Clack Non-Return In-Line Valve Swing One-way Check Valves

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  • Invena Clack Non-Return In-Line Valve Swing One-way Check Valves
  • Invena Clack Non-Return In-Line Valve Swing One-way Check Valves
  • Invena Clack Non-Return In-Line Valve Swing One-way Check Valves


The swing check type non return check valve prevents water from returning to the source after being pumped away. It's swing type valve.

- Material: Brass;
- Size: 1/2", 3/4", 1", 5/4" (1 1/4"), 6/4" (1 1/2") or 2" BSP;
- Thread type: Female x Female;
- Max. Static Pressure: 1,0 MPa (10 bar);
- Max. Working Temperature: +120C.

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Warranty Information

All products supplied are covered by the terms and conditions of the Manufacturer's Warranty for a period of 12 months.

However, some manufactures have a lifetime guarantee. In this case please contact us. This guarantee specifically excludes faults caused by accident, neglect, and misuse. In addition routine maintenance (cleaning of dirty audio/video heads etc.), consumables (styli, plug fuses, cables, batteries, etc.), cosmetic damage and tuning of channels are not covered.

The seller will be wholly responsible for the cost of return delivery and safe return of the goods. We will provide pre-paid label to return goods to us for orders which have been purchased in Europe or will expect goods to be shipped back to us by buyer by using the cheapest possible courier services and we will reimburse the shipping cost to the customer when goods received if goods to be returned from outside Europe. Proof of postage is not proof of delivery and you are therefore strongly advised to send your package by recorded delivery, registered post or courier, and to maintain sufficient insurance to cover the value of the goods.

Regardless of the warranty, you have right to cancel your order within 30 days without giving any reason. The cancellation period will expire after 30 days from the day when order has been delivered. To gain the right to cancel, you must inform us about your decision to cancel the order by a clear statement. To meet the cancellation deadline, it is sufficient for you to contact us about your decision before the cancellation period has expired.

Effects of cancellation: If you cancel the order, we will reimburse to you all payments received from you, including the costs of delivery (except for the supplementary costs arising if you chose a type of delivery other than the least ex-pensive type of standard delivery offered by us). We may make a deduction from the reimbursement for loss in value of any goods supplied, if the loss is the result of unnecessary handling by you.
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Size Chart

Thread Sizes
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3 Reviews

  • 5
    Excelente product buy the adaptors

    Posted by Andrew Mitchell on 22nd Apr 2020

    Easy to fit works on gravity system

  • 5
    Customer review

    Posted by on 19th Apr 2017

    better design than previously. No screw to come loose like the last one which wrecked my well pump by falling out back down the feed pipe.

  • 4
    Customer review

    Posted by Andrew on 24th Feb 2015

    Is the best check valve I have bought.

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