Needle Valves
Needle valves are essential for controlling fluid flow with high precision in industrial and commercial applications. These valves feature a small, tapered stem that allows for fine adjustments, making them ideal for systems that require accurate flow regulation. Commonly used in industries such as chemical processing, oil and gas, water treatment, and instrumentation, needle valves help maintain efficiency and process stability.
Types of Needle Valves
Centro offers a variety of needle valves designed to meet different application requirements, including:
- Standard needle valves for general-purpose flow control in low- to medium-pressure systems.
- High-pressure needle valves built for demanding applications with extreme pressure conditions.
- Instrumentation needle valves for precise flow adjustments in analytical and laboratory settings.
Choosing the Right Needle Valve
Selecting the appropriate needle valve depends on factors such as system pressure, temperature, fluid type, and required flow control precision. Consider whether the valve needs to handle gases or liquids, as well as the level of adjustability required for your application.
Browse our selection of needle valves online or contact our team for expert assistance in choosing the right solution for your system.
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Multiport design reduces the number of gauge and other instrument connections to permanent piping installations, decreasing possible leak pathsOptional bleed plugs further allow pressure to be bled off without disturbing the permanent piping installation100% helium leak tested to 1 x 10-4 ml/s for guaranteed performance and reliability
$215.20$396.25
Available for Purchase
Subject to factory lead times
100% helium leak tested to 1 x 10-4 ml/s for guaranteed performance and reliabilityReplaceable Acetal seat and straight through porting for bidirectional, high capacity flow and easy roddable cleaningBlow-out proof stem provides a secondary stem seal in the full open position
$118.27$217.77
Should ship between 03 Nov and 10 Nov
Subject to factory lead times
100% helium leak tested to 1 x 10-4 ml/s for guaranteed performance and reliabilityReplaceable Acetal seat and straight through porting for bidirectional, high capacity flow and easy roddable cleaningBlow-out proof stem provides a secondary stem seal in the full open position
$48.19$88.72
Should ship between 03 Nov and 10 Nov
Subject to factory lead times
100% helium leak tested to 1 x 10-4 ml/s for guaranteed performance and reliabilityBlow-out proof stem provides a secondary stem seal in the full open positionFKM o-ring seal and PTFE back-up ring below the stem threads to protect from corrosion and galling; PTFE or Graphite packing optional (certain NPT sizes only)
$115.42$212.52
Should ship between 03 Nov and 10 Nov
Subject to factory lead times
100% helium leak tested to 1 x 10-4 ml/s for guaranteed performance and reliabilityBlow-out proof stem provides a secondary stem seal in the full open positionFKM o-ring seal and PTFE back-up ring below the stem threads to protect from corrosion and galling; PTFE or Graphite packing optional (certain NPT sizes only)
$47.05$86.63
Should ship between 03 Nov and 10 Nov
Subject to factory lead times
3/8" needle valve, female x female.
$65.65
Should ship between 17 Nov and 01 Dec
Subject to factory lead times
100% helium leak tested to 1 x 10-4 ml/s for guaranteed performance and reliabilityBlow-out proof stem provides a secondary stem seal in the full open positionFKM o-ring seal and PTFE back-up ring below the stem threads to protect from corrosion and galling; PTFE or Graphite packing optional (certain NPT sizes only)
$98.59$212.52
Should ship between 03 Nov and 10 Nov
Subject to factory lead times
100% helium leak tested to 1 x 10-4 ml/s for guaranteed performance and reliabilityBlow-out proof stem provides a secondary stem seal in the full open positionFKM o-ring seal and PTFE back-up ring below the stem threads to protect from corrosion and galling; PTFE or Graphite packing optional (certain NPT sizes only)
$47.05$86.63
Should ship between 03 Nov and 10 Nov
Subject to factory lead times
Combines isolating and venting in a single valve, eliminating the need for tubing and fittingsBlock valve isolates the downstream process fluids and the bleed valve exhausts upstream fluids enabling static pressure transmitters, switches or gauges to be removed without disturbing the permanent piping installationBlock valve is located on the right and the bleed valve is located on top in a 90º orientation, venting is to the left
$314.11$385.61
In Stock (56)Ships within 1 business day
Available in block, single flange, or double flange connection for remote or direct installationDesigned for use with differential pressure transmitters incorporating two isolation valves and an equalizing valve in differential pressure measurement100% helium leak tested to 1 x 10-4 ml/s for guaranteed performance and reliability
$345.43$496.53
Should ship between 03 Nov and 10 Nov
Subject to factory lead times
Designed for use with differential pressure transmitters incorporating two isolation valves, two equalizing valves and a vent valve required in natural gas applicationsFlare Pattern™ valve configuration provides maximum clearance for fingers during operationSoft tip valves feature a patented Acetal non-rotating soft tip stem, and a back-up metal-to-metal seal (U.S. Patent 6,820,857)
$388.58$558.53
In Stock (68)Ships within 1 business day
Designed for use with differential pressure transmitters incorporating two isolation valves, two equalizing valves and a vent valve required in natural gas applicationsFlare Pattern™ valve configuration provides maximum clearance for fingers during operationSoft tip valves feature a patented Acetal non-rotating soft tip stem, and a back-up metal-to-metal seal (U.S. Patent 6,820,857)
$500.58$614.52
In Stock (13)Ships within 1 business day
Combines isolating and venting in a single valve, eliminating the need for tubing and fittingsBlock valve isolates the downstream process fluids and the bleed valve exhausts upstream fluids enabling static pressure transmitters, switches or gauges to be removed without disturbing the permanent piping installationBlock valve is located on the right and the bleed valve is located on top in a 90º orientation, venting is to the left
$215.36$264.38
In Stock (68)Ships within 1 business day
Designed for use with differential pressure transmitters incorporating two isolation valves, two equalizing valves and a vent valve required in natural gas applicationsFlare Pattern™ valve configuration provides maximum clearance for fingers during operationSoft tip valves feature a patented Acetal non-rotating soft tip stem, and a back-up metal-to-metal seal (U.S. Patent 6,820,857)
$290.60$356.73
In Stock (69)Ships within 1 business day
Compact design is ideal for installations with limited space, such as behind panels or in cabinetsDesigned for use with differential pressure transmitters incorporating two isolation valves and an equalizing valve in differential pressure measurement100% helium leak tested to 1 x 10-4 ml/s for guaranteed performance and reliability
$330.13$405.26
In Stock (48)Ships within 1 business day
Designed for use with differential pressure transmitters in liquid level applicationsAvailable in either single flange or double flange connection for direct installation100% helium leak tested to 1 x 10-4 ml/s for guaranteed performance and reliability
$438.82$538.68
In Stock (12)Ships within 1 business day
Available in block, single flange, or double flange connection for remote or direct installationDesigned for use with differential pressure transmitters incorporating two isolation valves and an equalizing valve in differential pressure measurement100% helium leak tested to 1 x 10-4 ml/s for guaranteed performance and reliability
$472.67$580.25
In Stock (106)Ships within 1 business day
Designed for use with differential pressure transmitters incorporating two isolation valves, two equalizing valves and a vent valve required in natural gas applicationsFlare Pattern™ valve configuration provides maximum clearance for fingers during operationSoft tip valves feature a patented Acetal non-rotating soft tip stem, and a back-up metal-to-metal seal (U.S. Patent 6,820,857)
$533.13$654.47
In Stock (10)Ships within 1 business day
Combines isolating and venting in a single valve, eliminating the need for tubing and fittingsBlock valve isolates the downstream process fluids and the bleed valve exhausts upstream fluids enabling static pressure transmitters, switches or gauges to be removed without disturbing the permanent piping installationBlock valve is located on the left side and the bleed valve is located on top in a 90º orientation, venting is to the right
$438.82$538.68
Low Stock (5)Ships within 1 business day
Designed for use with differential pressure transmitters incorporating two isolation valves, two equalizing valves and a vent valve required in natural gas applicationsFlare Pattern™ valve configuration provides maximum clearance for fingers during operationSoft tip valves feature a patented Acetal non-rotating soft tip stem, and a back-up metal-to-metal seal (U.S. Patent 6,820,857)
$578.74$710.46
In Stock (35)Ships within 1 business day
Designed for use with differential pressure transmitters in liquid level applicationsAvailable in either single flange or double flange connection for direct installation100% helium leak tested to 1 x 10-4 ml/s for guaranteed performance and reliability
$260.00$319.17
Should ship between 03 Nov and 10 Nov
Subject to factory lead times
Designed for use with differential pressure transmitters incorporating two isolation valves, two equalizing valves and a vent valve required in natural gas applicationsFlare Pattern™ valve configuration provides maximum clearance for fingers during operationSoft tip valves feature a patented Acetal non-rotating soft tip stem, and a back-up metal-to-metal seal (U.S. Patent 6,820,857)
$310.18$380.77
In Stock (49)Ships within 1 business day
Combines isolating and venting in a single valve, eliminating the need for tubing and fittingsBlock valve isolates the downstream process fluids and the bleed valve exhausts upstream fluids enabling static pressure transmitters, switches or gauges to be removed without disturbing the permanent piping installationBlock valve is located on the left side and the bleed valve is located on top in a 90º orientation, venting is to the right
$373.00$457.89
In Stock (11)Ships within 1 business day
Designed for use with differential pressure transmitters in liquid level applicationsAvailable in either single flange or double flange connection for direct installation100% helium leak tested to 1 x 10-4 ml/s for guaranteed performance and reliability
$438.82$538.68
Should ship between 03 Nov and 10 Nov
Subject to factory lead times
Multiport design reduces the number of gauge and other instrument connections to permanent piping installations, decreasing possible leak pathsOptional bleed plugs further allow pressure to be bled off without disturbing the permanent piping installation100% helium leak tested to 1 x 10-4 ml/s for guaranteed performance and reliability
$215.20$396.25
Available for Purchase
Subject to factory lead times
100% helium leak tested to 1 x 10-4 ml/s for guaranteed performance and reliabilityReplaceable Acetal seat and straight through porting for bidirectional, high capacity flow and easy roddable cleaningBlow-out proof stem provides a secondary stem seal in the full open position
$118.27$217.77
Should ship between 03 Nov and 10 Nov
Subject to factory lead times
100% helium leak tested to 1 x 10-4 ml/s for guaranteed performance and reliabilityReplaceable Acetal seat and straight through porting for bidirectional, high capacity flow and easy roddable cleaningBlow-out proof stem provides a secondary stem seal in the full open position
$48.19$88.72
Should ship between 03 Nov and 10 Nov
Subject to factory lead times
100% helium leak tested to 1 x 10-4 ml/s for guaranteed performance and reliabilityBlow-out proof stem provides a secondary stem seal in the full open positionFKM o-ring seal and PTFE back-up ring below the stem threads to protect from corrosion and galling; PTFE or Graphite packing optional (certain NPT sizes only)
$115.42$212.52
Should ship between 03 Nov and 10 Nov
Subject to factory lead times
100% helium leak tested to 1 x 10-4 ml/s for guaranteed performance and reliabilityBlow-out proof stem provides a secondary stem seal in the full open positionFKM o-ring seal and PTFE back-up ring below the stem threads to protect from corrosion and galling; PTFE or Graphite packing optional (certain NPT sizes only)
$47.05$86.63
Should ship between 03 Nov and 10 Nov
Subject to factory lead times
3/8" needle valve, female x female.
$65.65
Should ship between 17 Nov and 01 Dec
Subject to factory lead times
100% helium leak tested to 1 x 10-4 ml/s for guaranteed performance and reliabilityBlow-out proof stem provides a secondary stem seal in the full open positionFKM o-ring seal and PTFE back-up ring below the stem threads to protect from corrosion and galling; PTFE or Graphite packing optional (certain NPT sizes only)
$98.59$212.52
Should ship between 03 Nov and 10 Nov
Subject to factory lead times
100% helium leak tested to 1 x 10-4 ml/s for guaranteed performance and reliabilityBlow-out proof stem provides a secondary stem seal in the full open positionFKM o-ring seal and PTFE back-up ring below the stem threads to protect from corrosion and galling; PTFE or Graphite packing optional (certain NPT sizes only)
$47.05$86.63
Should ship between 03 Nov and 10 Nov
Subject to factory lead times
Combines isolating and venting in a single valve, eliminating the need for tubing and fittingsBlock valve isolates the downstream process fluids and the bleed valve exhausts upstream fluids enabling static pressure transmitters, switches or gauges to be removed without disturbing the permanent piping installationBlock valve is located on the right and the bleed valve is located on top in a 90º orientation, venting is to the left
$314.11$385.61
In Stock (56)Ships within 1 business day
Available in block, single flange, or double flange connection for remote or direct installationDesigned for use with differential pressure transmitters incorporating two isolation valves and an equalizing valve in differential pressure measurement100% helium leak tested to 1 x 10-4 ml/s for guaranteed performance and reliability
$345.43$496.53
Should ship between 03 Nov and 10 Nov
Subject to factory lead times
Designed for use with differential pressure transmitters incorporating two isolation valves, two equalizing valves and a vent valve required in natural gas applicationsFlare Pattern™ valve configuration provides maximum clearance for fingers during operationSoft tip valves feature a patented Acetal non-rotating soft tip stem, and a back-up metal-to-metal seal (U.S. Patent 6,820,857)
$388.58$558.53
In Stock (68)Ships within 1 business day
Designed for use with differential pressure transmitters incorporating two isolation valves, two equalizing valves and a vent valve required in natural gas applicationsFlare Pattern™ valve configuration provides maximum clearance for fingers during operationSoft tip valves feature a patented Acetal non-rotating soft tip stem, and a back-up metal-to-metal seal (U.S. Patent 6,820,857)
$500.58$614.52
In Stock (13)Ships within 1 business day
Combines isolating and venting in a single valve, eliminating the need for tubing and fittingsBlock valve isolates the downstream process fluids and the bleed valve exhausts upstream fluids enabling static pressure transmitters, switches or gauges to be removed without disturbing the permanent piping installationBlock valve is located on the right and the bleed valve is located on top in a 90º orientation, venting is to the left
$215.36$264.38
In Stock (68)Ships within 1 business day
Designed for use with differential pressure transmitters incorporating two isolation valves, two equalizing valves and a vent valve required in natural gas applicationsFlare Pattern™ valve configuration provides maximum clearance for fingers during operationSoft tip valves feature a patented Acetal non-rotating soft tip stem, and a back-up metal-to-metal seal (U.S. Patent 6,820,857)
$290.60$356.73
In Stock (69)Ships within 1 business day
Compact design is ideal for installations with limited space, such as behind panels or in cabinetsDesigned for use with differential pressure transmitters incorporating two isolation valves and an equalizing valve in differential pressure measurement100% helium leak tested to 1 x 10-4 ml/s for guaranteed performance and reliability
$330.13$405.26
In Stock (48)Ships within 1 business day
Designed for use with differential pressure transmitters in liquid level applicationsAvailable in either single flange or double flange connection for direct installation100% helium leak tested to 1 x 10-4 ml/s for guaranteed performance and reliability
$438.82$538.68
In Stock (12)Ships within 1 business day
Available in block, single flange, or double flange connection for remote or direct installationDesigned for use with differential pressure transmitters incorporating two isolation valves and an equalizing valve in differential pressure measurement100% helium leak tested to 1 x 10-4 ml/s for guaranteed performance and reliability
$472.67$580.25
In Stock (106)Ships within 1 business day
Designed for use with differential pressure transmitters incorporating two isolation valves, two equalizing valves and a vent valve required in natural gas applicationsFlare Pattern™ valve configuration provides maximum clearance for fingers during operationSoft tip valves feature a patented Acetal non-rotating soft tip stem, and a back-up metal-to-metal seal (U.S. Patent 6,820,857)
$533.13$654.47
In Stock (10)Ships within 1 business day
Combines isolating and venting in a single valve, eliminating the need for tubing and fittingsBlock valve isolates the downstream process fluids and the bleed valve exhausts upstream fluids enabling static pressure transmitters, switches or gauges to be removed without disturbing the permanent piping installationBlock valve is located on the left side and the bleed valve is located on top in a 90º orientation, venting is to the right
$438.82$538.68
Low Stock (5)Ships within 1 business day
Designed for use with differential pressure transmitters incorporating two isolation valves, two equalizing valves and a vent valve required in natural gas applicationsFlare Pattern™ valve configuration provides maximum clearance for fingers during operationSoft tip valves feature a patented Acetal non-rotating soft tip stem, and a back-up metal-to-metal seal (U.S. Patent 6,820,857)
$578.74$710.46
In Stock (35)Ships within 1 business day
Designed for use with differential pressure transmitters in liquid level applicationsAvailable in either single flange or double flange connection for direct installation100% helium leak tested to 1 x 10-4 ml/s for guaranteed performance and reliability
$260.00$319.17
Should ship between 03 Nov and 10 Nov
Subject to factory lead times
Designed for use with differential pressure transmitters incorporating two isolation valves, two equalizing valves and a vent valve required in natural gas applicationsFlare Pattern™ valve configuration provides maximum clearance for fingers during operationSoft tip valves feature a patented Acetal non-rotating soft tip stem, and a back-up metal-to-metal seal (U.S. Patent 6,820,857)
$310.18$380.77
In Stock (49)Ships within 1 business day
Combines isolating and venting in a single valve, eliminating the need for tubing and fittingsBlock valve isolates the downstream process fluids and the bleed valve exhausts upstream fluids enabling static pressure transmitters, switches or gauges to be removed without disturbing the permanent piping installationBlock valve is located on the left side and the bleed valve is located on top in a 90º orientation, venting is to the right
$373.00$457.89
In Stock (11)Ships within 1 business day
Designed for use with differential pressure transmitters in liquid level applicationsAvailable in either single flange or double flange connection for direct installation100% helium leak tested to 1 x 10-4 ml/s for guaranteed performance and reliability
$438.82$538.68
Should ship between 03 Nov and 10 Nov
Subject to factory lead times
FAQS
- A needle valve is a precision valve designed to control low flow rates with high accuracy. It uses a long, tapered needle like stem that fits into a small seat to finely regulate flow.
- Turning the valve handle moves the tapered stem in or out of the valve seat. Small adjustments result in precise changes in flow, making needle valves ideal for fine control.
- Needle valves are used for flow regulation in instrumentation, pressure gauges, sampling lines, hydraulic systems, pneumatic systems, and laboratory or process applications.
- Needle valves are commonly made from stainless steel, brass, carbon steel, and specialty alloys. Material selection depends on pressure, temperature, and fluid compatibility.
- Industries include oil and gas, chemical processing, instrumentation, power generation, laboratories, and manufacturing.