Imperial PVC Plain to Threaded Pipe Fittings FAQ

Below you'll find answers to common questions about our Imperial PVC Plain to Threaded Pipe Fittings collection. If you need further help selecting the right fitting for your application, our technical team is always happy to assist.

What are imperial PVC plain to threaded pipe fittings used for?

These fittings allow you to transition from a plain (solvent weld) PVC connection to a BSP threaded connection within an imperial-sized pipework system. They are widely used in water treatment, chemical dosing, industrial processing, and mechanical services where a threaded joint is needed to connect valves, instruments, or equipment to a solvent-welded PVC pipeline.

What sizes are available in this collection?

Our Imperial PVC Plain to Threaded Pipe Fittings collection covers a range of standard imperial sizes to suit common pipeline configurations. For the full list of available sizes and configurations, please browse the collection page or contact our team, who can confirm stock and advise on the best option for your project.

Are these fittings suitable for use with chemicals?

PVC is naturally resistant to a wide range of acids, alkalis, and other chemicals, making these fittings a popular choice in chemical handling and dosing applications. However, chemical compatibility depends on concentration, temperature, and the specific substance involved. If you are unsure, get in touch and we can help you check suitability for your application.

Do the threaded ends conform to BSP standards?

Yes, the threaded ends on these fittings are manufactured to British Standard Pipe (BSP) thread specifications. This ensures reliable compatibility with other BSP-threaded components such as valves, gauges, and ancillary equipment commonly used across UK industrial pipework systems.

Can I use PTFE tape on the threaded connections?

PTFE tape is recommended on all threaded PVC joints to ensure a leak-free seal. Apply the tape in the direction of the thread (clockwise when viewed from the end) and avoid overtightening, as excessive force can crack or damage PVC threads. Hand-tight plus a quarter to half turn with a strap wrench is generally sufficient.

What pressure ratings do these fittings support?

Pressure ratings vary depending on the fitting size and type. As a general guide, imperial PVC fittings are rated for use in low to medium pressure systems. For specific pressure data relevant to your application, please contact our technical team, who can provide detailed specifications and help you select the correct fitting.

How are the plain (solvent weld) ends joined to the pipe?

The plain socket end is designed for solvent cement welding. You apply a PVC solvent cement to both the pipe exterior and the fitting interior, then push them together to form a permanent, strong bond. Make sure both surfaces are clean and degreased before assembly, and allow adequate curing time before pressurising the system.

How much does delivery cost, and how quickly will my order arrive?

We offer flat-rate delivery at just £12 across the UK on all orders, regardless of size. Our dispatch team works to get orders out quickly, and we pride ourselves on fast, dependable nationwide delivery. If you have an urgent requirement, contact us and we will do our best to accommodate your timeline.

Can I order in bulk or request a quote for a larger project?

Absolutely. We regularly supply contractors, procurement teams, and engineers working on larger projects. Get in touch with your requirements and we can provide competitive pricing, confirm stock availability, and discuss stage payment options if needed.

What if I'm not sure which fitting I need?

Our team has hands-on technical knowledge of pipeline systems and we are here to help you solve problems, not just sell parts. Call or email us with details of your application, including pipe size, system type, and what you are connecting to, and we will recommend the right fitting for the job.