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| SERVICE | DELIVERY PRICE | DELIVERY TIME |
|---|---|---|
| Standard Delivery | £34.99 | 7 to 10 working days |
| SERVICE | DELIVERY PRICE | DELIVERY TIME |
|---|---|---|
| Standard Delivery | £34.99 | 7 to 10 working days |
| SERVICE | DELIVERY PRICE | DELIVERY TIME |
|---|---|---|
| Standard Delivery | £4.99 | 3 to 5 working days |
| SERVICE | DELIVERY PRICE | DELIVERY TIME |
|---|---|---|
| Standard Delivery | £34.99 | 5 to 7 working days |
| SERVICE | DELIVERY PRICE | DELIVERY TIME |
|---|---|---|
| Standard Delivery | £24.99 | 7 to 10 working days |
Product Number: AC21EF
Incompatible or worn airline fittings cause pressure loss and slow down workshop productivity. The PCL AC21EF is a quick-release coupling in the Airflow series, female thread, Rp 3/8, manufactured in Sheffield and part of a design lineage dating back to 1938.
The Airflow range delivers a 4.8 mm bore with a rated flow of 43 cfm at 100 psi, making it well suited to high-demand compressed-air applications where consistent flow matters. Maximum working pressure is 14 bar (200 psi), and the operating temperature range spans -40°C to 100°C, covering most workshop and industrial environments. The coupling is interchangeable with Cejn 295 and Rectus 19 series fittings, which broadens its compatibility across mixed-brand airline systems.
The female Rp 3/8 thread designation means the AC21EF accepts a male Rp 3/8 threaded fitting or adaptor. As part of the Airflow series, this coupling is offered alongside male-thread and hose-tail variants in multiple thread sizes, allowing a consistent and leak-resistant airline system to be assembled from a single product family.
Manufactured in Sheffield, UK, by PCL — part of HORNGROUP — since 1938. No box contents or warranty terms are specified in the available source data.
Product Features :
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| Brand | PCL |
|---|---|
| Number | AC21EF |
| Thread Type | Female |
| Thread Size | Rp 3/8 |
| Nominal Bore | 4.8 mm |
| Flow Rate | 43 cfm @ 100 psi |
| Maximum Working Pressure | 14 bar (200 psi) |
| Temperature Range | -40°C to 100°C |
| Interchange | Cejn 295 / Rectus 19 |
| EAN | 5014875330891 |
| Engine Parts | Product Number | Product Name | Recommended Units | Product Price |
|---|
Standard Delivery: £4.99
Delivery Estimate: 3 to 5 working days
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| Technical Specification | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| PRODUCT NUMBER | AC91EF05 | AC5EF | AC71EF/S | AC4EF | AC51EF | AC71EF | ACH62 | PBS21EM | ACH64 | AC91EF |
| Type | Coupling | Coupling | Coupling | Coupling | Coupling | Coupling | Coupling | Coupling | Coupling | Coupling |
| Drive | 3/8" | 3/8" | ||||||||
| Family | Vertex | PCL 100 | PCL XF-Euro | PCL | InstantAir | PCL XF-Euro | PCL | Vertex | ||
| Thread | 3/8" | 3/8" | 3/8" | 3/8" | 3/8" | 3/8" | 3/8" | 3/8" | 3/8" | 3/8" |
A. The AC21EF is the PCL Airflow Coupling Female Thread Rp 3/8. The PCL AC21EF is a quick-release coupling in the Airflow series, female thread, Rp 3/8, manufactured in Sheffield and part of a design lineage dating back to 1938.
A. Female.
A. Rp 3/8.
A. 4.8 mm.
A. 43 cfm @ 100 psi.
A. 14 bar (200 psi).
A. -40°C to 100°C.
A. Cejn 295 / Rectus 19.
A. Yes — this product is part of a PCL range with sibling variants in alternative sizes, connections or configurations; see the product variants for options.
A. PCL (Pneumatic Components Ltd), the Sheffield, UK based world leader in tyre inflation and compressed air products, part of HORNGROUP.
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