Needle Valves

Needle valves are precision valves commonly used to control the fluid flow rate in a system with high accuracy. They feature a long, tapered needle-like stem that allows for fine flow adjustment, making them ideal ...

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1" National Pipe Thread (NPT), Female x Female, 316 Stainless Steel, Hard Seat, 0.438" Orifice Needle Valve
MPN:408-FFS
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)
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)
Sale Price:

$319.47$694.33

Regular Price: $694.33, you save $374.86 (54%)
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1" National Pipe Thread (NPT), Female x Female, Steel, Hard Seat, 0.438" Orifice Needle Valve
MPN:408-FFC
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)
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)
Sale Price:

$115.26$250.51

Regular Price: $250.51, you save $135.25 (54%)
Loginto your account
1" National Pipe Thread (NPT), Male x Female, 316 Stainless Steel, Hard Seat, 0.438" Orifice Needle Valve
MPN:408-MFS
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)
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)
Sale Price:

$368.15$800.14

Regular Price: $800.14, you save $431.99 (54%)
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1" National Pipe Thread (NPT), Male x Female, Steel, Hard Seat, 0.438" Orifice Needle Valve
MPN:408-MFC
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)
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)
Sale Price:

$132.64$288.28

Regular Price: $288.28, you save $155.64 (54%)
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1" needle valve, female x female.
MPN:HNV-SSS36B
1" needle valve, female x female.
1" needle valve, female x female.

$148.48

Loginto your account
1-1/2" National Pipe Thread (NPT), Female x Female, 316 Stainless Steel, Hard Seat, 0.438" Orifice Needle Valve
MPN:412-FFS
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)
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)
Sale Price:

$351.42$763.77

Regular Price: $763.77, you save $412.35 (54%)
Loginto your account
1-1/2" National Pipe Thread (NPT), Female x Female, Steel, Hard Seat, 0.438" Orifice Needle Valve
MPN:412-FFC
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)
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)
Sale Price:

$126.84$275.66

Regular Price: $275.66, you save $148.82 (54%)
Loginto your account
1-1/2" National Pipe Thread (NPT), Male x Female, 316 Stainless Steel, Hard Seat, 0.438" Orifice Needle Valve
MPN:412-MFS
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)
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)
Sale Price:

$405.02$880.27

Regular Price: $880.27, you save $475.25 (54%)
Loginto your account
1-1/2" National Pipe Thread (NPT), Male x Female, Steel, Hard Seat, 0.438" Orifice Needle Valve
MPN:412-MFC
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)
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)
Sale Price:

$145.88$317.04

Regular Price: $317.04, you save $171.16 (54%)
Loginto your account
1" National Pipe Thread (NPT), Female x Female, 316 Stainless Steel, Hard Seat, 0.438" Orifice Needle Valve
MPN:408-FFS
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)
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)
Sale Price:

$319.47$694.33

Regular Price: $694.33, you save $374.86 (54%)
Loginto your account
1" National Pipe Thread (NPT), Female x Female, Steel, Hard Seat, 0.438" Orifice Needle Valve
MPN:408-FFC
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)
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)
Sale Price:

$115.26$250.51

Regular Price: $250.51, you save $135.25 (54%)
Loginto your account
1" National Pipe Thread (NPT), Male x Female, 316 Stainless Steel, Hard Seat, 0.438" Orifice Needle Valve
MPN:408-MFS
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)
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)
Sale Price:

$368.15$800.14

Regular Price: $800.14, you save $431.99 (54%)
Loginto your account
1" National Pipe Thread (NPT), Male x Female, Steel, Hard Seat, 0.438" Orifice Needle Valve
MPN:408-MFC
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)
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)
Sale Price:

$132.64$288.28

Regular Price: $288.28, you save $155.64 (54%)
Loginto your account
1" needle valve, female x female.
MPN:HNV-SSS36B
1" needle valve, female x female.
1" needle valve, female x female.

$148.48

Loginto your account
1-1/2" National Pipe Thread (NPT), Female x Female, 316 Stainless Steel, Hard Seat, 0.438" Orifice Needle Valve
MPN:412-FFS
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)
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)
Sale Price:

$351.42$763.77

Regular Price: $763.77, you save $412.35 (54%)
Loginto your account
1-1/2" National Pipe Thread (NPT), Female x Female, Steel, Hard Seat, 0.438" Orifice Needle Valve
MPN:412-FFC
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)
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)
Sale Price:

$126.84$275.66

Regular Price: $275.66, you save $148.82 (54%)
Loginto your account
1-1/2" National Pipe Thread (NPT), Male x Female, 316 Stainless Steel, Hard Seat, 0.438" Orifice Needle Valve
MPN:412-MFS
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)
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)
Sale Price:

$405.02$880.27

Regular Price: $880.27, you save $475.25 (54%)
Loginto your account
1-1/2" National Pipe Thread (NPT), Male x Female, Steel, Hard Seat, 0.438" Orifice Needle Valve
MPN:412-MFC
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)
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)
Sale Price:

$145.88$317.04

Regular Price: $317.04, you save $171.16 (54%)
Loginto your account