Where Quality Meets Service & Value
Manufactured and Assembled in
Costa Mesa, California U.S.A.
toll free
(866) 452-2349
Where Quality Meets Service & Value
Manufactured and Assembled in
Costa Mesa, California U.S.A.
toll free
(866) 452-2349
L Series Needle Valves with Serrated Barb Outlet
Provide precise flow control with fine adjustment of corrosive and high purity fluids.

Features
  • Standard Inlet sizes are 1/4", 3/8", & 1/2" Female NPT with a Serrated Barb Tip that accepts 1/4" - 1/2" ID Tubing
  • Max Pressure: 240 PSI @ 73 degrees Farenheit
  • FDA, USDA, and USP standards are either met and/or exceeded.
  • Unpigmented Natural PP Material. Listed under NSF Standard 14/61 for both potable water and DWV applications
  • Needle finish, SPI/SPE No. 1. Bubble tight, low torque shutoff long term performance.
  • 24 Pitch metering thread. 20% Finer metering control
  • PTFE sealed, chemical resistance, high purity.
  • No elastomers (O-Rings), metals or lubricants, no corrosion, no contamination.
  • Integrally designed panel mounting, no fasteners required, mounts to panel thicknesses from 1/16" to 1/2".
  • Valve is Crevice Free with Zero Dead Leg
  • "L Series" Technology offers all new PTFE sealing with Unlimited Life Warranty:
  • PTFE on/off seal is easily replaced in the field, no tools required
  • Exceptional low torque on/off operation

PLEASE CLICK ITEM # BELOW TO VIEW ADDITIONAL SPECIFICATIONS & DOWNLOADS

Request Information
Items
PP Needle Valve w/ Tube Connection

1/4" Female NPT Inlet x 1/4" thru 1/2" Tube ID Serrated Barb Tip Outlet, Globe (Straight Pattern) L Series Needle Valve, Natural Polypropylene
List Price $101.50
PP Needle Valve w/ Tube Connection

3/8" Female NPT Inlet x 1/4" thru 1/2" Tube ID Serrated Barb Tip Outlet, Globe (Straight Pattern) L Series Needle Valve, Natural Polypropylene
List Price $101.50
PP Needle Valve w/ Tube Connection

1/2" Female NPT Inlet x 1/4" thru 1/2" Tube ID Serrated Barb Tip Outlet, Globe (Straight Pattern) L Series Needle Valve, Natural Polypropylene
List Price $106.50
NAL-250-PPBT

1/4" Female NPT Inlet x 1/4" thru 1/2" Tube ID Serrated Barb Tip Outlet, Angle Pattern L Series Needle Valve, Natural Polypropylene
List Price $101.50
NAL-375-PPBT

3/8" Female NPT Inlet x 1/4" thru 1/2" Tube ID Serrated Barb Tip Outlet, Angle Pattern L Series Needle Valve, Natural Polypropylene
List Price $101.50
Materials N/A Polypro
Style N/A Straight Pattern, L Series N/A Straight Pattern, L Series N/A Straight Pattern, L Series N/A Angle Pattern, L Series N/A Angle Pattern, L Series
Inlet x Outlet N/A 1/4" Female NPT x Barb N/A 3/8" Female NPT x Barb N/A 1/2" Female NPT x Barb N/A 1/4" Female NPT x Barb N/A 3/8" Female NPT x Barb
Cv Factor N/A 0.310 N/A 0.310 N/A 0.620 N/A 0.426 N/A 0.426
Seal N/A PTFE

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Products

Needle Valves
Gauge Guards
Laboratory Faucets
Laboratory Turrets
Lab Base Fixtures
Spray Guns
Accessories
Product Warranty

Services

Custom Product Design & Mfg
Instrument Calibration (NIST)
Covid-19 Response

Contact Us

sales@marquestscientific.com
1 (866) 452-2349
Monday - Friday
8am - 5pm PST
Marquest Scientific, Inc.
2950 Airway Avenue, Bldg C-5
Costa Mesa, California U.S.A.