Our needle valves and manifold valves are designed and manufactured for superior flow control. Working pressures of up to 10,000 psi for gases and liquids at high temperatures. Providing a bubble-tight seal, our needle valves and manifolds now available from only £19.50. Order now to ensure speedy delivery.
Needle valves and manifolds will come polished and marked with material, cast code and end connection identifiers.
High quality isolation valves in a variety of sizes, manifolds are mountable for compact use.
Full information can be found on page 37 of our precision valves catalogue.
Popular sizes – ¼”, 3/8”, ½”
Threads – NPT, BSP, BSPT All Female/Male, F/F and M/M connection types
Stainless steel 316 is the most commonly used material for industrial instrumentation lines. It provides corrosion resistance, strength and general longevity within engineering applications.
Plastic caps protect connection types. End connection sizes from ¼” to ¾”, with any combination of ends – NPT, BSPP and BSPT.
What Is A Needle Valve?
Needle valves are a type of control valve that allow regulated flow of material, gradually halting flow to stop damages from sudden high pressure bursts of material transfer.
How Does A Needle Valve Work?
Needle valves are used for the control of flow – commonly through the use of a spindle within the design. Needle valves have a long, tapered ‘needle’ at the end of the valve design, as well as a handle for the control of shut off. This allows an engineer to turn the valve to allow the passage of gas or fluid within the valve and into the overall instrumentation system.
Some needle valves are automatic, which requires motors within a hydraulic system for use. In these cases, the valve will be automatically opened and closed for the control of flow, rather than manually adjusted.
Our needle valves are sufficient for high pressure applications, with downstream pressure release, colour-coded isolation spindles and polished finish. The valves are used for the control of flow and isolation/distribution purposes within an instrumentation system.
A split stem designed needle valve can be used for control, draining and venting purposes.
The design of our needle valve consists of a non-rotating ball tip for bubble-tight shut off, self-adjusting shaft seal which requires no maintenance and a back seating spindle. The back seating spindle prevents spindle blow out or accidental removal while in operation, assuring a high quality of flow control and safety within the instrument line.
Needle Valve Materials
Needle valve material of manufacture options
Materials acceptable within a valve can vary depending on the type of metal the valve is originally manufactured from. Standard stainless steel 316 grade needle valves are capable of handling most subtle gases and liquids.
For corrosive and harsh substances such as sour gas or chemicals, considerations should be made for the correct material usage. Sometimes these materials are already specified within a project, to ensure all valves, components and tubing within a system for continuity.
The importance of material choice is paramount as it helps improve a valves life service and prevents workplace accidents or failures.
Low Quality and Non-Industrial Use
Brass and carbon steel valves are only suitable for systems using non corrosive, subtle materials at low pressures.
Often, brass is used within plumbing and electrical maintenance, usually within households rather than industrial factories. Carbon steel is often selected as a cheaper alternative to stainless steel, but does not have elements such as chromium, nickel or manganese.
Standard and Higher Quality
Stainless steel 316 is one of the most common types of steel used for needle valves for standard quality.
The added chromium within stainless steel means that needle valves in this material hold a higher corrosion resistance. 316 is a staple favourite within industries such as hydraulic engineering, gas industries, original equipment manufacturers and process engineering.
Stainless steel components, fittings, other valves and tubing are also easily sourced, which makes it a good choice for initial set-ups or large facilities that require consistent add-ons or updates to the plant/system/factory.
Exceptional and Specialist Quality
For some needle valves, only super alloys will do. This is often the case where highly corrosive substances are being controlled and distributed within a set-up.
Alloys such as Inconel, for example, have been made to specifically resist some of the strongest corrosive substances.
These alloys often come with many beneficial properties, giving your needle valves high resistance to corrosion and cracking, alongside lowering general maintenance costs and improving life time service.
Available in various sizes and end connection types – suitable for industrial pipelines and other liquid, vapour or gas services.
Questions for our team?