Pioneer Industries manufactures high-precision Stainless Steel Integrated Bonnet Needle Valves with Female to Female threaded connections. Featuring an integral one-piece forged or bar-stock body where the bonnet is machined directly into the valve housing, this design completely eliminates the body-to-bonnet gasket joint and potential leak paths. Rated up to 6,000 PSI (414 Bar) and 10,000 PSI (700 Bar), it delivers superior vibration resistance, compact panel mounting dimensions, and bubble-tight flow shut-off for critical pneumatic and analytical 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. | Female Thread Size | Orifice (in) | Cv | A (Length in) | B (Height in) | C (Handle in) | Pressure Rating |
|---|---|---|---|---|---|---|---|
| PI-IBNV-FF-02F | 1/8″ Female NPT | 0.078″ | 0.12 | 1.89″ | 2.28″ | 1.57″ | 6,000 PSI |
| PI-IBNV-FF-04F | 1/4″ Female NPT | 0.156″ | 0.35 | 2.13″ | 2.52″ | 1.85″ | 6,000 PSI |
| PI-IBNV-FF-06F | 3/8″ Female NPT | 0.250″ | 0.70 | 2.44″ | 2.91″ | 2.16″ | 6,000 PSI |
| PI-IBNV-FF-08F | 1/2″ Female NPT | 0.312″ | 1.20 | 2.83″ | 3.38″ | 2.56″ | 6,000 PSI |
| PI-IBNV-FF-12F | 3/4″ Female NPT | 0.312″ | 1.50 | 3.31″ | 3.78″ | 2.95″ | 6,000 PSI |
| PI-IBNV-FF-16F | 1″ Female NPT | 0.312″ | 1.90 | 3.78″ | 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 Female to Female components are deployed across critical fluid systems requiring reliable flow control, high working pressure, and zero leakage.
Male inlet threads directly into pipe headers, eliminating pipe nipples and saving critical enclosure space.
Precision micro-flow metering of corrosion inhibitors, biocides, methanol, and glycol into high-pressure flowlines.
Zero-deadleg, ultra-fine flow control of carrier gases, analytical calibration standards, and sensitive sample streams.
Critical pressure control and shut-off in high-pressure hydraulic actuator circuits, WHCP panels, and ESD systems.
High-temperature Grafoil-packed configurations provide leak-free sampling and isolation on boiler headers and vessels.
Repetitive, high-cycle throttling and pressure venting on test benches, valve calibration stands, and charging manifolds.
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 Female to Female.
An Integrated Bonnet (Integral Bonnet) Needle Valve Female to Female is a compact flow regulation and isolation valve where the valve body and bonnet cavity are machined from a single integral piece of solid bar stock. Both inlet and outlet ports feature internal female pipe threads (NPT or BSP). Because there is no separate bonnet screwed or bolted into the body, this construction completely eliminates the body-to-bonnet gasket joint. This eliminates external leak paths, prevents accidental bonnet loosening under severe pipeline vibration, and provides maximum pressure containment in a lightweight envelope.
In screwed bonnet and union bonnet valves, the bonnet is a separate component attached to the body via threads or a union nut, requiring a sealing gasket or metal-to-metal sealing joint. While union bonnets excel in extreme high-pressure severe service, they are heavier and larger. An integral bonnet valve eliminates the joint entirely, making it substantially lighter, more compact, and inherently immune to joint leaks caused by vibration, thermal shock, or improper field reassembly. It is the premier design for instrumentation panels and analytical systems.
Pioneer Industries manufactures Integrated Bonnet Female to Female Needle Valves rated for working pressures up to 6,000 PSI (414 Bar) as standard at 200°C, with heavy-body configurations rated up to 10,000 PSI (700 Bar). When fitted with virgin PTFE chevron packing, the operating temperature span is -54°C to 232°C (-65°F to 450°F). For high-temperature duties, optional PEEK or Grafoil packing elevates temperature capability up to 315°C (600°F).
We produce Female to Female integrated bonnet needle valves in standard port sizes of 1/8″, 1/4″, 3/8″, 1/2″, 3/4″, and 1″. Standard thread specifications include American National Standard Taper Pipe Threads (NPT per ASME B1.20.1), British Standard Pipe Taper (BSPT per ISO 7/1), and British Standard Pipe Parallel (BSPP per ISO 228/1), all manufactured to class-leading gauge tolerances.
Pioneer Industries offers three distinct stem tip geometries: (1) Vee Tip: hardened point engineered for positive bubble-tight shut-off and moderate throttling; (2) Regulating Tip: precision tapered profile providing linear flow characteristic and micro-metering accuracy; and (3) Soft Tip: incorporating a PCTFE or Delrin insert for repetitive, 100% bubble-tight sealing on ultra-clean gases like nitrogen, helium, and compressed air.
The valve features an external gland packing nut positioned directly above the body. This allows plant technicians to easily perform in-line packing adjustments with a simple hand wrench while the valve remains fully connected in the process line. Unlike designs where packing is buried inside, the live-loadable packing nut ensures rapid maintenance and continuous zero-fugitive-emission sealing.
Yes. Pioneer Industries supplies an optional panel mounting kit consisting of a precision-machined panel nut and threaded bonnet collar. This allows the valve to be securely bulkhead-mounted into instrumentation control panels, test benches, and gas distribution consoles with clean aesthetics and vibration-proof stability.
Valves are manufactured from solid ASTM A479 / ASME SA479 Grade 316/316L dual-certified stainless steel as standard. For specialized corrosive applications, we also manufacture in SS 304, Duplex 2205 (UNS S31803), Super Duplex 2507 (UNS S32750), Hastelloy C-276, and Monel 400. All materials are certified to NACE MR0175 / ISO 15156 for resistance to sulfide stress cracking in sour gas services.
Every valve manufactured by Pioneer Industries undergoes 100% factory pressure testing in compliance with API 598 and MSS-SP-99. This includes a hydrostatic shell test at 1.5 times the maximum rated pressure and a pneumatic seat leak test using dry nitrogen at 1,200 PSI (80 Bar) to guarantee zero bubble leakage. Full EN 10204 3.1 Material Test Reports accompany every dispatch.
Pioneer Industries is an ISO 9001:2015, CE-PED certified manufacturer based in Mumbai, India, with over three decades of precision manufacturing excellence. We maintain extensive finished stocks for immediate dispatch, support custom OEM tagging and client specifications, export to over 85 countries worldwide, and provide direct manufacturer pricing without intermediary markups.
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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.
