Pioneer Industries manufactures high-precision Stainless Steel Integrated Bonnet Needle Valves with Tube to Tube double-ferrule compression end connections. Designed for seamless, threadless connection directly to fractional (1/8″ to 1″) or metric (3 mm to 25 mm) stainless steel instrumentation tubing, this valve eliminates pipe thread sealants, prevents media contamination, and provides supreme resistance to impulse vibration. Rated up to 6,000 PSI (414 Bar) and 10,000 PSI (700 Bar), it is engineered for analyzer sample conditioning, chromatographic skids, and high-pressure chemical dosing systems.
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Stainless Steel High Pressure Needle Valve Female to Female features union bonnet or heavy-duty screwed bonnet connection with metal to metal or stellated seat for severe high pressure. Stem threads are precision rolled, hard plated, and tip stellated to prevent galling and ensure maximum service life. Engineered with a 2-part stem tip arrangement with packing located below the actuating threads, non-rotating action ensures bubble-tight shut-off.
End connections include Female to Female threaded NPT, BSP, ISO, DIN, and JIS tapered pipe ends. One-piece forged or bar stock body without welds eliminates thermal stress zones. Maximum Working Pressure: 10,000 PSI (400 to 700 Bar) at 200°C; 20,000 PSI (1,380 Bar) at 120°C. 100% Factory tested.
Port Sizes: 1/8″ to 1″ (and up to 2″). End Connections: Female to Female (NPT, BSPT, BSPP). Body Material: ASTM A479 SS 316 / 316L, Duplex 2205, Super Duplex 2507, Hastelloy C-276, Monel 400. Pressure Rating: Up to 10,000 PSI (700 Bar) / 20,000 PSI (1,380 Bar). Testing Standards: API 598 & MSS SP-99.
Explore comprehensive engineering dimensional configurations for Metric Series and Fractional Series, Operating Parameters, and Certified Metallurgy. Manufactured according to ASME B16.34, API 598, MSS-SP-99, and international instrumentation standards.
| Part No. | Nominal Size | Female End Connection | Orifice mm | Cv | L mm | H (Open) mm | W (Handle) mm | Working Pressure |
|---|---|---|---|---|---|---|---|---|
| PI-HPNV-FF-04M | 6 mm / 1/4″ | 1/4″ Female NPT | 4.8 | 0.45 | 62.0 | 85.0 | 55.0 | 700 Bar / 10,000 PSI |
| PI-HPNV-FF-06M | 10 mm / 3/8″ | 3/8″ Female NPT | 6.4 | 0.70 | 68.0 | 92.0 | 65.0 | 700 Bar / 10,000 PSI |
| PI-HPNV-FF-08M | 12 mm / 1/2″ | 1/2″ Female NPT | 8.0 | 1.10 | 76.0 | 104.0 | 75.0 | 700 Bar / 10,000 PSI |
| PI-HPNV-FF-12M | 20 mm / 3/4″ | 3/4″ Female NPT | 10.0 | 1.80 | 88.0 | 118.0 | 90.0 | 700 Bar / 10,000 PSI |
| PI-HPNV-FF-16M | 25 mm / 1″ | 1″ Female NPT | 12.7 | 2.40 | 105.0 | 135.0 | 110.0 | 700 Bar / 10,000 PSI |
| Part No. | Tube OD (Fractional) | Orifice (in) | Cv | A (Length in) | B (Height in) | C (Handle in) | Pressure Rating |
|---|---|---|---|---|---|---|---|
| PI-IBNV-TT-02F | 1/8″ OD Double Ferrule | 0.078″ | 0.12 | 2.28″ | 2.28″ | 1.57″ | 6,000 PSI |
| PI-IBNV-TT-04F | 1/4″ OD Double Ferrule | 0.156″ | 0.35 | 2.52″ | 2.52″ | 1.85″ | 6,000 PSI |
| PI-IBNV-TT-06F | 3/8″ OD Double Ferrule | 0.250″ | 0.70 | 2.91″ | 2.91″ | 2.16″ | 6,000 PSI |
| PI-IBNV-TT-08F | 1/2″ OD Double Ferrule | 0.312″ | 1.20 | 3.31″ | 3.38″ | 2.56″ | 6,000 PSI |
| PI-IBNV-TT-12F | 3/4″ OD Double Ferrule | 0.312″ | 1.50 | 3.70″ | 3.78″ | 2.95″ | 6,000 PSI |
| PI-IBNV-TT-16F | 1″ OD Double Ferrule | 0.312″ | 1.90 | 4.41″ | 4.25″ | 3.15″ | 6,000 PSI |
| Operating Parameter | Standard Rating (10,000 PSI) | Ultra-High Pressure Rating (20,000 PSI) |
|---|---|---|
| Maximum Working Pressure | 10,000 PSI (700 Bar) at 200°C (392°F) | 20,000 PSI (1,380 Bar) at 120°C (248°F) |
| Hydrostatic Shell Test Pressure | 15,000 PSI (1,035 Bar) with demineralized water | 30,000 PSI (2,070 Bar) with demineralized water |
| Pneumatic Nitrogen Seat Test | 1,200 psig (80 Bar) zero-bubble seat leak test | 1,200 psig (80 Bar) nitrogen gas test |
| Operating Temperature Range | -54°C to 200°C (-65°F to 392°F) with PTFE Packing | -54°C to 500°C (-65°F to 932°F) with Grafoil Packing |
| Shutoff Leakage Rate | API 598 / MSS SP-99 / ISO 5208 Rate A (Bubble-Tight) | Optional Helium Mass Spec < 1 × 10⁻⁹ std cm³/s |
| Bonnet Architecture | Heavy-duty Union Bonnet with safety lock ring | Heavy-Duty Screwed Bonnet with security pin |
| Stem Tip Configuration | Two-part non-rotating hardened 17-4PH / Stellite Vee Tip | Stellite 6 / Tungsten Carbide severe throttling tip |
| Applicable Standards | ASME B16.34, MSS SP-99, API 598, BS 6755 | NACE MR0175 / ISO 15156 Sour Gas Service |
Pioneer Industries manufactures High Pressure Female-to-Female Needle Valves using certified ASTM bar stock and precision forgings:
| Component | Material Specification | Characteristics / Composition |
|---|---|---|
| Valve Body | ASTM A479 / A276 Grade 316 / 316L | One-piece weld-free bar stock, Cr 16-18%, Ni 10-14%, Mo 2-3% |
| Bonnet Nut & Flange | ASTM A479 316 / 316L Stainless Steel | Heavy-duty union design, high torsional load resistance |
| Actuating Stem | ASTM A479 316 / 17-4 PH Hardened | Rolled & hard-plated threads, mirror-burnished 16 RMS seal |
| Non-Rotating Tip | Stellite 6 / 17-4 PH Stainless Steel | Hardened metal-to-metal contact, anti-galling geometry |
| Gland Packing | PTFE Chevron / High-Temp Grafoil | Positioned below threads; Grafoil rated to 500°C |
| Handle & Lock Nut | Stainless Steel 304 T-Bar Handle | Ergonomic round or bar handle with locking screw |
Our manufacturing and quality verification strictly adhere to international engineering benchmarks:
Stainless Steel Integrated Bonnet Needle Valve Tube to Tube components are deployed across critical fluid systems requiring reliable flow control, high working pressure, and zero leakage.
Eliminates thread tape debris, providing clean, ultra-pure sample stream isolation for continuous gas analyzers.
Direct tube makeup onto DP transmitter impulse lines ensures leak-free differential pressure measurement.
Panel-mounted bulkhead design allows neat pass-through installation on offshore pneumatic control consoles.
Rated up to 6,000 / 10,000 PSI for safe grab-sample isolation on high-pressure steam and hydrocarbon process lines.
Bubble-tight Class VI shutoff ensures zero fugitive methane emission during high-pressure gas refueling.
Repeatable 25+ reassembly cycle life without loss of vacuum-tight helium leak integrity.
Pioneer Industries’ Stainless Steel High Pressure Needle Valve Female to Female 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 installation protocols for Stainless Steel Integrated Bonnet Needle Valve Tube to Tube.
A Stainless Steel Integrated Bonnet Needle Valve Tube to Tube is an advanced instrumentation flow control valve featuring an integral one-piece body and precision double-ferrule compression fittings on both inlet and outlet ports. Instead of using pipe threads, it swages directly onto metal tubing. When the nut is tightened 1-1/4 turns past finger-tight, the front ferrule is driven into the body socket to create a primary fluid-tight seal on both the body and the tube OD, while the case-hardened back ferrule bites into the tubing to provide exceptional mechanical grip and vibration resistance without twisting the tube.
Threaded pipe connections require PTFE thread tape or liquid sealants, which can shred or wash into the flow stream, clogging delicate analytical sensor orifices, chromatograph columns, and solenoid valves. In contrast, Tube-to-Tube compression valves require zero sealants, completely eliminating contamination. Furthermore, compression fittings provide superior resistance to vibration fatigue, eliminate the need for male-to-tube adapters, and can be repeatedly disconnected and remade without degrading sealing integrity.
Our standard Tube-to-Tube series is rated up to 6,000 PSI (414 Bar) at 200°C (392°F), with heavy-body models rated up to 10,000 PSI (700 Bar), matching the maximum burst strength of high-pressure seamless tubing per ASME B31.3. Standard PTFE chevron packing supports temperatures from -54°C to 232°C (-65°F to 450°F), while optional PEEK or Grafoil packing enables service up to 315°C (600°F).
Pioneer Industries manufactures Tube to Tube needle valves for fractional tubing from 1/8″ to 1″ OD (1/8″, 1/4″, 3/8″, 1/2″, 3/4″, 1″) and metric tubing from 3 mm to 25 mm OD (3mm, 6mm, 8mm, 10mm, 12mm, 16mm, 20mm, 25mm). The compression ferrule geometry is precision-engineered to be 100% interchangeable and intermixable with industry-standard double-ferrule brands including Swagelok®, Parker A-LOK®, and DOK-LOK®.
In high-vibration environments—such as turbine fuel skids, offshore drill rigs, and reciprocating gas compressors—conventional threaded or bolted bonnet valves are vulnerable to joint relaxation, resulting in hazardous bonnet back-off and high-pressure leaks. The integral bonnet design eliminates the body-bonnet joint entirely, machining the bonnet cavity directly into the solid bar-stock body. This creates an unshakeable, one-piece structure that cannot separate under cyclic mechanical vibration or hydraulic pressure shocks.
We offer three interchangeable stem tip configurations: (1) Vee Tip: hardened blunt point for positive bubble-tight shut-off; (2) Regulating Tip: precision tapered profile offering linear flow coefficient control for fine metering of carrier gases and calibration standards; and (3) Soft Tip: PCTFE or PEEK non-rotating insert delivering 100% bubble-tight sealing on ultra-light gases like hydrogen and helium.
To install, insert the deburred and squared stainless steel tubing completely into the valve socket until it bottoms firmly against the internal shoulder. Tighten the nut finger-tight. For sizes 1/4″ to 1″ (6 mm to 25 mm), hold the valve body with a backup wrench and tighten the nut 1-1/4 turns with an open-end wrench. For 1/8″ and 3 mm tubing, tighten 3/4 turn. Use a standard gap inspection gauge to confirm proper swaging clearance before system pressurization.
Yes. Every Tube to Tube needle valve is available with an optional panel mounting nut and threaded bonnet barrel. This enables clean bulkhead mounting through instrument cabinet walls, analyzer racks, and mobile test cart panels, providing secure front-panel knob actuation while isolating the tubing runs behind the panel.
Every single valve undergoes 100% factory inspection, including hydrostatic shell proof testing at 1.5× working pressure and 100% dry nitrogen pneumatic testing at 1,200 PSI (80 Bar) for seat and gland leak-tightness. Each valve is stamped with its unique heat code, brand, and size, and accompanied by an EN 10204 3.1 Material Test Certificate providing complete chemical and mechanical traceability.
Pioneer Industries provides comprehensive project supply support, including ex-stock delivery on standard fractional and metric sizes, custom tagging and laser marking, competitive manufacturer-direct pricing with an MOQ of 1 piece, export crating, and rapid delivery to over 85 countries worldwide.
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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.
