John Guest One Way Valve Connector 3/8" PF x 3/8" PF

This John Guest 3/8 inch Single Check No Return Valve allows water to pass only one way. Ideal if you have a Rotary pump machine (FloJet) connected to Bottled Water. Allows you to disconnect bottled water supply but still retain water in the pump. Otherwise pump will be sucking air when re-connected which can damage Rotary pumps. Perfect for home users caterers and other mobile locations that don't always have access to mains water.

Produced at the request of leading companies in the Drinks Dispense Industry, the Super Speedfit Acetal Single Check Valve ensures protection against reversal of flow.  

The low headloss design and fast installation time make the valve the ideal selection. The valve is designed for use with liquids, it is not suitable for air and vacuum applications.

Working Pressures and Temperatures

• 10 Bar at 20°C
• 7 Bar at 65°C intermittent hot water

Minimum temperature 1°C

Typical ‘crack open’ pressure 0.02 Bar

Safely and securely prevents backflow or back siphonage contamination risks up to Fluid Category 2

John Guest push-fit acetal single check valve provides protection from the reversal of flow or back siphonage against Fluid Category 2 risks. The low headloss design, is suitable for potable liquids , foodstuffs, intermittent hot water (up to 50°C max), water treatment and purification applications.

Fast and simple to install, John Guest valves create an instant push-fit connection and leak tight seal without the need for tools, hot works or sealing agents. The unique collet locking design firmly and securely holds the pipe in place without deforming the pipe or restricting flow. John Guest push-fit valves are corrosion resistant and fully demountable, improving system performance and reducing system downtime during maintenance. All John Guest fittings are manufactured and assembled in the UK.

Features and benefits

• Durable acetal copolymer material with nitrile O-rings
• Backflow prevention up to Fluid Category 2
• Instant push-fit connection and leak tight seal
• Connect, disconnect and reconnect in seconds without tools
• No scale build up improves performance and equipment lifespan
• Superior flow characteristicsp;l
• Suitable for potable water, foodstuffs, intermittent hot water, water treatment and purification applications (not suitable for vacuum or air)
• Compatible with LLDPE or soft metal pipe/tubing

PF = Push Fit - Speedfit

Shop John Guest

At WB.coffee we specialize in John Guest parts for Rhino SpinJet, FloJet and RO and water filtration systems. We can order any item for you and also sell tubing by the meter. 

For SpinJet you need 3/8" speedfit tube and FloJet comes with 1/4" tubing (we recommend using a reducer to use 3/8" tubes). Most water filter heads like Pentair/Everpure, BWT Flex Head, Brita Purity filter head, 3M, etc.

1. Produced in the UK - food safe (think twice about china knockoffs)
2. Replace & expand with readily available spare parts

There's no need to search high and low or incur shipping costs from distant suppliers, as we also provide our Best Price Guarantee on all John Guest products. 

Get in touch for advice on your water filtration set up!

Shop John Guest

This product is designed to fit perfectly through your mailbox 📨, making delivery a breeze! You can opt for mailbox shipping only if every item in your order can fit through. 

If you have any doubts, feel free to reach out for clarification. For larger items, we highly recommend choosing a parcel point for a more convenient experience.

More about WB.coffee 

Tip: add filters, coffee machine cleaner, descaler, tea, chocolate and coffee to your order. This way the shipping becomes more economical 🫰and sustainable 🌍, especially when shipping internationally.

Don't miss our bulk prices (staffelkorting) with the best price at 6 boxes!

Why not team up with family, colleagues, or coffee buddies for a group order? This way, you can save on shipping costs while promoting sustainability. Enjoy the advantages of our one-stop shopping experience with a best price guarantee.

Sending your package to a (Mondial Relay) parcel point might be a beneficial option for you.

Learn more

Do you crave the excitement of discovering exquisite coffee flavors and captivating aromas? Don’t miss out on our exclusive Coffee Tasting Experience @ Amsterdam Coffee Lab, where you’ll not only indulge your senses but also gain valuable insights into the world of coffee. Join us for an unforgettable journey!

Join us for a fun and informative sensory experience revolving around coffee. During this experience you will: 

• Taste washed, natural and alternative processed coffee beans 
• Explore various varietals of Arabica coffee including the famous Gesha
• Discover different coffee brewing methods outside of standard espresso
  
• Savor surprising coffee mocktails 
• Try cupping coffee: sample your coffee by slurping it from a spoon, just like an expert coffee taster would
  
• Experience how sensory elements such as aroma, size, shape, and color of the coffee cup affect flavor perception.
  

Similar to how a knowledgeable wine sommelier educates you about the wine and presents it at the perfect temperature in the right glass, our master barista and flavor expert will expertly brew your coffee while enlightening you about the entire process, the origin of the beans, varietals, the flavor notes, and much more.  Envision it as a live cooking demonstration, but dedicated entirely to the craft of coffee brewing.

Fun for your brain, taste buds and nose!

More info & booking ⬇

Choose your tasting experience

WB.coffee blends are roasted fresh on order. We roast with 100% renewable energy ☀ and 0% gas.

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• FC espresso blend - Fruity & Chocolaty
• FF espresso blend - Fruity & Floral
• VC espresso blend - Vanilla & Caramel
• CN espresso blend - Chocolaty & Nutty  (HoReCa besteseller)
• Decaf espresso blend - Caramel & Spices 
• Espresso Single Origin - limited editions

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• FJ filter blend - Fruity & Juicy (coffee lovers favorite)
• CN filter blend - Chocolaty & Nutty 
• FF filter blend - Floral & Fruity
• Decaf filter blend
• Filter Single Origin - limited editions 

Try them all with an espresso tasting set or a filter tasting set. 

Not taking any risks? Try any blend (or all of them 🏃) from our tasting menu @ Amsterdam Coffee Lab in Weesp.

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