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RUNXIN F77B1 Automatic Filter

P13 800

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RUNXIN F77B1 Automatic Filter

The RUNXIN F77B1 Automatic Filter controls water filtration with ease. In addition, it handles up to 18 000 L/h, making it perfect for medium to large filtration systems. Moreover, the valve allows you to program backwash cycles using a clear LED display. As a result, it reduces manual work and ensures consistent filtration.

Furthermore, the F77B1 supports 2″ connections and offers flexible installation, either top-mounted or side-mounted. For example, its ceramic sealing faces prevent leaks and corrosion. Therefore, this automatic filter works well with sand filters, carbon filters, and pre-RO setups, making it ideal for industrial and commercial water treatment applications.

Features & Benefits

  • High Flow Capacity: Supports up to 18,000 L/h, suitable for 2″ connections.
  • Automatic Backwash & Rinse Control: Automates service, backwash, fast‑rinse, and brine (if configured).
  • LED Dynamic Display & Button Lock: Displays current status and locks buttons to prevent accidental changes.
  • Flexible Mounting Options: Configurable for top‑mount or side‑mount installation.
  • Reliable Sealing & Construction: Uses ceramic sealing faces for corrosion resistance and leak‑free operation.

Specifications

  • Inlet/Outlet: 2″ Male threads.
  • Drain Port: 1½″ or 2″, depending on variant.
  • Operating Pressure: 0.15–0.6 MPa (≈1.5–6 bar).
  • Operating Temperature: 5 °C–50 °C.
  • Turbidity Rating: <20 FTU.
  • Suitable Tank Size: 24″–30″ diameter vessels.

Application & Use Cases

This automatic filter valve is ideal for:

  • Sand or multimedia filters in industrial‑scale water treatment
  • Activated carbon filtration systems ahead of RO plants
  • High‑flow water refilling stations where automatic regeneration is required
  • Municipal or commercial filtration setups requiring reliable automated valve control

Installation & Maintenance Tips

  1. Ensure the valve is mounted on a compatible vessel (24″‑30″ tank diameter) with correct inlet/outlet sizing.
  2. Connect power (AC100‑240 V) and set up according to time‑clock or meter‑type controls as required.
  3. Program backwash sequence (service → backwash → fast rinse → service) based on application and media type.
  4. Monitor the LED display for service indicators or outage warnings. Buttons lock after 1 minute of inactivity to prevent tampering.
  5. Clean or replace media as required and ensure the valve recalibrates correctly after servicing.

Return And Refund Policy

INSTORE EXCHANGES AND REFUNDS

For your convenience, item(s) purchased online may be exchanged or refunded at any Puritech store within South Africa, provided all online return policy conditions are met.  A refund will be provided to you by crediting your original method of payment. Please note that cash refunds will not be provided under any circumstances and courier charges cannot be refunded.
Item(s) purchased at any Of Our store within South Africa can only be returned at a Puritech store within South Africa.

Puritech Online Returns Policy

There may be times when you will need to return an item purchased from us. Our Returns Policy is designed to assist you with your return. The benefits given by our Returns Policy are in addition to other rights and remedies you may have as a consumer under the Consumer Protection Act (CPA), as well as any other applicable acts.

If you wish to return any item(s) you have purchased, you can either return the item(s) via courier to our online store or in-person to a Puritech store within South Africa (only) within 14 days from the date of purchase…

We encourage you to return your parcel via Fast Way, Courier Guy, FedEx, or ParcelIt traceable courier services as all returned parcels remain the responsibility of the purchaser until received by Puritech.

Store purchases cannot be returned or refunded online.

Returns Policy Conditions

At Puritech we want to ensure you love the items you purchase. If you have changed your mind on a purchase we will exchange your item or refund your original method of payment provided that:

  • You return the item within 14 days (inclusive) from the date of purchase.
  • You produce your original Puritech invoice (receipt) when you return the item
  • The item is in original saleable condition:
  • With all original tags still attached
  • In an unopened and unused state
  • A return form is completed and accompanies your item(s) being returned
  • In original packaging

If you are not able to comply with these requirements, Puritech reserves the right to refuse an exchange or refund on change of mind items. Puritech will not accept a bank statement as proof of purchase.

We regret that we are unable to accept the exchange or return of the following items for change of mind for hygiene reasons:

  • Open Filters
  • Open Membranes
  • Used Reverse Osmosis Systems

Online Exchanges and Refunds

Online Exchanges

If you would like to exchange an item(s) for an alternative item(s), please complete the online Return Request form that is located within My Account under ‘My Orders’ prior to sending the item(s) back.

Exchanges can only be exchanged for the same value of the purchase price of the item being returned.

Your item (s) that you wish to return needs to be sent back to our online returns address with the relevant return documents, duly completed, and a tax invoice (receipt).

If the alternative item is no longer available, provided all the Returns Policy Conditions are met, a refund will be provided to you crediting your original method of payment. All return courier costs will be for your own expense and this will be deducted from your refund amount.

Online Refunds

To obtain a refund please fill out the online Return Request (RMA) form that is located within My Account under ‘My Orders’ prior to sending the item(s) back.

A refund will be provided to you crediting your original method of payment, providing all the Returns Policy Conditions are met and our warehouse has received the original item that is being returned. Cash refunds will not be provided under any circumstances.

COMPLETING A RETURNS REQUEST FORM ONLINE

  • Log into your Puritech “My Account” and go to “My Orders”.
  • Click on the order that contains the item(s) that you wish to return or request an exchange for and click on the returns button.
  • After you have submitted your return request, one of our friendly staff members will get in contact with you to organize a collection.
  • Once you have sent your item(s) back to our warehouse, our warehouse will authorize the refund.

Before sending, please ensure all details on this form are correct. You will also need to write the returns number on the outside of the parcel. You will be notified by email of the status of your exchange or refund.

Please Note!

Puritech does not cater for courier costs involved in bringing back a faulty product or sending it back to the client.