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The Right Connection, Every Time – Choose Needle Valves by End Configuration
When choosing a needle valve, the end connection type is a crucial factor. It affects installation, compatibility, pressure handling, and system safety. At Perfect Engineers, we manufacture and supply needle valves in all standard and customized end connection formats to suit various piping systems and applications.
Whether you need threaded ends for quick fittings or welded connections for extreme pressure, we’ve got you covered — with precision-engineered, leak-proof valves built for long service life.
Here are the major types of end connections we offer:
At Perfect Engineers, we specialize in manufacturing Screwed (BSP/NPT) Needle Valves for safe, reliable, and precise flow control in liquid and gas pipelines. Designed with threaded male/female ends, these valves are perfect for inline connection without welding, offering easy installation and disassembly.
Why Perfect Engineers?
Perfect Engineers manufactures high-integrity Flanged Needle Valves for industrial pipelines that demand weld-free installation, accurate flow throttling, and leak-tight shut-off. With flange standards as per ANSI, DIN, BS, and JIS, these valves are perfect for oil & gas, power, chemical, and marine applications.
Why Perfect Engineers?
At Perfect Engineers, we manufacture Socket Weld Needle Valves for industrial flow control systems that demand leak-tight shut-off, high-pressure endurance, and permanent inline connection. Engineered from forged or bar stock bodies, these valves feature socket weld (SW) ends as per ASME B16.11, suitable for 6000 PSI and higher pressure applications.
Why Perfect Engineers?
Perfect Engineers offers high-quality Tube Fitting Needle Valves with double ferrule compression ends, engineered for seamless connection to instrumentation tubing. These valves provide leak-proof flow control and are widely used in gas analyzers, process panels, sampling systems, and industrial skids.
Why Perfect Engineers?
Perfect Engineers manufactures robust, precision-engineered Double Block & Bleed Needle Valves (DBB) designed to offer positive isolation and controlled pressure bleed in critical instrumentation systems. Built for high-pressure applications, our DBB valves combine two shut-off valves and a bleed valve into a single compact unit, reducing leak paths and installation space.
Why Perfect Engineers?
| End Connection Type | Installation | Pressure Handling | Best For |
|---|---|---|---|
| Threaded (BSP/NPT) | Simple, quick-fit | Medium to high | General process and utilities |
| Compression Fitting | Clean & tool-less | Medium | Instrumentation, lab & gas use |
| Flanged End | Bolt-on | High | Industrial plants & refineries |
| Welded (SW/BW) | Permanent joint | Very High | Hazardous, high-vibration zones |
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You can get each of these connection types in:
End connection types are available from ¼” to 2” sizes, and we offer both standard and custom-built connections.
When working with metal tubing in clean gas or fluid systems, especially in labs or analyzer panels.
Yes. Flanged valves offer excellent sealing and are designed for high-pressure, high-temperature industrial processes.
Socket welds are easier to install for smaller sizes. Butt welds are stronger and preferred for larger diameters and critical conditions.
Yes, we manufacture compression-end needle valves that are compatible with industry-standard tube fitting systems.
Absolutely. Custom mixed-end configurations are available on request.
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