Marquest Scientific, Inc. - "L Series" On/Off Cycling Needle Valves
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All Categories > Valves (PVC, CPVC, & Polypropylene) > "L Series" On/Off Cycling Needle Valves > View Items 

"L Series" On/Off Cycling Needle Valves

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"L Series" Throttle Master Needle Valves(PVC, CPVC, & Polypropylene) 
The Ultimate in On/Off Product Cycle Life
*Offers all new Teflon Sealing with Unlimited Life Warranty

  • Teflon on/off seal is easily replaced in the field, no tools required
  • Exceptional low torque on/off operation
  • Produced in two styles: Globe pattern (straight 180°) and Angle pattern (90°).
  • Three standard end connections: 1/4", 3/8" and 1/2" FNPT. Tubing Connections Available.
  • All injection molded, rugged design and construction
  • Available in 3 Materials: PVC, Unpigmented Natural Polypro, Hi-Purity PVDF
  • 24 Pitch metering thread. 20% Finer metering control. 
  • PTFE, Teflon sealed, chemical resistance, high purity.
  • Integrally designed panel mounting, no fasteners required, mounts to panel thicknesses from 1/16" to 1/2".
  • No elastomers (O-Rings), metals or lubricants, no corrosion, no contamination.

PLEASE CLICK ITEM # TO VIEW ADDITIONAL SPECIFICATIONS & DOWNLOADS
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Item #

Material

Inlet x Outlet

Style

Seal

Cv Factor

List Price

NGL-250-PVC PVC 1/4" Female NPT Globe Pattern, L Series Needle Teflon 0.310 $49.50
NGL-375-PVC PVC 3/8" Female NPT Globe Pattern, L Series Needle Teflon 0.310 $49.50
NGL-500-PVC PVC 1/2" Female NPT Globe Pattern, L Series Needle Teflon 0.620 $54.00
NAL-250-PVC PVC 1/4" Female NPT Angle Pattern, L Series Needle Teflon 0.426 $49.50
NAL-375-PVC PVC 3/8" Female NPT Angle Pattern, L Series Needle Teflon 0.426 $49.50
NAL-500-PVC PVC 1/2" Female NPT Angle Pattern, L Series Needle Teflon 0.780 $54.00
NGL-250-CPV CPVC 1/4" Female NPT Globe Pattern, L Series Needle Teflon 0.310 $55.50
NGL-375-CPV CPVC 3/8" Female NPT Globe Pattern, L Series Needle Teflon 0.310 $55.50
NGL-500-CPV CPVC 1/2" Female NPT Globe Pattern, L Series Needle Teflon 0.620 $59.00
NAL-250-CPV CPVC 1/4" Female NPT Angle Pattern, L Series Needle Teflon 0.426 $55.50
NAL-375-CPV CPVC 3/8" Female NPT Angle Pattern, L Series Needle Teflon 0.426 $55.50
NAL-500-CPV CPVC 1/2" Female NPT Angle Pattern, L Series Needle Teflon 0.780 $59.00
NGL-250-PPR Polypro 1/4" Female NPT Globe Pattern, L Series Needle Teflon 0.310 $53.00
NGL-375-PPR Polypro 3/8" Female NPT Globe Pattern, L Series Needle Teflon 0.310 $53.00
NGL-500-PPR Polypro 1/2" Female NPT Globe Pattern, L Series Needle Teflon 0.620 $56.00
NAL-250-PPR Polypro 1/4" Female NPT Angle Pattern, L Series Needle Teflon 0.426 $53.00
NAL-375-PPR Polypro 3/8" Female NPT Angle Pattern, L Series Needle Teflon 0.426 $53.00
NAL-500-PPR Polypro 1/2" Female NPT Angle Pattern, L Series Needle Teflon 0.780 $56.00
  Results 1 - 18 of 18 1 
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