Featuring integrated double ferrule compression tube fittings machined directly into both ends of the valve body, our Brass Needle Valves Tube to Tube connect directly to fractional (1/8" to 1") and metric (6mm to 25mm) copper, brass, and stainless steel tubing. Rated up to 5,000 PSI (345 Bar) with vibration-proof colleting grip and bubble-tight Class VI shutoff.
The Brass Needle Valve Tube to Tube incorporates precision double ferrule compression tube fitting ends machined directly into both sides of the valve body. Engineered for seamless copper, brass, and soft stainless steel tubing, it eliminates threaded pipe adapters, PTFE thread tape contamination, and potential leak points in instrumentation circuits.
The two-ferrule colleting action provides strong mechanical gripping and vibration dampening without thinning or weakening the tubing wall. Manufactured from ASTM B16 Alloy C36000 solid extruded brass, this valve provides fine-pitch needle throttling for pneumatic sampling, laboratory test benches, and compressed air distribution.
Manufactured by Pioneer Industries Mumbai, our Tube to Tube Brass Needle Valves are fully intermixable and interchangeable with leading international instrumentation tube fitting brands.
Every valve is precision CNC-machined from ASTM B16 solid brass barstock, equipped with silver-plated nut threads to prevent galling, and 100% factory pressure tested to API 598 and MSS-SP-99 standards.
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Pioneer Industries is a leading manufacturer of Brass Needle Valves with integrated double ferrule tube compression ends, engineered for clean analytical and pneumatic circuits.
The direct tube connection reduces installation labor by up to 50% on instrumentation panels, while eliminating sealant debris that can foul sensitive flow meters and gas analyzers.
Fractional tube sizes 1/8" to 1" O.D. and metric sizes 6mm to 25mm O.D.; working pressure up to 5,000 PSI; ASTM B16 brass body and nuts; PTFE packing.
Explore comprehensive engineering dimensional configurations for Metric Series and Fractional Series Brass Needle Valves Tube to Tube. Manufactured according to ASME B16.34, API 598, and MSS-SP-99.
| Part No. | Tube O.D. | End Connection | Orifice (mm) | Cv | L (mm) | H (mm) | W (mm) | Working Pressure |
|---|---|---|---|---|---|---|---|---|
| PI-BNV-TT-6M | 6 mm O.D. | 6 mm Double Ferrule | 3.8 mm | 0.35 | 58 mm | 62 mm | 45 mm | 5,000 PSI |
| PI-BNV-TT-8M | 8 mm O.D. | 8 mm Double Ferrule | 4.8 mm | 0.50 | 62 mm | 66 mm | 45 mm | 5,000 PSI |
| PI-BNV-TT-10M | 10 mm O.D. | 10 mm Double Ferrule | 6.4 mm | 0.80 | 68 mm | 72 mm | 50 mm | 4,000 PSI |
| PI-BNV-TT-12M | 12 mm O.D. | 12 mm Double Ferrule | 8.0 mm | 1.25 | 76 mm | 78 mm | 55 mm | 4,000 PSI |
| PI-BNV-TT-16M | 16 mm O.D. | 16 mm Double Ferrule | 9.5 mm | 1.80 | 86 mm | 88 mm | 60 mm | 3,000 PSI |
| PI-BNV-TT-20M | 20 mm O.D. | 20 mm Double Ferrule | 11.0 mm | 2.40 | 96 mm | 98 mm | 65 mm | 3,000 PSI |
| Part No. | Tube O.D. | End Connection | Orifice (in) | Cv | L (in) | H (in) | W (in) | Working Pressure |
|---|---|---|---|---|---|---|---|---|
| PI-BNV-TT-02T | 1/8" O.D. | 1/8" Double Ferrule | 0.093 in | 0.15 | 2.10 in | 2.30 in | 1.75 in | 5,000 PSI |
| PI-BNV-TT-04T | 1/4" O.D. | 1/4" Double Ferrule | 0.188 in | 0.45 | 2.35 in | 2.52 in | 1.75 in | 5,000 PSI |
| PI-BNV-TT-06T | 3/8" O.D. | 3/8" Double Ferrule | 0.250 in | 0.78 | 2.68 in | 2.75 in | 2.00 in | 4,000 PSI |
| PI-BNV-TT-08T | 1/2" O.D. | 1/2" Double Ferrule | 0.312 in | 1.25 | 3.05 in | 3.07 in | 2.25 in | 4,000 PSI |
| PI-BNV-TT-12T | 3/4" O.D. | 3/4" Double Ferrule | 0.375 in | 1.80 | 3.50 in | 3.46 in | 2.50 in | 3,000 PSI |
| PI-BNV-TT-16T | 1" O.D. | 1" Double Ferrule | 0.433 in | 2.40 | 4.10 in | 3.86 in | 2.75 in | 3,000 PSI |
| Operating Parameter | Standard Specification | Severe Service / High-Pressure Rating |
|---|---|---|
| Maximum Operating Pressure | Up to 5,000 PSI (345 Bar) for sizes 1/8" to 1/4" / 6mm | Up to 3,000 PSI (206 Bar) for sizes 3/4" to 1" / 20mm |
| Hydrostatic Shell Test Pressure | 1.5 × Working Pressure (7,500 PSI / 517 Bar) | 100% Factory Tested with Demineralized Water |
| Pneumatic Seat Test Pressure | 1,000 PSI (70 Bar) Nitrogen / Clean Dry Air | Zero Bubble Leakage Rate per API 598 |
| Working Temperature Range | -40°C to +150°C (-40°F to 300°F) with PTFE | -20°C to +200°C with Viton / FKM O-rings |
| Stem Tip Construction | Precision 30° tapered metering tip | Hardened 316 Stainless Steel or High-Tensile Brass |
| Shutoff Classification | API 598 / MSS-SP-99 (Bubble-Tight Class VI) | Helium Leak Rate < 1 × 10⁻⁸ sccs |
| Design & Quality Standards | ASME B16.34, ASME B31.3, MSS-SP-99, BS 5351 | Compression Ends per ASME / ASTM Tube Standards |
| Inspection Certification | EN 10204 Type 3.1 Mill Test Certificate | 100% Raw Material Chemical & Mechanical Traceability |
Pioneer Industries manufactures Brass Needle Valve Tube to Tube using premium ASTM B16 / ASTM B283 high-grade brass alloy and precision engineered components:
| Component / Grade | Material Standard | Composition / Engineering Feature |
|---|---|---|
| Valve Body | ASTM B16 Alloy C36000 Brass / ASTM B283 C37700 | Cu 60.0-63.0%, Pb 2.5-3.7%, Fe ≤ 0.35%, Zn Balance |
| Compression Ferrules | Precision Machined Brass / Case-Hardened Rear Ferrule | Precision burnishing and vibration dampening grip |
| Compression Nuts | ASTM B16 Alloy C36000 Brass with Silver Plating | Prevents thread galling during repeatable makeups |
| Metering Stem | ASTM B16 Alloy C36000 / ASTM A479 Type 316 | Precision rolled fine pitch threads for micro-metering |
| Stem Packing | Virgin PTFE (Polytetrafluoroethylene) Rings | Chemical inertness, low friction, high resilience |
| Operating Handle | Nickel Plated Brass T-Bar / Anodized Aluminum | Ergonomic grip with set-screw stem retention |
Our manufacturing, machining tolerances, and quality verification strictly adhere to international engineering benchmarks:
Brass Needle Valve Tube to Tube configurations are deployed across critical pneumatic and hydraulic circuits requiring dependable flow regulation, working pressures up to 5,000 PSI, and leak-tight shutoff.
Direct tube connections eliminate thread tape debris, ensuring ultra-pure, particle-free sample delivery.
Enables clean, vibration-proof tube makeup on control consoles and transmitter impulse sensing lines.
Allows repeatable 25+ reassembly cycles without loss of vacuum-tight helium leak integrity.
Direct double ferrule swaging onto copper tubing provides permanent leak-tight flow regulation.
Provides fine metering and zero-leakage isolation on industrial air distribution circuits.
Resists corrosion from fresh water and hydraulic coolants on machine tool bearing circuits.
Pioneer Industries’ Stainless Steel 2-Way Ball Valve Tube to Tube components are trusted across critical global industries for severe service reliability.
Expert engineering insights and technical guidance regarding pressure ratings, end connections, seat formulations, quality standards, and industrial applications for Brass Needle Valve Tube to Tube.
A Stainless Steel 2-Way Ball Valve Tube to Tube features integrated double ferrule compression tube fittings machined directly into both ends of the valve body. When tightening the compression nut 1-1/4 turns past finger-tight, the front ferrule is driven into the body cone and swaged onto the tube outer diameter to create a 100% gas-tight metal-to-metal seal. Simultaneously, the case-hardened back ferrule advances, burnishing and colleting the tube wall to provide strong mechanical grip and vibration resistance without weakening the tubing.
Integrated tube ends eliminate two intermediate NPT/BSPP threaded joints, reducing potential leak points, eliminating thread sealant (PTFE tape or paste) which can break loose and clog sensitive analyzer orifices, saving substantial envelope length, and decreasing installation labor by up to 50% on instrumentation panels.
Yes. Our double ferrule compression geometry is engineered to be fully intermixable and interchangeable with major international tube fitting manufacturers (including Swagelok, Parker A-LOK, and Hoke Gyrolok), adhering strictly to global instrumentation tubing dimensional and performance standards.
Pioneer Industries manufactures tube-to-tube ball valves for fractional tubing from 1/8" to 1" O.D. and metric tubing from 6mm to 25mm O.D. Working pressures reach up to 500 Bar (6,000 PSI / optional 10,000 PSI series), with pressure holding capability matching or exceeding the burst pressure of heavy-wall ASTM A269 316/316L tubing.
For optimal sealing, use high-quality fully annealed seamless ASTM A269 or ASTM A213 Grade 316/316L stainless steel tubing with a maximum hardness of Rockwell HRB 90 (or 200 HV). Tubing must be clean, scratch-free, and within outer diameter tolerances of ±0.005" (±0.13mm).
Yes. Our tube-to-tube valves are equipped with external body threads and heavy-duty stainless steel panel mounting nuts. This allows clean, rigid pass-through mounting through instrument panels, analyzer shelters, and DCS consoles up to 12mm panel thickness without straining connected tubing lines.
Pioneer Industries double ferrule fittings can be disassembled and remade more than 25 times without loss of leak integrity. For reassembly, insert the tubing until the front ferrule seats in the body, tighten the nut hand-tight, then advance the nut approximately 1/4 turn with an open-end wrench (or until a sharp rise in torque is felt).
After initial makeup (1-1/4 turns from finger-tight for sizes > 3/16"), an inspector attempts to slide a standard gap inspection gauge between the nut and the valve body hex shoulder. If the gauge cannot enter the gap, the fitting is correctly tightened. If the gauge slides into the gap, further tightening is required to complete ferrule swaging.
For analytical gas chromatography and ultra-pure sampling, we supply Virgin PTFE or Modified PCTFE seats with electropolished 316 ball trims. When tested with mass spectrometer helium leak detectors, Pioneer Industries tube ball valves exhibit leakage rates below 1 x 10⁻⁹ sccs, ensuring zero atmospheric ingress.
All valves are dispatched with EN 10204 3.1 material test certificates, hydrostatic test reports, and raw material heat traceability. Each tube end is capped with protective polyethylene plugs to protect precision ferrule cones and threads, individually poly-bagged, and packed in heavy-duty export crates.
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Note: Please note that the information on this document is for illustration purposes only as information may vary with individual products, their grade and applications industries or uses and therefore cannot be guaranteed as accurate. © Copyright 2026 by Pioneer Industries. All Rights Reserved.
