Gate Valves FAQ – Pipetech Supplies

Below you will find answers to the most common questions our customers ask about the gate valves available from Pipetech Supplies. If you need further technical guidance or help selecting the right valve for your application, our team is ready to assist.

What types of gate valves does Pipetech Supplies stock?

We carry a broad range of gate valves suitable for industrial, commercial, and domestic applications. Our catalogue includes cast iron, ductile iron, brass, and stainless steel gate valves in flanged, threaded, and other end-connection formats, covering pressure ratings such as PN16, PN25, and ANSI 150/300.

What sizes of gate valves are available?

Our gate valve range spans common sizes from 1/2" (DN15) through to large-bore options for mains and process pipework. Exact availability depends on the valve material and connection type, so check the individual product listings or contact us for specific size requirements.

Are your gate valves suitable for potable water systems?

Selected gate valves in our range hold WRAS (Water Regulations Advisory Scheme) approval, confirming they are safe for use in potable water supplies. Each product listing states whether WRAS approval applies, so always verify this before specifying a valve for drinking water applications.

What pressure ratings do your gate valves support?

Our gate valves are available in a range of pressure ratings to suit different system demands. Common ratings include PN16 and PN25 for metric flanged valves, and ANSI 150 and ANSI 300 for imperial flanged connections. Always match the valve's rated pressure to your system's maximum operating pressure and temperature.

How do I choose between a flanged and a threaded gate valve?

Flanged gate valves are typically used in larger pipework and higher-pressure systems where a bolted joint provides a secure, serviceable connection. Threaded (BSP) gate valves suit smaller bore pipework and lower-pressure installations where quick fitting is preferred. Your pipe material, system pressure, and maintenance requirements should guide the choice.

Can I use a gate valve to regulate flow?

Gate valves are designed primarily for full-open or full-closed (isolation) duty rather than flow regulation. Operating a gate valve in a partially open position can cause turbulence, vibration, and premature wear to the gate and seat. If you need throttling control, consider a globe valve or butterfly valve instead.

Do your gate valves comply with recognised engineering standards?

Yes. Our gate valves are sourced from trusted manufacturers and comply with relevant engineering standards, which may include BS EN, DIN, ANSI, and ISO specifications depending on the product. Compliance details and applicable standards are listed on each product page.

What is the typical delivery time for gate valves?

Most gate valves held in stock qualify for next-day delivery across the UK when ordered before the cut-off time. Non-stock or specialist items may require a short lead time; our team can confirm availability and expected dispatch dates at the point of order.

What materials should I choose for corrosive or aggressive media?

For mildly corrosive fluids, stainless steel gate valves offer strong chemical resistance and long service life. For highly aggressive chemicals, you should consult our technical team to confirm material compatibility before purchasing. Factors such as fluid concentration, temperature, and pressure all influence the correct material selection.

How do I get help specifying the right gate valve for my project?

Contact our team by phone or email with your system details, including pipe size, pressure, temperature, media type, and connection preference. With decades of combined industry experience, we can recommend the most suitable valve from our range and confirm stock availability. We regularly support mechanical contractors, design engineers, and building managers with specification-driven procurement.