Engineered for severe hydraulic and pneumatic isolation, our Stainless Steel High Pressure Needle Valve Female to Female delivers precision micro-metering and bubble-tight shut-off up to 10,000 PSI (700 Bar) and 20,000 PSI (1,380 Bar). CNC-machined from solid ASTM A479 316/316L bar stock with female NPT/BSP ports, non-rotating hardened vee tip, and packing below actuating threads.
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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. | Nominal Thread Size | End Connection | Orifice in | Cv | L in | H in | W in | Working Pressure |
|---|---|---|---|---|---|---|---|---|
| PI-HPNV-FF-02F | 1/8″ Female NPT | 1/8″ NPT Female x Female | 0.156 | 0.28 | 2.15 | 3.10 | 2.00 | 10,000 PSI |
| PI-HPNV-FF-04F | 1/4″ Female NPT | 1/4″ NPT Female x Female | 0.187 | 0.45 | 2.44 | 3.35 | 2.16 | 10,000 PSI |
| PI-HPNV-FF-06F | 3/8″ Female NPT | 3/8″ NPT Female x Female | 0.250 | 0.70 | 2.68 | 3.62 | 2.56 | 10,000 PSI |
| PI-HPNV-FF-08F | 1/2″ Female NPT | 1/2″ NPT Female x Female | 0.312 | 1.10 | 2.99 | 4.09 | 2.95 | 10,000 PSI |
| PI-HPNV-FF-12F | 3/4″ Female NPT | 3/4″ NPT Female x Female | 0.393 | 1.80 | 3.46 | 4.65 | 3.54 | 10,000 PSI |
| PI-HPNV-FF-16F | 1″ Female NPT | 1″ NPT Female x Female | 0.500 | 2.40 | 4.13 | 5.31 | 4.33 | 10,000 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 High Pressure Needle Valve Female to Female components are deployed across critical fluid systems requiring reliable flow control, high working pressure, and zero leakage.
Direct installation on process piping and headers providing bubble-tight shut-off for safe gauge calibration and replacement.
Precision micro-flow metering of corrosion inhibitors, biocides, methanol, and glycol into high-pressure flowlines.
Zero-deadleg, ultra-fine flow control of carrier gases and calibration standards in testing facilities.
Critical pressure control in high-pressure hydraulic actuator circuits, wellhead control panels (WHCP), and ESD systems.
High-temperature Grafoil-packed configurations provide leak-free sampling on boiler headers and heat exchangers.
Repetitive, high-cycle throttling and pressure venting on test benches and gas cylinder 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 High Pressure Needle Valve Female to Female.
A Stainless Steel High Pressure Needle Valve Female to Female is an ultra-heavy-duty multi-turn linear flow control valve featuring internal (female) threaded connections at both inlet and outlet ports. It is designed to regulate fluid flow with micro-incremental throttling precision or provide positive bubble-tight shut-off under severe pressures up to 10,000 PSI (700 Bar) and 20,000 PSI (1,380 Bar). Machined from solid ASTM A479 316/316L stainless steel bar stock without welds, it utilizes a non-rotating hardened stem tip and gland packing below the actuating threads to ensure zero leakage and long cycle life.
The Female to Female (F x F) needle valve configuration is widely installed in in-line process piping, instrument impulse tubing runs, and gauge isolation headers where male-threaded pipe nipples, male tube adapters, or male sensor connections enter from both sides. It is standard for differential pressure transmitter lines, hydraulic power units (HPUs), chemical injection manifolds, high-pressure test benches, and oilfield wellhead monitoring skids.
Pioneer Industries manufactures High Pressure Female to Female Needle Valves rated for working pressures up to 10,000 PSI (700 Bar) at 200°C (392°F) as standard, and up to 20,000 PSI (1,380 Bar) at 120°C (248°F) in our severe-service series. With PTFE chevron gland packing, temperature capability ranges from -54°C to 200°C (-65°F to 392°F). When fitted with die-formed high-density Grafoil packing, the valve operates safely in superheated steam and thermal fluid loops up to 500°C (932°F).
In conventional rotating stem valves, the needle tip rotates as it seats, causing severe friction, metal galling, and seat scoring ('wire-drawing') against the body seat under high differential pressure. Pioneer Industries incorporates a precision two-piece stem where the lower hardened tip is decoupled from the upper driving stem. Upon contacting the body seat, the lower tip stops rotating instantly and drives strictly downward with axial force. This preserves the orifice seat geometry, lowers handwheel operating torque, and guarantees repetitive bubble-tight Class VI shut-off.
Locating the PTFE or Grafoil gland packing below the actuating threads completely isolates the stem drive threads and factory lubricant from the process media. In high-pressure chemical, slurry, or steam services, process fluids cannot wash away thread lubricants or cause corrosive binding and thread seizure. Concurrently, metal wear particles from the threads cannot migrate into the packing or process stream, extending service life by over 300%.
We manufacture Female to Female needle valves in standard port sizes from 1/8″ to 1″ (and up to 2″ for specialized piping headers). Thread forms 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 CNC-machined to precise thread engagement tolerances.
A Screwed Bonnet features a compact one-piece body where the bonnet assembly threads directly into the valve body cavity, ideal for space-constrained panels. A Union Bonnet incorporates a heavy-duty outer union ring nut that pulls the bonnet flange firmly against the valve body without twisting the body-to-bonnet seal. The union bonnet provides exceptional structural security against accidental bonnet loosening during valve opening under extreme hydraulic pulsation and resists severe thermal expansion shocks.
Yes. Pioneer Industries manufactures high-pressure needle valves fully certified to NACE MR0175 / ISO 15156 for sour oil and gas upstream production. All wetted components are machined from solution-annealed ASTM A479 316/316L or exotic alloys (Duplex 2205, Super Duplex 2507, Hastelloy C-276, Monel 400) with strictly controlled hardness values below 22 HRC to prevent sulfide stress cracking (SSC) and hydrogen embrittlement.
Every individual valve is 100% factory tested in accordance with API 598 and MSS SP-99 standards before dispatch. Testing includes a hydrostatic shell test at 1.5 times the rated working pressure (15,000 PSI for 10,000 PSI valves, and 30,000 PSI for 20,000 PSI valves) using demineralized water, followed by a pneumatic nitrogen seat leak test at 1,200 psig (80 Bar) with zero allowable seat leakage. Helium mass spectrometer leak testing down to 1 x 10⁻⁹ std cm³/s is available on demand.
Yes. Pioneer Industries High Pressure Needle Valves feature external bonnet threads and heavy-duty stainless steel panel mounting nuts, enabling secure, rigid through-panel mounting on control consoles and analyzer panels up to 12mm thickness. If gland weeping occurs after long service cycles, the external packing bolt can be retightened clockwise in 1/8-turn increments while under pressure to re-compress the chevron packing rings and restore bubble-tight sealing.
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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.
