VN217 Sleeve Needle Valve 1/2 Inch ISO Stainless Steel Handwheel
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217-1002-04
Internal thread needle valve 1/2 inch stainless steel acc. to ISO 7-1 (EN 10226-1), F-F, body: A182 F316 stainless steel, needle: A182 F6, shaft sealing made of PTFE + graphite, temperature range: -30°C to +260°C, nominal pressure: 205 bar / 3000 psi, actuation: Handwheel
Nominal width :
DN15 - 1/2'' inch
Needle:
Edelstahl A182 F6
Body:
Stainless Steel
Shaft seal:
PTFE + graphite
Actuation :
Handwheel
Price
€34.92
€41.55 incl. VAT
Delivery Time:
in stock
Available:
In Stock
VN217 Sleeve Needle Valve 1 Inch ISO Stainless Steel Handwheel
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217-1002-06
Internally threaded needle valve 1 inch stainless steelacc. to ISO 7-1 (EN 10226-1), F-F, body: A182 F316 stainless steel, needle: A182 F6, shaft sealing made of PTFE + graphite, temperature range: -30°C to +260°C, nominal pressure: 205 bar / 3000 psi, actuation: Handwheel
Nominal width :
DN25 - 1'' inch
Needle:
Edelstahl A182 F6
Body:
Stainless Steel
Shaft seal:
PTFE + graphite
Actuation :
Handwheel
Price
€66.76
€79.44 incl. VAT
Delivery Time:
in stock
Available:
In Stock
VN217 Sleeve Needle Valve 3/4 Inch ISO Stainless Steel Handwheel
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217-1002-05
Internally threaded needle valve 3/4 inch stainless steelacc. to ISO 7-1 (EN 10226-1), F-F, body: A182 F316 stainless steel, needle: A182 F6, shaft sealing made of PTFE + graphite, temperature range: -30°C to +260°C, nominal pressure: 205 bar / 3000 psi, actuation: Handwheel
Nominal width :
DN20 - 3/4'' inch
Needle:
Edelstahl A182 F6
Body:
Stainless Steel
Shaft seal:
PTFE + graphite
Actuation :
Handwheel
Price
€48.28
€57.45 incl. VAT
Delivery Time:
in stock
Available:
In Stock
VN217 Sleeve Needle Valve 1/4 inch ISO Stainless Steel Handwheel
Product number
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217-1002-02
Internally threaded needle valve 1/4 inch stainless steelacc. to ISO 7-1 (EN 10226-1), F-F, body: A182 F316 stainless steel, needle: A182 F6, shaft sealing made of PTFE + graphite, temperature range: -30°C to +260°C, nominal pressure: 205 bar / 3000 psi, actuation: Handwheel
Nominal width :
DN8- 1/4'' inch
Needle:
Edelstahl A182 F6
Body:
Stainless Steel
Shaft seal:
PTFE + graphite
Actuation :
Handwheel
Price
€24.02
€28.58 incl. VAT
Delivery Time:
in stock
Available:
In Stock
VN217 Sleeve Needle Valve 1 1/4 in. ISO Stainless Steel Handwheel
Product number
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217-1002-07
Internally threaded needle valve 1 1/4 inch stainless steelacc. to ISO 7-1 (EN 10226-1), F-F, body: A182 F316 stainless steel, needle: A182 F6, shaft sealing made of PTFE + graphite, temperature range: -30°C to +260°C, nominal pressure: 205 bar / 3000 psi, actuation: Handwheel
Nominal width :
DN32 - 1 1/4'' inch
Needle:
Edelstahl A182 F6
Body:
Stainless Steel
Shaft seal:
PTFE + graphite
Actuation :
Handwheel
Price
€125.62
€149.49 incl. VAT
Delivery Time:
in stock
Available:
In Stock
VN217 Sleeve Needle Valve 2 Inch ISO Stainless Steel Handwheel
Product number
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217-1002-09
Internally threaded needle valve 2 inch stainless steelacc. to ISO 7-1 (EN 10226-1), F-F, body: A182 F316 stainless steel, needle: A182 F6, shaft sealing made of PTFE + graphite, temperature range: -30°C to +260°C, nominal pressure: 205 bar / 3000 psi, actuation: Handwheel
Nominal width :
DN50 - 2'' inch
Needle:
Edelstahl A182 F6
Body:
Stainless Steel
Shaft seal:
PTFE + graphite
Actuation :
Handwheel
Price
€216.10
€257.16 incl. VAT
Delivery Time:
in stock
Available:
In Stock
VN217 Sleeve Needle Valve 3/8" ISO Stainless Steel Handwheel
Product number
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217-1002-03
Internal thread needle valve 3/8 inch stainless steelAcc. to ISO 7-1 (EN 10226-1), F-F, body: A182 F316 stainless steel, needle: A182 F6, shaft sealing made of PTFE + graphite, temperature range: -30°C to +260°C, nominal pressure: 205 bar / 3000 psi, actuation: Handwheel
Nominal width :
DN10 - 3/8'' inch
Needle:
Edelstahl A182 F6
Body:
Stainless Steel
Shaft seal:
PTFE + graphite
Actuation :
Handwheel
Price
€29.22
€34.77 incl. VAT
Delivery Time:
in stock
Available:
In Stock
VN217 Sleeve Needle Valve 1 1/2 inch ISO Stainless Steel Handwheel
Product number
Copy to clipboard
217-1002-08
Internally threaded needle valve 1 1/2 inch stainless steelacc. to ISO 7-1 (EN 10226-1), F-F, body: A182 F316 stainless steel, needle: A182 F6, shaft sealing made of PTFE + graphite, temperature range: -30°C to +260°C, nominal pressure: 205 bar / 3000 psi, actuation: Handwheel
Nominal width :
DN40 - 1 1/2'' inch
Needle:
Edelstahl A182 F6
Body:
Stainless Steel
Shaft seal:
PTFE + graphite
Actuation :
Handwheel
Price
€173.65
€206.64 incl. VAT
Delivery Time:
in stock
Available:
In Stock
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Frequently Asked Questions – Needle Valves
A needle valve – also called a needle stop valve or high-pressure needle valve – is a high-precision control fitting for the stepless regulation of flow rates and pressures in pipeline systems. Unlike a ball valve or butterfly valve, which are primarily designed for fully open or fully closed operation, a needle valve enables fine, controlled throttling of the flow cross-section.
The design is straightforward and reliable:
The design is straightforward and reliable:
- Needle-shaped plunger – The tapered or cylindrical plunger is the heart of the valve. It moves axially towards or away from the valve seat.
- Threaded spindle – A fine thread translates the rotation of the handwheel into a precisely controlled axial movement of the plunger. Many turns of the handwheel produce a small, exactly defined stroke – enabling the characteristic fine metering capability.
- Valve seat – The plunger seals against a conical or flat seat. In the fully closed position, the needle valve provides tight, leak-free shut-off.
- Handwheel or actuator – Manual operation via handwheel is standard; actuator versions are available for automated systems.
Needle valves are used across a wide range of industries and applications wherever precise flow or pressure control is needed:
- Gas and compressed air systems – Needle valves are a preferred fitting for regulating pressurised gases. They are widely used at gas tanks (e.g. propane, nitrogen, CO₂) to precisely meter gas flow. In compressed air systems they are used to set control air flows, throttle bypass lines, and safety shut-offs.
- Instrumentation and measurement – Needle valves serve as isolation valves at instrument tapping points, pressure gauges, transmitters, and test connections. They allow precise opening and closing of medium access to measuring instruments without pressure surges.
- Hydraulics – In hydraulic systems to control oil flow, pressure drop, and actuator speeds. The robust high-pressure design withstands the high system pressures of hydraulic installations.
- Process engineering, chemicals, and pharmaceuticals – Fine dosing of chemicals, solvents, and process liquids. Stainless steel versions offer optimum resistance to corrosive and aggressive media.
- Power generation and steam systems – Isolation and fine throttling at instrument and sampling lines in steam, water, and condensate systems.
- Laboratory and analytical equipment – High-precision flow setting for gas chromatography, analytical instruments, and laboratory gas lines.
- Water and wastewater treatment – Precise regulation and dosing in water treatment plants, dosing stations, and sampling systems.
FERGO offers needle valves in two main materials, each optimised for different operating conditions:
- Stainless steel needle valves – The preferred choice for corrosive, aggressive, or moist media. Stainless steel offers excellent resistance to water, acids (at certain concentrations), alkalis, solvents, and many chemical process media. Also suitable for food, pharmaceutical, and high-purity applications where corrosion products in the medium are unacceptable. Stainless steel needle valves are more robust, more durable, and lower maintenance than brass valves – ideal for long-term industrial use under demanding conditions.
- Carbon steel with galvanised surface treatment – A more economical alternative for neutral media and standard conditions without aggressive chemicals. The galvanised coating provides basic protection against moisture corrosion. Well suited for compressed air, neutral gases, oil, and water in non-aggressive environments. Among the best-selling types in the FERGO range – robust construction for high pressures at an economical price point.
The spindle packing is the seal between the valve spindle and the body – it prevents medium from escaping along the spindle to atmosphere. FERGO needle valves are fitted with a high-quality PTFE+graphite packing that offers decisive advantages:
- PTFE (polytetrafluoroethylene) – Universally resistant to virtually all acids, alkalis, and solvents. Very low friction ensures easy handwheel operation even after long periods of inactivity. Suitable for food and pharmaceutical contact.
- Graphite component – Significantly improves the high-temperature performance of the packing. Graphite retains its sealing properties even at elevated temperatures where pure PTFE would soften or creep. The combination makes the packing suitable for steam, hot media, and demanding process conditions.
- Performance under demanding conditions – High pressures, high temperatures, aggressive media, and frequent operation place high demands on the packing. The PTFE+graphite packing is specifically designed for these requirements, providing long-term reliable sealing with minimal maintenance.
FERGO offers needle valves with two common thread types, used in the majority of industrial and process systems worldwide:
- NPT (National Pipe Thread) – Tapered pipe thread to American standard (ANSI/ASME B1.20.1). NPT seals through the tapered thread engagement itself (taper-to-taper seal), often additionally with PTFE tape. Widely used in North American systems and internationally oriented plants, instrumentation systems, oilfield fittings, and instrument connections to American standard. Typical sizes in inches: 1/8", 1/4", 3/8", 1/2", 3/4", 1".
- ISO 7-1 / Rp (female thread, parallel) – Parallel pipe thread to European/international standard (DIN EN 10226, ISO 7-1). Sealing is achieved via a flat gasket or O-ring at the thread entry, not through the thread itself. Standard in European systems, mechanical and plant engineering, HVAC, and water/gas installations in Germany and Europe. Sizes in inch nominal: Rp 1/8" to Rp 1".
The needle valve with vent/drain connection is a special version with an additional small port on the valve body that allows controlled venting or draining of the system. It is a standout product in the FERGO range and is particularly valuable in the following situations:
- Pressure relief before maintenance – Before fittings, instruments, or pipeline sections are serviced or replaced, system pressure must be safely relieved. The vent connection allows controlled, targeted pressure release – without having to open the entire system.
- Liquid draining – In liquid systems, the drain connection allows a pipeline section to be completely emptied, e.g. before winterisation, cleaning, or pressure testing.
- Pressure testing (hydro and pneumatic tests) – When pressure-testing pipelines and vessels, the vent connection enables filling and bleeding (removing air pockets) of the test volume, and controlled release of test pressure after the test.
- Sampling – In measurement and analytical lines, the vent/drain connection can be used for targeted extraction of small medium quantities for analysis.
- Instrumentation manifolds – In pressure measurement manifolds and instrumentation assemblies, the vent/drain port is a standard feature for safe operation and maintenance without system interruption.
Needle valves and ball valves are both widely used shut-off and control fittings, but they fulfil different functions:
- Ball valve – Optimised for rapid, full opening and closing (quarter-turn operation). The ball valve provides a full bore cross-section in the fully open position (nominal size = flow cross-section) and therefore minimal pressure loss. Ball valves offer limited intermediate throttling positions: a ball valve is not designed for sustained throttling – the ball and seat would be damaged by cavitation and erosive wear when operated at partial opening over time.
- Needle valve – Optimised for precise, stepless flow metering and pressure control. The needle valve can be adjusted continuously and reproducibly between fully open and fully closed. It is specifically designed for sustained throttling operation – the tapered plunger and seat are engineered for flow stresses. Drawback: higher pressure drop in the fully open position and slower operation (multiple turns).
Needle valves are referred to by many engineers as high-pressure needle valves – and for good reason:
- Robust, compact solid-body design – The needle valve body is machined or forged from solid material, without a large internal cavity. This massive construction allows it to withstand extremely high system pressures that would overstress other valve types. Hydraulic needle valves frequently cover pressure ranges of several hundred bar.
- Small flow cross-section – The narrow flow path of the needle valve is structurally simpler to design for pressure resistance than the wide bores of ball valves or butterfly valves. The needle geometry creates controlled, laminar flow without critical pressure surges.
- Fine-thread spindle – The fine-thread spindle transmits high closing forces to the seat and ensures leak-free shut-off even at high differential pressures.
- Suitable packing – The PTFE+graphite packing seals the spindle reliably under high pressure and at elevated temperatures.
- Typical high-pressure applications at FERGO: Hydraulic systems, compressed air systems at several bar, gas lines (propane, nitrogen, CO₂ at cylinder pressure), high-pressure instrumentation, pressure test rigs, high-pressure chemical reactors.