


Female trailer brake quick release coupling 3/8" BSP DN08, 150 Bar rated, 24 L/min. Protecting and stopping dirt entering the quick releases.
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Female trailer brake quick release coupling 3/8" BSP DN08, 150 Bar rated, 24 L/min

| DN | ISO | L2 | D1 | S1 | T1 | PRODUCT REFERENCE |
| 8 | 12.5 | 55.8 | 44 | 27 | 3/8" BSP | QRCTBF38 |
| 1/2" BSP | QRCTBF12 | |||||
| M18 X 1.5 | QRCTBFM18 |
| NOMINAL SIZE | MAX WORKING PRESSURE | RATED FLOW | MIN BURST PRESSURE | FLUID SPILLAGE | |||
| MALE | FEMALE | COUPLED | |||||
| DN | ISO | (BAR) | (L/M) | (BAR) | (BAR) | (BAR) | (CC) |
| 4 | 6.3 | 400 | 12 | 1900 | 1900 | 1430 | 0.008 |
| 6 | 10 | 350 | 23 | 1560 | 1780 | 1610 | 0.01 |
| 8 | 12.5 | 350 | 45 | 1700 | 1590 | 1900 | 0.012 |
| 12 | 20 | 350 | 100 | 1660 | 1470 | 1840 | 0.02 |
| 16 | 25 | 350 | 189 | 1470 | 1400 | 1530 | 0.03 |
| 24 | 40 | 350 | 379 | 1000 | 1000 | 1000 | 0.25 |
| 32 | 50 | 250250 | 758 | 1000 | 1000 | 1000 | 0.35 |
Flowfit Trailer Break Quick Release Couplings
Trailer Brake Quick Release Couplings are specialized hydraulic fittings designed for connecting and disconnecting the brake lines of trailers quickly and efficiently. These couplings ensure a secure and leak-free connection between the trailer's hydraulic brake system and the towing vehicle, providing both convenience and safety.
Interchanges with:
- Parker 5676
- Dnp PFT
- Faster VF
- HOLMBURYTB
- Stucchi IFR
- Voswinkel BP
Caps available to protect and stop dirt entering the quick releases and your hydraulic circuit.
SPECIFICATION
Standard: ISO 5676
Materials: Zinc-plated carbon steel body
Seals: Standard in nitrile NBR. On request FKM & EDM
Back-up ring: PTFE
Working temperature: with standard seals -25°c + 125°c
INSTRUCTIONS FOR USE
Prior to connecting ensure that the mating surfaces of the couplings are clean and free of dirt to avoid contamination of the hydraulic system. To connect, push both couplings together until the locking mechanism engages. For added security and to prevent accidental disconnection, rotate the collar on the female coupling a quarter turn. To disconnect, rotate the collar on the female coupling until the notch aligns with protruding ball bearing then pull the collar back, allowing the couplings to disengage.
CAUTION
Under no circumstances should the couplings be connected or disconnected with pressure in the hydraulic system. Whilst in use, the couplings may become hot (up to +100°C). Protective gloves should be worn when disconnecting. To reduce the risk of contamination, the use of protective caps on the couplings when they are disconnected is strongly recommended (available separately).
General delivery information
Thank you for visiting and shopping at www.flowfitonline.com. Below are the terms and conditions for the Shipping Policy for Harrier Fluid Power Ltd T/A Flowfit.
Orders are processed and shipped during standard working hours (08:30–17:00 BST), Monday to Friday (excluding Bank Holidays). All orders placed before 4pm Monday to Thursday and 3pm on Friday are processed and despatched on the same business day.
If we are experiencing a high volume of orders, shipments may be delayed by 1–2 days. Please allow additional days in transit for delivery. If there will be a significant delay in shipment of your order, we will contact you via email or telephone.
United Kingdom delivery rates & estimates
| Service | Price | Terms |
|---|---|---|
| FREE Delivery | FREE | Free UK delivery is available for orders over £99.99+ VAT. Delivered by close of business next working day. |
| Express Delivery | £9.99 + VAT | UK Mainland delivery for orders under £99.99 + VAT. Delivered by close of business next working day. |
| Express 9am | £42.95 + VAT | Delivered by 9am next working day. |
| Express 12pm | £20.95 + VAT | Delivered by 12pm next working day. |
| Channel Islands | ||
| Standard Delivery | £20.95 + VAT | Delivery in 2–3 working days. |
| UK Highlands & Isles | ||
| Order value below £99.99 + VAT | £31.95 + VAT | Delivery in 2–3 working days. |
| Order value over £99.99 + VAT | £28.95 + VAT | Delivery in 2–3 working days. |
* Overnight delivery is only available for certain delivery addresses within the United Kingdom. Please contact us beforehand to confirm eligibility.
Email sales@flowfitonline.com or call 01584 876 033.
Collection: Customers are welcome to arrange collection using a courier of their choosing, or collect in person from our depot in Ludlow, Shropshire. Please advise us in advance so we can ensure your order is complete before collection.
International delivery rates & estimates
Shipping charges depend on weight and destination country and are calculated and displayed at checkout. Orders for delivery within the EU typically arrive on a 2–5 day service (depending on the destination). Shipments outside the EU typically arrive on a 3–7 day service (depending on the destination).
Please contact our Sales team for accurate delivery times. If your parcel has not arrived within the expected timeframe, please get in touch. Please ensure the shipping address entered at checkout is correct; we are not responsible for incorrect or undeliverable addresses.
Customs, duties and taxes
Import duties, taxes, and brokerage fees are not included in the product price or shipping and handling costs. These charges are the buyer’s responsibility. You may check with your country’s customs office to determine any additional costs.
By placing an international order (shipping outside the United Kingdom), the buyer is responsible for complying with their country’s laws, regulations, and restrictions. If a product is seized and destroyed by customs, we will not be responsible for losses, products, or shipping refunds.
Shipment confirmation & order tracking
You will receive a Shipment Confirmation email once your order has shipped, containing your tracking number(s). Tracking will be active within 24 hours.
Working closely with top carrier experts
We use some of the top carrier companies in the world, although you can also use your own carrier to collect your order. All deliveries require a signature on delivery. Below are our main carrier companies.

Damages
Harrier Fluid Power Ltd T/A Flowfit is not liable for products damaged or lost during shipping. If you receive your order damaged, please contact us to file a claim. Please save all packaging materials and damaged goods before filing a claim.
Returns policy
Our Return & Refund Policy provides detailed information about options and procedures for returning your order.





