EOM Advanced

P200 Plastic Pump EOM Advanced

PX200 Metal Pump EOM Advanced

38mm (1 1/2″) Pumps – Clamped

P4-PX4 Metal Pump EOM Original

PS4 Metal Pump EOM Original

PS4 Plastic Pump EOM Original

PX4 Sanitary Pump EOM Original

T4 Metal Pump EOM Original

38mm (1 1/2″) Pumps – Bolted

HS400S Metal Pump EOM Advanced

HX400S Metal Pump EOM Advanced

P400-PX400 Metal Pump EOM Advanced

P400-PX400 Plastic Pump EOM Advanced

PS400 Metal Pump EOM Advanced

PS400 Plastic Pump EOM Advanced

50mm (2″) Pumps – Clamped

P8-PX8 Metal Pump EOM Original

P8-PX8 Plastic Pump EOM Original

PS8 Metal Pump EOM Original

PX8 Sanitary Pump EOM Original

T8 Metal Pump EOM Original

50mm (2″) Pumps – Bolted

H800 Metal Pump EOM Advanced

P800-PX800 Metal Pump EOM Advanced

P800-PX800 Plastic Pump EOM Advanced

PS800 Metal Pump EOM Advanced

PS800 Plastic Pump EOM Advanced

76mm (3″) Pumps – Clamped

PS15 Metal Pump EOM Original

PS15 Sanitary Pump EOM Original

PX15 Metal Pump EOM Original

PX15 Sanitary Pump EOM Original

T15 Metal Pump EOM Original

76mm (3″) Pumps – Bolted

H1500 Sanitary Pump EOM Advanced

P1500 Plastic Pump EOM Advanced

PS1500 Metal Pump EOM Advanced

PS1500 Plastic Pump EOM Advanced

PX1500 Metal Pump EOM Advanced

100mm (4″) Pumps – Clamped

PS20 Metal Pump EOM Original

PX20 Metal Pump EOM Original

T20 Metal Pump EOM Original

Brahma Pumps – Bolted

PS810 Metal Pump EOM Advanced

PS1510 Metal Pump EOM Advanced

PX810 Metal Pump EOM Advanced

PX1510 Metal Pump EOM Advanced

T810 Metal Pump EOM Advanced

T1510 Metal Pump EOM Advanced

Stallion Pumps – Clamped

PS Stallion Pump EOM Original

PX Stallion Pump EOM Original

Don’t see the technical document you’re looking for?
Ask a question in the Chat function at the bottom-left of our website.

Alternatively, send us an email or give our team a call – | 0800 WILDEN (945 336)


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