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 f...

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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)
Price Not Available
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)
Price Not Available
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)
Price Not Available
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)
Price Not Available
1" needle valve, female x female.
MPN:HNV-SSS36B
1" needle valve, female x female.
1" needle valve, female x female.
Price Not Available
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)
Price Not Available
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)
Price Not Available
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)
Price Not Available
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)
Price Not Available
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)
Price Not Available
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)
Price Not Available
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)
Price Not Available
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)
Price Not Available
1" needle valve, female x female.
MPN:HNV-SSS36B
1" needle valve, female x female.
1" needle valve, female x female.
Price Not Available
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)
Price Not Available
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)
Price Not Available
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)
Price Not Available
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)
Price Not Available